85#define CONSHDLR_NAME "and"
86#define CONSHDLR_DESC "constraint handler for AND-constraints: r = and(x1, ..., xn)"
87#define CONSHDLR_SEPAPRIORITY +850100
88#define CONSHDLR_ENFOPRIORITY -850100
89#define CONSHDLR_CHECKPRIORITY -850100
90#define CONSHDLR_SEPAFREQ 1
91#define CONSHDLR_PROPFREQ 1
92#define CONSHDLR_EAGERFREQ 100
94#define CONSHDLR_MAXPREROUNDS -1
95#define CONSHDLR_DELAYSEPA FALSE
96#define CONSHDLR_DELAYPROP FALSE
97#define CONSHDLR_NEEDSCONS TRUE
99#define CONSHDLR_PRESOLTIMING (SCIP_PRESOLTIMING_FAST | SCIP_PRESOLTIMING_EXHAUSTIVE)
100#define CONSHDLR_PROP_TIMING SCIP_PROPTIMING_BEFORELP
102#define EVENTHDLR_NAME "and"
103#define EVENTHDLR_DESC "bound change event handler for AND-constraints"
105#define DEFAULT_PRESOLPAIRWISE TRUE
106#define DEFAULT_LINEARIZE FALSE
107#define DEFAULT_ENFORCECUTS TRUE
108#define DEFAULT_AGGRLINEARIZATION FALSE
109#define DEFAULT_UPGRRESULTANT TRUE
110#define DEFAULT_DUALPRESOLVING TRUE
112#define HASHSIZE_ANDCONS 500
113#define DEFAULT_PRESOLUSEHASHING TRUE
114#define NMINCOMPARISONS 200000
115#define MINGAINPERNMINCOMPARISONS 1e-06
138 unsigned int propagated:1;
139 unsigned int nofixedzero:1;
140 unsigned int impladded:1;
141 unsigned int opimpladded:1;
142 unsigned int sorted:1;
143 unsigned int changed:1;
144 unsigned int merged:1;
145 unsigned int checkwhenupgr:1;
148 unsigned int notremovablewhenupgr:1;
154struct SCIP_ConshdlrData
157 SCIP_Bool presolpairwise;
158 SCIP_Bool presolusehashing;
160 SCIP_Bool enforcecuts;
161 SCIP_Bool aggrlinearization;
162 SCIP_Bool upgrresultant;
163 SCIP_Bool dualpresolving;
229 (*conshdlrdata)->eventhdlr = eventhdlr;
311 for(
i = 0;
i < consdata->nvars; ++
i )
337 for(
i = 0;
i < consdata->nvars; ++
i )
357 assert(watchedvar1 == -1 || watchedvar1 != watchedvar2);
358 assert(watchedvar1 != -1 || watchedvar2 == -1);
363 if( watchedvar1 == consdata->watchedvar2 || watchedvar2 == consdata->watchedvar1 )
367 tmp = consdata->watchedvar1;
368 consdata->watchedvar1 = consdata->watchedvar2;
369 consdata->watchedvar2 =
tmp;
370 tmp = consdata->filterpos1;
371 consdata->filterpos1 = consdata->filterpos2;
372 consdata->filterpos2 =
tmp;
374 assert(watchedvar1 == -1 || watchedvar1 != consdata->watchedvar2);
375 assert(watchedvar2 == -1 || watchedvar2 != consdata->watchedvar1);
378 if( consdata->watchedvar1 != -1 && consdata->watchedvar1 != watchedvar1 )
380 assert(consdata->filterpos1 != -1);
383 if( consdata->watchedvar2 != -1 && consdata->watchedvar2 != watchedvar2 )
385 assert(consdata->filterpos2 != -1);
390 if( watchedvar1 != -1 && watchedvar1 != consdata->watchedvar1 )
394 if( watchedvar2 != -1 && watchedvar2 != consdata->watchedvar2 )
400 consdata->watchedvar1 = watchedvar1;
401 consdata->watchedvar2 = watchedvar2;
415 assert(consdata->nvars <= consdata->varssize);
417 if( num > consdata->varssize )
439 SCIP_Bool checkwhenupgr,
442 SCIP_Bool notremovablewhenupgr
455 (*consdata)->resvar = resvar;
456 (*consdata)->rows =
NULL;
457 (*consdata)->aggrrow =
NULL;
458 (*consdata)->nlrow =
NULL;
459 (*consdata)->nvars =
nvars;
460 (*consdata)->varssize =
nvars;
461 (*consdata)->nrows = 0;
462 (*consdata)->watchedvar1 = -1;
463 (*consdata)->watchedvar2 = -1;
464 (*consdata)->filterpos1 = -1;
465 (*consdata)->filterpos2 = -1;
466 (*consdata)->propagated =
FALSE;
467 (*consdata)->nofixedzero =
FALSE;
468 (*consdata)->impladded =
FALSE;
469 (*consdata)->opimpladded =
FALSE;
470 (*consdata)->sorted =
FALSE;
471 (*consdata)->changed =
TRUE;
472 (*consdata)->merged =
FALSE;
473 (*consdata)->checkwhenupgr = checkwhenupgr;
474 (*consdata)->notremovablewhenupgr = notremovablewhenupgr;
493 for( v = 0; v < (*consdata)->nvars; ++v )
503 for( v = 0; v < (*consdata)->nvars; v++ )
524 if( consdata->rows !=
NULL )
526 for(
r = 0;
r < consdata->nrows; ++
r )
535 if( consdata->aggrrow !=
NULL )
538 consdata->aggrrow =
NULL;
567 assert((*consdata)->watchedvar1 == -1);
568 assert((*consdata)->watchedvar2 == -1);
575 if( (*consdata)->nlrow !=
NULL )
581 for( v = 0; v < (*consdata)->nvars; v++ )
629 SCIP_Bool transformed;
649 consdata->vars[consdata->nvars] =
var;
651 consdata->sorted = (consdata->nvars == 1);
652 consdata->changed =
TRUE;
653 consdata->merged =
FALSE;
670 if( consdata->rows !=
NULL )
672 SCIPerrorMessage(
"cannot add coefficients to AND-constraint after LP relaxation was created\n");
710 if( consdata->watchedvar1 == pos )
714 if( consdata->watchedvar2 == pos )
719 assert(pos != consdata->watchedvar1);
720 assert(pos != consdata->watchedvar2);
726 consdata->vars[pos] = consdata->vars[consdata->nvars-1];
730 if( consdata->watchedvar1 == consdata->nvars )
731 consdata->watchedvar1 = pos;
732 if( consdata->watchedvar2 == consdata->nvars )
