72#define CONSHDLR_NAME "bounddisjunction"
73#define CONSHDLR_DESC "bound disjunction constraints"
74#define CONSHDLR_ENFOPRIORITY -3000000
75#define CONSHDLR_CHECKPRIORITY -3000000
76#define CONSHDLR_PROPFREQ 1
77#define CONSHDLR_EAGERFREQ 100
79#define CONSHDLR_MAXPREROUNDS -1
80#define CONSHDLR_DELAYPROP FALSE
81#define CONSHDLR_NEEDSCONS TRUE
83#define CONSHDLR_PRESOLTIMING SCIP_PRESOLTIMING_FAST
84#define CONSHDLR_PROP_TIMING SCIP_PROPTIMING_BEFORELP
93#define EVENTHDLR_NAME "bounddisjunction"
94#define EVENTHDLR_DESC "event handler for bound disjunction constraints"
103#define CONFLICTHDLR_NAME "bounddisjunction"
104#define CONFLICTHDLR_DESC "conflict handler creating bound disjunction constraints"
105#define CONFLICTHDLR_PRIORITY -3000000
114#define DEFAULT_CONTINUOUSFRAC 0.4
125#define AGEINCREASE(n) (1.0 + 0.2*n)
127#define AGEINCREASE(n) (0.1*n)
138#ifdef SCIP_DISABLED_CODE
140#define isFeasLT(scip, var, val1, val2) (SCIPvarIsIntegral(var) ? (val2) - (val1) > 0.5 : SCIPisFeasLT(scip, val1, val2))
141#define isFeasLE(scip, var, val1, val2) (SCIPvarIsIntegral(var) ? (val2) - (val1) > -0.5 : SCIPisFeasLE(scip, val1, val2))
142#define isFeasGT(scip, var, val1, val2) (SCIPvarIsIntegral(var) ? (val1) - (val2) > 0.5 : SCIPisFeasGT(scip, val1, val2))
143#define isFeasGE(scip, var, val1, val2) (SCIPvarIsIntegral(var) ? (val1) - (val2) > -0.5 : SCIPisFeasGE(scip, val1, val2))
145#define isFeasLT(scip, var, val1, val2) SCIPisFeasLT(scip, val1, val2)
146#define isFeasLE(scip, var, val1, val2) SCIPisFeasLE(scip, val1, val2)
147#define isFeasGT(scip, var, val1, val2) SCIPisFeasGT(scip, val1, val2)
148#define isFeasGE(scip, var, val1, val2) SCIPisFeasGE(scip, val1, val2)
154struct SCIP_ConshdlrData
297 (*conshdlrdata)->eventhdlr = eventhdlr;
354 for( v = 0; v <
nvars && !redundant; ++v )
358 SCIP_Real
bound = bounds[v];
395 (*consdata)->varssize = 1;
396 (*consdata)->nvars = 1;
407 (*consdata)->varssize =
k;
408 (*consdata)->nvars =
k;
422 (*consdata)->varssize =
nvars;
423 (*consdata)->nvars =
nvars;
428 (*consdata)->vars =
NULL;
429 (*consdata)->boundtypes =
NULL;
430 (*consdata)->bounds =
NULL;
431 (*consdata)->varssize = 0;
432 (*consdata)->nvars = 0;
434 (*consdata)->watchedvar1 = -1;
435 (*consdata)->watchedvar2 = -1;
436 (*consdata)->filterpos1 = -1;
437 (*consdata)->filterpos2 = -1;
485 for( v = 0; v <
nvars; ++v )
560 for( v = 0; v <
nvars; v++ )
598 (*consdata)->vars =
NULL;
599 (*consdata)->boundtypes =
NULL;
600 (*consdata)->bounds =
NULL;
601 (*consdata)->varssize = 0;
602 (*consdata)->nvars = 0;
604 (*consdata)->watchedvar1 = -1;
605 (*consdata)->watchedvar2 = -1;
606 (*consdata)->filterpos1 = -1;
607 (*consdata)->filterpos2 = -1;
649 for( v = 0; v < consdata->nvars; ++v )
677 assert(watchedvar1 == -1 || watchedvar1 != watchedvar2);
678 assert(watchedvar1 != -1 || watchedvar2 == -1);
687 if( watchedvar1 == consdata->watchedvar2 || watchedvar2 == consdata->watchedvar1 )
691 tmp = consdata->watchedvar1;
692 consdata->watchedvar1 = consdata->watchedvar2;
693 consdata->watchedvar2 =
tmp;
694 tmp = consdata->filterpos1;
695 consdata->filterpos1 = consdata->filterpos2;
696 consdata->filterpos2 =
tmp;
698 assert(watchedvar1 == -1 || watchedvar1 != consdata->watchedvar2);
699 assert(watchedvar2 == -1 || watchedvar2 != consdata->watchedvar1);
702 if( consdata->watchedvar1 != -1 && consdata->watchedvar1 != watchedvar1 )
704 assert(consdata->filterpos1 != -1);
706 consdata->watchedvar1 = -1;
