Scippy

SCIP

Solving Constraint Integer Programs

var.h
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright (C) 2002-2020 Konrad-Zuse-Zentrum */
7 /* fuer Informationstechnik Berlin */
8 /* */
9 /* SCIP is distributed under the terms of the ZIB Academic License. */
10 /* */
11 /* You should have received a copy of the ZIB Academic License */
12 /* along with SCIP; see the file COPYING. If not visit scipopt.org. */
13 /* */
14 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15 
16 /**@file var.h
17  * @ingroup INTERNALAPI
18  * @brief internal methods for problem variables
19  * @author Tobias Achterberg
20  */
21 
22 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
23 
24 #ifndef __SCIP_VAR_H__
25 #define __SCIP_VAR_H__
26 
27 
28 #include "blockmemshell/memory.h"
29 #include "scip/def.h"
30 #include "scip/type_branch.h"
31 #include "scip/type_cons.h"
32 #include "scip/type_event.h"
33 #include "scip/type_history.h"
34 #include "scip/type_implics.h"
35 #include "scip/type_lp.h"
36 #include "scip/type_message.h"
37 #include "scip/type_misc.h"
38 #include "scip/type_primal.h"
39 #include "scip/type_prob.h"
40 #include "scip/type_prop.h"
41 #include "scip/type_relax.h"
42 #include "scip/type_reopt.h"
43 #include "scip/type_result.h"
44 #include "scip/type_retcode.h"
45 #include "scip/type_scip.h"
46 #include "scip/type_set.h"
47 #include "scip/type_sol.h"
48 #include "scip/type_stat.h"
49 #include "scip/type_tree.h"
50 #include "scip/type_var.h"
51 
52 #ifndef NDEBUG
53 #include "scip/struct_var.h"
54 #else
55 #include "scip/event.h"
56 #include "scip/pub_history.h"
57 #endif
58 
59 #ifdef __cplusplus
60 extern "C" {
61 #endif
62 
63 /*
64  * domain change methods
65  */
66 
67 /** applies single bound change */
68 SCIP_RETCODE SCIPboundchgApply(
69  SCIP_BOUNDCHG* boundchg, /**< bound change to apply */
70  BMS_BLKMEM* blkmem, /**< block memory */
71  SCIP_SET* set, /**< global SCIP settings */
72  SCIP_STAT* stat, /**< problem statistics */
73  SCIP_LP* lp, /**< current LP data */
74  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
75  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
76  int depth, /**< depth in the tree, where the bound change takes place */
77  int pos, /**< position of the bound change in its bound change array */
78  SCIP_Bool* cutoff /**< pointer to store whether an infeasible bound change was detected */
79  );
80 
81 /** undoes single bound change */
82 SCIP_RETCODE SCIPboundchgUndo(
83  SCIP_BOUNDCHG* boundchg, /**< bound change to remove */
84  BMS_BLKMEM* blkmem, /**< block memory */
85  SCIP_SET* set, /**< global SCIP settings */
86  SCIP_STAT* stat, /**< problem statistics */
87  SCIP_LP* lp, /**< current LP data */
88  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
89  SCIP_EVENTQUEUE* eventqueue /**< event queue */
90  );
91 
92 /** applies domain change to the global problem */
93 SCIP_RETCODE SCIPdomchgApplyGlobal(
94  SCIP_DOMCHG* domchg, /**< domain change to apply */
95  BMS_BLKMEM* blkmem, /**< block memory */
96  SCIP_SET* set, /**< global SCIP settings */
97  SCIP_STAT* stat, /**< problem statistics */
98  SCIP_LP* lp, /**< current LP data */
99  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
100  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
101  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
102  SCIP_Bool* cutoff /**< pointer to store whether an infeasible domain change was detected */
103  );
104 
105 /** frees domain change data */
106 SCIP_RETCODE SCIPdomchgFree(
107  SCIP_DOMCHG** domchg, /**< pointer to domain change */
108  BMS_BLKMEM* blkmem, /**< block memory */
109  SCIP_SET* set, /**< global SCIP settings */
110  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
111  SCIP_LP* lp /**< current LP data */
112  );
113 
114 /** converts a dynamic domain change data into a static one, using less memory than for a dynamic one */
115 SCIP_RETCODE SCIPdomchgMakeStatic(
116  SCIP_DOMCHG** domchg, /**< pointer to domain change data */
117  BMS_BLKMEM* blkmem, /**< block memory */
118  SCIP_SET* set, /**< global SCIP settings */
119  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
120  SCIP_LP* lp /**< current LP data */
121  );
122 
123 /** applies domain change */
124 SCIP_RETCODE SCIPdomchgApply(
125  SCIP_DOMCHG* domchg, /**< domain change to apply */
126  BMS_BLKMEM* blkmem, /**< block memory */
127  SCIP_SET* set, /**< global SCIP settings */
128  SCIP_STAT* stat, /**< problem statistics */
129  SCIP_LP* lp, /**< current LP data */
130  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
131  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
132  int depth, /**< depth in the tree, where the domain change takes place */
133  SCIP_Bool* cutoff /**< pointer to store whether an infeasible domain change was detected */
134  );
135 
136 /** undoes domain change */
137 SCIP_RETCODE SCIPdomchgUndo(
138  SCIP_DOMCHG* domchg, /**< domain change to remove */
139  BMS_BLKMEM* blkmem, /**< block memory */
140  SCIP_SET* set, /**< global SCIP settings */
141  SCIP_STAT* stat, /**< problem statistics */
142  SCIP_LP* lp, /**< current LP data */
143  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
144  SCIP_EVENTQUEUE* eventqueue /**< event queue */
145  );
146 
147 /** adds bound change to domain changes */
148 SCIP_RETCODE SCIPdomchgAddBoundchg(
149  SCIP_DOMCHG** domchg, /**< pointer to domain change data structure */
150  BMS_BLKMEM* blkmem, /**< block memory */
151  SCIP_SET* set, /**< global SCIP settings */
152  SCIP_VAR* var, /**< variable to change the bounds for */
153  SCIP_Real newbound, /**< new value for bound */
154  SCIP_BOUNDTYPE boundtype, /**< type of bound for var: lower or upper bound */
155  SCIP_BOUNDCHGTYPE boundchgtype, /**< type of bound change: branching decision or inference */
156  SCIP_Real lpsolval, /**< solval of variable in last LP on path to node, or SCIP_INVALID if unknown */
157  SCIP_VAR* infervar, /**< variable that was changed (parent of var, or var itself) */
158  SCIP_CONS* infercons, /**< constraint that deduced the bound change, or NULL */
159  SCIP_PROP* inferprop, /**< propagator that deduced the bound change, or NULL */
160  int inferinfo, /**< user information for inference to help resolving the conflict */
161  SCIP_BOUNDTYPE inferboundtype /**< type of bound for inference var: lower or upper bound */
162  );
163 
164 /** adds hole change to domain changes */
165 SCIP_RETCODE SCIPdomchgAddHolechg(
166  SCIP_DOMCHG** domchg, /**< pointer to domain change data structure */
167  BMS_BLKMEM* blkmem, /**< block memory */
168  SCIP_SET* set, /**< global SCIP settings */
169  SCIP_HOLELIST** ptr, /**< changed list pointer */
170  SCIP_HOLELIST* newlist, /**< new value of list pointer */
171  SCIP_HOLELIST* oldlist /**< old value of list pointer */
172  );
173 
174 /** creates an artificial bound change information object with depth = INT_MAX and pos = -1 */
175 SCIP_RETCODE SCIPbdchginfoCreate(
176  SCIP_BDCHGINFO** bdchginfo, /**< pointer to store bound change information */
177  BMS_BLKMEM* blkmem, /**< block memory */
178  SCIP_VAR* var, /**< active variable that changed the bounds */
179  SCIP_BOUNDTYPE boundtype, /**< type of bound for var: lower or upper bound */
180  SCIP_Real oldbound, /**< old value for bound */
181  SCIP_Real newbound /**< new value for bound */
182  );
183 
184 /** frees a bound change information object */
185 void SCIPbdchginfoFree(
186  SCIP_BDCHGINFO** bdchginfo, /**< pointer to store bound change information */
187  BMS_BLKMEM* blkmem /**< block memory */
188  );
189 
190 /** returns the relaxed bound change type */
191 SCIP_Real SCIPbdchginfoGetRelaxedBound(
192  SCIP_BDCHGINFO* bdchginfo /**< bound change to add to the conflict set */
193  );
194 
195 /*
196  * methods for variables
197  */
198 
199 /** creates and captures an original problem variable; an integer variable with bounds
200  * zero and one is automatically converted into a binary variable
201  */
202 SCIP_RETCODE SCIPvarCreateOriginal(
203  SCIP_VAR** var, /**< pointer to variable data */
204  BMS_BLKMEM* blkmem, /**< block memory */
205  SCIP_SET* set, /**< global SCIP settings */
206  SCIP_STAT* stat, /**< problem statistics */
207  const char* name, /**< name of variable */
208  SCIP_Real lb, /**< lower bound of variable */
209  SCIP_Real ub, /**< upper bound of variable */
210  SCIP_Real obj, /**< objective function value */
211  SCIP_VARTYPE vartype, /**< type of variable */
212  SCIP_Bool initial, /**< should var's column be present in the initial root LP? */
213  SCIP_Bool removable, /**< is var's column removable from the LP (due to aging or cleanup)? */
214  SCIP_DECL_VARDELORIG ((*vardelorig)), /**< frees user data of original variable, or NULL */
215  SCIP_DECL_VARTRANS ((*vartrans)), /**< creates transformed user data by transforming original user data, or NULL */
216  SCIP_DECL_VARDELTRANS ((*vardeltrans)), /**< frees user data of transformed variable, or NULL */
217  SCIP_DECL_VARCOPY ((*varcopy)), /**< copies variable data if wanted to subscip, or NULL */
218  SCIP_VARDATA* vardata /**< user data for this specific variable */
219  );
220 
221 /** creates and captures a loose variable belonging to the transformed problem; an integer variable with bounds
222  * zero and one is automatically converted into a binary variable
223  */
224 SCIP_RETCODE SCIPvarCreateTransformed(
225  SCIP_VAR** var, /**< pointer to variable data */
226  BMS_BLKMEM* blkmem, /**< block memory */
227  SCIP_SET* set, /**< global SCIP settings */
228  SCIP_STAT* stat, /**< problem statistics */
229  const char* name, /**< name of variable */
230  SCIP_Real lb, /**< lower bound of variable */
231  SCIP_Real ub, /**< upper bound of variable */
232  SCIP_Real obj, /**< objective function value */
233  SCIP_VARTYPE vartype, /**< type of variable */
234  SCIP_Bool initial, /**< should var's column be present in the initial root LP? */
235  SCIP_Bool removable, /**< is var's column removable from the LP (due to aging or cleanup)? */
236  SCIP_DECL_VARDELORIG ((*vardelorig)), /**< frees user data of original variable, or NULL */
237  SCIP_DECL_VARTRANS ((*vartrans)), /**< creates transformed user data by transforming original user data, or NULL */
238  SCIP_DECL_VARDELTRANS ((*vardeltrans)), /**< frees user data of transformed variable, or NULL */
239  SCIP_DECL_VARCOPY ((*varcopy)), /**< copies variable data if wanted to subscip, or NULL */
240  SCIP_VARDATA* vardata /**< user data for this specific variable */
241  );
242 
243 /** copies and captures a variable from source to target SCIP; an integer variable with bounds zero and one is
244  * automatically converted into a binary variable; in case the variable data cannot be copied the variable is not
245  * copied at all
246  */
247 SCIP_RETCODE SCIPvarCopy(
248  SCIP_VAR** var, /**< pointer to store the target variable */
249  BMS_BLKMEM* blkmem, /**< block memory */
250  SCIP_SET* set, /**< global SCIP settings */
251  SCIP_STAT* stat, /**< problem statistics */
252  SCIP* sourcescip, /**< source SCIP data structure */
253  SCIP_VAR* sourcevar, /**< source variable */
254  SCIP_HASHMAP* varmap, /**< a hashmap to store the mapping of source variables corresponding
255  * target variables */
256  SCIP_HASHMAP* consmap, /**< a hashmap to store the mapping of source constraints to the corresponding
257  * target constraints */
258  SCIP_Bool global /**< should global or local bounds be used? */
259  );
260 
261 /** parses variable information (in cip format) out of a string; if the parsing process was successful an original
262  * variable is created and captured; if variable is of integral type, fractional bounds are automatically rounded; an
263  * integer variable with bounds zero and one is automatically converted into a binary variable
264  */
265 SCIP_RETCODE SCIPvarParseOriginal(
266  SCIP_VAR** var, /**< pointer to variable data */
267  BMS_BLKMEM* blkmem, /**< block memory */
268  SCIP_SET* set, /**< global SCIP settings */
269  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
270  SCIP_STAT* stat, /**< problem statistics */
271  const char* str, /**< string to parse */
272  SCIP_Bool initial, /**< should var's column be present in the initial root LP? */
273  SCIP_Bool removable, /**< is var's column removable from the LP (due to aging or cleanup)? */
274  SCIP_DECL_VARCOPY ((*varcopy)), /**< copies variable data if wanted to subscip, or NULL */
275  SCIP_DECL_VARDELORIG ((*vardelorig)), /**< frees user data of original variable */
276  SCIP_DECL_VARTRANS ((*vartrans)), /**< creates transformed user data by transforming original user data */
277  SCIP_DECL_VARDELTRANS ((*vardeltrans)), /**< frees user data of transformed variable */
278  SCIP_VARDATA* vardata, /**< user data for this specific variable */
279  char** endptr, /**< pointer to store the final string position if successfully */
280  SCIP_Bool* success /**< pointer store if the paring process was successful */
281  );
282 
283 /** parses variable information (in cip format) out of a string; if the parsing process was successful a loose variable
284  * belonging to the transformed problem is created and captured; if variable is of integral type, fractional bounds are
285  * automatically rounded; an integer variable with bounds zero and one is automatically converted into a binary
286  * variable
287  */
288 SCIP_RETCODE SCIPvarParseTransformed(
289  SCIP_VAR** var, /**< pointer to variable data */
290  BMS_BLKMEM* blkmem, /**< block memory */
291  SCIP_SET* set, /**< global SCIP settings */
292  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
293  SCIP_STAT* stat, /**< problem statistics */
294  const char* str, /**< string to parse */
295  SCIP_Bool initial, /**< should var's column be present in the initial root LP? */
296  SCIP_Bool removable, /**< is var's column removable from the LP (due to aging or cleanup)? */
297  SCIP_DECL_VARCOPY ((*varcopy)), /**< copies variable data if wanted to subscip, or NULL */
298  SCIP_DECL_VARDELORIG ((*vardelorig)), /**< frees user data of original variable */
299  SCIP_DECL_VARTRANS ((*vartrans)), /**< creates transformed user data by transforming original user data */
300  SCIP_DECL_VARDELTRANS ((*vardeltrans)), /**< frees user data of transformed variable */
