Found bug... Don't update parent's list until we know we aren't going to be freed
[satune.git] / src / Backend / satorderencoder.cc
index 7cbcd7f5eaed8cc805e49dbc16c31e018f2bebd2..b977efa782c4ea963f03a4a3da6bbeac80b8da01 100644 (file)
@@ -6,86 +6,40 @@
 #include "orderpair.h"
 #include "set.h"
 #include "tunable.h"
-#include "orderencoder.h"
+#include "orderanalysis.h"
 #include "ordergraph.h"
 #include "orderedge.h"
 #include "element.h"
 #include "predicate.h"
 #include "orderelement.h"
+#include "orderpairresolver.h"
 
-Edge encodeOrderSATEncoder(SATEncoder *This, BooleanOrder *constraint) {
-       if(constraint->order->order.type == INTEGERENCODING){
-               return orderIntegerEncodingSATEncoder(This, constraint);
-       }
+Edge SATEncoder::encodeOrderSATEncoder(BooleanOrder *constraint) {
        switch ( constraint->order->type) {
-       case PARTIAL:
-               return encodePartialOrderSATEncoder(This, constraint);
-       case TOTAL:
-               return encodeTotalOrderSATEncoder(This, constraint);
+       case SATC_PARTIAL:
+               return encodePartialOrderSATEncoder(constraint);
+       case SATC_TOTAL:
+               return encodeTotalOrderSATEncoder(constraint);
        default:
                ASSERT(0);
        }
        return E_BOGUS;
 }
 
-Edge orderIntegerEncodingSATEncoder(SATEncoder *This, BooleanOrder *boolOrder){
-       if(boolOrder->order->graph == NULL){
-               bool doOptOrderStructure=GETVARTUNABLE(This->solver->tuner, boolOrder->order->type,
-                       OPTIMIZEORDERSTRUCTURE, &onoff);
-               if (doOptOrderStructure ) {
-                       boolOrder->order->graph = buildMustOrderGraph(boolOrder->order);
-                       reachMustAnalysis(This->solver, boolOrder->order->graph, true);
-               }
-       }
-       Order* order = boolOrder->order;
-       Edge gvalue = inferOrderConstraintFromGraph(order, boolOrder->first, boolOrder->second);
-       if(!edgeIsNull(gvalue))
-               return gvalue;
-       
-       if (boolOrder->order->elementTable == NULL) {
-               boolOrder->order->initializeOrderElementsHashTable();
-       }
-       //getting two elements and using LT predicate ...
-       Element* elem1 = getOrderIntegerElement(This, order, boolOrder->first);
-       ElementEncoding *encoding = getElementEncoding(elem1);
-       if (getElementEncodingType(encoding) == ELEM_UNASSIGNED) {
-               setElementEncodingType(encoding, BINARYINDEX);
-               encodingArrayInitialization(encoding);
-       }
-       Element* elem2 = getOrderIntegerElement(This, order, boolOrder->second);
-       encoding = getElementEncoding(elem2);
-       if (getElementEncodingType(encoding) == ELEM_UNASSIGNED) {
-               setElementEncodingType(encoding, BINARYINDEX);
-               encodingArrayInitialization(encoding);
-       }
-       Set * sarray[]={order->set, order->set};
-       Predicate *predicate =new PredicateOperator(LT, sarray, 2);
-       Element * parray[]={elem1, elem2};
-       BooleanPredicate * boolean=new BooleanPredicate(predicate, parray, 2, NULL);
-       setFunctionEncodingType(boolean->getFunctionEncoding(), CIRCUIT);
-       {//Adding new elements and boolean/predicate to solver regarding memory management
-               This->solver->allBooleans.push(boolean);
-               This->solver->allPredicates.push(predicate);
-               This->solver->allElements.push(elem1);
-               This->solver->allElements.push(elem2);
-       }
-       return encodeConstraintSATEncoder(This, boolean);
-}
-
-Edge inferOrderConstraintFromGraph(Order* order, uint64_t _first, uint64_t _second){
+Edge SATEncoder::inferOrderConstraintFromGraph(Order *order, uint64_t _first, uint64_t _second) {
        if (order->graph != NULL) {
-               OrderGraph *graph=order->graph;
-               OrderNode *first=lookupOrderNodeFromOrderGraph(graph, _first);
-               OrderNode *second=lookupOrderNodeFromOrderGraph(graph, _second);
+               OrderGraph *graph = order->graph;
+               OrderNode *first = graph->lookupOrderNodeFromOrderGraph(_first);
+               OrderNode *second = graph->lookupOrderNodeFromOrderGraph(_second);
                if ((first != NULL) && (second != NULL)) {
-                       OrderEdge *edge=lookupOrderEdgeFromOrderGraph(graph, first, second);
+                       OrderEdge *edge = graph->lookupOrderEdgeFromOrderGraph(first, second);
                        if (edge != NULL) {
                                if (edge->mustPos)
                                        return E_True;
                                else if (edge->mustNeg)
                                        return E_False;
                        }
-                       OrderEdge *invedge=getOrderEdgeFromOrderGraph(graph, second, first);
+                       OrderEdge *invedge = graph->lookupOrderEdgeFromOrderGraph(second, first);
                        if (invedge != NULL) {
                                if (invedge->mustPos)
                                        return E_False;
@@ -97,27 +51,12 @@ Edge inferOrderConstraintFromGraph(Order* order, uint64_t _first, uint64_t _seco
        return E_NULL;
 }
 