708 if( consdata->watchedvar2 != -1 && consdata->watchedvar2 != watchedvar2 )
710 assert(consdata->filterpos2 != -1);
712 consdata->watchedvar2 = -1;
716 if( watchedvar1 != -1 && watchedvar1 != consdata->watchedvar1 )
720 if( watchedvar2 != -1 && watchedvar2 != consdata->watchedvar2 )
726 consdata->watchedvar1 = watchedvar1;
727 consdata->watchedvar2 = watchedvar2;
787 if( consdata->watchedvar1 == pos )
791 if( consdata->watchedvar2 == pos )
796 assert(pos != consdata->watchedvar1);
797 assert(pos != consdata->watchedvar2);
800 consdata->vars[pos] = consdata->vars[consdata->nvars-1];
801 consdata->boundtypes[pos] = consdata->boundtypes[consdata->nvars-1];
802 consdata->bounds[pos] = consdata->bounds[consdata->nvars-1];
806 if( consdata->watchedvar1 == consdata->nvars )
807 consdata->watchedvar1 = pos;
808 if( consdata->watchedvar2 == consdata->nvars )
809 consdata->watchedvar2 = pos;
841 if( consdata->varssize == consdata->nvars )
851 assert(consdata->varssize > consdata->nvars);
861 for( v = 0; v < consdata->nvars; v++ )
864 if( consdata->vars[v] ==
var )
866 if( consdata->boundtypes[v] == boundtype )
893 consdata->vars[consdata->nvars] =
var;
894 consdata->boundtypes[consdata->nvars] = boundtype;
895 consdata->bounds[consdata->nvars] =
bound;
904 if( consdata->watchedvar1 == -1 )
906 assert(consdata->watchedvar2 == -1);
909 else if( consdata->watchedvar2 == -1 )
939 assert(consdata->nvars == 0 || consdata->vars !=
NULL);
947 var = consdata->vars[v];
1012 return isFeasGE(
scip, consdata->vars[pos],
bnd, consdata->bounds[pos]);
1017 return isFeasLE(
scip, consdata->vars[pos],
bnd, consdata->bounds[pos]);
1037 return isFeasLT(
scip, consdata->vars[pos],
bnd, consdata->bounds[pos]);
1042 return isFeasGT(
scip, consdata->vars[pos],
bnd, consdata->bounds[pos]);
1052 SCIP_Bool* redundant
1074 var = consdata->vars[v];
1101 bound = consdata->bounds[v];
1102 boundtype = consdata->boundtypes[v];
1163 nvars = consdata->nvars;
1171 for( v =
nvars - 1; v >= 0; --v )
1189 newvars[v] = consdata->vars[v];
1201 newvars[v] = consdata->vars[v];
1262 for( v = 0; v < consdata->nvars; ++v )
1302 SCIP_Bool* infeasible,
1326 assert(consdata->watchedvar1 == -1 || consdata->watchedvar1 != consdata->watchedvar2);
1330 *infeasible =
FALSE;
1336 nvars = consdata->nvars;
1337 vars = consdata->vars;
1338 boundtypes = consdata->boundtypes;
1339 bounds = consdata->bounds;
1367 watchedvar1 = consdata->watchedvar1;
1372 if( watchedvar1 == -1 )
1374 watchedvar1 = consdata->watchedvar2;
1379 watchedvar2 = consdata->watchedvar2;
1383 assert(watchedvar1 >= 0 || watchedvar2 == -1);
1389 if( watchedvar2 == -1 )
1393 for( v = 0; v <
nvars; ++v )
1395 SCIP_Longint nbranchings;
1398 if( v == consdata->watchedvar1 || v == consdata->watchedvar2 )
1408 assert(v != consdata->watchedvar1);
1409 assert(v != consdata->watchedvar2);
1414 SCIPdebugMsg(
scip,
" -> disabling constraint <%s> (variable <%s> fixed to 1.0)\n",
1416 if( consdata->watchedvar1 != -1 )
1435 watchedvar2 = watchedvar1;
1449 assert(watchedvar1 >= 0 || watchedvar2 == -1);
1451 if( watchedvar1 == -1 )
1457 assert(watchedvar2 == -1);
1472 else if( watchedvar2 == -1 )
1493 for (v = 0; v <
nvars; ++v)
1495 if ( v != watchedvar1 )
1503 SCIPdebugMsg(
scip,
" -> single-literal constraint <%s> (change bound <%s> %s %g) at depth %d\n",
1519 if( watchedvar1 != consdata->watchedvar1 )
1529 SCIPdebugMsg(
scip,
" -> new watched variables <%s> and <%s> of constraint <%s> are still undecided\n",