733 consdata->watchedvar2 = pos;
735 consdata->propagated =
FALSE;
736 consdata->sorted =
FALSE;
737 consdata->changed =
TRUE;
750 if( !consdata->sorted )
752 if( consdata->nvars <= 1 )
753 consdata->sorted =
TRUE;
760 if( consdata->watchedvar1 != -1 )
762 var1 = consdata->vars[consdata->watchedvar1];
764 consdata->watchedvar1 = -1;
765 if( consdata->watchedvar2 != -1 )
767 var2 = consdata->vars[consdata->watchedvar2];
769 consdata->watchedvar2 = -1;
772 assert(consdata->watchedvar1 == -1);
773 assert(consdata->watchedvar2 == -1);
778 consdata->sorted =
TRUE;
793 consdata->watchedvar1 = pos;
804 consdata->watchedvar2 = pos;
815 for( v = 0; v < consdata->nvars; ++v )
843 assert(consdata->nvars == 0 || consdata->vars !=
NULL);
848 var = consdata->vars[v];
879#ifdef SCIP_DISABLED_CODE
891 if(
repvar != consdata->resvar )
910 consdata->resvar =
repvar;
911 consdata->changed =
TRUE;
939 nvars = consdata->nvars;
942 consdata->nrows =
nvars + 1;
975 SCIP_Bool* infeasible
993 if( consdata->aggrrow ==
NULL )
1010 if( !(*infeasible) )
1012 if( consdata->rows ==
NULL )
1049 if( consdata->nlrow ==
NULL )
1057 for(
i = 0;
i < consdata->nvars; ++
i )
1068 for(
i = 0;
i < consdata->nvars; ++
i )
1112 for(
r = 0;
r < consdata->nrows; ++
r )
1143 for(
i = 0;
i < consdata->nvars; ++
i )
1222 if( consdata->rows ==
NULL )
1229 for(
r = 0;
r < consdata->nrows; ++
r )
1303 for( v = 0; v < consdata->nvars; ++v )
1326 SCIP_Bool infeasible;
1327 SCIP_Bool tightened;
1329 SCIPdebugMsg(
scip,
"constraint <%s>: operator %d fixed to 0.0 -> fix resultant <%s> to 0.0\n",
1365 SCIP_Bool infeasible;
1366 SCIP_Bool tightened;
1369 for( v = 0; v <
nvars && !(*cutoff); ++v )
1371 SCIPdebugMsg(
scip,
"constraint <%s>: resultant fixed to 1.0 -> fix operator var <%s> to 1.0\n",
1383 else if( tightened )
1430 nvars = consdata->nvars;
1440 SCIP_Bool infeasible;
1441 SCIP_Bool tightened;
1455 else if( tightened )
1464 else if( tightened )
1484 for( v = 0; v <
nvars; ++v )
1536 if( watchedvar2 == -1 )
1538 SCIP_Bool infeasible;
1539 SCIP_Bool tightened;
1541 assert(watchedvar1 != -1);
1548 for( v = consdata->nvars - 1; v >= 0; --v )
1549 if( v != watchedvar1 )
1554 SCIPdebugMsg(
scip,
"constraint <%s>: resultant <%s> fixed to 0.0, only one unfixed operand -> fix operand <%s> to 0.0\n",
1618 if( consdata->merged )
1622 if( consdata->nvars <= 1 )
1624 consdata->merged =
TRUE;
1628 vars = consdata->vars;
1629 nvars = consdata->nvars;
1642 for( v =
nvars - 1; v >= 0; --v )
1669 for( v =
nvars - 1; v >= 0; --v )
1695 SCIP_Bool infeasible;
1700 SCIPdebugMsg(
scip,
"AND-constraint <%s> is redundant: variable <%s> and its negation are present -> fix resultant <%s> = 0\n",
1723 consdata->merged =
TRUE;
1755 SCIP_Bool infeasible;
1756 SCIP_Bool tightened;
1764 resvar = consdata->resvar;
1765 vars = consdata->vars;
1766 nvars = consdata->nvars;
1771 if( consdata->propagated )
1773 assert(consdata->nofixedzero);
1785 if( !consdata->nofixedzero )
1795 consdata->nofixedzero =
TRUE;
1836 watchedvar1 = consdata->watchedvar1;
1837 watchedvar2 = consdata->watchedvar2;
1840 if( watchedvar1 != -1 )
1846 if( watchedvar2 != -1 )
1854 if( watchedvar1 == -1 )
1856 watchedvar1 = watchedvar2;
1859 assert(watchedvar1 != -1 || watchedvar2 == -1);
1862 if( watchedvar2 == -1 )
1869 if( watchedvar1 == -1 )
1871 assert(watchedvar2 == -1);
1874 else if( watchedvar1 !=
i )
1882 assert(watchedvar1 != -1 || watchedvar2 == -1);
1885 if( watchedvar1 == -1 )
1887 assert(watchedvar2 == -1);
1889 SCIPdebugMsg(
scip,
"constraint <%s>: all operator vars fixed to 1.0 -> fix resultant <%s> to 1.0\n",
1918 assert(watchedvar1 != -1);
1962 vars = consdata->vars;
1963 nvars = consdata->nvars;
2057 SCIP_Bool infeasible;
2082 for(
c = nconss - 1;
c >= 0 && !(*cutoff); --
c )
2110 vars = consdata->vars;
2111 nvars = consdata->nvars;
2119 resvar = consdata->resvar;
2140 for( v =
nvars - 1; v >= 0; --v )
2195 for( v =
nvars - 1; v >= 0 && !(*cutoff); --v )
2216 SCIPdebugMsg(
scip,
"dual-fixing all variables in constraint <%s> with positive contribution (when together exceeding the negative contribution of the resultant) to 0 and with negative contribution to 1\n",
SCIPconsGetName(cons));
2242 SCIP_Bool redundant;
2320 SCIPdebugMsg(
scip,
"dual-fixing variable <%s> in constraint <%s> to %g, because the contribution is%s " \
2321 "enough to nullify/exceed the contribution of the resultant \n",
2332 SCIPdebugMsg(
scip,
"dual-fixing all variables, except the variable with the highest contribution to " \
2333 "the objective, in constraint <%s> with positive contribution to 0 and with negative contribution to 1\n",
2385 SCIP_Bool redundant;
2388 SCIP_Bool linearize =
FALSE;