301  SCIP_VARDATA* vardata, /**< user data for this specific variable */
302  char** endptr, /**< pointer to store the final string position if successfully */
303  SCIP_Bool* success /**< pointer store if the paring process was successful */
304  );
305 
306 /** increases usage counter of variable */
307 void SCIPvarCapture(
308  SCIP_VAR* var /**< variable */
309  );
310 
311 /** decreases usage counter of variable, and frees memory if necessary */
312 SCIP_RETCODE SCIPvarRelease(
313  SCIP_VAR** var, /**< pointer to variable */
314  BMS_BLKMEM* blkmem, /**< block memory */
315  SCIP_SET* set, /**< global SCIP settings */
316  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
317  SCIP_LP* lp /**< current LP data (may be NULL, if it's not a column variable) */
318  );
319 
320 /** change variable name */
321 /** change variable name */
322 SCIP_RETCODE SCIPvarChgName(
323  SCIP_VAR* var, /**< problem variable */
324  BMS_BLKMEM* blkmem, /**< block memory */
325  const char* name /**< name of variable */
326  );
327 
328 /** initializes variable data structure for solving */
329 void SCIPvarInitSolve(
330  SCIP_VAR* var /**< problem variable */
331  );
332 
333 /** gets and captures transformed variable of a given variable; if the variable is not yet transformed,
334  * a new transformed variable for this variable is created
335  */
336 SCIP_RETCODE SCIPvarTransform(
337  SCIP_VAR* origvar, /**< original problem variable */
338  BMS_BLKMEM* blkmem, /**< block memory of transformed problem */
339  SCIP_SET* set, /**< global SCIP settings */
340  SCIP_STAT* stat, /**< problem statistics */
341  SCIP_OBJSENSE objsense, /**< objective sense of original problem; transformed is always MINIMIZE */
342  SCIP_VAR** transvar /**< pointer to store the transformed variable */
343  );
344 
345 /** gets corresponding transformed variable of an original or negated original variable */
346 SCIP_RETCODE SCIPvarGetTransformed(
347  SCIP_VAR* origvar, /**< original problem variable */
348  BMS_BLKMEM* blkmem, /**< block memory of transformed problem */
349  SCIP_SET* set, /**< global SCIP settings */
350  SCIP_STAT* stat, /**< problem statistics */
351  SCIP_VAR** transvar /**< pointer to store the transformed variable, or NULL if not existing yet */
352  );
353 
354 /** converts transformed variable into column variable and creates LP column */
355 SCIP_RETCODE SCIPvarColumn(
356  SCIP_VAR* var, /**< problem variable */
357  BMS_BLKMEM* blkmem, /**< block memory */
358  SCIP_SET* set, /**< global SCIP settings */
359  SCIP_STAT* stat, /**< problem statistics */
360  SCIP_PROB* prob, /**< problem data */
361  SCIP_LP* lp /**< current LP data */
362  );
363 
364 /** converts column transformed variable back into loose variable, frees LP column */
365 SCIP_RETCODE SCIPvarLoose(
366  SCIP_VAR* var, /**< problem variable */
367  BMS_BLKMEM* blkmem, /**< block memory */
368  SCIP_SET* set, /**< global SCIP settings */
369  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
370  SCIP_PROB* prob, /**< problem data */
371  SCIP_LP* lp /**< current LP data */
372  );
373 
374 /** converts variable into fixed variable */
375 SCIP_RETCODE SCIPvarFix(
376  SCIP_VAR* var, /**< problem variable */
377  BMS_BLKMEM* blkmem, /**< block memory */
378  SCIP_SET* set, /**< global SCIP settings */
379  SCIP_STAT* stat, /**< problem statistics */
380  SCIP_PROB* transprob, /**< tranformed problem data */
381  SCIP_PROB* origprob, /**< original problem data */
382  SCIP_PRIMAL* primal, /**< primal data */
383  SCIP_TREE* tree, /**< branch and bound tree */
384  SCIP_REOPT* reopt, /**< reoptimization data structure */
385  SCIP_LP* lp, /**< current LP data */
386  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
387  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
388  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
389  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
390  SCIP_Real fixedval, /**< value to fix variable at */
391  SCIP_Bool* infeasible, /**< pointer to store whether the fixing is infeasible */
392  SCIP_Bool* fixed /**< pointer to store whether the fixing was performed (variable was unfixed) */
393  );
394 
395 /** transforms given variables, scalars and constant to the corresponding active variables, scalars and constant
396  *
397  * If the number of needed active variables is greater than the available slots in the variable array, nothing happens except
398  * that the required size is stored in the corresponding variable; hence, if afterwards the required size is greater than the
399  * available slots (varssize), nothing happens; otherwise, the active variable representation is stored in the arrays.
400  *
401  * The reason for this approach is that we cannot reallocate memory, since we do not know how the
402  * memory has been allocated (e.g., by a C++ 'new' or SCIP functions).
403  */
404 SCIP_RETCODE SCIPvarGetActiveRepresentatives(
405  SCIP_SET* set, /**< global SCIP settings */
406  SCIP_VAR** vars, /**< variable array to get active variables */
407  SCIP_Real* scalars, /**< scalars a_1, ..., a_n in linear sum a_1*x_1 + ... + a_n*x_n + c */
408  int* nvars, /**< pointer to number of variables and values in vars and vals array */
409  int varssize, /**< available slots in vars and scalars array */
410  SCIP_Real* constant, /**< pointer to constant c in linear sum a_1*x_1 + ... + a_n*x_n + c */
411  int* requiredsize, /**< pointer to store the required array size for the active variables */
412  SCIP_Bool mergemultiples /**< should multiple occurrences of a var be replaced by a single coeff? */
413  );
414 
415 /** transforms given variable, scalar and constant to the corresponding active, fixed, or
416  * multi-aggregated variable, scalar and constant; if the variable resolves to a fixed variable,
417  * "scalar" will be 0.0 and the value of the sum will be stored in "constant"; a multi-aggregation
418  * with only one active variable (this can happen due to fixings after the multi-aggregation),
419  * is treated like an aggregation; if the multi-aggregation constant is infinite, "scalar" will be 0.0
420  */
421 SCIP_RETCODE SCIPvarGetProbvarSum(
422  SCIP_VAR** var, /**< pointer to problem variable x in sum a*x + c */
423  SCIP_SET* set, /**< global SCIP settings */
424  SCIP_Real* scalar, /**< pointer to scalar a in sum a*x + c */
425  SCIP_Real* constant /**< pointer to constant c in sum a*x + c */
426  );
427 
428 
429 /** flattens aggregation graph of multi-aggregated variable in order to avoid exponential recursion later-on */
430 SCIP_RETCODE SCIPvarFlattenAggregationGraph(
431  SCIP_VAR* var, /**< problem variable */
432  BMS_BLKMEM* blkmem, /**< block memory */
433  SCIP_SET* set, /**< global SCIP settings */
434  SCIP_EVENTQUEUE* eventqueue /**< event queue */
435  );
436 
437 /** return for given variables all their active counterparts; all active variables will be pairwise different */
438 SCIP_RETCODE SCIPvarsGetActiveVars(
439  SCIP_SET* set, /**< global SCIP settings */
440  SCIP_VAR** vars, /**< variable array with given variables and as output all active
441  * variables, if enough slots exist
442  */
443  int* nvars, /**< number of given variables, and as output number of active variables,
444  * if enough slots exist
445  */
446  int varssize, /**< available slots in vars array */
447  int* requiredsize /**< pointer to store the required array size for the active variables */
448  );
449 
450 /** performs second step of SCIPaggregateVars():
451  * the variable to be aggregated is chosen among active problem variables x' and y', preferring a less strict variable
452  * type as aggregation variable (i.e. continuous variables are preferred over implicit integers, implicit integers
453  * or integers over binaries). If none of the variables is continuous, it is tried to find an integer
454  * aggregation (i.e. integral coefficients a'' and b'', such that a''*x' + b''*y' == c''). This can lead to
455  * the detection of infeasibility (e.g. if c'' is fractional), or to a rejection of the aggregation (denoted by
456  * aggregated == FALSE), if the resulting integer coefficients are too large and thus numerically instable.
457  */
458 SCIP_RETCODE SCIPvarTryAggregateVars(
459  SCIP_SET* set, /**< global SCIP settings */
460  BMS_BLKMEM* blkmem, /**< block memory */
461  SCIP_STAT* stat, /**< problem statistics */
462  SCIP_PROB* transprob, /**< tranformed problem data */
463  SCIP_PROB* origprob, /**< original problem data */
464  SCIP_PRIMAL* primal, /**< primal data */
465  SCIP_TREE* tree, /**< branch and bound tree */
466  SCIP_REOPT* reopt, /**< reoptimization data structure */
467  SCIP_LP* lp, /**< current LP data */
468  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
469  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
470  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
471  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
472  SCIP_VAR* varx, /**< variable x in equality a*x + b*y == c */
473  SCIP_VAR* vary, /**< variable y in equality a*x + b*y == c */
474  SCIP_Real scalarx, /**< multiplier a in equality a*x + b*y == c */
475  SCIP_Real scalary, /**< multiplier b in equality a*x + b*y == c */
476  SCIP_Real rhs, /**< right hand side c in equality a*x + b*y == c */
477  SCIP_Bool* infeasible, /**< pointer to store whether the aggregation is infeasible */
478  SCIP_Bool* aggregated /**< pointer to store whether the aggregation was successful */
479  );
480 
481 /** converts loose variable into aggregated variable */
482 SCIP_RETCODE SCIPvarAggregate(
483  SCIP_VAR* var, /**< loose problem variable */
484  BMS_BLKMEM* blkmem, /**< block memory */
485  SCIP_SET* set, /**< global SCIP settings */
486  SCIP_STAT* stat, /**< problem statistics */
487  SCIP_PROB* transprob, /**< tranformed problem data */
488  SCIP_PROB* origprob, /**< original problem data */
489  SCIP_PRIMAL* primal, /**< primal data */
490  SCIP_TREE* tree, /**< branch and bound tree */
491  SCIP_REOPT* reopt, /**< reoptimization data structure */
492  SCIP_LP* lp, /**< current LP data */
493  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
494  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
495  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
496  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
497  SCIP_VAR* aggvar, /**< loose variable y in aggregation x = a*y + c */
498  SCIP_Real scalar, /**< multiplier a in aggregation x = a*y + c */
499  SCIP_Real constant, /**< constant shift c in aggregation x = a*y + c */
500  SCIP_Bool* infeasible, /**< pointer to store whether the aggregation is infeasible */
501  SCIP_Bool* aggregated /**< pointer to store whether the aggregation was successful */
502  );
503 
504 /** converts variable into multi-aggregated variable */
505 SCIP_RETCODE SCIPvarMultiaggregate(
506  SCIP_VAR* var, /**< problem variable */
507  BMS_BLKMEM* blkmem, /**< block memory */
508  SCIP_SET* set, /**< global SCIP settings */
509  SCIP_STAT* stat, /**< problem statistics */
510  SCIP_PROB* transprob, /**< tranformed problem data */
511  SCIP_PROB* origprob, /**< original problem data */
512  SCIP_PRIMAL* primal, /**< primal data */
513  SCIP_TREE* tree, /**< branch and bound tree */
514  SCIP_REOPT* reopt, /**< reoptimization data structure */
515  SCIP_LP* lp, /**< current LP data */
516  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
517  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
518  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
519  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
520  int naggvars, /**< number n of variables in aggregation x = a_1*y_1 + ... + a_n*y_n + c */
521  SCIP_VAR** aggvars, /**< variables y_i in aggregation x = a_1*y_1 + ... + a_n*y_n + c */
522  SCIP_Real* scalars, /**< multipliers a_i in aggregation x = a_1*y_1 + ... + a_n*y_n + c */
523  SCIP_Real constant, /**< constant shift c in aggregation x = a_1*y_1 + ... + a_n*y_n + c */
524  SCIP_Bool* infeasible, /**< pointer to store whether the aggregation is infeasible */
525  SCIP_Bool* aggregated /**< pointer to store whether the aggregation was successful */
526  );
527 
528 /** returns whether variable is not allowed to be multi-aggregated */
529 SCIP_Bool SCIPvarDoNotMultaggr(
530  SCIP_VAR* var /**< problem variable */
531  );
532 
533 /** returns whether the variable was flagged for deletion from global structures (cliques etc.) */
534 SCIP_Bool SCIPvarIsMarkedDeleteGlobalStructures(
535  SCIP_VAR* var /**< problem variable */
536  );
537 
538 /** gets negated variable x' = offset - x of problem variable x; the negated variable is created if not yet existing;
539  * the negation offset of binary variables is always 1, the offset of other variables is fixed to lb + ub when the
540  * negated variable is created
541  */
542 SCIP_RETCODE SCIPvarNegate(
543  SCIP_VAR* var, /**< problem variable to negate */
544  BMS_BLKMEM* blkmem, /**< block memory of transformed problem */
545  SCIP_SET* set, /**< global SCIP settings */
546  SCIP_STAT* stat, /**< problem statistics */
547  SCIP_VAR** negvar /**< pointer to store the negated variable */
548  );
549 
550 /** informs variable that its position in problem's vars array changed */
551 void SCIPvarSetProbindex(
552  SCIP_VAR* var, /**< problem variable */
553  int probindex /**< new problem index of variable */
554  );
555 
556 /** gives the variable a new name
557  *
558  * @note the old pointer is overwritten, which might result in a memory leakage
559  */
560 void SCIPvarSetNamePointer(
561  SCIP_VAR* var, /**< problem variable */
562  const char* name /**< new name of variable */
563  );
564 
565 /** informs variable that it will be removed from the problem; adjusts probindex and removes variable from the
566  * implication graph;
567  * If 'final' is TRUE, the thorough implication graph removal is not performed. Instead, only the
568  * variable bounds and implication data structures of the variable are freed. Since in the final removal
569  * of all variables from the transformed problem, this deletes the implication graph completely and is faster
570  * than removing the variables one by one, each time updating all lists of the other variables.