1570 nvars = consdata->nvars;
1571 vars = consdata->vars;
1572 boundtypes = consdata->boundtypes;
1573 bounds = consdata->bounds;
1581 for( v = 0; v <
nvars; ++v )
1647 nvars = consdata->nvars;
1648 vars = consdata->vars;
1649 boundtypes = consdata->boundtypes;
1650 bounds = consdata->bounds;
1658 for( v = 0; v <
nvars; ++v )
1714 SCIP_Bool* infeasible,
1787 nvars = consdata->nvars;
1788 vars = consdata->vars;
1789 boundtypes = consdata->boundtypes;
1790 bounds = consdata->bounds;
1795 for( v = 0; v <
nvars; ++v )
1828 SCIPdebugMsg(
scip,
" -> creating child to enforce: <%s> %c= %g (priority: %g, estimate: %g)\n",
1893 SCIP_Bool infeasible;
1906 SCIPdebugMsg(
scip,
"Enforcing %d bound disjunction constraints for %s solution\n", nconss,
sol ==
NULL ?
"LP" :
"relaxation");
1943 else if( infeasible )
2010 SCIP_Bool redundant;
2021 for(
c = 0;
c < nconss; ++
c )
2065 for(
c = 0;
c < nconss; ++
c )
2083 if( consdata->nvars != 2 )
2086 if( consdata->vars[0] != consdata->vars[1] )
2091 a = consdata->bounds[0];
2092 b = consdata->bounds[1];
2096 a = consdata->bounds[1];
2097 b = consdata->bounds[0];
2201 SCIP_Bool infeasible;
2212 SCIPdebugMsg(
scip,
"pseudo enforcing %d bound disjunction constraints\n", nconss);
2242 else if( infeasible )
2289 for( v = 0; v < consdata->nvars; ++v )
2315 SCIP_Bool infeasible;
2360 SCIP_Bool infeasible;
2361 SCIP_Bool redundant;
2362 SCIP_Bool tightened;
2416 if( consdata->nvars == 0 )
2422 else if( consdata->nvars == 1 )
2424 SCIPdebugMsg(
scip,
"bound disjunction constraint <%s> has only one undecided literal\n",
2522 assert(consdata->nvars > 0);
2526 vars = consdata->vars;
2527 boundtypes = consdata->boundtypes;
2529 bounds = consdata->bounds;
2534 SCIPdebugMsg(
scip,
"conflict resolving method of bound disjunction constraint handler\n");
2544 for( v = 0; v < consdata->nvars; ++v )
2546 if( v != inferinfo )
2548 assert(consdata->vars[v] !=
infervar || consdata->boundtypes[v] != consdata->boundtypes[inferinfo]);
2580 for(
i = 0;
i < consdata->nvars; ++
i )
2612 assert(consdata->watchedvar1 == -1 || consdata->watchedvar1 != consdata->watchedvar2);
2618 if( consdata->watchedvar1 != -1 )
2621 &consdata->filterpos1) );
2623 if( consdata->watchedvar2 != -1 )
2626 &consdata->filterpos2) );
2649 assert(consdata->watchedvar1 == -1 || consdata->watchedvar1 != consdata->watchedvar2);
2655 if( consdata->watchedvar1 != -1 )
2657 assert(consdata->filterpos1 != -1);
2658 SCIP_CALL(
dropEvents(
scip, cons, consdata, conshdlrdata->eventhdlr, consdata->watchedvar1, consdata->filterpos1) );
2659 consdata->watchedvar1 = -1;
2661 if( consdata->watchedvar2 != -1 )
2663 assert(consdata->filterpos2 != -1);
2664 SCIP_CALL(
dropEvents(
scip, cons, consdata, conshdlrdata->eventhdlr, consdata->watchedvar2, consdata->filterpos2) );
2665 consdata->watchedvar2 = -1;
2719 bounds, initial, separate, enforce, check,
propagate, local, modifiable, dynamic, removable, stickingatnode) );
2747 if(
strncmp(
str,
"bounddisjunction(", 16) != 0 )
2766 while( *
str !=
')' )
2831 if(
nvars > varssize )
2852 initial, separate, enforce, check,
propagate, local, modifiable, dynamic, removable, stickingatnode) );
2899 (*nvars) = consdata->nvars;
2945struct SCIP_ConflicthdlrData
2947 SCIP_Real continuousfrac;
2966 assert(bdchginfos !=
NULL || nbdchginfos == 0);
2989 for(
i = 0;
i < nbdchginfos; ++
i )
3015 if( boundtypes[
j] == boundtype )
3020 SCIPdebugMsg(
scip,