2405 for( v =
nvars - 1; v >= 0; --v )
2438 "dual aggregating operand <%s> with 1 up- and downlock to the resultant <%s> in constraint <%s>\n",
2463 for( v = consdata->nvars - 1; v >= 0; --v )
2477 "dual-fixing variable <%s> in constraint <%s> to 1, because the contribution is negative\n",
2499 for( v =
nvars - 1; v >= 0; --v )
2591 consvars[0] = consdata->resvar;
2596 for( v = consdata->nvars - 1; v >= 0; --v )
2599 consvars[1] = consdata->vars[v];
2611 (*naddconss) += consdata->nvars;
2619 else if( consdata->nvars == 1 )
2706 SCIP_Bool infeasible;
2726 vars = consdata->vars;
2727 nvars = consdata->nvars;
2735 for( v =
nvars - 1; v >= 0; --v )
2741 SCIPdebugMsg(
scip,
"In constraint <%s> the operand <%s> is fixed to 1 so remove it from the constraint\n",
2754 SCIPdebugMsg(
scip,
"constraint <%s> redundant: because operand <%s> is fixed to zero so we can fix the resultant <%s> to 0\n",
2770 if( consdata->nvars <
nvars )
2777 if( consdata->nvars == 0 )
2779 SCIPdebugMsg(
scip,
"All operand in constraint <%s> were deleted, so the resultant needs to be fixed to 1\n",
2793 else if( consdata->nvars == 1 )
2795 SCIP_Bool redundant;
2813 nvars = consdata->nvars;
2821 for( v =
nvars - 1; v > 0; --v )
2839 for(
v2 = v - 1;
v2 >= 0; --
v2 )
2868 SCIPdebugMsg(
scip,
"constraint <%s> redundant: because variable <%s> and variable <%s> are in a clique, the resultant <%s> can be fixed to 0\n",
2912 var1 = consdata->resvar;
2925 SCIPdebugMsg(
scip,
"In constraint <%s> the resultant <%s> is fixed to 1 so fix all operands to 1\n",
2929 for( v =
nvars - 1; v >= 0 && !(*cutoff); --v )
2959 for( v =
nvars - 1; v >= 0; --v )
2983 SCIPdebugMsg(
scip,
"In constraint <%s> the resultant <%s> can be fixed to 0 because the negation of it is an operand.\n",
3003 consvars[0] = consdata->resvar;
3025 SCIPdebugMsg(
scip,
"In constraint <%s> the resultant <%s> can be fixed to 0 because the negation of it is an operand.\n",
3076 SCIPdebugMsg(
scip,
"in constraint <%s> the resultant <%s> can be fixed to 0 because it is in a clique with operand <%s>\n",
3093 for( v =
nvars - 1; v >= 0; --v )
3122 else if(
v2 >= 0 && v == -1 )
3179 SCIPdebugMsg(
scip,
"in constraint <%s> the resultant <%s> can be fixed to 0 because two operands are negated of each other\n",
3202 SCIP_Bool redundant;
3205 SCIPdebugMsg(
scip,
"In constraint <%s> the operand <%s> is in a negated clique with all other operands, so we can aggregated this operand to the resultant <%s>.\n",
3233 var1 = consdata->resvar;
3241 for( v =
nvars - 1; v >= 0; --v )
3262 for(
v2 = v - 1;
v2 >= 0; --
v2 )
3290 for( v =
nvars - 1; v >= 0; --v )
3393 assert(consdata->sorted);
3394 assert(consdata->nvars > 0);
3399 assert(minidx >= 0 && minidx <= maxidx);
3427 hashtablesize = nconss;
3435 for(
c = 0;
c < nconss; ++
c )
3458 SCIP_Bool redundant;
3549 for(
i = 0;
i < nconss;
i++ )
3555 if( !conshdlrdata->enforcecuts )
3647#ifdef SCIP_DISABLED_CODE
3648 SCIPdebugMsg(
scip,
"preprocess AND-constraint pair <%s>[chg:%d] and <%s>[chg:%d]\n",
3712 SCIP_Bool infeasible;
3713 SCIP_Bool redundant;
3717 SCIPdebugMsg(
scip,
"equivalent AND-constraints <%s> and <%s>: aggregate resultants <%s> == <%s>\n",
3750 SCIP_Bool infeasible;
3754 SCIPdebugMsg(
scip,
"AND-constraint <%s> is superset of <%s>: add implication <%s> = 1 -> <%s> = 1\n",
3760 &infeasible, &nboundchgs) );
3762 (*nbdchgs) += nboundchgs;
3766 SCIP_Bool infeasible;
3770 SCIPdebugMsg(
scip,
"AND-constraint <%s> is superset of <%s>: add implication <%s> = 1 -> <%s> = 1\n",
3776 &infeasible, &nboundchgs) );
3778 (*nbdchgs) += nboundchgs;
3801 SCIP_Real constant = 0.0;
3822 for(
i = 0;
i < consdata->nvars; ++
i )
3895 if( conshdlrdata->linearize )
3913 for(
c = 0;
c < nconss; ++
c )
3926 nvars = consdata->nvars;
3928 if( !conshdlrdata->aggrlinearization )
3930 vars[0] = consdata->resvar;
3935 for( v = 0; v <
nvars; ++v )
3938 vars[1] = consdata->vars[v];
3956 for( v = 0; v <
nvars; ++v )
3958 vars[v] = consdata->vars[v];
3964 if( conshdlrdata->aggrlinearization )
4010#ifdef GMLGATEPRINTING
4068 for(
c = nconss - 1;
c >= 0; --
c )
4080 if( consdata->nvars == 0 )
4109 for( v = consdata->nvars - 1; v >= 0; --v )
4131#ifdef SCIP_DISABLED_CODE
4132 for( v =
nvars - 1; v >= 0; --v )
4173 for(
c = 0;
c < nconss; ++
c )
4190 for(
c = 0;
c < nconss; ++
c )
4197 if( consdata->nlrow !=
NULL )
4258 *infeasible =
FALSE;
4260 for(
i = 0;
i < nconss && !(*infeasible);
i++ )
4350 for(
i = 0;
i < nconss;
i++ )
4412 else if( nfixedvars > 0 || nupgdconss > 0 )
4465 consdata->propagated =
FALSE;
4487 assert(consdata->nvars >= 1);
4490 if( consdata->nvars == 1 )
4492 SCIP_Bool redundant;
4519 else if( !consdata->impladded )
4524 for(
i = 0;
i < consdata->nvars && !