-Element* getOrderIntegerElement(SATEncoder* This,Order *order, uint64_t item) {
-       HashSetOrderElement* eset = order->elementTable;
-       OrderElement oelement ={item, NULL};
-       if( !eset->contains(&oelement)){
-               Element* elem = new ElementSet(order->set);
-               ElementEncoding* encoding = getElementEncoding(elem);
-               setElementEncodingType(encoding, BINARYINDEX);
-               encodingArrayInitialization(encoding);
-               encodeElementSATEncoder(This, elem);
-               eset->add(allocOrderElement(item, elem));
-               return elem;
-       } else
-               return eset->get(&oelement)->elem;
-}
-
-Edge getPairConstraint(SATEncoder *This, Order *order, OrderPair *pair) {
+Edge SATEncoder::getPairConstraint(Order *order, OrderPair *pair) {
        Edge gvalue = inferOrderConstraintFromGraph(order, pair->first, pair->second);
-       if(!edgeIsNull(gvalue))
+       if (!edgeIsNull(gvalue))
                return gvalue;
-       
-       HashTableOrderPair *table = order->orderPairTable;
+
+       HashtableOrderPair *table = order->orderPairTable;
        bool negate = false;
        OrderPair flipped;
        if (pair->first < pair->second) {
@@ -128,58 +67,60 @@ Edge getPairConstraint(SATEncoder *This, Order *order, OrderPair *pair) {
        }
        Edge constraint;
        if (!(table->contains(pair))) {
-               constraint = getNewVarSATEncoder(This);
-               OrderPair *paircopy = allocOrderPair(pair->first, pair->second, constraint);
+               constraint = getNewVarSATEncoder();
+               OrderPair *paircopy = new OrderPair(pair->first, pair->second, constraint);
                table->put(paircopy, paircopy);
        } else
                constraint = table->get(pair)->constraint;
-       
+
        return negate ? constraintNegate(constraint) : constraint;
 }
 
-Edge encodeTotalOrderSATEncoder(SATEncoder *This, BooleanOrder *boolOrder) {
-       ASSERT(boolOrder->order->type == TOTAL);
+Edge SATEncoder::encodeTotalOrderSATEncoder(BooleanOrder *boolOrder) {
+       ASSERT(boolOrder->order->type == SATC_TOTAL);
        if (boolOrder->order->orderPairTable == NULL) {
-               boolOrder->order->initializeOrderHashTable();
-               bool doOptOrderStructure=GETVARTUNABLE(This->solver->tuner, boolOrder->order->type, OPTIMIZEORDERSTRUCTURE, &onoff);
+               //This is pairwised encoding ...
+               boolOrder->order->setOrderResolver(new OrderPairResolver(solver, boolOrder->order));
+               boolOrder->order->initializeOrderHashtable();
+               bool doOptOrderStructure = GETVARTUNABLE(solver->getTuner(), boolOrder->order->type, OPTIMIZEORDERSTRUCTURE, &onoff);
                if (doOptOrderStructure) {
                        boolOrder->order->graph = buildMustOrderGraph(boolOrder->order);
-                       reachMustAnalysis(This->solver, boolOrder->order->graph, true);
+                       reachMustAnalysis(solver, boolOrder->order->graph, true);
                }
-               createAllTotalOrderConstraintsSATEncoder(This, boolOrder->order);
+               createAllTotalOrderConstraintsSATEncoder(boolOrder->order);
        }
-       OrderPair pair = {boolOrder->first, boolOrder->second, E_NULL};
-       Edge constraint = getPairConstraint(This, boolOrder->order, &pair);
+       OrderPair pair(boolOrder->first, boolOrder->second, E_NULL);
+       Edge constraint = getPairConstraint(boolOrder->order, &pair);
        return constraint;
 }
 