571  */
572 SCIP_RETCODE SCIPvarRemove(
573  SCIP_VAR* var, /**< problem variable */
574  BMS_BLKMEM* blkmem, /**< block memory buffer */
575  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
576  SCIP_SET* set, /**< global SCIP settings */
577  SCIP_Bool final /**< is this the final removal of all problem variables? */
578  );
579 
580 /** marks the variable to be deleted from the problem */
581 void SCIPvarMarkDeleted(
582  SCIP_VAR* var /**< problem variable */
583  );
584 
585 /** marks the variable to not to be multi-aggregated */
586 SCIP_RETCODE SCIPvarMarkDoNotMultaggr(
587  SCIP_VAR* var /**< problem variable */
588  );
589 
590 /** modifies lock numbers for rounding */
591 SCIP_RETCODE SCIPvarAddLocks(
592  SCIP_VAR* var, /**< problem variable */
593  BMS_BLKMEM* blkmem, /**< block memory */
594  SCIP_SET* set, /**< global SCIP settings */
595  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
596  SCIP_LOCKTYPE locktype, /**< type of the variable locks */
597  int addnlocksdown, /**< increase in number of rounding down locks */
598  int addnlocksup /**< increase in number of rounding up locks */
599  );
600 
601 /** changes type of variable; cannot be called, if var belongs to a problem */
602 SCIP_RETCODE SCIPvarChgType(
603  SCIP_VAR* var, /**< problem variable to change */
604  BMS_BLKMEM* blkmem, /**< block memory */
605  SCIP_SET* set, /**< global SCIP settings */
606  SCIP_PRIMAL* primal, /**< primal data */
607  SCIP_LP* lp, /**< current LP data */
608  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
609  SCIP_VARTYPE vartype /**< new type of variable */
610  );
611 
612 /** changes objective value of variable */
613 SCIP_RETCODE SCIPvarChgObj(
614  SCIP_VAR* var, /**< variable to change */
615  BMS_BLKMEM* blkmem, /**< block memory */
616  SCIP_SET* set, /**< global SCIP settings */
617  SCIP_PROB* prob, /**< problem data */
618  SCIP_PRIMAL* primal, /**< primal data */
619  SCIP_LP* lp, /**< current LP data */
620  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
621  SCIP_Real newobj /**< new objective value for variable */
622  );
623 
624 /** adds value to objective value of variable */
625 SCIP_RETCODE SCIPvarAddObj(
626  SCIP_VAR* var, /**< variable to change */
627  BMS_BLKMEM* blkmem, /**< block memory */
628  SCIP_SET* set, /**< global SCIP settings */
629  SCIP_STAT* stat, /**< problem statistics */
630  SCIP_PROB* transprob, /**< tranformed problem data */
631  SCIP_PROB* origprob, /**< original problem data */
632  SCIP_PRIMAL* primal, /**< primal data */
633  SCIP_TREE* tree, /**< branch and bound tree */
634  SCIP_REOPT* reopt, /**< reoptimization data structure */
635  SCIP_LP* lp, /**< current LP data */
636  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
637  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
638  SCIP_Real addobj /**< additional objective value for variable */
639  );
640 
641 /** changes objective value of variable in current dive */
642 SCIP_RETCODE SCIPvarChgObjDive(
643  SCIP_VAR* var, /**< problem variable to change */
644  SCIP_SET* set, /**< global SCIP settings */
645  SCIP_LP* lp, /**< current LP data */
646  SCIP_Real newobj /**< new objective value for variable */
647  );
648 
649 /** adjust lower bound to integral value, if variable is integral */
650 void SCIPvarAdjustLb(
651  SCIP_VAR* var, /**< problem variable */
652  SCIP_SET* set, /**< global SCIP settings */
653  SCIP_Real* lb /**< pointer to lower bound to adjust */
654  );
655 
656 /** adjust upper bound to integral value, if variable is integral */
657 void SCIPvarAdjustUb(
658  SCIP_VAR* var, /**< problem variable */
659  SCIP_SET* set, /**< global SCIP settings */
660  SCIP_Real* ub /**< pointer to upper bound to adjust */
661  );
662 
663 /** adjust lower or upper bound to integral value, if variable is integral */
664 void SCIPvarAdjustBd(
665  SCIP_VAR* var, /**< problem variable */
666  SCIP_SET* set, /**< global SCIP settings */
667  SCIP_BOUNDTYPE boundtype, /**< type of bound to adjust */
668  SCIP_Real* bd /**< pointer to bound to adjust */
669  );
670 
671 /** changes lower bound of original variable in original problem */
672 SCIP_RETCODE SCIPvarChgLbOriginal(
673  SCIP_VAR* var, /**< problem variable to change */
674  SCIP_SET* set, /**< global SCIP settings */
675  SCIP_Real newbound /**< new bound for variable */
676  );
677 
678 /** changes upper bound of original variable in original problem */
679 SCIP_RETCODE SCIPvarChgUbOriginal(
680  SCIP_VAR* var, /**< problem variable to change */
681  SCIP_SET* set, /**< global SCIP settings */
682  SCIP_Real newbound /**< new bound for variable */
683  );
684 
685 /** changes global lower bound of variable; if possible, adjusts bound to integral value;
686  * updates local lower bound if the global bound is tighter
687  */
688 SCIP_RETCODE SCIPvarChgLbGlobal(
689  SCIP_VAR* var, /**< problem variable to change */
690  BMS_BLKMEM* blkmem, /**< block memory */
691  SCIP_SET* set, /**< global SCIP settings */
692  SCIP_STAT* stat, /**< problem statistics */
693  SCIP_LP* lp, /**< current LP data, may be NULL for original variables */
694  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage, may be NULL for original variables */
695  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
696  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
697  SCIP_Real newbound /**< new bound for variable */
698  );
699 
700 /** changes global upper bound of variable; if possible, adjusts bound to integral value;
701  * updates local upper bound if the global bound is tighter
702  */
703 SCIP_RETCODE SCIPvarChgUbGlobal(
704  SCIP_VAR* var, /**< problem variable to change */
705  BMS_BLKMEM* blkmem, /**< block memory */
706  SCIP_SET* set, /**< global SCIP settings */
707  SCIP_STAT* stat, /**< problem statistics */
708  SCIP_LP* lp, /**< current LP data, may be NULL for original variables */
709  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage, may be NULL for original variables */
710  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
711  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
712  SCIP_Real newbound /**< new bound for variable */
713  );
714 
715 /** changes global bound of variable; if possible, adjusts bound to integral value;
716  * updates local bound if the global bound is tighter
717  */
718 SCIP_RETCODE SCIPvarChgBdGlobal(
719  SCIP_VAR* var, /**< problem variable to change */
720  BMS_BLKMEM* blkmem, /**< block memory */
721  SCIP_SET* set, /**< global SCIP settings */
722  SCIP_STAT* stat, /**< problem statistics */
723  SCIP_LP* lp, /**< current LP data, may be NULL for original variables */
724  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage, may be NULL for original variables */
725  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
726  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
727  SCIP_Real newbound, /**< new bound for variable */
728  SCIP_BOUNDTYPE boundtype /**< type of bound: lower or upper bound */
729  );
730 
731 /** changes current local lower bound of variable; if possible, adjusts bound to integral value; stores inference
732  * information in variable
733  */
734 SCIP_RETCODE SCIPvarChgLbLocal(
735  SCIP_VAR* var, /**< problem variable to change */
736  BMS_BLKMEM* blkmem, /**< block memory */
737  SCIP_SET* set, /**< global SCIP settings */
738  SCIP_STAT* stat, /**< problem statistics */
739  SCIP_LP* lp, /**< current LP data, may be NULL for original variables */
740  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage, may be NULL for original variables */
741  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
742  SCIP_Real newbound /**< new bound for variable */
743  );
744 
745 /** changes current local upper bound of variable; if possible, adjusts bound to integral value; stores inference
746  * information in variable
747  */
748 SCIP_RETCODE SCIPvarChgUbLocal(
749  SCIP_VAR* var, /**< problem variable to change */
750  BMS_BLKMEM* blkmem, /**< block memory */
751  SCIP_SET* set, /**< global SCIP settings */
752  SCIP_STAT* stat, /**< problem statistics */
753  SCIP_LP* lp, /**< current LP data, may be NULL for original variables */
754  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage, may be NULL for original variables */
755  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
756  SCIP_Real newbound /**< new bound for variable */
757  );
758 
759 /** changes current local bound of variable; if possible, adjusts bound to integral value; stores inference
760  * information in variable
761  */
762 SCIP_RETCODE SCIPvarChgBdLocal(
763  SCIP_VAR* var, /**< problem variable to change */
764  BMS_BLKMEM* blkmem, /**< block memory */
765  SCIP_SET* set, /**< global SCIP settings */
766  SCIP_STAT* stat, /**< problem statistics */
767  SCIP_LP* lp, /**< current LP data, may be NULL for original variables */
768  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage, may be NULL for original variables */
769  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
770  SCIP_Real newbound, /**< new bound for variable */
771  SCIP_BOUNDTYPE boundtype /**< type of bound: lower or upper bound */
772  );
773 
774 /** changes lazy lower bound of the variable, this is only possible if the variable is not in the LP yet */
775 SCIP_RETCODE SCIPvarChgLbLazy(
776  SCIP_VAR* var, /**< problem variable */
777  SCIP_SET* set, /**< global SCIP settings */
778  SCIP_Real lazylb /**< the lazy lower bound to be set */
779  );
780 
781 /** changes lazy upper bound of the variable, this is only possible if the variable is not in the LP yet */
782 SCIP_RETCODE SCIPvarChgUbLazy(
783  SCIP_VAR* var, /**< problem variable */
784  SCIP_SET* set, /**< global SCIP settings */
785  SCIP_Real lazylb /**< the lazy lower bound to be set */
786  );
787 
788 /** changes lower bound of variable in current dive; if possible, adjusts bound to integral value */
789 SCIP_RETCODE SCIPvarChgLbDive(
790  SCIP_VAR* var, /**< problem variable to change */
791  SCIP_SET* set, /**< global SCIP settings */
792  SCIP_LP* lp, /**< current LP data */
793  SCIP_Real newbound /**< new bound for variable */
794  );
795 
796 /** changes upper bound of variable in current dive; if possible, adjusts bound to integral value */
797 SCIP_RETCODE SCIPvarChgUbDive(
798  SCIP_VAR* var, /**< problem variable to change */
799  SCIP_SET* set, /**< global SCIP settings */
800  SCIP_LP* lp, /**< current LP data */
801  SCIP_Real newbound /**< new bound for variable */
802  );
803 
804 /** for a multi-aggregated variable, gives the local lower bound computed by adding the local bounds from all aggregation variables
805  * this lower bound may be tighter than the one given by SCIPvarGetLbLocal, since the latter is not updated if bounds of aggregation variables are changing
806  * calling this function for a non-multi-aggregated variable is not allowed
807  */
808 SCIP_Real SCIPvarGetMultaggrLbLocal(
809  SCIP_VAR* var, /**< problem variable */
810  SCIP_SET* set /**< global SCIP settings */
811  );
812 
813 /** for a multi-aggregated variable, gives the local upper bound computed by adding the local bounds from all aggregation variables
814  * this upper bound may be tighter than the one given by SCIPvarGetUbLocal, since the latter is not updated if bounds of aggregation variables are changing
815  * calling this function for a non-multi-aggregated variable is not allowed
816  */
817 SCIP_Real SCIPvarGetMultaggrUbLocal(
818  SCIP_VAR* var, /**< problem variable */
819  SCIP_SET* set /**< global SCIP settings */
820  );
821 
822 /** for a multi-aggregated variable, gives the global lower bound computed by adding the global bounds from all aggregation variables
823  * this global bound may be tighter than the one given by SCIPvarGetLbGlobal, since the latter is not updated if bounds of aggregation variables are changing
824  * calling this function for a non-multi-aggregated variable is not allowed
825  */
826 SCIP_Real SCIPvarGetMultaggrLbGlobal(
827  SCIP_VAR* var, /**< problem variable */
828  SCIP_SET* set /**< global SCIP settings */
829  );
830 
831 /** for a multi-aggregated variable, gives the global upper bound computed by adding the global bounds from all aggregation variables
832  * this upper bound may be tighter than the one given by SCIPvarGetUbGlobal, since the latter is not updated if bounds of aggregation variables are changing
833  * calling this function for a non-multi-aggregated variable is not allowed
834  */
835 SCIP_Real SCIPvarGetMultaggrUbGlobal(
836  SCIP_VAR* var, /**< problem variable */
837  SCIP_SET* set /**< global SCIP settings */
838  );
839 
840 /** adds a hole to the original domain of the variable*/
841 SCIP_RETCODE SCIPvarAddHoleOriginal(
842  SCIP_VAR* var, /**< problem variable */
843  BMS_BLKMEM* blkmem, /**< block memory */
844  SCIP_SET* set, /**< global SCIP settings */
845  SCIP_Real left, /**< left bound of open interval in new hole */
846  SCIP_Real right /**< right bound of open interval in new hole */
847  );
848 
849 /** adds a hole to the variable's global domain */
850 SCIP_RETCODE SCIPvarAddHoleGlobal(