cutoff; ++
i )
4532 consdata->impladded =
TRUE;
4544 consdata->opimpladded =
TRUE;
4552 SCIP_CALL(
dualPresolve(
scip, conss, nconss, conshdlrdata->eventhdlr, &
entries, &nentries, &
cutoff, nfixedvars, naggrvars, nchgcoefs, ndelconss, nupgdconss, naddconss) );
4676 for(
i = 0;
i < consdata->nvars; ++
i )
4739 const char* consname;
4766 for( v = 0; v <
nvars; ++v )
4783 initial, separate, enforce, check,
propagate, local, modifiable, dynamic, removable, stickingatnode) );
4810 if( resvar ==
NULL )
4826 SCIPerrorMessage(
"missing starting character '(' parsing AND-constraint\n");
4875 initial, separate, enforce, check,
propagate, local, modifiable, dynamic, removable, stickingatnode) );
4892 initial, separate, enforce, check,
propagate, local, modifiable, dynamic, removable, stickingatnode) );
4915 vars[consdata->nvars] = consdata->resvar;
4933 (*nvars) = consdata->nvars + 1;
4975 consdata->nofixedzero =
FALSE;
4977 consdata->propagated =
FALSE;
5016#ifdef GMLGATEPRINTING
5042 "should pairwise constraint comparison be performed in presolving?",
5045 "constraints/and/presolusehashing",
5046 "should hash table be used for detecting redundant constraints in advance",
5050 "should the AND-constraint get linearized and removed (in presolving)?",
5054 "should cuts be separated during LP enforcing?",
5058 "should an aggregated linearization be used?",
5062 "should all binary resultant variables be upgraded to implicit binary variables?",
5066 "should dual presolving be performed?",
5095 SCIP_Bool modifiable,
5101 SCIP_Bool removable,
5103 SCIP_Bool stickingatnode
5111 SCIP_Bool infeasible;
5115 if( conshdlr ==
NULL )
5148 for( v =
nvars - 1; v >= 0; --v )
5172 SCIP_CALL(
SCIPcreateCons(
scip, cons, name, conshdlr, consdata, initial, separate, enforce, check,
propagate,
5173 local, modifiable, dynamic, removable, stickingatnode) );
5225 return consdata->nvars;
5249 return consdata->vars;
5273 return consdata->resvar;
5297 return consdata->sorted;
5322 assert(consdata->sorted);
5353 consdata->checkwhenupgr =
flag;
5385 consdata->notremovablewhenupgr =
flag;
static SCIP_RETCODE addRelaxation(SCIP *scip, SCIP_CONS *cons, SCIP_Bool *infeasible)
static SCIP_RETCODE consdataFreeRows(SCIP *scip, SCIP_CONSDATA *consdata)
static SCIP_RETCODE consdataPrint(SCIP *scip, SCIP_CONSDATA *consdata, FILE *file)
static SCIP_RETCODE consdataCatchWatchedEvents(SCIP *scip, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int pos, int *filterpos)
static SCIP_RETCODE consdataDropEvents(SCIP *scip, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr)
#define DEFAULT_DUALPRESOLVING
static SCIP_RETCODE dualPresolve(SCIP *scip, SCIP_CONS **conss, int nconss, SCIP_EVENTHDLR *eventhdlr, unsigned char **entries, int *nentries, SCIP_Bool *cutoff, int *nfixedvars, int *naggrvars, int *nchgcoefs, int *ndelconss, int *nupgdconss, int *naddconss)
static SCIP_RETCODE consdataSwitchWatchedvars(SCIP *scip, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int watchedvar1, int watchedvar2)
#define CONSHDLR_NEEDSCONS
#define CONSHDLR_SEPAFREQ
static SCIP_RETCODE delCoefPos(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, int pos)
#define CONSHDLR_CHECKPRIORITY
static SCIP_RETCODE consdataFixOperandsOne(SCIP *scip, SCIP_CONS *cons, SCIP_VAR **vars, int nvars, SCIP_Bool *cutoff, int *nfixedvars)
static SCIP_RETCODE separateCons(SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol, SCIP_Bool *separated, SCIP_Bool *cutoff)
static SCIP_RETCODE addCoef(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_VAR *var)
static SCIP_RETCODE createRelaxation(SCIP *scip, SCIP_CONS *cons)
#define CONSHDLR_PROP_TIMING
static void conshdlrdataFree(SCIP *scip, SCIP_CONSHDLRDATA **conshdlrdata)
static SCIP_RETCODE unlockRounding(SCIP *scip, SCIP_CONS *cons, SCIP_VAR *var)
static SCIP_RETCODE analyzeZeroResultant(SCIP *scip, SCIP_CONS *cons, int watchedvar1, int watchedvar2, SCIP_Bool *cutoff, int *nfixedvars)
static SCIP_RETCODE consdataCreate(SCIP *scip, SCIP_CONSDATA **consdata, SCIP_EVENTHDLR *eventhdlr, int nvars, SCIP_VAR **vars, SCIP_VAR *resvar, SCIP_Bool checkwhenupgr, SCIP_Bool notremovablewhenupgr)
#define DEFAULT_UPGRRESULTANT
#define CONSHDLR_MAXPREROUNDS
static SCIP_RETCODE consdataFixResultantZero(SCIP *scip, SCIP_CONS *cons, SCIP_VAR *resvar, int pos, SCIP_Bool *cutoff, int *nfixedvars)
#define DEFAULT_PRESOLPAIRWISE
#define CONSHDLR_SEPAPRIORITY
static SCIP_RETCODE analyzeConflictOne(SCIP *scip, SCIP_CONS *cons, int falsepos)
static SCIP_RETCODE detectRedundantConstraints(SCIP *scip, BMS_BLKMEM *blkmem, SCIP_CONS **conss, int nconss, int *firstchange, SCIP_Bool *cutoff, int *naggrvars, int *ndelconss)
#define DEFAULT_LINEARIZE
static SCIP_RETCODE cliquePresolve(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *cutoff, int *nfixedvars, int *naggrvars, int *nchgcoefs, int *ndelconss, int *naddconss)
static SCIP_RETCODE preprocessConstraintPairs(SCIP *scip, SCIP_CONS **conss, int firstchange, int chkind, SCIP_Bool *cutoff, int *naggrvars, int *nbdchgs, int *ndelconss)
static SCIP_RETCODE consdataLinearize(SCIP *scip, SCIP_CONS *cons, SCIP_Bool *cutoff, int *nfixedvars, int *nupgdconss)
static SCIP_RETCODE addSymmetryInformation(SCIP *scip, SYM_SYMTYPE symtype, SCIP_CONS *cons, SYM_GRAPH *graph, SCIP_Bool *success)
static SCIP_RETCODE lockRounding(SCIP *scip, SCIP_CONS *cons, SCIP_VAR *var)
static SCIP_RETCODE consdataEnsureVarsSize(SCIP *scip, SCIP_CONSDATA *consdata, int num)
static SCIP_RETCODE checkCons(SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol, SCIP_Bool checklprows, SCIP_Bool printreason, SCIP_Bool *violated)
#define DEFAULT_PRESOLUSEHASHING
static SCIP_RETCODE consdataFree(SCIP *scip, SCIP_CONSDATA **consdata, SCIP_EVENTHDLR *eventhdlr)
static SCIP_RETCODE consdataDropWatchedEvents(SCIP *scip, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int pos, int filterpos)
#define MINGAINPERNMINCOMPARISONS
static SCIP_RETCODE analyzeConflictZero(SCIP *scip, SCIP_CONS *cons)
#define CONSHDLR_PROPFREQ
#define DEFAULT_ENFORCECUTS
#define CONSHDLR_PRESOLTIMING
static void consdataSort(SCIP_CONSDATA *consdata)
static SCIP_RETCODE addNlrow(SCIP *scip, SCIP_CONS *cons)
#define CONSHDLR_EAGERFREQ
static SCIP_RETCODE conshdlrdataCreate(SCIP *scip, SCIP_CONSHDLRDATA **conshdlrdata, SCIP_EVENTHDLR *eventhdlr)
#define CONSHDLR_ENFOPRIORITY
static SCIP_RETCODE applyFixings(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, int *nchgcoefs)
static SCIP_RETCODE resolvePropagation(SCIP *scip, SCIP_CONS *cons, SCIP_VAR *infervar, PROPRULE proprule, SCIP_BDCHGIDX *bdchgidx, SCIP_RESULT *result)
#define CONSHDLR_DELAYSEPA
static SCIP_RETCODE mergeMultiples(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, unsigned char **entries, int *nentries, int *nfixedvars, int *nchgcoefs, int *ndelconss)
static SCIP_RETCODE enforceConstraint(SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_CONS **conss, int nconss, SCIP_SOL *sol, SCIP_RESULT *result)
#define DEFAULT_AGGRLINEARIZATION
static SCIP_RETCODE propagateCons(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *cutoff, int *nfixedvars, int *nupgdconss)
#define CONSHDLR_DELAYPROP
static SCIP_RETCODE consdataCatchEvents(SCIP *scip, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr)
Constraint handler for AND constraints, .