"relax lower bound of variable <%s> from %g to %g in bounddisjunction conflict\n",
3027 SCIPdebugMsg(
scip,
"relax upper bound of variable <%s> from %g to %g in bounddisjunction conflict\n",
3038 SCIPdebugMsg(
scip,
"redundant bounddisjunction conflict due to overlapping\n");
3060 SCIPdebugMsg(
scip,
"redundant bounddisjunction conflict due to globally fulfilled literal\n");
3132 "conflict/" CONSHDLR_NAME "/continuousfrac",
"maximal percantage of continuous variables within a conflict",
3200 SCIP_Bool modifiable,
3206 SCIP_Bool removable,
3208 SCIP_Bool stickingatnode
3220 if( conshdlr ==
NULL )
3246 SCIP_CALL(
SCIPcreateCons(
scip, cons, name, conshdlr, consdata, initial, separate, enforce, check,
propagate,
3247 local, modifiable, dynamic, removable, stickingatnode) );
3302 SCIP_Bool modifiable,
3308 SCIP_Bool removable,
3310 SCIP_Bool stickingatnode
3322 if( conshdlr ==
NULL )
3332 SCIP_CALL(
SCIPcreateCons(
scip, cons, name, conshdlr, consdata, initial, separate, enforce, check,
propagate,
3333 local, modifiable, dynamic, removable, stickingatnode) );
3382 return consdata->nvars;
3403 return consdata->vars;
3424 return consdata->boundtypes;
3445 return consdata->bounds;
#define isFeasGE(scip, var, val1, val2)
static SCIP_RETCODE applyGlobalBounds(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *redundant)
static SCIP_Bool isConsViolated(SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol)
static SCIP_RETCODE consdataCreate(SCIP *scip, SCIP_CONSDATA **consdata, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds)
#define CONSHDLR_NEEDSCONS
#define CONFLICTHDLR_PRIORITY
#define isFeasLT(scip, var, val1, val2)
#define CONFLICTHDLR_NAME
static SCIP_RETCODE removeFixedVariables(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *redundant)
static SCIP_RETCODE delCoefPos(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, int pos)
#define CONSHDLR_CHECKPRIORITY
static SCIP_RETCODE analyzeConflict(SCIP *scip, SCIP_CONS *cons)
static SCIP_RETCODE upgradeCons(SCIP *scip, SCIP_CONS *cons, int *ndelconss, int *naddconss)
#define CONSHDLR_PROP_TIMING
#define CONFLICTHDLR_DESC
static void conshdlrdataFree(SCIP *scip, SCIP_CONSHDLRDATA **conshdlrdata)
static SCIP_RETCODE enforceCurrentSol(SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *cutoff, SCIP_Bool *infeasible, SCIP_Bool *reduceddom, SCIP_Bool *registeredbrcand)
#define CONSHDLR_MAXPREROUNDS
#define isFeasLE(scip, var, val1, val2)
static void consdataPrint(SCIP *scip, SCIP_CONSDATA *consdata, FILE *file, SCIP_Bool endline)
#define DEFAULT_CONTINUOUSFRAC
static SCIP_Bool isLiteralViolated(SCIP *scip, SCIP_CONSDATA *consdata, int pos)
static SCIP_RETCODE lockRounding(SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, int pos)
static SCIP_RETCODE switchWatchedvars(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, int watchedvar1, int watchedvar2)
static SCIP_RETCODE dropEvents(SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int pos, int filterpos)
#define isFeasGT(scip, var, val1, val2)
static SCIP_Bool isLiteralSatisfied(SCIP *scip, SCIP_CONSDATA *consdata, int pos)
static void consdataFree(SCIP *scip, SCIP_CONSDATA **consdata)
static SCIP_RETCODE consdataCreateRedundant(SCIP *scip, SCIP_CONSDATA **consdata, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds)
#define CONSHDLR_PROPFREQ
static SCIP_RETCODE createNAryBranch(SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol)
#define CONSHDLR_PRESOLTIMING