851  SCIP_VAR* var, /**< problem variable */
852  BMS_BLKMEM* blkmem, /**< block memory */
853  SCIP_SET* set, /**< global SCIP settings */
854  SCIP_STAT* stat, /**< problem statistics */
855  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
856  SCIP_Real left, /**< left bound of open interval in new hole */
857  SCIP_Real right, /**< right bound of open interval in new hole */
858  SCIP_Bool* added /**< pointer to store whether the hole was added, or NULL */
859  );
860 
861 /** adds a hole to the variable's current local domain */
862 SCIP_RETCODE SCIPvarAddHoleLocal(
863  SCIP_VAR* var, /**< problem variable */
864  BMS_BLKMEM* blkmem, /**< block memory */
865  SCIP_SET* set, /**< global SCIP settings */
866  SCIP_STAT* stat, /**< problem statistics */
867  SCIP_EVENTQUEUE* eventqueue, /**< event queue, may be NULL for original variables */
868  SCIP_Real left, /**< left bound of open interval in new hole */
869  SCIP_Real right, /**< right bound of open interval in new hole */
870  SCIP_Bool* added /**< pointer to store whether the hole was added, or NULL */
871  );
872 
873 /** resets the global and local bounds of original variable to their original values */
874 SCIP_RETCODE SCIPvarResetBounds(
875  SCIP_VAR* var, /**< problem variable */
876  BMS_BLKMEM* blkmem, /**< block memory */
877  SCIP_SET* set, /**< global SCIP settings */
878  SCIP_STAT* stat /**< problem statistics */
879  );
880 
881 /** returns at which depth in the tree a bound change was applied to the variable that conflicts with the
882  * given bound; returns -1 if the bound does not conflict with the current local bounds of the variable
883  */
884 int SCIPvarGetConflictingBdchgDepth(
885  SCIP_VAR* var, /**< problem variable */
886  SCIP_SET* set, /**< global SCIP settings */
887  SCIP_BOUNDTYPE boundtype, /**< bound type of the conflicting bound */
888  SCIP_Real bound /**< conflicting bound */
889  );
890 
891 /** informs variable x about a globally valid variable lower bound x >= b*z + d with integer variable z;
892  * if z is binary, the corresponding valid implication for z is also added;
893  * improves the global bounds of the variable and the vlb variable if possible
894  */
895 SCIP_RETCODE SCIPvarAddVlb(
896  SCIP_VAR* var, /**< problem variable */
897  BMS_BLKMEM* blkmem, /**< block memory */
898  SCIP_SET* set, /**< global SCIP settings */
899  SCIP_STAT* stat, /**< problem statistics */
900  SCIP_PROB* transprob, /**< transformed problem */
901  SCIP_PROB* origprob, /**< original problem */
902  SCIP_TREE* tree, /**< branch and bound tree if in solving stage */
903  SCIP_REOPT* reopt, /**< reoptimization data structure */
904  SCIP_LP* lp, /**< current LP data */
905  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
906  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
907  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
908  SCIP_VAR* vlbvar, /**< variable z in x >= b*z + d */
909  SCIP_Real vlbcoef, /**< coefficient b in x >= b*z + d */
910  SCIP_Real vlbconstant, /**< constant d in x >= b*z + d */
911  SCIP_Bool transitive, /**< should transitive closure of implication also be added? */
912  SCIP_Bool* infeasible, /**< pointer to store whether an infeasibility was detected */
913  int* nbdchgs /**< pointer to store the number of performed bound changes, or NULL */
914  );
915 
916 /** informs variable x about a globally valid variable upper bound x <= b*z + d with integer variable z;
917  * if z is binary, the corresponding valid implication for z is also added;
918  * updates the global bounds of the variable and the vub variable correspondingly
919  */
920 SCIP_RETCODE SCIPvarAddVub(
921  SCIP_VAR* var, /**< problem variable */
922  BMS_BLKMEM* blkmem, /**< block memory */
923  SCIP_SET* set, /**< global SCIP settings */
924  SCIP_STAT* stat, /**< problem statistics */
925  SCIP_PROB* transprob, /**< transformed problem */
926  SCIP_PROB* origprob, /**< original problem */
927  SCIP_TREE* tree, /**< branch and bound tree if in solving stage */
928  SCIP_REOPT* reopt, /**< reoptimization data structure */
929  SCIP_LP* lp, /**< current LP data */
930  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
931  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
932  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
933  SCIP_VAR* vubvar, /**< variable z in x <= b*z + d */
934  SCIP_Real vubcoef, /**< coefficient b in x <= b*z + d */
935  SCIP_Real vubconstant, /**< constant d in x <= b*z + d */
936  SCIP_Bool transitive, /**< should transitive closure of implication also be added? */
937  SCIP_Bool* infeasible, /**< pointer to store whether an infeasibility was detected */
938  int* nbdchgs /**< pointer to store the number of performed bound changes, or NULL */
939  );
940 
941 /** informs binary variable x about a globally valid implication: x == 0 or x == 1 ==> y <= b or y >= b;
942  * also adds the corresponding implication or variable bound to the implied variable;
943  * if the implication is conflicting, the variable is fixed to the opposite value;
944  * if the variable is already fixed to the given value, the implication is performed immediately;
945  * if the implication is redundant with respect to the variables' global bounds, it is ignored
946  */
947 SCIP_RETCODE SCIPvarAddImplic(
948  SCIP_VAR* var, /**< problem variable */
949  BMS_BLKMEM* blkmem, /**< block memory */
950  SCIP_SET* set, /**< global SCIP settings */
951  SCIP_STAT* stat, /**< problem statistics */
952  SCIP_PROB* transprob, /**< transformed problem */
953  SCIP_PROB* origprob, /**< original problem */
954  SCIP_TREE* tree, /**< branch and bound tree if in solving stage */
955  SCIP_REOPT* reopt, /**< reoptimization data structure */
956  SCIP_LP* lp, /**< current LP data */
957  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
958  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
959  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
960  SCIP_Bool varfixing, /**< FALSE if y should be added in implications for x == 0, TRUE for x == 1 */
961  SCIP_VAR* implvar, /**< variable y in implication y <= b or y >= b */
962  SCIP_BOUNDTYPE impltype, /**< type of implication y <= b (SCIP_BOUNDTYPE_UPPER) or y >= b (SCIP_BOUNDTYPE_LOWER) */
963  SCIP_Real implbound, /**< bound b in implication y <= b or y >= b */
964  SCIP_Bool transitive, /**< should transitive closure of implication also be added? */
965  SCIP_Bool* infeasible, /**< pointer to store whether an infeasibility was detected */
966  int* nbdchgs /**< pointer to store the number of performed bound changes, or NULL */
967  );
968 
969 /** fixes the bounds of a binary variable to the given value, counting bound changes and detecting infeasibility */
970 SCIP_RETCODE SCIPvarFixBinary(
971  SCIP_VAR* var, /**< problem variable */
972  BMS_BLKMEM* blkmem, /**< block memory */
973  SCIP_SET* set, /**< global SCIP settings */
974  SCIP_STAT* stat, /**< problem statistics */
975  SCIP_PROB* transprob, /**< transformed problem */
976  SCIP_PROB* origprob, /**< original problem */
977  SCIP_TREE* tree, /**< branch and bound tree if in solving stage */
978  SCIP_REOPT* reopt, /**< reoptimization data structure */
979  SCIP_LP* lp, /**< current LP data */
980  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
981  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
982  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
983  SCIP_Bool value, /**< value to fix variable to */
984  SCIP_Bool* infeasible, /**< pointer to store whether an infeasibility was detected */
985  int* nbdchgs /**< pointer to count the number of performed bound changes, or NULL */
986  );
987 
988 /** adds the variable to the given clique and updates the list of cliques the binary variable is member of;
989  * if the variable now appears twice in the clique with the same value, it is fixed to the opposite value;
990  * if the variable now appears twice in the clique with opposite values, all other variables are fixed to
991  * the opposite of the value they take in the clique
992  */
993 SCIP_RETCODE SCIPvarAddClique(
994  SCIP_VAR* var, /**< problem variable */
995  BMS_BLKMEM* blkmem, /**< block memory */
996  SCIP_SET* set, /**< global SCIP settings */
997  SCIP_STAT* stat, /**< problem statistics */
998  SCIP_PROB* transprob, /**< transformed problem */
999  SCIP_PROB* origprob, /**< original problem */
1000  SCIP_TREE* tree, /**< branch and bound tree if in solving stage */
1001  SCIP_REOPT* reopt, /**< reoptimization data structure */
1002  SCIP_LP* lp, /**< current LP data */
1003  SCIP_BRANCHCAND* branchcand, /**< branching candidate storage */
1004  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
1005  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
1006  SCIP_Bool value, /**< value of the variable in the clique */
1007  SCIP_CLIQUE* clique, /**< clique the variable should be added to */
1008  SCIP_Bool* infeasible, /**< pointer to store whether an infeasibility was detected */
1009  int* nbdchgs /**< pointer to count the number of performed bound changes, or NULL */
1010  );
1011 
1012 /** adds a filled clique to the cliquelists of all corresponding variables */
1013 SCIP_RETCODE SCIPvarsAddClique(
1014  SCIP_VAR** vars, /**< problem variables */
1015  SCIP_Bool* values, /**< values of the variables in the clique */
1016  int nvars, /**< number of problem variables */
1017  BMS_BLKMEM* blkmem, /**< block memory */
1018  SCIP_SET* set, /**< global SCIP settings */
1019  SCIP_CLIQUE* clique /**< clique that contains all given variables and values */
1020  );
1021 
1022 /** deletes the variable from the given clique and updates the list of cliques the binary variable is member of */
1023 SCIP_RETCODE SCIPvarDelClique(
1024  SCIP_VAR* var, /**< problem variable */
1025  BMS_BLKMEM* blkmem, /**< block memory */
1026  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
1027  SCIP_Bool value, /**< value of the variable in the clique */
1028  SCIP_CLIQUE* clique /**< clique the variable should be removed from */
1029  );
1030 
1031 /** adds a clique to the list of cliques of the given binary variable, but does not change the clique
1032  * itself
1033  */
1034 SCIP_RETCODE SCIPvarAddCliqueToList(
1035  SCIP_VAR* var, /**< problem variable */
1036  BMS_BLKMEM* blkmem, /**< block memory */
1037  SCIP_SET* set, /**< global SCIP settings */
1038  SCIP_Bool value, /**< value of the variable in the clique */
1039  SCIP_CLIQUE* clique /**< clique that should be removed from the variable's clique list */
1040  );
1041 
1042 /** deletes a clique from the list of cliques the binary variable is member of, but does not change the clique
1043  * itself
1044  */
1045 SCIP_RETCODE SCIPvarDelCliqueFromList(
1046  SCIP_VAR* var, /**< problem variable */
1047  BMS_BLKMEM* blkmem, /**< block memory */
1048  SCIP_Bool value, /**< value of the variable in the clique */
1049  SCIP_CLIQUE* clique /**< clique that should be removed from the variable's clique list */
1050  );
1051 
1052 /** sets the branch factor of the variable; this value can be used in the branching methods to scale the score
1053  * values of the variables; higher factor leads to a higher probability that this variable is chosen for branching
1054  */
1055 SCIP_RETCODE SCIPvarChgBranchFactor(
1056  SCIP_VAR* var, /**< problem variable */
1057  SCIP_SET* set, /**< global SCIP settings */
1058  SCIP_Real branchfactor /**< factor to weigh variable's branching score with */
1059  );
1060 
1061 /** sets the branch priority of the variable; variables with higher branch priority are always preferred to variables
1062  * with lower priority in selection of branching variable
1063  */
1064 SCIP_RETCODE SCIPvarChgBranchPriority(
1065  SCIP_VAR* var, /**< problem variable */
1066  int branchpriority /**< branching priority of the variable */
1067  );
1068 
1069 /** sets the branch direction of the variable; variables with higher branch direction are always preferred to variables
1070  * with lower direction in selection of branching variable
1071  */
1072 SCIP_RETCODE SCIPvarChgBranchDirection(
1073  SCIP_VAR* var, /**< problem variable */
1074  SCIP_BRANCHDIR branchdirection /**< preferred branch direction of the variable (downwards, upwards, auto) */
1075  );
1076 
1077 /** gets objective value of variable in current SCIP_LP; the value can be different from the bound stored in the variable's own
1078  * data due to diving, that operate only on the LP without updating the variables
1079  */
1080 SCIP_Real SCIPvarGetObjLP(
1081  SCIP_VAR* var /**< problem variable */
1082  );
1083 
1084 /** gets lower bound of variable in current SCIP_LP; the bound can be different from the bound stored in the variable's own
1085  * data due to diving or conflict analysis, that operate only on the LP without updating the variables
1086  */
1087 SCIP_Real SCIPvarGetLbLP(
1088  SCIP_VAR* var, /**< problem variable */
1089  SCIP_SET* set /**< global SCIP settings */
1090  );
1091 
1092 /** gets upper bound of variable in current SCIP_LP; the bound can be different from the bound stored in the variable's own