Constraint handler for linear constraints in their most general form, .
Constraint handler for logicor constraints (equivalent to set covering, but algorithms are suited fo...
constraint handler for pseudoboolean constraints
#define ARTIFICIALVARNAMEPREFIX
Constraint handler for the set partitioning / packing / covering constraints .
#define SCIP_CALL_FINALLY(x, y)
product expression handler
variable expression handler
SCIP_RETCODE SCIPcreateConsAnd(SCIP *scip, SCIP_CONS **cons, const char *name, SCIP_VAR *resvar, int nvars, SCIP_VAR **vars, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_RETCODE SCIPchgAndConsCheckFlagWhenUpgr(SCIP *scip, SCIP_CONS *cons, SCIP_Bool flag)
SCIP_VAR * SCIPgetResultantAnd(SCIP *scip, SCIP_CONS *cons)
int SCIPgetNVarsAnd(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPchgAndConsRemovableFlagWhenUpgr(SCIP *scip, SCIP_CONS *cons, SCIP_Bool flag)
SCIP_RETCODE SCIPcreateConsSetpack(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_RETCODE SCIPsortAndCons(SCIP *scip, SCIP_CONS *cons)
SCIP_Bool SCIPisAndConsSorted(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPcreateConsLinear(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_Real *vals, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_RETCODE SCIPcreateConsSetpart(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_VAR ** SCIPgetVarsAnd(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPcreateConsLogicor(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_RETCODE SCIPcreateConsBasicAnd(SCIP *scip, SCIP_CONS **cons, const char *name, SCIP_VAR *resvar, int nvars, SCIP_VAR **vars)
SCIP_RETCODE SCIPincludeConshdlrAnd(SCIP *scip)
SCIP_RETCODE SCIPgetVarCopy(SCIP *sourcescip, SCIP *targetscip, SCIP_VAR *sourcevar, SCIP_VAR **targetvar, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, SCIP_Bool global, SCIP_Bool *success)
SCIP_RETCODE SCIPcreateExprVar(SCIP *scip, SCIP_EXPR **expr, SCIP_VAR *var, SCIP_DECL_EXPR_OWNERCREATE((*ownercreate)), void *ownercreatedata)
SCIP_RETCODE SCIPcreateExprProduct(SCIP *scip, SCIP_EXPR **expr, int nchildren, SCIP_EXPR **children, SCIP_Real coefficient, SCIP_DECL_EXPR_OWNERCREATE((*ownercreate)), void *ownercreatedata)
void SCIPgmlWriteNode(FILE *file, unsigned int id, const char *label, const char *nodetype, const char *fillcolor, const char *bordercolor)
void SCIPgmlWriteClosing(FILE *file)
void SCIPgmlWriteOpening(FILE *file, SCIP_Bool directed)
void SCIPgmlWriteArc(FILE *file, unsigned int source, unsigned int target, const char *label, const char *color)
SCIP_Bool SCIPisTransformed(SCIP *scip)
SCIP_Bool SCIPisStopped(SCIP *scip)
SCIP_STAGE SCIPgetStage(SCIP *scip)
int SCIPgetNIntVars(SCIP *scip)
int SCIPgetNImplVars(SCIP *scip)
int SCIPgetNContVars(SCIP *scip)
SCIP_RETCODE SCIPgetVarsData(SCIP *scip, SCIP_VAR ***vars, int *nvars, int *nbinvars, int *nintvars, int *nimplvars, int *ncontvars)
int SCIPgetNVars(SCIP *scip)
SCIP_RETCODE SCIPaddCons(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPdelCons(SCIP *scip, SCIP_CONS *cons)
int SCIPgetNBinVars(SCIP *scip)
void SCIPhashmapFree(SCIP_HASHMAP **hashmap)
int SCIPhashmapGetImageInt(SCIP_HASHMAP *hashmap, void *origin)
SCIP_RETCODE SCIPhashmapCreate(SCIP_HASHMAP **hashmap, BMS_BLKMEM *blkmem, int mapsize)
SCIP_RETCODE SCIPhashmapInsertInt(SCIP_HASHMAP *hashmap, void *origin, int image)
void SCIPhashtableFree(SCIP_HASHTABLE **hashtable)
#define SCIPhashFour(a, b, c, d)
SCIP_RETCODE SCIPhashtableCreate(SCIP_HASHTABLE **hashtable, BMS_BLKMEM *blkmem, int tablesize, SCIP_DECL_HASHGETKEY((*hashgetkey)), SCIP_DECL_HASHKEYEQ((*hashkeyeq)), SCIP_DECL_HASHKEYVAL((*hashkeyval)), void *userptr)
void * SCIPhashtableRetrieve(SCIP_HASHTABLE *hashtable, void *key)
SCIP_RETCODE SCIPhashtableInsert(SCIP_HASHTABLE *hashtable, void *element)
SCIP_RETCODE SCIPdelConsLocal(SCIP *scip, SCIP_CONS *cons)
void SCIPinfoMessage(SCIP *scip, FILE *file, const char *formatstr,...)
