Merging + fixing memory bugs

[satune.git] / src / Backend / satencoder.cc

diff --git a/src/Backend/satencoder.cc b/src/Backend/satencoder.cc
index 8dab3ab9d089936eb0ae7a8c5ff1accfe78c000e..2e09491a88262617f4c0fbe1bce71508fa5efd53 100644 (file)
--- a/src/Backend/satencoder.cc
+++ b/src/Backend/satencoder.cc
@@ -11,11 +11,12 @@
 #include "order.h"
 #include "predicate.h"
 #include "set.h"
+#include "tunable.h"
 
 SATEncoder::SATEncoder(CSolver *_solver) :
        cnf(createCNF()),
        solver(_solver),
-  vector(allocDefVectorEdge()) {
+       vector(allocDefVectorEdge()) {
 }
 
 SATEncoder::~SATEncoder() {
@@ -28,16 +29,29 @@ void SATEncoder::resetSATEncoder() {
        booledgeMap.reset();
 }
 
-int SATEncoder::solve() {
+int SATEncoder::solve(long timeout) {
+       cnf->solver->timeout = timeout;
+       long long startTime = getTimeNano();
+       finishedClauses(cnf->solver);
+       cnf->encodeTime = getTimeNano() - startTime;
+       if (solver->isIncrementalMode()) {
+               solver->freezeElementsVariables();
+       }
        return solveCNF(cnf);
 }
 
 void SATEncoder::encodeAllSATEncoder(CSolver *csolver) {
+       if (csolver->isUnSAT()) {
+               return;
+       }
        SetIteratorBooleanEdge *iterator = csolver->getConstraints();
        while (iterator->hasNext()) {
                BooleanEdge constraint = iterator->next();
-               Edge c = encodeConstraintSATEncoder(constraint);
-               addConstraintCNF(cnf, c);
+               if (!csolver->isConstraintEncoded(constraint)) {
+                       Edge c = encodeConstraintSATEncoder(constraint);
+                       addConstraintCNF(cnf, c);
+                       csolver->addEncodedConstraint(constraint);
+               }
        }
        delete iterator;
 }
@@ -73,7 +87,8 @@ Edge SATEncoder::encodeConstraintSATEncoder(BooleanEdge c) {
        }
        Polarity p = constraint->polarity;
        uint pSize = constraint->parents.getSize();
-       if ((pSize > 1 && p != P_BOTHTRUEFALSE ) || pSize > 2) {
+
+       if ( !edgeIsVarConst(result) && pSize > (uint)solver->getTuner()->getTunable(PROXYVARIABLE, &proxyparameter) ) {
                Edge e = getNewVarSATEncoder();
                generateProxy(cnf, result, e, p);
                booledgeMap.put(constraint, e.node_ptr);