static SCIP_RETCODE catchEvents(SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, SCIP_EVENTHDLR *eventhdlr, int pos, int *filterpos)
#define CONSHDLR_EAGERFREQ
static SCIP_RETCODE unlockRounding(SCIP *scip, SCIP_CONS *cons, SCIP_CONSDATA *consdata, int pos)
static SCIP_RETCODE conshdlrdataCreate(SCIP *scip, SCIP_CONSHDLRDATA **conshdlrdata, SCIP_EVENTHDLR *eventhdlr)
static SCIP_RETCODE registerBranchingCandidates(SCIP *scip, SCIP_CONS *cons, SCIP_SOL *sol, SCIP_Bool *cutoff, SCIP_Bool *neednarybranch)
#define CONSHDLR_ENFOPRIORITY
static SCIP_RETCODE processWatchedVars(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_Bool *cutoff, SCIP_Bool *infeasible, SCIP_Bool *reduceddom, SCIP_Bool *mustcheck)
static SCIP_RETCODE enforceConstraint(SCIP *scip, SCIP_CONSHDLR *conshdlr, SCIP_CONS **conss, int nconss, SCIP_SOL *sol, SCIP_RESULT *result)
static SCIP_RETCODE disableCons(SCIP *scip, SCIP_CONS *cons)
static SCIP_RETCODE addCoef(SCIP *scip, SCIP_CONS *cons, SCIP_EVENTHDLR *eventhdlr, SCIP_VAR *var, SCIP_BOUNDTYPE boundtype, SCIP_Real bound, SCIP_Bool *redundant)
#define CONSHDLR_DELAYPROP
static SCIP_Bool isOverlapping(SCIP *scip, SCIP_VAR *var, SCIP_BOUNDTYPE boundtype1, SCIP_Real bound1, SCIP_BOUNDTYPE boundtype2, SCIP_Real bound2)
constraint handler for bound disjunction 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 the set partitioning / packing / covering constraints .
power and signed power expression handlers
variable expression handler
SCIP_Real * SCIPgetBoundsBounddisjunction(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPcreateConsBasicBounddisjunction(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds)
SCIP_RETCODE SCIPcreateConsBounddisjunction(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds, 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)
int SCIPgetNVarsBounddisjunction(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPcreateConsBounddisjunctionRedundant(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds, 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_BOUNDTYPE * SCIPgetBoundtypesBounddisjunction(SCIP *scip, SCIP_CONS *cons)
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 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 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 SCIPcreateConsBasicBounddisjunctionRedundant(SCIP *scip, SCIP_CONS **cons, const char *name, int nvars, SCIP_VAR **vars, SCIP_BOUNDTYPE *boundtypes, SCIP_Real *bounds)
SCIP_VAR ** SCIPgetVarsBounddisjunction(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPincludeConshdlrBounddisjunction(SCIP *scip)
SCIP_Bool SCIPisConsCompressionEnabled(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 SCIPcreateExprPow(SCIP *scip, SCIP_EXPR **expr, SCIP_EXPR *child, SCIP_Real exponent, SCIP_DECL_EXPR_OWNERCREATE((*ownercreate)), void *ownercreatedata)
SCIP_Bool SCIPisTransformed(SCIP *scip)
SCIP_Bool SCIPisStopped(SCIP *scip)
SCIP_STAGE SCIPgetStage(SCIP *scip)
SCIP_RETCODE SCIPaddCons(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPdelCons(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPdelConsNode(SCIP *scip, SCIP_NODE *node, SCIP_CONS *cons)
SCIP_RETCODE SCIPaddConsNode(SCIP *scip, SCIP_NODE *node, SCIP_CONS *cons, SCIP_NODE *validnode)
SCIP_RETCODE SCIPaddConflict(SCIP *scip, SCIP_NODE *node, SCIP_CONS *cons, SCIP_NODE *validnode, SCIP_CONFTYPE conftype, SCIP_Bool iscutoffinvolved)
void SCIPinfoMessage(SCIP *scip, FILE *file, const char *formatstr,...)