#define SCIPdebugMsgPrint
SCIP_RETCODE SCIPaddBoolParam(SCIP *scip, const char *name, const char *desc, SCIP_Bool *valueptr, SCIP_Bool isadvanced, SCIP_Bool defaultvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)
SCIP_RETCODE SCIPinitConflictAnalysis(SCIP *scip, SCIP_CONFTYPE conftype, SCIP_Bool iscutoffinvolved)
SCIP_Bool SCIPisConflictAnalysisApplicable(SCIP *scip)
SCIP_RETCODE SCIPaddConflictBinvar(SCIP *scip, SCIP_VAR *var)
SCIP_RETCODE SCIPanalyzeConflictCons(SCIP *scip, SCIP_CONS *cons, SCIP_Bool *success)
void SCIPconshdlrSetData(SCIP_CONSHDLR *conshdlr, SCIP_CONSHDLRDATA *conshdlrdata)
SCIP_RETCODE SCIPsetConshdlrFree(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrActive(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrPresol(SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSPRESOL((*conspresol)), int maxprerounds, SCIP_PRESOLTIMING presoltiming)
SCIP_RETCODE SCIPsetConshdlrInitpre(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrSepa(SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSSEPALP((*conssepalp)), SCIP_DECL_CONSSEPASOL((*conssepasol)), int sepafreq, int sepapriority, SCIP_Bool delaysepa)
SCIP_RETCODE SCIPsetConshdlrProp(SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSPROP((*consprop)), int propfreq, SCIP_Bool delayprop, SCIP_PROPTIMING proptiming)
SCIP_RETCODE SCIPsetConshdlrEnforelax(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPincludeConshdlrBasic(SCIP *scip, SCIP_CONSHDLR **conshdlrptr, const char *name, const char *desc, int enfopriority, int chckpriority, int eagerfreq, SCIP_Bool needscons, SCIP_DECL_CONSENFOLP((*consenfolp)), SCIP_DECL_CONSENFOPS((*consenfops)), SCIP_DECL_CONSCHECK((*conscheck)), SCIP_DECL_CONSLOCK((*conslock)), SCIP_CONSHDLRDATA *conshdlrdata)
SCIP_RETCODE SCIPsetConshdlrParse(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrGetVars(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrPrint(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrGetSignedPermsymGraph(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
const char * SCIPconshdlrGetName(SCIP_CONSHDLR *conshdlr)
SCIP_RETCODE SCIPsetConshdlrCopy(SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_DECL_CONSHDLRCOPY((*conshdlrcopy)),)
SCIP_CONSHDLR * SCIPfindConshdlr(SCIP *scip, const char *name)
SCIP_RETCODE SCIPsetConshdlrGetPermsymGraph(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrDelete(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrInitsol(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrDeactive(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_CONSHDLRDATA * SCIPconshdlrGetData(SCIP_CONSHDLR *conshdlr)
SCIP_RETCODE SCIPsetConshdlrTrans(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrResprop(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrExitpre(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrExitsol(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrInitlp(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_RETCODE SCIPsetConshdlrGetNVars(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_CONSDATA * SCIPconsGetData(SCIP_CONS *cons)
int SCIPconsGetPos(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsDynamic(SCIP_CONS *cons)
SCIP_CONSHDLR * SCIPconsGetHdlr(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsInitial(SCIP_CONS *cons)
SCIP_RETCODE SCIPprintCons(SCIP *scip, SCIP_CONS *cons, FILE *file)
SCIP_Bool SCIPconsIsChecked(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsDeleted(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsTransformed(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsEnforced(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsActive(SCIP_CONS *cons)
SCIP_RETCODE SCIPcreateCons(SCIP *scip, SCIP_CONS **cons, const char *name, SCIP_CONSHDLR *conshdlr, SCIP_CONSDATA *consdata, SCIP_Bool initial, SCIP_Bool separate, SCIP_Bool enforce, SCIP_Bool check, SCIP_Bool propagate, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool dynamic, SCIP_Bool removable, SCIP_Bool stickingatnode)
SCIP_Bool SCIPconsIsPropagated(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsLocal(SCIP_CONS *cons)
const char * SCIPconsGetName(SCIP_CONS *cons)
SCIP_RETCODE SCIPresetConsAge(SCIP *scip, SCIP_CONS *cons)
SCIP_Bool SCIPconsIsModifiable(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsAdded(SCIP_CONS *cons)
SCIP_RETCODE SCIPupdateConsFlags(SCIP *scip, SCIP_CONS *cons0, SCIP_CONS *cons1)
SCIP_Bool SCIPconsIsStickingAtNode(SCIP_CONS *cons)
SCIP_RETCODE SCIPreleaseCons(SCIP *scip, SCIP_CONS **cons)
SCIP_Bool SCIPconsIsSeparated(SCIP_CONS *cons)
SCIP_RETCODE SCIPincConsAge(SCIP *scip, SCIP_CONS *cons)
SCIP_Bool SCIPconsIsRemovable(SCIP_CONS *cons)
SCIP_RETCODE SCIPaddRow(SCIP *scip, SCIP_ROW *row, SCIP_Bool forcecut, SCIP_Bool *infeasible)
SCIP_RETCODE SCIPincludeEventhdlrBasic(SCIP *scip, SCIP_EVENTHDLR **eventhdlrptr, const char *name, const char *desc, SCIP_DECL_EVENTEXEC((*eventexec)), SCIP_EVENTHDLRDATA *eventhdlrdata)
SCIP_EVENTTYPE SCIPeventGetType(SCIP_EVENT *event)