 
-void createAllTotalOrderConstraintsSATEncoder(SATEncoder *This, Order *order) {
-#ifdef TRACE_DEBUG
+void SATEncoder::createAllTotalOrderConstraintsSATEncoder(Order *order) {
+#ifdef CONFIG_DEBUG
        model_print("in total order ...\n");
 #endif
-       ASSERT(order->type == TOTAL);
-       Vector<uint64_t> *mems = order->set->members;
-       uint size = mems->getSize();
+       ASSERT(order->type == SATC_TOTAL);
+       Set *set = order->set;
+       uint size = order->set->getSize();
        for (uint i = 0; i < size; i++) {
-               uint64_t valueI = mems->get(i);
+               uint64_t valueI = set->getMemberAt(i);
                for (uint j = i + 1; j < size; j++) {
-                       uint64_t valueJ = mems->get(j);
-                       OrderPair pairIJ = {valueI, valueJ};
-                       Edge constIJ = getPairConstraint(This, order, &pairIJ);
+                       uint64_t valueJ = set->getMemberAt(j);
+                       OrderPair pairIJ(valueI, valueJ, E_NULL);
+                       Edge constIJ = getPairConstraint(order, &pairIJ);
                        for (uint k = j + 1; k < size; k++) {
-                               uint64_t valueK = mems->get(k);
-                               OrderPair pairJK = {valueJ, valueK};
-                               OrderPair pairIK = {valueI, valueK};
-                               Edge constIK = getPairConstraint(This, order, &pairIK);
-                               Edge constJK = getPairConstraint(This, order, &pairJK);
-                               addConstraintCNF(This->cnf, generateTransOrderConstraintSATEncoder(This, constIJ, constJK, constIK));
+                               uint64_t valueK = set->getMemberAt(k);
+                               OrderPair pairJK(valueJ, valueK, E_NULL);
+                               OrderPair pairIK(valueI, valueK, E_NULL);
+                               Edge constIK = getPairConstraint(order, &pairIK);
+                               Edge constJK = getPairConstraint(order, &pairJK);
+                               addConstraintCNF(cnf, generateTransOrderConstraintSATEncoder(constIJ, constJK, constIK));
                        }
                }
        }
 }
 
-Edge getOrderConstraint(HashTableOrderPair *table, OrderPair *pair) {
+Edge getOrderConstraint(HashtableOrderPair *table, OrderPair *pair) {
        ASSERT(pair->first != pair->second);
        bool negate = false;
        OrderPair flipped;
@@ -197,15 +138,15 @@ Edge getOrderConstraint(HashTableOrderPair *table, OrderPair *pair) {
        return negate ? constraintNegate(constraint) : constraint;
 }
 
-Edge generateTransOrderConstraintSATEncoder(SATEncoder *This, Edge constIJ,Edge constJK,Edge constIK) {
+Edge SATEncoder::generateTransOrderConstraintSATEncoder(Edge constIJ,Edge constJK,Edge constIK) {
        Edge carray[] = {constIJ, constJK, constraintNegate(constIK)};
-       Edge loop1 = constraintOR(This->cnf, 3, carray);
+       Edge loop1 = constraintOR(cnf, 3, carray);
        Edge carray2[] = {constraintNegate(constIJ), constraintNegate(constJK), constIK};
-       Edge loop2 = constraintOR(This->cnf, 3, carray2 );
-       return constraintAND2(This->cnf, loop1, loop2);
+       Edge loop2 = constraintOR(cnf, 3, carray2 );
+       return constraintAND2(cnf, loop1, loop2);
 }
 
-Edge encodePartialOrderSATEncoder(SATEncoder *This, BooleanOrder *constraint) {
-       ASSERT(constraint->order->type == PARTIAL);
+Edge SATEncoder::encodePartialOrderSATEncoder(BooleanOrder *constraint) {
+       ASSERT(constraint->order->type == SATC_PARTIAL);
        return E_BOGUS;
 }