1093  * data due to diving or conflict analysis, that operate only on the LP without updating the variables
1094  */
1095 SCIP_Real SCIPvarGetUbLP(
1096  SCIP_VAR* var, /**< problem variable */
1097  SCIP_SET* set /**< global SCIP settings */
1098  );
1099 
1100 /** returns solution value and index of variable lower bound that is closest to the variable's value in the given primal solution
1101  * or current LP solution if no primal solution is given; returns an index of -1 if no variable lower bound is available
1102  */
1103 void SCIPvarGetClosestVlb(
1104  SCIP_VAR* var, /**< active problem variable */
1105  SCIP_SOL* sol, /**< primal solution, or NULL for LP solution */
1106  SCIP_SET* set, /**< global SCIP settings */
1107  SCIP_STAT* stat, /**< problem statistics */
1108  SCIP_Real* closestvlb, /**< pointer to store the value of the closest variable lower bound */
1109  int* closestvlbidx /**< pointer to store the index of the closest variable lower bound */
1110  );
1111 
1112 /** returns solution value and index of variable upper bound that is closest to the variable's value in the given primal solution;
1113  * or current LP solution if no primal solution is given; returns an index of -1 if no variable upper bound is available
1114  */
1115 void SCIPvarGetClosestVub(
1116  SCIP_VAR* var, /**< active problem variable */
1117  SCIP_SOL* sol, /**< primal solution, or NULL for LP solution */
1118  SCIP_SET* set, /**< global SCIP settings */
1119  SCIP_STAT* stat, /**< problem statistics */
1120  SCIP_Real* closestvub, /**< pointer to store the value of the closest variable upper bound */
1121  int* closestvubidx /**< pointer to store the index of the closest variable upper bound */
1122  );
1123 
1124 /** remembers the current solution as root solution in the problem variables */
1125 void SCIPvarStoreRootSol(
1126  SCIP_VAR* var, /**< problem variable */
1127  SCIP_Bool roothaslp /**< is the root solution from LP? */
1128  );
1129 
1130 /** updates the current solution as best root solution in the problem variables if it is better */
1131 void SCIPvarUpdateBestRootSol(
1132  SCIP_VAR* var, /**< problem variable */
1133  SCIP_SET* set, /**< global SCIP settings */
1134  SCIP_Real rootsol, /**< root solution value */
1135  SCIP_Real rootredcost, /**< root reduced cost */
1136  SCIP_Real rootlpobjval /**< objective value of the root LP */
1137  );
1138 
1139 /** returns the solution value of the problem variables in the relaxation solution */
1140 SCIP_Real SCIPvarGetRelaxSol(
1141  SCIP_VAR* var, /**< problem variable */
1142  SCIP_SET* set /**< global SCIP settings */
1143  );
1144 
1145 /** returns the solution value of the transformed problem variable in the relaxation solution */
1146 SCIP_Real SCIPvarGetRelaxSolTransVar(
1147  SCIP_VAR* var /**< problem variable */
1148  );
1149 
1150 /** returns for the given binary variable the reduced cost which are given by the variable itself and its implication if
1151  * the binary variable is fixed to the given value
1152  */
1153 SCIP_Real SCIPvarGetImplRedcost(
1154  SCIP_VAR* var, /**< problem variable */
1155  SCIP_SET* set, /**< global SCIP settings */
1156  SCIP_Bool varfixing, /**< FALSE if for x == 0, TRUE for x == 1 */
1157  SCIP_STAT* stat, /**< problem statistics */
1158  SCIP_PROB* prob, /**< transformed problem, or NULL */
1159  SCIP_LP* lp /**< current LP data */
1160  );
1161 
1162 
1163 /** stores the solution value as relaxation solution in the problem variable */
1164 SCIP_RETCODE SCIPvarSetRelaxSol(
1165  SCIP_VAR* var, /**< problem variable */
1166  SCIP_SET* set, /**< global SCIP settings */
1167  SCIP_RELAXATION* relaxation, /**< global relaxation data */
1168  SCIP_Real solval, /**< solution value in the current relaxation solution */
1169  SCIP_Bool updateobj /**< should the objective value be updated? */
1170  );
1171 
1172 /** stores the solution value as NLP solution in the problem variable */
1173 SCIP_RETCODE SCIPvarSetNLPSol(
1174  SCIP_VAR* var, /**< problem variable */
1175  SCIP_SET* set, /**< global SCIP settings */
1176  SCIP_Real solval /**< solution value in the current NLP solution */
1177  );
1178 
1179 /** resolves variable to columns and adds them with the coefficient to the row */
1180 SCIP_RETCODE SCIPvarAddToRow(
1181  SCIP_VAR* var, /**< problem variable */
1182  BMS_BLKMEM* blkmem, /**< block memory */
1183  SCIP_SET* set, /**< global SCIP settings */
1184  SCIP_STAT* stat, /**< problem statistics */
1185  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
1186  SCIP_PROB* prob, /**< problem data */
1187  SCIP_LP* lp, /**< current LP data */
1188  SCIP_ROW* row, /**< LP row */
1189  SCIP_Real val /**< value of coefficient */
1190  );
1191 
1192 
1193 /** merge two variable histories together; a typical use case is that \p othervar is an image of the target variable
1194  * in a SCIP copy. Method should be applied with care, especially because no internal checks are performed whether
1195  * the history merge is reasonable
1196  *
1197  * @note Do not use this method if the two variables originate from two SCIP's with different objective functions, since
1198  * this corrupts the variable pseudo costs
1199  * @note Apply with care; no internal checks are performed if the two variables should be merged
1200  */
1201 void SCIPvarMergeHistories(
1202  SCIP_VAR* targetvar, /**< the variable that should contain both histories afterwards */
1203  SCIP_VAR* othervar, /**< the variable whose history is to be merged with that of the target variable */
1204  SCIP_STAT* stat /**< problem statistics */
1205  );
1206 
1207 /** sets the history of a variable; this method is typacally used within reoptimization to keep and update the variable
1208  * history over several iteraions
1209  */
1210 void SCIPvarSetHistory(
1211  SCIP_VAR* var, /**< variable */
1212  SCIP_HISTORY* history, /**< the history which is to set */
1213  SCIP_STAT* stat /**< problem statistics */
1214  );
1215 
1216 /** updates the pseudo costs of the given variable and the global pseudo costs after a change of
1217  * "solvaldelta" in the variable's solution value and resulting change of "objdelta" in the in the LP's objective value
1218  */
1219 SCIP_RETCODE SCIPvarUpdatePseudocost(
1220  SCIP_VAR* var, /**< problem variable */
1221  SCIP_SET* set, /**< global SCIP settings */
1222  SCIP_STAT* stat, /**< problem statistics */
1223  SCIP_Real solvaldelta, /**< difference of variable's new LP value - old LP value */
1224  SCIP_Real objdelta, /**< difference of new LP's objective value - old LP's objective value */
1225  SCIP_Real weight /**< weight in (0,1] of this update in pseudo cost sum */
1226  );
1227 
1228 /** gets the variable's pseudo cost value for the given step size "solvaldelta" in the variable's LP solution value */
1229 SCIP_Real SCIPvarGetPseudocost(
1230  SCIP_VAR* var, /**< problem variable */
1231  SCIP_STAT* stat, /**< problem statistics */
1232  SCIP_Real solvaldelta /**< difference of variable's new LP value - old LP value */
1233  );
1234 
1235 /** gets the variable's pseudo cost value for the given step size "solvaldelta" in the variable's LP solution value,
1236  * only using the pseudo cost information of the current run
1237  */
1238 SCIP_Real SCIPvarGetPseudocostCurrentRun(
1239  SCIP_VAR* var, /**< problem variable */
1240  SCIP_STAT* stat, /**< problem statistics */
1241  SCIP_Real solvaldelta /**< difference of variable's new LP value - old LP value */
1242  );
1243 
1244 /** gets the variable's (possible fractional) number of pseudo cost updates for the given direction */
1245 SCIP_Real SCIPvarGetPseudocostCount(
1246  SCIP_VAR* var, /**< problem variable */
1247  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1248  );
1249 
1250 /** gets the variable's (possible fractional) number of pseudo cost updates for the given direction,
1251  * only using the pseudo cost information of the current run
1252  */
1253 SCIP_Real SCIPvarGetPseudocostCountCurrentRun(
1254  SCIP_VAR* var, /**< problem variable */
1255  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1256  );
1257 
1258 
1259 /** compares both possible directions for rounding the given solution value and returns the minimum pseudo-costs of the variable */
1260 SCIP_Real SCIPvarGetMinPseudocostScore(
1261  SCIP_VAR* var, /**< problem variable */
1262  SCIP_STAT* stat, /**< problem statistics */
1263  SCIP_SET* set, /**< global SCIP settings */
1264  SCIP_Real solval /**< solution value, e.g., LP solution value */
1265  );
1266 
1267 /** gets the an estimate of the variable's pseudo cost variance in direction \p dir */
1268 SCIP_Real SCIPvarGetPseudocostVariance(
1269  SCIP_VAR* var, /**< problem variable */
1270  SCIP_BRANCHDIR dir, /**< branching direction (downwards, or upwards) */
1271  SCIP_Bool onlycurrentrun /**< return pseudo cost variance only for current branch and bound run */
1272  );
1273 
1274 /** calculates a confidence bound for this variable under the assumption of normally distributed pseudo costs
1275  *
1276  * The confidence bound \f$ \theta \geq 0\f$ denotes the interval borders \f$ [X - \theta, \ X + \theta]\f$, which contains
1277  * the true pseudo costs of the variable, i.e., the expected value of the normal distribution, with a probability
1278  * of 95 %.
1279  *
1280  * @return value of confidence bound for this variable
1281  */
1282 SCIP_Real SCIPvarCalcPscostConfidenceBound(
1283  SCIP_VAR* var, /**< variable in question */
1284  SCIP_SET* set, /**< global SCIP settings */
1285  SCIP_BRANCHDIR dir, /**< the branching direction for the confidence bound */
1286  SCIP_Bool onlycurrentrun, /**< should only the current run be taken into account */
1287  SCIP_CONFIDENCELEVEL clevel /**< confidence level for the interval */
1288  );
1289 
1290 /** check if the current pseudo cost relative error in a direction violates the given threshold. The Relative
1291  * Error is calculated at a specific confidence level
1292  */
1293 SCIP_Bool SCIPvarIsPscostRelerrorReliable(
1294  SCIP_VAR* var, /**< variable in question */
1295  SCIP_SET* set, /**< global SCIP settings */
1296  SCIP_STAT* stat, /**< problem statistics */
1297  SCIP_Real threshold, /**< threshold for relative errors to be considered reliable (enough) */
1298  SCIP_CONFIDENCELEVEL clevel /**< a given confidence level */
1299  );
1300 
1301 /** check if variable pseudo-costs have a significant difference in location. The significance depends on
1302  * the choice of \p clevel and on the kind of tested hypothesis. The one-sided hypothesis, which
1303  * should be rejected, is that fracy * mu_y >= fracx * mu_x, where mu_y and mu_x denote the
1304  * unknown location means of the underlying pseudo-cost distributions of x and y.
1305  *
1306  * This method is applied best if variable x has a better pseudo-cost score than y. The method hypothesizes that y were actually
1307  * better than x (despite the current information), meaning that y can be expected to yield branching
1308  * decisions as least as good as x in the long run. If the method returns TRUE, the current history information is
1309  * sufficient to safely rely on the alternative hypothesis that x yields indeed a better branching score (on average)
1310  * than y.
1311  *
1312  * @note The order of x and y matters for the one-sided hypothesis
1313  *
1314  * @note set \p onesided to FALSE if you are not sure which variable is better. The hypothesis tested then reads
1315  * fracy * mu_y == fracx * mu_x vs the alternative hypothesis fracy * mu_y != fracx * mu_x.
1316  *
1317  * @return TRUE if the hypothesis can be safely rejected at the given confidence level
1318  */
1319 SCIP_Bool SCIPvarSignificantPscostDifference(
1320  SCIP_SET* set, /**< global SCIP settings */
1321  SCIP_STAT* stat, /**< problem statistics */
1322  SCIP_VAR* varx, /**< variable x */
1323  SCIP_Real fracx, /**< the fractionality of variable x */
1324  SCIP_VAR* vary, /**< variable y */
1325  SCIP_Real fracy, /**< the fractionality of variable y */
1326  SCIP_BRANCHDIR dir, /**< branching direction */
1327  SCIP_CONFIDENCELEVEL clevel, /**< confidence level for rejecting hypothesis */
1328  SCIP_Bool onesided /**< should a one-sided hypothesis y >= x be tested? */
1329  );
1330 
1331 /** tests at a given confidence level whether the variable pseudo-costs only have a small probability to
1332  * exceed a \p threshold. This is useful to determine if past observations provide enough evidence
1333  * to skip an expensive strong-branching step if there is already a candidate that has been proven to yield an improvement
1334  * of at least \p threshold.
1335  *
1336  * @note use \p clevel to adjust the level of confidence. For SCIP_CONFIDENCELEVEL_MIN, the method returns TRUE if
1337  * the estimated probability to exceed \p threshold is less than 25 %.
1338  *
1339  * @see SCIP_Confidencelevel for a list of available levels. The used probability limits refer to the one-sided levels
1340  * of confidence.
1341  *
1342  * @return TRUE if the variable pseudo-cost probabilistic model is likely to be smaller than \p threshold
1343  * at the given confidence level \p clevel.