SCIP_RETCODE SCIPcatchVarEvent(SCIP *scip, SCIP_VAR *var, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int *filterpos)
SCIP_RETCODE SCIPdropVarEvent(SCIP *scip, SCIP_VAR *var, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int filterpos)
SCIP_RETCODE SCIPreleaseExpr(SCIP *scip, SCIP_EXPR **expr)
#define SCIPfreeBlockMemoryArray(scip, ptr, num)
int SCIPcalcMemGrowSize(SCIP *scip, int num)
#define SCIPallocBufferArray(scip, ptr, num)
#define SCIPreallocBufferArray(scip, ptr, num)
#define SCIPfreeBufferArray(scip, ptr)
#define SCIPduplicateBufferArray(scip, ptr, source, num)
#define SCIPallocBlockMemoryArray(scip, ptr, num)
#define SCIPreallocBlockMemoryArray(scip, ptr, oldnum, newnum)
#define SCIPfreeBlockMemory(scip, ptr)
#define SCIPallocBlockMemory(scip, ptr)
#define SCIPduplicateBlockMemoryArray(scip, ptr, source, num)
SCIP_RETCODE SCIPdelNlRow(SCIP *scip, SCIP_NLROW *nlrow)
SCIP_RETCODE SCIPaddNlRow(SCIP *scip, SCIP_NLROW *nlrow)
SCIP_Bool SCIPisNLPConstructed(SCIP *scip)
SCIP_RETCODE SCIPreleaseNlRow(SCIP *scip, SCIP_NLROW **nlrow)
SCIP_Bool SCIPnlrowIsInNLP(SCIP_NLROW *nlrow)
SCIP_RETCODE SCIPcreateNlRow(SCIP *scip, SCIP_NLROW **nlrow, const char *name, SCIP_Real constant, int nlinvars, SCIP_VAR **linvars, SCIP_Real *lincoefs, SCIP_EXPR *expr, SCIP_Real lhs, SCIP_Real rhs, SCIP_EXPRCURV curvature)
SCIP_Bool SCIPinProbing(SCIP *scip)
SCIP_RETCODE SCIPaddVarsToRowSameCoef(SCIP *scip, SCIP_ROW *row, int nvars, SCIP_VAR **vars, SCIP_Real val)
SCIP_RETCODE SCIPcreateEmptyRowCons(SCIP *scip, SCIP_ROW **row, SCIP_CONS *cons, const char *name, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool local, SCIP_Bool modifiable, SCIP_Bool removable)
SCIP_RETCODE SCIPaddVarToRow(SCIP *scip, SCIP_ROW *row, SCIP_VAR *var, SCIP_Real val)
SCIP_Real SCIPgetRowSolFeasibility(SCIP *scip, SCIP_ROW *row, SCIP_SOL *sol)
SCIP_RETCODE SCIPreleaseRow(SCIP *scip, SCIP_ROW **row)
SCIP_Bool SCIProwIsInLP(SCIP_ROW *row)
void SCIPupdateSolConsViolation(SCIP *scip, SCIP_SOL *sol, SCIP_Real absviol, SCIP_Real relviol)
SCIP_Real SCIPgetSolVal(SCIP *scip, SCIP_SOL *sol, SCIP_VAR *var)
SCIP_RETCODE SCIPgetSymActiveVariables(SCIP *scip, SYM_SYMTYPE symtype, SCIP_VAR ***vars, SCIP_Real **scalars, int *nvars, SCIP_Real *constant, SCIP_Bool transformed)
SCIP_RETCODE SCIPextendPermsymDetectionGraphLinear(SCIP *scip, SYM_GRAPH *graph, SCIP_VAR **vars, SCIP_Real *vals, int nvars, SCIP_CONS *cons, SCIP_Real lhs, SCIP_Real rhs, SCIP_Bool *success)
SCIP_Real SCIPinfinity(SCIP *scip)
SCIP_Bool SCIPisGE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisFeasEQ(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisPositive(SCIP *scip, SCIP_Real val)
SCIP_Bool SCIPisLE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisInfinity(SCIP *scip, SCIP_Real val)
SCIP_Bool SCIPisFeasNegative(SCIP *scip, SCIP_Real val)
SCIP_Bool SCIPisGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisNegative(SCIP *scip, SCIP_Real val)
SCIP_Bool SCIPisEQ(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisLT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisFeasPositive(SCIP *scip, SCIP_Real val)
SCIP_Bool SCIPinRepropagation(SCIP *scip)
int SCIPgetDepth(SCIP *scip)
SCIP_RETCODE SCIPcutoffNode(SCIP *scip, SCIP_NODE *node)
SCIP_NODE * SCIPgetRootNode(SCIP *scip)
SCIP_RETCODE SCIPlockVarCons(SCIP *scip, SCIP_VAR *var, SCIP_CONS *cons, SCIP_Bool lockdown, SCIP_Bool lockup)
void SCIPvarsGetProbvar(SCIP_VAR **vars, int nvars)
SCIP_VAR * SCIPvarGetNegatedVar(SCIP_VAR *var)
SCIP_Bool SCIPvarIsActive(SCIP_VAR *var)
SCIP_Bool SCIPvarIsBinary(SCIP_VAR *var)
SCIP_RETCODE SCIPgetTransformedVars(SCIP *scip, int nvars, SCIP_VAR **vars, SCIP_VAR **transvars)
SCIP_VARSTATUS SCIPvarGetStatus(SCIP_VAR *var)
int SCIPvarGetNLocksUpType(SCIP_VAR *var, SCIP_LOCKTYPE locktype)
SCIP_Bool SCIPdoNotAggr(SCIP *scip)
SCIP_RETCODE SCIPvarGetAggregatedObj(SCIP_VAR *var, SCIP_Real *aggrobj)
SCIP_Real SCIPvarGetUbLocal(SCIP_VAR *var)
SCIP_RETCODE SCIPgetBinvarRepresentatives(SCIP *scip, int nvars, SCIP_VAR **vars, SCIP_VAR **repvars, SCIP_Bool *negated)
SCIP_Bool SCIPvarIsTransformed(SCIP_VAR *var)
SCIP_RETCODE SCIPparseVarsList(SCIP *scip, const char *str, SCIP_VAR **vars, int *nvars, int varssize, int *requiredsize, char **endptr, char delimiter, SCIP_Bool *success)
SCIP_RETCODE SCIPaggregateVars(SCIP *scip, SCIP_VAR *varx, SCIP_VAR *vary, SCIP_Real scalarx, SCIP_Real scalary, SCIP_Real rhs, SCIP_Bool *infeasible, SCIP_Bool *redundant, SCIP_Bool *aggregated)
SCIP_VAR * SCIPvarGetProbvar(SCIP_VAR *var)
SCIP_RETCODE SCIPparseVarName(SCIP *scip, const char *str, SCIP_VAR **var, char **endptr)
SCIP_VARTYPE SCIPvarGetType(SCIP_VAR *var)
SCIP_Real SCIPvarGetUbGlobal(SCIP_VAR *var)
int SCIPvarGetIndex(SCIP_VAR *var)
SCIP_RETCODE SCIPaddVarLocksType(SCIP *scip, SCIP_VAR *var, SCIP_LOCKTYPE locktype, int nlocksdown, int nlocksup)
SCIP_RETCODE SCIPunlockVarCons(SCIP *scip, SCIP_VAR *var, SCIP_CONS *cons, SCIP_Bool lockdown, SCIP_Bool lockup)
SCIP_Real SCIPgetVarUbAtIndex(SCIP *scip, SCIP_VAR *var, SCIP_BDCHGIDX *bdchgidx, SCIP_Bool after)