void SCIPverbMessage(SCIP *scip, SCIP_VERBLEVEL msgverblevel, FILE *file, const char *formatstr,...)
SCIP_Real SCIPrelDiff(SCIP_Real val1, SCIP_Real val2)
SCIP_RETCODE SCIPaddRealParam(SCIP *scip, const char *name, const char *desc, SCIP_Real *valueptr, SCIP_Bool isadvanced, SCIP_Real defaultvalue, SCIP_Real minvalue, SCIP_Real maxvalue, SCIP_DECL_PARAMCHGD((*paramchgd)), SCIP_PARAMDATA *paramdata)
SCIP_Real SCIPcalcNodeselPriority(SCIP *scip, SCIP_VAR *var, SCIP_BRANCHDIR branchdir, SCIP_Real targetvalue)
SCIP_RETCODE SCIPaddExternBranchCand(SCIP *scip, SCIP_VAR *var, SCIP_Real score, SCIP_Real solval)
SCIP_Real SCIPcalcChildEstimate(SCIP *scip, SCIP_VAR *var, SCIP_Real targetvalue)
SCIP_RETCODE SCIPcreateChild(SCIP *scip, SCIP_NODE **node, SCIP_Real nodeselprio, SCIP_Real estimate)
SCIP_BOUNDTYPE SCIPboundtypeOpposite(SCIP_BOUNDTYPE boundtype)
SCIP_RETCODE SCIPinitConflictAnalysis(SCIP *scip, SCIP_CONFTYPE conftype, SCIP_Bool iscutoffinvolved)
SCIP_CONFLICTHDLRDATA * SCIPconflicthdlrGetData(SCIP_CONFLICTHDLR *conflicthdlr)
const char * SCIPconflicthdlrGetName(SCIP_CONFLICTHDLR *conflicthdlr)
SCIP_RETCODE SCIPaddConflictBd(SCIP *scip, SCIP_VAR *var, SCIP_BOUNDTYPE boundtype, SCIP_BDCHGIDX *bdchgidx)
SCIP_Bool SCIPisConflictAnalysisApplicable(SCIP *scip)
SCIP_RETCODE SCIPanalyzeConflictCons(SCIP *scip, SCIP_CONS *cons, SCIP_Bool *success)
SCIP_RETCODE SCIPsetConflicthdlrFree(SCIP *scip, SCIP_CONFLICTHDLR *conflicthdlr,)
SCIP_RETCODE SCIPincludeConflicthdlrBasic(SCIP *scip, SCIP_CONFLICTHDLR **conflicthdlrptr, const char *name, const char *desc, int priority, SCIP_DECL_CONFLICTEXEC((*conflictexec)), SCIP_CONFLICTHDLRDATA *conflicthdlrdata)
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 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,)
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 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 SCIPsetConshdlrGetNVars(SCIP *scip, SCIP_CONSHDLR *conshdlr,)
SCIP_CONSDATA * SCIPconsGetData(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsDynamic(SCIP_CONS *cons)
SCIP_CONSHDLR * SCIPconsGetHdlr(SCIP_CONS *cons)
SCIP_RETCODE SCIPenableCons(SCIP *scip, SCIP_CONS *cons)
SCIP_Bool SCIPconsIsPropagationEnabled(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsInitial(SCIP_CONS *cons)
SCIP_RETCODE SCIPprintCons(SCIP *scip, SCIP_CONS *cons, FILE *file)
SCIP_RETCODE SCIPenableConsPropagation(SCIP *scip, SCIP_CONS *cons)
int SCIPconsGetValidDepth(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsChecked(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsDeleted(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsUpdatedeactivate(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)
SCIP_RETCODE SCIPdisableCons(SCIP *scip, 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_Bool SCIPconsIsStickingAtNode(SCIP_CONS *cons)
SCIP_RETCODE SCIPdisableConsPropagation(SCIP *scip, SCIP_CONS *cons)