1344  */
1345 SCIP_Bool SCIPvarPscostThresholdProbabilityTest(
1346  SCIP_SET* set, /**< global SCIP settings */
1347  SCIP_STAT* stat, /**< problem statistics */
1348  SCIP_VAR* var, /**< variable x */
1349  SCIP_Real frac, /**< the fractionality of variable x */
1350  SCIP_Real threshold, /**< the threshold to test against */
1351  SCIP_BRANCHDIR dir, /**< branching direction */
1352  SCIP_CONFIDENCELEVEL clevel /**< confidence level for rejecting hypothesis */
1353  );
1354 
1355 /** increases the VSIDS of the variable by the given weight */
1356 SCIP_RETCODE SCIPvarIncVSIDS(
1357  SCIP_VAR* var, /**< problem variable */
1358  BMS_BLKMEM* blkmem, /**< block memory, or NULL if the domain value is SCIP_UNKNOWN */
1359  SCIP_SET* set, /**< global SCIP settings, or NULL if the domain value is SCIP_UNKNOWN */
1360  SCIP_STAT* stat, /**< problem statistics */
1361  SCIP_BRANCHDIR dir, /**< branching direction */
1362  SCIP_Real value, /**< domain value, or SCIP_UNKNOWN */
1363  SCIP_Real weight /**< weight of this update in conflict score */
1364  );
1365 
1366 /** scales the VSIDS of the variable by the given scalar */
1367 SCIP_RETCODE SCIPvarScaleVSIDS(
1368  SCIP_VAR* var, /**< problem variable */
1369  SCIP_Real scalar /**< scalar to multiply the conflict scores with */
1370  );
1371 
1372 /** increases the number of active conflicts by one and the overall length of the variable by the given length */
1373 SCIP_RETCODE SCIPvarIncNActiveConflicts(
1374  SCIP_VAR* var, /**< problem variable */
1375  BMS_BLKMEM* blkmem, /**< block memory, or NULL if the domain value is SCIP_UNKNOWN */
1376  SCIP_SET* set, /**< global SCIP settings, or NULL if the domain value is SCIP_UNKNOWN */
1377  SCIP_STAT* stat, /**< problem statistics */
1378  SCIP_BRANCHDIR dir, /**< branching direction */
1379  SCIP_Real value, /**< domain value, or SCIP_UNKNOWN */
1380  SCIP_Real length /**< length of the conflict */
1381  );
1382 
1383 /** gets the number of active conflicts containing this variable in given direction */
1384 SCIP_Longint SCIPvarGetNActiveConflicts(
1385  SCIP_VAR* var, /**< problem variable */
1386  SCIP_STAT* stat, /**< problem statistics */
1387  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1388  );
1389 
1390 /** gets the number of active conflicts containing this variable in given direction
1391  * in the current run
1392  */
1393 SCIP_Longint SCIPvarGetNActiveConflictsCurrentRun(
1394  SCIP_VAR* var, /**< problem variable */
1395  SCIP_STAT* stat, /**< problem statistics */
1396  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1397  );
1398 
1399 /** gets the average conflict length in given direction due to branching on the variable */
1400 SCIP_Real SCIPvarGetAvgConflictlength(
1401  SCIP_VAR* var, /**< problem variable */
1402  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1403  );
1404 
1405 /** gets the average conflict length in given direction due to branching on the variable
1406  * in the current run
1407  */
1408 SCIP_Real SCIPvarGetAvgConflictlengthCurrentRun(
1409  SCIP_VAR* var, /**< problem variable */
1410  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1411  );
1412 
1413 /** increases the number of branchings counter of the variable */
1414 SCIP_RETCODE SCIPvarIncNBranchings(
1415  SCIP_VAR* var, /**< problem variable */
1416  BMS_BLKMEM* blkmem, /**< block memory, or NULL if the domain value is SCIP_UNKNOWN */
1417  SCIP_SET* set, /**< global SCIP settings, or NULL if the domain value is SCIP_UNKNOWN */
1418  SCIP_STAT* stat, /**< problem statistics */
1419  SCIP_BRANCHDIR dir, /**< branching direction (downwards, or upwards) */
1420  SCIP_Real value, /**< domain value, or SCIP_UNKNOWN */
1421  int depth /**< depth at which the bound change took place */
1422  );
1423 
1424 /** increases the inference score of the variable by the given weight */
1425 SCIP_RETCODE SCIPvarIncInferenceSum(
1426  SCIP_VAR* var, /**< problem variable */
1427  BMS_BLKMEM* blkmem, /**< block memory, or NULL if the domain value is SCIP_UNKNOWN */
1428  SCIP_SET* set, /**< global SCIP settings, or NULL if the domain value is SCIP_UNKNOWN */
1429  SCIP_STAT* stat, /**< problem statistics */
1430  SCIP_BRANCHDIR dir, /**< branching direction (downwards, or upwards) */
1431  SCIP_Real value, /**< domain value, or SCIP_UNKNOWN */
1432  SCIP_Real weight /**< weight of this update in inference score */
1433  );
1434 
1435 /** increases the cutoff score of the variable by the given weight */
1436 SCIP_RETCODE SCIPvarIncCutoffSum(
1437  SCIP_VAR* var, /**< problem variable */
1438  BMS_BLKMEM* blkmem, /**< block memory, or NULL if the domain value is SCIP_UNKNOWN */
1439  SCIP_SET* set, /**< global SCIP settings, or NULL if the domain value is SCIP_UNKNOWN */
1440  SCIP_STAT* stat, /**< problem statistics */
1441  SCIP_BRANCHDIR dir, /**< branching direction (downwards, or upwards) */
1442  SCIP_Real value, /**< domain value, or SCIP_UNKNOWN */
1443  SCIP_Real weight /**< weight of this update in cutoff score */
1444  );
1445 
1446 /** returns the variable's VSIDS score */
1447 SCIP_Real SCIPvarGetVSIDS_rec(
1448  SCIP_VAR* var, /**< problem variable */
1449  SCIP_STAT* stat, /**< problem statistics */
1450  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1451  );
1452 
1453 /** returns the variable's VSIDS score only using conflicts of the current run */
1454 SCIP_Real SCIPvarGetVSIDSCurrentRun(
1455  SCIP_VAR* var, /**< problem variable */
1456  SCIP_STAT* stat, /**< problem statistics */
1457  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1458  );
1459 
1460 /** returns the average number of inferences found after branching on the variable in given direction */
1461 SCIP_Real SCIPvarGetAvgInferences(
1462  SCIP_VAR* var, /**< problem variable */
1463  SCIP_STAT* stat, /**< problem statistics */
1464  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1465  );
1466 
1467 /** returns the average number of inferences found after branching on the variable in given direction
1468  * in the current run
1469  */
1470 SCIP_Real SCIPvarGetAvgInferencesCurrentRun(
1471  SCIP_VAR* var, /**< problem variable */
1472  SCIP_STAT* stat, /**< problem statistics */
1473  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1474  );
1475 
1476 /** returns the average number of cutoffs found after branching on the variable in given direction */
1477 SCIP_Real SCIPvarGetAvgCutoffs(
1478  SCIP_VAR* var, /**< problem variable */
1479  SCIP_STAT* stat, /**< problem statistics */
1480  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1481  );
1482 
1483 /** returns the average number of cutoffs found after branching on the variable in given direction in the current run */
1484 SCIP_Real SCIPvarGetAvgCutoffsCurrentRun(
1485  SCIP_VAR* var, /**< problem variable */
1486  SCIP_STAT* stat, /**< problem statistics */
1487  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1488  );
1489 
1490 /** outputs variable information into file stream */
1491 SCIP_RETCODE SCIPvarPrint(
1492  SCIP_VAR* var, /**< problem variable */
1493  SCIP_SET* set, /**< global SCIP settings */
1494  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
1495  FILE* file /**< output file (or NULL for standard output) */
1496  );
1497 
1498 /** includes event handler with given data in variable's event filter */
1499 SCIP_RETCODE SCIPvarCatchEvent(
1500  SCIP_VAR* var, /**< problem variable */
1501  BMS_BLKMEM* blkmem, /**< block memory */
1502  SCIP_SET* set, /**< global SCIP settings */
1503  SCIP_EVENTTYPE eventtype, /**< event type to catch */
1504  SCIP_EVENTHDLR* eventhdlr, /**< event handler to call for the event processing */
1505  SCIP_EVENTDATA* eventdata, /**< event data to pass to the event handler for the event processing */
1506  int* filterpos /**< pointer to store position of event filter entry, or NULL */
1507  );
1508 
1509 /** deletes event handler with given data from variable's event filter */
1510 SCIP_RETCODE SCIPvarDropEvent(
1511  SCIP_VAR* var, /**< problem variable */
1512  BMS_BLKMEM* blkmem, /**< block memory */
1513  SCIP_SET* set, /**< global SCIP settings */
1514  SCIP_EVENTTYPE eventtype, /**< event type mask of dropped event */
1515  SCIP_EVENTHDLR* eventhdlr, /**< event handler to call for the event processing */
1516  SCIP_EVENTDATA* eventdata, /**< event data to pass to the event handler for the event processing */
1517  int filterpos /**< position of event filter entry returned by SCIPvarCatchEvent(), or -1 */
1518  );
1519 
1520 /** returns the variable's VSIDS score */
1521 SCIP_Real SCIPvarGetVSIDS(
1522  SCIP_VAR* var, /**< problem variable */
1523  SCIP_STAT* stat, /**< problem statistics */
1524  SCIP_BRANCHDIR dir /**< branching direction (downwards, or upwards) */
1525  );
1526 
1527 /** returns the position of the bound change index */
1528 int SCIPbdchgidxGetPos(
1529  SCIP_BDCHGIDX* bdchgidx /**< bound change index */
1530  );
1531 
1532 /** removes (redundant) cliques, implications and variable bounds of variable from all other variables' implications and variable
1533  * bounds arrays, and optionally removes them also from the variable itself
1534  */
1535 SCIP_RETCODE SCIPvarRemoveCliquesImplicsVbs(
1536  SCIP_VAR* var, /**< problem variable */
1537  BMS_BLKMEM* blkmem, /**< block memory */
1538  SCIP_CLIQUETABLE* cliquetable, /**< clique table data structure */
1539  SCIP_SET* set, /**< global SCIP settings */
1540  SCIP_Bool irrelevantvar, /**< has the variable become irrelevant? */
1541  SCIP_Bool onlyredundant, /**< should only the redundant implications and variable bounds be removed? */
1542  SCIP_Bool removefromvar /**< should the implications and variable bounds be removed from the var itself? */
1543  );
1544 
1545 #ifdef NDEBUG
1546 
1547 /* In optimized mode, the function calls are overwritten by defines to reduce the number of function calls and
1548  * speed up the algorithms.
1549  */
1550 
1551 #define SCIPvarCatchEvent(var, blkmem, set, eventtype, eventhdlr, eventdata, filterpos) \
1552  SCIPeventfilterAdd(var->eventfilter, blkmem, set, eventtype, eventhdlr, eventdata, filterpos)
1553 #define SCIPvarDropEvent(var, blkmem, set, eventtype, eventhdlr, eventdata, filterpos) \
1554  SCIPeventfilterDel(var->eventfilter, blkmem, set, eventtype, eventhdlr, eventdata, filterpos)
1555 #define SCIPvarGetVSIDS(var, stat, dir) ((var)->varstatus == SCIP_VARSTATUS_LOOSE || (var)->varstatus == SCIP_VARSTATUS_COLUMN ? \
1556  SCIPhistoryGetVSIDS(var->history, dir)/stat->vsidsweight : SCIPvarGetVSIDS_rec(var, stat, dir))
1557 #define SCIPbdchgidxGetPos(bdchgidx) ((bdchgidx)->pos)
1558 
1559 #endif
1560 
1561 /*
1562  * Hash functions
1563  */
1564 
1565 /** gets the key (i.e. the name) of the given variable */
1566 SCIP_DECL_HASHGETKEY(SCIPhashGetKeyVar);
1567 
1568 #ifdef __cplusplus
1569 }
1570 #endif
1571 
1572 #endif
SCIPvarGetRelaxSolTransVar
SCIP_Real SCIPvarGetRelaxSolTransVar(SCIP_VAR *var)
Definition: var.c:13762
SCIPvarColumn
SCIP_RETCODE SCIPvarColumn(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_LP *lp)
Definition: var.c:3474
SCIP_BOUNDTYPE
enum SCIP_BoundType SCIP_BOUNDTYPE
Definition: type_lp.h:50
SCIPvarChgBdLocal
SCIP_RETCODE SCIPvarChgBdLocal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_Real newbound, SCIP_BOUNDTYPE boundtype)
Definition: var.c:8032
SCIPvarChgBdGlobal
SCIP_RETCODE SCIPvarChgBdGlobal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Real newbound, SCIP_BOUNDTYPE boundtype)
Definition: var.c:7327
event.h
internal methods for managing events
SCIP_BdChgIdx
Definition: struct_var.h:99
SCIPbdchgidxGetPos
int SCIPbdchgidxGetPos(SCIP_BDCHGIDX *bdchgidx)
Definition: var.c:18199
SCIPvarAddVlb
SCIP_RETCODE SCIPvarAddVlb(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_CLIQUETABLE *cliquetable, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_VAR *vlbvar, SCIP_Real vlbcoef, SCIP_Real vlbconstant, SCIP_Bool transitive, SCIP_Bool *infeasible, int *nbdchgs)
Definition: var.c:9810
SCIPvarGetPseudocostCurrentRun
SCIP_Real SCIPvarGetPseudocostCurrentRun(SCIP_VAR *var, SCIP_STAT *stat, SCIP_Real solvaldelta)
Definition: var.c:14291
pub_history.h
public methods for branching and inference history structure
SCIPdomchgApply
SCIP_RETCODE SCIPdomchgApply(SCIP_DOMCHG *domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, int depth, SCIP_Bool *cutoff)
Definition: var.c:1226
SCIPvarChgLbLocal
SCIP_RETCODE SCIPvarChgLbLocal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_Real newbound)