int SCIPvarGetProbindex(SCIP_VAR *var)
const char * SCIPvarGetName(SCIP_VAR *var)
SCIP_RETCODE SCIPreleaseVar(SCIP *scip, SCIP_VAR **var)
SCIP_RETCODE SCIPchgVarType(SCIP *scip, SCIP_VAR *var, SCIP_VARTYPE vartype, SCIP_Bool *infeasible)
SCIP_RETCODE SCIPgetNegatedVar(SCIP *scip, SCIP_VAR *var, SCIP_VAR **negvar)
SCIP_RETCODE SCIPaddVarImplication(SCIP *scip, SCIP_VAR *var, SCIP_Bool varfixing, SCIP_VAR *implvar, SCIP_BOUNDTYPE impltype, SCIP_Real implbound, SCIP_Bool *infeasible, int *nbdchgs)
SCIP_Real SCIPvarGetLbLocal(SCIP_VAR *var)
SCIP_Bool SCIPvarIsNegated(SCIP_VAR *var)
SCIP_Real SCIPvarGetLbGlobal(SCIP_VAR *var)
SCIP_RETCODE SCIPmarkDoNotMultaggrVar(SCIP *scip, SCIP_VAR *var)
SCIP_RETCODE SCIPfixVar(SCIP *scip, SCIP_VAR *var, SCIP_Real fixedval, SCIP_Bool *infeasible, SCIP_Bool *fixed)
SCIP_Real SCIPgetVarLbAtIndex(SCIP *scip, SCIP_VAR *var, SCIP_BDCHGIDX *bdchgidx, SCIP_Bool after)
int SCIPvarCompare(SCIP_VAR *var1, SCIP_VAR *var2)
SCIP_RETCODE SCIPvarGetProbvarBinary(SCIP_VAR **var, SCIP_Bool *negated)
SCIP_RETCODE SCIPinferBinvarCons(SCIP *scip, SCIP_VAR *var, SCIP_Bool fixedval, SCIP_CONS *infercons, int inferinfo, SCIP_Bool *infeasible, SCIP_Bool *tightened)
SCIP_RETCODE SCIPwriteVarName(SCIP *scip, FILE *file, SCIP_VAR *var, SCIP_Bool type)
SCIP_RETCODE SCIPgetBinvarRepresentative(SCIP *scip, SCIP_VAR *var, SCIP_VAR **repvar, SCIP_Bool *negated)
SCIP_RETCODE SCIPwriteVarsList(SCIP *scip, FILE *file, SCIP_VAR **vars, int nvars, SCIP_Bool type, char delimiter)
SCIP_Bool SCIPvarsHaveCommonClique(SCIP_VAR *var1, SCIP_Bool value1, SCIP_VAR *var2, SCIP_Bool value2, SCIP_Bool regardimplics)
int SCIPvarGetNLocksDownType(SCIP_VAR *var, SCIP_LOCKTYPE locktype)
SCIP_RETCODE SCIPgetTransformedVar(SCIP *scip, SCIP_VAR *var, SCIP_VAR **transvar)
SCIP_RETCODE SCIPcaptureVar(SCIP *scip, SCIP_VAR *var)
SCIP_Bool SCIPallowStrongDualReds(SCIP *scip)
SCIP_Bool SCIPsortedvecFindPtr(void **ptrarray, SCIP_DECL_SORTPTRCOMP((*ptrcomp)), void *val, int len, int *pos)
void SCIPsortPtr(void **ptrarray, SCIP_DECL_SORTPTRCOMP((*ptrcomp)), int len)
int SCIPsnprintf(char *t, int len, const char *s,...)
assert(minobj< SCIPgetCutoffbound(scip))
static SCIP_Bool propagate
memory allocation routines
#define BMScopyMemoryArray(ptr, source, num)
#define BMSclearMemoryArray(ptr, num)
struct BMS_BlkMem BMS_BLKMEM
BMS_BLKMEM * SCIPblkmem(SCIP *scip)
public methods for managing constraints
public methods for managing events
public methods for LP management
public methods for message output
#define SCIPdebugPrintCons(x, y, z)
public data structures and miscellaneous methods
methods for sorting joint arrays of various types
public methods for problem variables
public methods for conflict handler plugins and conflict analysis
public methods for constraint handler plugins and constraints
public methods for problem copies
public methods for cuts and aggregation rows
public methods for event handler plugins and event handlers
public functions to work with algebraic expressions
public methods for the LP relaxation, rows and columns
public methods for memory management
public methods for message handling
public methods for nonlinear relaxation
public methods for numerical tolerances
public methods for SCIP parameter handling
public methods for global and local (sub)problems
public methods for the probing mode
public methods for solutions
public methods for the branch-and-bound tree
public methods for SCIP variables
structs for symmetry computations
methods for dealing with symmetry detection graphs
@ SCIP_CONFTYPE_PROPAGATION
#define SCIP_DECL_CONSGETSIGNEDPERMSYMGRAPH(x)
#define SCIP_DECL_CONSGETPERMSYMGRAPH(x)
#define SCIP_DECL_CONSENFOLP(x)
#define SCIP_DECL_CONSINITPRE(x)
#define SCIP_DECL_CONSDELETE(x)
#define SCIP_DECL_CONSGETVARS(x)
#define SCIP_DECL_CONSINITSOL(x)
#define SCIP_DECL_CONSPRINT(x)
struct SCIP_ConshdlrData SCIP_CONSHDLRDATA
#define SCIP_DECL_CONSSEPALP(x)
#define SCIP_DECL_CONSENFORELAX(x)
#define SCIP_DECL_CONSPROP(x)
#define SCIP_DECL_CONSGETNVARS(x)
#define SCIP_DECL_CONSRESPROP(x)
#define SCIP_DECL_CONSACTIVE(x)
#define SCIP_DECL_CONSENFOPS(x)
#define SCIP_DECL_CONSPARSE(x)
#define SCIP_DECL_CONSTRANS(x)
#define SCIP_DECL_CONSDEACTIVE(x)
#define SCIP_DECL_CONSPRESOL(x)
#define SCIP_DECL_CONSINITLP(x)
#define SCIP_DECL_CONSEXITPRE(x)
#define SCIP_DECL_CONSLOCK(x)
#define SCIP_DECL_CONSCOPY(x)
struct SCIP_ConsData SCIP_CONSDATA
#define SCIP_DECL_CONSCHECK(x)
#define SCIP_DECL_CONSHDLRCOPY(x)
#define SCIP_DECL_CONSEXITSOL(x)
#define SCIP_DECL_CONSFREE(x)
#define SCIP_DECL_CONSSEPASOL(x)
#define SCIP_EVENTTYPE_BOUNDCHANGED
struct SCIP_EventData SCIP_EVENTDATA
#define SCIP_EVENTTYPE_UBTIGHTENED
#define SCIP_DECL_EVENTEXEC(x)
#define SCIP_EVENTTYPE_LBRELAXED
#define SCIP_EVENTTYPE_LBTIGHTENED
#define SCIP_EVENTTYPE_UBRELAXED
#define SCIP_DECL_HASHKEYEQ(x)
#define SCIP_DECL_HASHGETKEY(x)
#define SCIP_DECL_HASHKEYVAL(x)
enum SCIP_Result SCIP_RESULT
enum SCIP_Retcode SCIP_RETCODE
@ SCIP_STAGE_EXITPRESOLVE
enum SYM_Symtype SYM_SYMTYPE
#define SCIP_PRESOLTIMING_EXHAUSTIVE