void VACExtension::afterPreprocessing()
{
int discarded = 0;
for (unsigned int i = 0; i < wcsp->numberOfConstraints(); i++) {
Constraint *c = wcsp->getCtr(i);
if (c->connected() && (c->arity() <= 3) && !c->isSep()) {
if (c->getTightness() <
to_double(ToulBar2::relaxThreshold)) {
c->deconnect();
discarded++;
}
}
}
if (discarded)
cout << "WARNING num of discarded ctrs: " << discarded << endl;
}
/** lecture des contraintes */
int wcspdata_constraint_read (WCSP *wcsp, int nbconst, vector<INCOP::NaryVariable*>* vv, vector<INCOP::NaryConstraint*>* vct,
vector <int>* connexions, vector<Value> * tabdomaines)
{
Cost gap = wcsp->getUb()-wcsp->getLb();
int nbconst_ = 0;
for (unsigned int i =0; i< wcsp->numberOfConstraints(); i++) {
if (wcsp->getCtr(i)->connected() && !wcsp->getCtr(i)->isSep() && !wcsp->getCtr(i)->isGlobal() && wcsp->getCtr(i)->arity() <= ToulBar2::preprocessNary) {
int arity=0; int numvar=0;
arity = ((wcsp->getCtr(i)->arity()<=3)?wcsp->getCtr(i)->arity():((NaryConstraint *) wcsp->getCtr(i))->nonassigned);
INCOP::NaryConstraint* ct = new INCOP::NaryConstraint(arity);
vct->push_back(ct);
for (int j=0 ; j< wcsp->getCtr(i)->arity() ; j++) if (wcsp->getCtr(i)->getVar(j)->unassigned()) {
numvar = wcsp->getCtr(i)->getVar(j)->getCurrentVarId();
ct->constrainedvariables.push_back(numvar);
(*vv)[numvar]->constraints.push_back(ct);
}
assert(ct->constrainedvariables.size() == arity);
ct->compute_indexmultiplyers(tabdomaines);
String tuple;
Cost cost;
wcsp->getCtr(i)->firstlex();
while (wcsp->getCtr(i)->nextlex(tuple, cost)) {
ct->tuplevalues.push_back(min(gap, cost));
}
nbconst_++;
}
}
for (int i =0; i< wcsp->getElimBinOrder(); i++) {
Constraint *ctr = wcsp->getElimBinCtr(i);
if (ctr->connected() && !ctr->isSep()) {
int arity=2; int numvar=0;
INCOP::NaryConstraint* ct = new INCOP::NaryConstraint(arity);
vct->push_back(ct);
for (int j=0 ; j< arity ; j++) if (ctr->getVar(j)->unassigned()) {
numvar = ctr->getVar(j)->getCurrentVarId();
ct->constrainedvariables.push_back(numvar);
(*vv)[numvar]->constraints.push_back(ct);
}
ct->compute_indexmultiplyers(tabdomaines);
String tuple;
Cost cost;
ctr->firstlex();
while (ctr->nextlex(tuple, cost)) {
ct->tuplevalues.push_back(min(gap, cost));
}
nbconst_++;
}
}
for (int i =0; i< wcsp->getElimTernOrder(); i++) {
Constraint *ctr = wcsp->getElimTernCtr(i);
if (ctr->connected() && !ctr->isSep()) {
int arity=3; int numvar=0;
INCOP::NaryConstraint* ct = new INCOP::NaryConstraint(arity);
vct->push_back(ct);
for (int j=0 ; j< arity ; j++) if (ctr->getVar(j)->unassigned()) {
numvar = ctr->getVar(j)->getCurrentVarId();
ct->constrainedvariables.push_back(numvar);
(*vv)[numvar]->constraints.push_back(ct);
}
ct->compute_indexmultiplyers(tabdomaines);
String tuple;
Cost cost;
ctr->firstlex();
while (ctr->nextlex(tuple, cost)) {
ct->tuplevalues.push_back(min(gap, cost));
}
nbconst_++;
}
}
for (unsigned int i =0; i< wcsp->numberOfVariables(); i++) {
if (wcsp->unassigned(i) && wcsp->getMaxUnaryCost(i) > MIN_COST) {
int arity=1; int numvar=0;
INCOP::NaryConstraint* ct = new INCOP::NaryConstraint(arity);
vct->push_back(ct);
numvar = wcsp->getVar(i)->getCurrentVarId();
ct->constrainedvariables.push_back(numvar);
(*vv)[numvar]->constraints.push_back(ct);
ct->compute_indexmultiplyers(tabdomaines);
for (EnumeratedVariable::iterator it=((EnumeratedVariable *)wcsp->getVar(i))->begin() ; it != ((EnumeratedVariable *)wcsp->getVar(i))->end() ; ++it) {
ct->tuplevalues.push_back(min(gap, wcsp->getUnaryCost(i, *it)));
}
nbconst_++;
}
}
assert(nbconst_ <= nbconst);
return nbconst_;
}