SCIP_RETCODE SCIPaddConsAge(SCIP *scip, SCIP_CONS *cons, SCIP_Real deltaage)
SCIP_RETCODE SCIPreleaseCons(SCIP *scip, SCIP_CONS **cons)
SCIP_Bool SCIPconsIsSeparated(SCIP_CONS *cons)
SCIP_Bool SCIPconsIsRemovable(SCIP_CONS *cons)
SCIP_RETCODE SCIPincludeEventhdlrBasic(SCIP *scip, SCIP_EVENTHDLR **eventhdlrptr, const char *name, const char *desc, SCIP_DECL_EVENTEXEC((*eventexec)), SCIP_EVENTHDLRDATA *eventhdlrdata)
const char * SCIPeventhdlrGetName(SCIP_EVENTHDLR *eventhdlr)
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)
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 SCIPreallocBlockMemoryArray(scip, ptr, oldnum, newnum)
#define SCIPfreeBlockMemory(scip, ptr)
#define SCIPfreeBlockMemoryArrayNull(scip, ptr, num)
#define SCIPallocBlockMemory(scip, ptr)
#define SCIPduplicateBlockMemoryArray(scip, ptr, source, num)
SCIP_RETCODE SCIPaddNlRow(SCIP *scip, SCIP_NLROW *nlrow)
SCIP_Bool SCIPisNLPConstructed(SCIP *scip)
SCIP_RETCODE SCIPreleaseNlRow(SCIP *scip, 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)
void SCIPupdateSolConsViolation(SCIP *scip, SCIP_SOL *sol, SCIP_Real absviol, SCIP_Real relviol)
SCIP_Real SCIPgetSolVal(SCIP *scip, SCIP_SOL *sol, SCIP_VAR *var)
int SCIPgetNRuns(SCIP *scip)
SCIP_Longint SCIPgetNConflictConssApplied(SCIP *scip)
SCIP_Bool SCIPisFeasGE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
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 SCIPisLE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisInfinity(SCIP *scip, SCIP_Real val)
SCIP_Bool SCIPisFeasLT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisFeasLE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisFeasGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisEQ(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPisLT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
SCIP_Bool SCIPparseReal(SCIP *scip, const char *str, SCIP_Real *value, char **endptr)
int SCIPgetDepth(SCIP *scip)
SCIP_RETCODE SCIPtightenVarLb(SCIP *scip, SCIP_VAR *var, SCIP_Real newbound, SCIP_Bool force, SCIP_Bool *infeasible, SCIP_Bool *tightened)
SCIP_RETCODE SCIPvarGetProbvarBound(SCIP_VAR **var, SCIP_Real *bound, SCIP_BOUNDTYPE *boundtype)
SCIP_RETCODE SCIPlockVarCons(SCIP *scip, SCIP_VAR *var, SCIP_CONS *cons, SCIP_Bool lockdown, SCIP_Bool lockup)
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)
SCIP_Real SCIPvarGetUbLocal(SCIP_VAR *var)
SCIP_Bool SCIPvarIsTransformed(SCIP_VAR *var)
SCIP_RETCODE SCIPinferVarUbCons(SCIP *scip, SCIP_VAR *var, SCIP_Real newbound, SCIP_CONS *infercons, int inferinfo, SCIP_Bool force, SCIP_Bool *infeasible, SCIP_Bool *tightened)
SCIP_RETCODE SCIPchgVarUbNode(SCIP *scip, SCIP_NODE *node, SCIP_VAR *var, SCIP_Real newbound)
SCIP_VAR * SCIPvarGetProbvar(SCIP_VAR *var)
SCIP_RETCODE SCIPtightenVarUb(SCIP *scip, SCIP_VAR *var, SCIP_Real newbound, SCIP_Bool force, SCIP_Bool *infeasible, SCIP_Bool *tightened)