Definition: var.c:7779
SCIPvarCapture
void SCIPvarCapture(SCIP_VAR *var)
Definition: var.c:2774
type_misc.h
type definitions for miscellaneous datastructures
type_implics.h
type definitions for implications, variable bounds, and cliques
SCIPvarsGetActiveVars
SCIP_RETCODE SCIPvarsGetActiveVars(SCIP_SET *set, SCIP_VAR **vars, int *nvars, int varssize, int *requiredsize)
Definition: var.c:11777
SCIPvarPrint
SCIP_RETCODE SCIPvarPrint(SCIP_VAR *var, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, FILE *file)
Definition: var.c:2906
SCIPvarGetAvgCutoffs
SCIP_Real SCIPvarGetAvgCutoffs(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:16030
SCIP_DECL_VARTRANS
#define SCIP_DECL_VARTRANS(x)
Definition: type_var.h:138
SCIPvarSetHistory
void SCIPvarSetHistory(SCIP_VAR *var, SCIP_HISTORY *history, SCIP_STAT *stat)
Definition: var.c:4420
SCIPvarCreateOriginal
SCIP_RETCODE SCIPvarCreateOriginal(SCIP_VAR **var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, const char *name, SCIP_Real lb, SCIP_Real ub, SCIP_Real obj, SCIP_VARTYPE vartype, SCIP_Bool initial, SCIP_Bool removable, SCIP_DECL_VARDELORIG((*vardelorig)), SCIP_DECL_VARTRANS((*vartrans)), SCIP_DECL_VARDELTRANS((*vardeltrans)), SCIP_DECL_VARCOPY((*varcopy)), SCIP_VARDATA *vardata)
Definition: var.c:2003
SCIP_DomChg
Definition: struct_var.h:151
SCIPdomchgMakeStatic
SCIP_RETCODE SCIPdomchgMakeStatic(SCIP_DOMCHG **domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue, SCIP_LP *lp)
Definition: var.c:1088
SCIPvarInitSolve
void SCIPvarInitSolve(SCIP_VAR *var)
Definition: var.c:2831
SCIPvarTryAggregateVars
SCIP_RETCODE SCIPvarTryAggregateVars(SCIP_SET *set, BMS_BLKMEM *blkmem, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_PRIMAL *primal, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_CLIQUETABLE *cliquetable, SCIP_BRANCHCAND *branchcand, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_VAR *varx, SCIP_VAR *vary, SCIP_Real scalarx, SCIP_Real scalary, SCIP_Real rhs, SCIP_Bool *infeasible, SCIP_Bool *aggregated)
Definition: var.c:5160
SCIPvarChgBranchDirection
SCIP_RETCODE SCIPvarChgBranchDirection(SCIP_VAR *var, SCIP_BRANCHDIR branchdirection)
Definition: var.c:11590
SCIPvarGetVSIDSCurrentRun
SCIP_Real SCIPvarGetVSIDSCurrentRun(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:15693
SCIP_DECL_HASHGETKEY
SCIP_DECL_HASHGETKEY(SCIPhashGetKeyVar)
Definition: var.c:16775
SCIPvarChgObj
SCIP_RETCODE SCIPvarChgObj(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_PROB *prob, SCIP_PRIMAL *primal, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_Real newobj)
Definition: var.c:6074
SCIPbdchginfoFree
void SCIPbdchginfoFree(SCIP_BDCHGINFO **bdchginfo, BMS_BLKMEM *blkmem)
Definition: var.c:16161
bound
static long bound
Definition: GomoryHuTree.cpp:38
SCIPvarRelease
SCIP_RETCODE SCIPvarRelease(SCIP_VAR **var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue, SCIP_LP *lp)
Definition: var.c:2786
SCIPvarGetNActiveConflictsCurrentRun
SCIP_Longint SCIPvarGetNActiveConflictsCurrentRun(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:15080
SCIPvarGetRelaxSol
SCIP_Real SCIPvarGetRelaxSol(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:13690
SCIP_Var
Definition: struct_var.h:198
SCIP_BoundChg
Definition: struct_var.h:82
SCIPvarAddObj
SCIP_RETCODE SCIPvarAddObj(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_PRIMAL *primal, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_Real addobj)
Definition: var.c:6149
SCIPvarIncVSIDS
SCIP_RETCODE SCIPvarIncVSIDS(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_BRANCHDIR dir, SCIP_Real value, SCIP_Real weight)
Definition: var.c:14816
SCIPvarResetBounds
SCIP_RETCODE SCIPvarResetBounds(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat)
Definition: var.c:9040
SCIPvarAddHoleLocal
SCIP_RETCODE SCIPvarAddHoleLocal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTQUEUE *eventqueue, SCIP_Real left, SCIP_Real right, SCIP_Bool *added)
Definition: var.c:8931
SCIPboundchgApply
SCIP_RETCODE SCIPboundchgApply(SCIP_BOUNDCHG *boundchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, int depth, int pos, SCIP_Bool *cutoff)
Definition: var.c:555
SCIP_Primal
Definition: struct_primal.h:37
SCIPvarIsMarkedDeleteGlobalStructures
SCIP_Bool SCIPvarIsMarkedDeleteGlobalStructures(SCIP_VAR *var)
Definition: var.c:17284
SCIP_VARDATA
struct SCIP_VarData SCIP_VARDATA
Definition: type_var.h:107
SCIP_EventFilter
Definition: struct_event.h:179
SCIP_Messagehdlr
Definition: struct_message.h:36
SCIP_RETCODE
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:54
SCIPvarCopy
SCIP_RETCODE SCIPvarCopy(SCIP_VAR **var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP *sourcescip, SCIP_VAR *sourcevar, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global)
Definition: var.c:2088
type_set.h
type definitions for global SCIP settings
SCIP_DECL_VARCOPY
#define SCIP_DECL_VARCOPY(x)
Definition: type_var.h:181
SCIPvarGetMultaggrUbGlobal
SCIP_Real SCIPvarGetMultaggrUbGlobal(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:8441
SCIP_Prob
Definition: struct_prob.h:39
SCIPvarAggregate
SCIP_RETCODE SCIPvarAggregate(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_PRIMAL *primal, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_CLIQUETABLE *cliquetable, SCIP_BRANCHCAND *branchcand, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_VAR *aggvar, SCIP_Real scalar, SCIP_Real constant, SCIP_Bool *infeasible, SCIP_Bool *aggregated)
Definition: var.c:4626
SCIPvarPscostThresholdProbabilityTest
SCIP_Bool SCIPvarPscostThresholdProbabilityTest(SCIP_SET *set, SCIP_STAT *stat, SCIP_VAR *var, SCIP_Real frac, SCIP_Real threshold, SCIP_BRANCHDIR dir, SCIP_CONFIDENCELEVEL clevel)
Definition: var.c:14692
SCIPvarGetImplRedcost
SCIP_Real SCIPvarGetImplRedcost(SCIP_VAR *var, SCIP_SET *set, SCIP_Bool varfixing, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_LP *lp)
Definition: var.c:13236
SCIPvarSignificantPscostDifference
SCIP_Bool SCIPvarSignificantPscostDifference(SCIP_SET *set, SCIP_STAT *stat, SCIP_VAR *varx, SCIP_Real fracx, SCIP_VAR *vary, SCIP_Real fracy, SCIP_BRANCHDIR dir, SCIP_CONFIDENCELEVEL clevel, SCIP_Bool onesided)
Definition: var.c:14626
type_retcode.h
type definitions for return codes for SCIP methods
SCIPvarGetMultaggrLbGlobal
SCIP_Real SCIPvarGetMultaggrLbGlobal(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:8375
SCIPvarCreateTransformed
SCIP_RETCODE SCIPvarCreateTransformed(SCIP_VAR **var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, const char *name, SCIP_Real lb, SCIP_Real ub, SCIP_Real obj, SCIP_VARTYPE vartype, SCIP_Bool initial, SCIP_Bool removable, SCIP_DECL_VARDELORIG((*vardelorig)), SCIP_DECL_VARTRANS((*vartrans)), SCIP_DECL_VARDELTRANS((*vardeltrans)), SCIP_DECL_VARCOPY((*varcopy)), SCIP_VARDATA *vardata)
Definition: var.c:2046
SCIPvarChgUbOriginal
SCIP_RETCODE SCIPvarChgUbOriginal(SCIP_VAR *var, SCIP_SET *set, SCIP_Real newbound)
Definition: var.c:6435
SCIPvarGetTransformed
SCIP_RETCODE SCIPvarGetTransformed(SCIP_VAR *origvar, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_VAR **transvar)
Definition: var.c:3443
type_reopt.h
type definitions for collecting reoptimization information
SCIPvarDelCliqueFromList
SCIP_RETCODE SCIPvarDelCliqueFromList(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_Bool value, SCIP_CLIQUE *clique)
Definition: var.c:11189
SCIPvarAdjustUb
void SCIPvarAdjustUb(SCIP_VAR *var, SCIP_SET *set, SCIP_Real *ub)
Definition: var.c:6343
type_branch.h
type definitions for branching rules
type_stat.h
type definitions for problem statistics
SCIPvarAddVub
SCIP_RETCODE SCIPvarAddVub(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_CLIQUETABLE *cliquetable, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_VAR *vubvar, SCIP_Real vubcoef, SCIP_Real vubconstant, SCIP_Bool transitive, SCIP_Bool *infeasible, int *nbdchgs)
Definition: var.c:10274
SCIPvarSetNLPSol
SCIP_RETCODE SCIPvarSetNLPSol(SCIP_VAR *var, SCIP_SET *set, SCIP_Real solval)
Definition: var.c:13773
SCIPvarRemove
SCIP_RETCODE SCIPvarRemove(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_CLIQUETABLE *cliquetable, SCIP_SET *set, SCIP_Bool final)
Definition: var.c:5905
SCIP_DECL_VARDELTRANS
#define SCIP_DECL_VARDELTRANS(x)
Definition: type_var.h:151
type_lp.h
type definitions for LP management
SCIP_Sol
Definition: struct_sol.h:64
SCIP_Set
Definition: struct_set.h:61
SCIPvarIncInferenceSum
SCIP_RETCODE SCIPvarIncInferenceSum(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_BRANCHDIR dir, SCIP_Real value, SCIP_Real weight)
Definition: var.c:15296
SCIP_BRANCHDIR
enum SCIP_BranchDir SCIP_BRANCHDIR
Definition: type_history.h:39
SCIPbdchginfoGetRelaxedBound
SCIP_Real SCIPbdchginfoGetRelaxedBound(SCIP_BDCHGINFO *bdchginfo)
Definition: var.c:18388
SCIPvarMarkDeleted
void SCIPvarMarkDeleted(SCIP_VAR *var)
Definition: var.c:5941
SCIPdomchgAddBoundchg
SCIP_RETCODE SCIPdomchgAddBoundchg(SCIP_DOMCHG **domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_VAR *var, SCIP_Real newbound, SCIP_BOUNDTYPE boundtype, SCIP_BOUNDCHGTYPE boundchgtype, SCIP_Real lpsolval, SCIP_VAR *infervar, SCIP_CONS *infercons, SCIP_PROP *inferprop, int inferinfo, SCIP_BOUNDTYPE inferboundtype)
Definition: var.c:1349
SCIP_HashMap
Definition: struct_misc.h:128
SCIPvarDoNotMultaggr
SCIP_Bool SCIPvarDoNotMultaggr(SCIP_VAR *var)
Definition: var.c:5729
SCIPvarFlattenAggregationGraph
SCIP_RETCODE SCIPvarFlattenAggregationGraph(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue)
Definition: var.c:4309
SCIPvarGetAvgInferences
SCIP_Real SCIPvarGetAvgInferences(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:15832
SCIPvarCalcPscostConfidenceBound
SCIP_Real SCIPvarCalcPscostConfidenceBound(SCIP_VAR *var, SCIP_SET *set, SCIP_BRANCHDIR dir, SCIP_Bool onlycurrentrun, SCIP_CONFIDENCELEVEL clevel)
Definition: var.c:14511
SCIP_CONFIDENCELEVEL
enum SCIP_Confidencelevel SCIP_CONFIDENCELEVEL
Definition: type_misc.h:44
SCIPvarIsPscostRelerrorReliable
SCIP_Bool SCIPvarIsPscostRelerrorReliable(SCIP_VAR *var, SCIP_SET *set, SCIP_STAT *stat, SCIP_Real threshold, SCIP_CONFIDENCELEVEL clevel)
Definition: var.c:14549
SCIPvarIncNActiveConflicts
SCIP_RETCODE SCIPvarIncNActiveConflicts(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_BRANCHDIR dir, SCIP_Real value, SCIP_Real length)
Definition: var.c:14952
SCIPvarGetPseudocostVariance
SCIP_Real SCIPvarGetPseudocostVariance(SCIP_VAR *var, SCIP_BRANCHDIR dir, SCIP_Bool onlycurrentrun)
Definition: var.c:14457
SCIPvarGetClosestVlb
void SCIPvarGetClosestVlb(SCIP_VAR *var, SCIP_SOL *sol, SCIP_SET *set, SCIP_STAT *stat, SCIP_Real *closestvlb, int *closestvlbidx)
Definition: var.c:13889
SCIPvarFix
SCIP_RETCODE SCIPvarFix(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_PRIMAL *primal, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Real fixedval, SCIP_Bool *infeasible, SCIP_Bool *fixed)
Definition: var.c:3644
SCIPvarChgUbLazy
SCIP_RETCODE SCIPvarChgUbLazy(SCIP_VAR *var, SCIP_SET *set, SCIP_Real lazylb)
Definition: var.c:7301
SCIPvarGetPseudocostCountCurrentRun
SCIP_Real SCIPvarGetPseudocostCountCurrentRun(SCIP_VAR *var, SCIP_BRANCHDIR dir)
Definition: var.c:14383
SCIP_LOCKTYPE
enum SCIP_LockType SCIP_LOCKTYPE
Definition: type_var.h:87
SCIP_Cons
Definition: struct_cons.h:37
SCIPvarAddCliqueToList
SCIP_RETCODE SCIPvarAddCliqueToList(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_Bool value, SCIP_CLIQUE *clique)
Definition: var.c:11167
SCIPvarParseOriginal
SCIP_RETCODE SCIPvarParseOriginal(SCIP_VAR **var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, const char *str, SCIP_Bool initial, SCIP_Bool removable, SCIP_DECL_VARCOPY((*varcopy)), SCIP_DECL_VARDELORIG((*vardelorig)), SCIP_DECL_VARTRANS((*vartrans)), SCIP_DECL_VARDELTRANS((*vardeltrans)), SCIP_VARDATA *vardata, char **endptr, SCIP_Bool *success)
Definition: var.c:2423
type_scip.h
type definitions for SCIP&#39;s main datastructure
SCIPvarGetProbvarSum
SCIP_RETCODE SCIPvarGetProbvarSum(SCIP_VAR **var, SCIP_SET *set, SCIP_Real *scalar, SCIP_Real *constant)
Definition: var.c:12418
SCIPvarCatchEvent
SCIP_RETCODE SCIPvarCatchEvent(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int *filterpos)
Definition: var.c:18147
SCIPvarChgType
SCIP_RETCODE SCIPvarChgType(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_PRIMAL *primal, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_VARTYPE vartype)
Definition: var.c:5987
SCIPvarSetNamePointer
void SCIPvarSetNamePointer(SCIP_VAR *var, const char *name)
Definition: var.c:5887
SCIPvarUpdatePseudocost
SCIP_RETCODE SCIPvarUpdatePseudocost(SCIP_VAR *var, SCIP_SET *set, SCIP_STAT *stat, SCIP_Real solvaldelta, SCIP_Real objdelta, SCIP_Real weight)
Definition: var.c:14144
SCIP_EVENTDATA
struct SCIP_EventData SCIP_EVENTDATA
Definition: type_event.h:164
SCIPvarGetLbLP
SCIP_Real SCIPvarGetLbLP(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:12703
SCIPvarMultiaggregate
SCIP_RETCODE SCIPvarMultiaggregate(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_PRIMAL *primal, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_CLIQUETABLE *cliquetable, SCIP_BRANCHCAND *branchcand, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, int naggvars, SCIP_VAR **aggvars, SCIP_Real *scalars, SCIP_Real constant, SCIP_Bool *infeasible, SCIP_Bool *aggregated)
Definition: var.c:5326
SCIPvarDropEvent
SCIP_RETCODE SCIPvarDropEvent(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int filterpos)
Definition: var.c:18174
SCIP_History
Definition: struct_history.h:36
SCIPbdchginfoCreate
SCIP_RETCODE SCIPbdchginfoCreate(SCIP_BDCHGINFO **bdchginfo, BMS_BLKMEM *blkmem, SCIP_VAR *var, SCIP_BOUNDTYPE boundtype, SCIP_Real oldbound, SCIP_Real newbound)
Definition: var.c:16131
SCIPvarGetVSIDS_rec
SCIP_Real SCIPvarGetVSIDS_rec(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:15642
SCIPvarChgLbDive
SCIP_RETCODE SCIPvarChgLbDive(SCIP_VAR *var, SCIP_SET *set, SCIP_LP *lp, SCIP_Real newbound)
Definition: var.c:8058
SCIPvarChgBranchPriority
SCIP_RETCODE SCIPvarChgBranchPriority(SCIP_VAR *var, int branchpriority)
Definition: var.c:11460
SCIPvarGetAvgConflictlength
SCIP_Real SCIPvarGetAvgConflictlength(SCIP_VAR *var, SCIP_BRANCHDIR dir)
Definition: var.c:15125
type_var.h
type definitions for problem variables
type_relax.h
type definitions for relaxators
SCIPvarGetAvgInferencesCurrentRun
SCIP_Real SCIPvarGetAvgInferencesCurrentRun(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:15889
SCIPvarGetObjLP
SCIP_Real SCIPvarGetObjLP(SCIP_VAR *var)
Definition: var.c:12657
type_event.h
type definitions for managing events
SCIP_Prop
Definition: struct_prop.h:37
SCIPvarChgLbGlobal
SCIP_RETCODE SCIPvarChgLbGlobal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Real newbound)
Definition: var.c:6994
SCIPvarGetMultaggrUbLocal
SCIP_Real SCIPvarGetMultaggrUbLocal(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:8309
SCIPvarGetPseudocost
SCIP_Real SCIPvarGetPseudocost(SCIP_VAR *var, SCIP_STAT *stat, SCIP_Real solvaldelta)
Definition: var.c:14242
SCIPdomchgAddHolechg
SCIP_RETCODE SCIPdomchgAddHolechg(SCIP_DOMCHG **domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_HOLELIST **ptr, SCIP_HOLELIST *newlist, SCIP_HOLELIST *oldlist)
Definition: var.c:1446
SCIPvarAdjustLb
void SCIPvarAdjustLb(SCIP_VAR *var, SCIP_SET *set, SCIP_Real *lb)
Definition: var.c:6326
SCIP_BdChgInfo
Definition: struct_var.h:106
SCIPvarAddLocks
SCIP_RETCODE SCIPvarAddLocks(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue, SCIP_LOCKTYPE locktype, int addnlocksdown, int addnlocksup)
Definition: var.c:3067
SCIP_Bool
#define SCIP_Bool
Definition: def.h:70
SCIP_Holelist
Definition: struct_var.h:49
SCIPvarGetAvgConflictlengthCurrentRun
SCIP_Real SCIPvarGetAvgConflictlengthCurrentRun(SCIP_VAR *var, SCIP_BRANCHDIR dir)
Definition: var.c:15169
SCIPdomchgUndo
SCIP_RETCODE SCIPdomchgUndo(SCIP_DOMCHG *domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue)
Definition: var.c:1275
SCIP_OBJSENSE
enum SCIP_Objsense SCIP_OBJSENSE
Definition: type_prob.h:41
SCIPvarGetClosestVub
void SCIPvarGetClosestVub(SCIP_VAR *var, SCIP_SOL *sol, SCIP_SET *set, SCIP_STAT *stat, SCIP_Real *closestvub, int *closestvubidx)
Definition: var.c:13964
SCIPvarChgObjDive
SCIP_RETCODE SCIPvarChgObjDive(SCIP_VAR *var, SCIP_SET *set, SCIP_LP *lp, SCIP_Real newobj)
Definition: var.c:6263
SCIP_Row
Definition: struct_lp.h:192
SCIPvarGetNActiveConflicts
SCIP_Longint SCIPvarGetNActiveConflicts(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:15033
SCIPvarsAddClique
SCIP_RETCODE SCIPvarsAddClique(SCIP_VAR **vars, SCIP_Bool *values, int nvars, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_CLIQUE *clique)
Definition: var.c:11129
SCIPvarGetAvgCutoffsCurrentRun
SCIP_Real SCIPvarGetAvgCutoffsCurrentRun(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:16077
SCIP_Reopt
Definition: struct_reopt.h:130
type_tree.h
type definitions for branch and bound tree
SCIPvarNegate
SCIP_RETCODE SCIPvarNegate(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_VAR **negvar)
Definition: var.c:5764
SCIPvarChgName
SCIP_RETCODE SCIPvarChgName(SCIP_VAR *var, BMS_BLKMEM *blkmem, const char *name)
Definition: var.c:2813
type_sol.h
type definitions for storing primal CIP solutions
type_prob.h
type definitions for storing and manipulating the main problem
SCIPvarGetMultaggrLbLocal
SCIP_Real SCIPvarGetMultaggrLbLocal(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:8243
SCIPvarRemoveCliquesImplicsVbs
SCIP_RETCODE SCIPvarRemoveCliquesImplicsVbs(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_CLIQUETABLE *cliquetable, SCIP_SET *set, SCIP_Bool irrelevantvar, SCIP_Bool onlyredundant, SCIP_Bool removefromvar)
Definition: var.c:1536
SCIPvarAddHoleOriginal
SCIP_RETCODE SCIPvarAddHoleOriginal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_Real left, SCIP_Real right)
Definition: var.c:8502
SCIPvarParseTransformed
SCIP_RETCODE SCIPvarParseTransformed(SCIP_VAR **var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, const char *str, SCIP_Bool initial, SCIP_Bool removable, SCIP_DECL_VARCOPY((*varcopy)), SCIP_DECL_VARDELORIG((*vardelorig)), SCIP_DECL_VARTRANS((*vartrans)), SCIP_DECL_VARDELTRANS((*vardeltrans)), SCIP_VARDATA *vardata, char **endptr, SCIP_Bool *success)
Definition: var.c:2487
SCIPvarMergeHistories
void SCIPvarMergeHistories(SCIP_VAR *targetvar, SCIP_VAR *othervar, SCIP_STAT *stat)
Definition: var.c:4404
SCIPvarAddClique
SCIP_RETCODE SCIPvarAddClique(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Bool value, SCIP_CLIQUE *clique, SCIP_Bool *infeasible, int *nbdchgs)
Definition: var.c:11044
SCIP_DECL_VARDELORIG
#define SCIP_DECL_VARDELORIG(x)
Definition: type_var.h:118
type_prop.h
type definitions for propagators
SCIPvarStoreRootSol
void SCIPvarStoreRootSol(SCIP_VAR *var, SCIP_Bool roothaslp)
Definition: var.c:13038
SCIPvarIncNBranchings
SCIP_RETCODE SCIPvarIncNBranchings(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_BRANCHDIR dir, SCIP_Real value, int depth)
Definition: var.c:15212
SCIPvarMarkDoNotMultaggr
SCIP_RETCODE SCIPvarMarkDoNotMultaggr(SCIP_VAR *var)
Definition: var.c:5952
SCIPvarGetPseudocostCount
SCIP_Real SCIPvarGetPseudocostCount(SCIP_VAR *var, SCIP_BRANCHDIR dir)
Definition: var.c:14338
scalars
static const SCIP_Real scalars[]
Definition: lp.c:5731
SCIPvarChgUbLocal
SCIP_RETCODE SCIPvarChgUbLocal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_Real newbound)
Definition: var.c:7906
SCIP_Lp
Definition: struct_lp.h:259
SCIP_Visual::messagehdlr
SCIP_MESSAGEHDLR * messagehdlr
Definition: struct_visual.h:44
SCIPvarGetUbLP
SCIP_Real SCIPvarGetUbLP(SCIP_VAR *var, SCIP_SET *set)
Definition: var.c:12773
SCIP_CliqueTable
Definition: struct_implics.h:88
struct_var.h
datastructures for problem variables
SCIP_Real
#define SCIP_Real
Definition: def.h:163
type_result.h
result codes for SCIP callback methods
SCIPvarChgLbLazy
SCIP_RETCODE SCIPvarChgLbLazy(SCIP_VAR *var, SCIP_SET *set, SCIP_Real lazylb)
Definition: var.c:7278
type_history.h
type definitions for branching and inference history
SCIP_Clique
Definition: struct_implics.h:66
SCIPdomchgFree
SCIP_RETCODE SCIPdomchgFree(SCIP_DOMCHG **domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue, SCIP_LP *lp)
Definition: var.c:987
SCIPvarChgLbOriginal
SCIP_RETCODE SCIPvarChgLbOriginal(SCIP_VAR *var, SCIP_SET *set, SCIP_Real newbound)
Definition: var.c:6376
SCIPvarTransform
SCIP_RETCODE SCIPvarTransform(SCIP_VAR *origvar, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_OBJSENSE objsense, SCIP_VAR **transvar)
Definition: var.c:3357
SCIPvarAddHoleGlobal
SCIP_RETCODE SCIPvarAddHoleGlobal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTQUEUE *eventqueue, SCIP_Real left, SCIP_Real right, SCIP_Bool *added)
Definition: var.c:8683
SCIP_Longint
#define SCIP_Longint
Definition: def.h:148
SCIPvarLoose
SCIP_RETCODE SCIPvarLoose(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *prob, SCIP_LP *lp)
Definition: var.c:3508
SCIPvarScaleVSIDS
SCIP_RETCODE SCIPvarScaleVSIDS(SCIP_VAR *var, SCIP_Real scalar)
Definition: var.c:14902
SCIPvarAddImplic
SCIP_RETCODE SCIPvarAddImplic(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_CLIQUETABLE *cliquetable, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_Bool varfixing, SCIP_VAR *implvar, SCIP_BOUNDTYPE impltype, SCIP_Real implbound, SCIP_Bool transitive, SCIP_Bool *infeasible, int *nbdchgs)
Definition: var.c:10721
SCIPvarUpdateBestRootSol
void SCIPvarUpdateBestRootSol(SCIP_VAR *var, SCIP_SET *set, SCIP_Real rootsol, SCIP_Real rootredcost, SCIP_Real rootlpobjval)
Definition: var.c:13049
SCIPvarSetProbindex
void SCIPvarSetProbindex(SCIP_VAR *var, int probindex)
Definition: var.c:5872
SCIPvarGetConflictingBdchgDepth
int SCIPvarGetConflictingBdchgDepth(SCIP_VAR *var, SCIP_SET *set, SCIP_BOUNDTYPE boundtype, SCIP_Real bound)
Definition: var.c:16643
SCIP_Relaxation
Definition: struct_relax.h:65
type_message.h
type definitions for message output methods
SCIP_VARTYPE
enum SCIP_Vartype SCIP_VARTYPE
Definition: type_var.h:60
SCIPvarIncCutoffSum
SCIP_RETCODE SCIPvarIncCutoffSum(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_BRANCHDIR dir, SCIP_Real value, SCIP_Real weight)
Definition: var.c:15380
SCIP_Stat
Definition: struct_stat.h:50
SCIPvarGetMinPseudocostScore
SCIP_Real SCIPvarGetMinPseudocostScore(SCIP_VAR *var, SCIP_STAT *stat, SCIP_SET *set, SCIP_Real solval)
Definition: var.c:14426
SCIP_Tree
Definition: struct_tree.h:175
SCIPvarDelClique
SCIP_RETCODE SCIPvarDelClique(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_CLIQUETABLE *cliquetable, SCIP_Bool value, SCIP_CLIQUE *clique)
Definition: var.c:11206
type_primal.h
type definitions for collecting primal CIP solutions and primal informations
SCIPvarSetRelaxSol
SCIP_RETCODE SCIPvarSetRelaxSol(SCIP_VAR *var, SCIP_SET *set, SCIP_RELAXATION *relaxation, SCIP_Real solval, SCIP_Bool updateobj)
Definition: var.c:13629
SCIPvarAddToRow
SCIP_RETCODE SCIPvarAddToRow(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *prob, SCIP_LP *lp, SCIP_ROW *row, SCIP_Real val)
Definition: var.c:14036
def.h
common defines and data types used in all packages of SCIP
SCIP_EventQueue
Definition: struct_event.h:214
SCIPvarGetActiveRepresentatives
SCIP_RETCODE SCIPvarGetActiveRepresentatives(SCIP_SET *set, SCIP_VAR **vars, SCIP_Real *scalars, int *nvars, int varssize, SCIP_Real *constant, int *requiredsize, SCIP_Bool mergemultiples)
Definition: var.c:3814
BMS_BLKMEM
struct BMS_BlkMem BMS_BLKMEM
Definition: memory.h:429
SCIPboundchgUndo
SCIP_RETCODE SCIPboundchgUndo(SCIP_BOUNDCHG *boundchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue)
Definition: var.c:752
SCIP_BOUNDCHGTYPE
enum SCIP_BoundchgType SCIP_BOUNDCHGTYPE
Definition: type_var.h:78
SCIPvarAdjustBd
void SCIPvarAdjustBd(SCIP_VAR *var, SCIP_SET *set, SCIP_BOUNDTYPE boundtype, SCIP_Real *bd)
Definition: var.c:6360
SCIP_BranchCand
Definition: struct_branch.h:37
SCIPdomchgApplyGlobal
SCIP_RETCODE SCIPdomchgApplyGlobal(SCIP_DOMCHG *domchg, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Bool *cutoff)
Definition: var.c:1310
SCIPvarChgUbGlobal
SCIP_RETCODE SCIPvarChgUbGlobal(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Real newbound)
Definition: var.c:7137
SCIPvarGetVSIDS
SCIP_Real SCIPvarGetVSIDS(SCIP_VAR *var, SCIP_STAT *stat, SCIP_BRANCHDIR dir)
Definition: var.c:18132
SCIP_Eventhdlr
Definition: struct_event.h:195
type_cons.h
type definitions for constraints and constraint handlers
SCIPvarFixBinary
SCIP_RETCODE SCIPvarFixBinary(SCIP_VAR *var, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_BRANCHCAND *branchcand, SCIP_EVENTQUEUE *eventqueue, SCIP_CLIQUETABLE *cliquetable, SCIP_Bool value, SCIP_Bool *infeasible, int *nbdchgs)
Definition: var.c:10953
SCIPvarChgBranchFactor
SCIP_RETCODE SCIPvarChgBranchFactor(SCIP_VAR *var, SCIP_SET *set, SCIP_Real branchfactor)
Definition: var.c:11334
SCIP_EVENTTYPE
uint64_t SCIP_EVENTTYPE
Definition: type_event.h:142
SCIPvarChgUbDive
SCIP_RETCODE SCIPvarChgUbDive(SCIP_VAR *var, SCIP_SET *set, SCIP_LP *lp, SCIP_Real newbound)
Definition: var.c:8148
memory.h
memory allocation routines