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)
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)
const char * SCIPvarGetName(SCIP_VAR *var)
SCIP_VAR * SCIPbdchginfoGetVar(SCIP_BDCHGINFO *bdchginfo)
SCIP_Bool SCIPvarIsIntegral(SCIP_VAR *var)
SCIP_Real SCIPcomputeVarLbGlobal(SCIP *scip, SCIP_VAR *var)
SCIP_RETCODE SCIPgetNegatedVar(SCIP *scip, SCIP_VAR *var, SCIP_VAR **negvar)
SCIP_Real SCIPvarGetLbLocal(SCIP_VAR *var)
SCIP_Real SCIPcomputeVarLbLocal(SCIP *scip, SCIP_VAR *var)
SCIP_Real SCIPvarGetLbGlobal(SCIP_VAR *var)
SCIP_RETCODE SCIPinferVarLbCons(SCIP *scip, SCIP_VAR *var, SCIP_Real newbound, SCIP_CONS *infercons, int inferinfo, SCIP_Bool force, SCIP_Bool *infeasible, SCIP_Bool *tightened)
SCIP_Real SCIPgetVarLbAtIndex(SCIP *scip, SCIP_VAR *var, SCIP_BDCHGIDX *bdchgidx, SCIP_Bool after)
SCIP_RETCODE SCIPchgVarLbNode(SCIP *scip, SCIP_NODE *node, SCIP_VAR *var, SCIP_Real newbound)
SCIP_Longint SCIPvarGetNBranchingsCurrentRun(SCIP_VAR *var, SCIP_BRANCHDIR dir)
SCIP_Real SCIPcomputeVarUbGlobal(SCIP *scip, SCIP_VAR *var)
SCIP_BOUNDTYPE SCIPbdchginfoGetBoundtype(SCIP_BDCHGINFO *bdchginfo)
SCIP_Real SCIPcomputeVarUbLocal(SCIP *scip, SCIP_VAR *var)
SCIP_Real SCIPbdchginfoGetNewbound(SCIP_BDCHGINFO *bdchginfo)
void SCIPsortPtrRealInt(void **ptrarray, SCIP_Real *realarray, int *intarray, SCIP_DECL_SORTPTRCOMP((*ptrcomp)), int len)
int SCIPsnprintf(char *t, int len, const char *s,...)
SCIP_RETCODE SCIPskipSpace(char **s)
assert(minobj< SCIPgetCutoffbound(scip))
static SCIP_Bool propagate
memory allocation routines
#define BMScopyMemoryArray(ptr, source, num)
public methods for conflict analysis handlers
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
public methods for problem variables
public methods for branching rule plugins and branching
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 event handler plugins and event handlers
public functions to work with algebraic expressions
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 querying solving statistics
public methods for the branch-and-bound tree
public methods for SCIP variables
#define SCIP_DECL_CONFLICTEXEC(x)
#define SCIP_DECL_CONFLICTFREE(x)
@ SCIP_CONFTYPE_PROPAGATION
struct SCIP_ConflicthdlrData SCIP_CONFLICTHDLRDATA
#define SCIP_DECL_CONSENFOLP(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_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_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_CONSFREE(x)
struct SCIP_EventData SCIP_EVENTDATA
#define SCIP_EVENTTYPE_UBTIGHTENED
#define SCIP_DECL_EVENTEXEC(x)
#define SCIP_EVENTTYPE_LBRELAXED
#define SCIP_EVENTTYPE_BOUNDRELAXED
#define SCIP_EVENTTYPE_BOUNDTIGHTENED
#define SCIP_EVENTTYPE_LBTIGHTENED
#define SCIP_EVENTTYPE_UBRELAXED
@ SCIP_BRANCHDIR_DOWNWARDS
enum SCIP_BoundType SCIP_BOUNDTYPE
enum SCIP_Result SCIP_RESULT
enum SCIP_Retcode SCIP_RETCODE
@ SCIP_STAGE_TRANSFORMING
@ SCIP_VARTYPE_CONTINUOUS
@ SCIP_VARSTATUS_MULTAGGR