return E_BOGUS;
}
-Edge encodeEnumTablePredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint){
- VectorTableEntry* entries = &(((PredicateTable*)constraint->predicate)->table->entries);
- FunctionEncodingType encType = constraint->encoding.type;
- ArrayElement* inputs = &constraint->inputs;
- uint inputNum =getSizeArrayElement(inputs);
- //Encode all the inputs first ...
- for(uint i=0; i<inputNum; i++){
- encodeElementSATEncoder(This, getArrayElement(inputs, i));
- }
-
- //WARNING: THIS ASSUMES PREDICATE TABLE IS COMPLETE...SEEMS UNLIKELY TO BE SAFE IN MANY CASES...
- //WONDER WHAT BEST WAY TO HANDLE THIS IS...
-
- uint size = getSizeVectorTableEntry(entries);
- bool generateNegation = encType == ENUMERATEIMPLICATIONSNEGATE;
- Edge constraints[size];
- for(uint i=0; i<size; i++){
- TableEntry* entry = getVectorTableEntry(entries, i);
- if(generateNegation == entry->output) {
- //Skip the irrelevant entries
- continue;
- }
- Edge carray[inputNum];
- for(uint j=0; j<inputNum; j++){
- Element* el = getArrayElement(inputs, j);
- carray[j] = getElementValueConstraint(This, el, entry->inputs[j]);
- }
- constraints[i]=constraintAND(This->cnf, inputNum, carray);
- }
- Edge result=constraintOR(This->cnf, size, constraints);
-
- return generateNegation ? result: constraintNegate(result);
-}
-
-Edge encodeOperatorPredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint) {
- switch(constraint->encoding.type){
- case ENUMERATEIMPLICATIONS:
- return encodeEnumOperatorPredicateSATEncoder(This, constraint);
- case CIRCUIT:
- ASSERT(0);
- break;
- default:
- ASSERT(0);
- }
- return E_BOGUS;
-}
-
-Edge encodeEnumOperatorPredicateSATEncoder(SATEncoder * This, BooleanPredicate * constraint) {
- PredicateOperator* predicate = (PredicateOperator*)constraint->predicate;
- uint numDomains=getSizeArraySet(&predicate->domains);
-
- FunctionEncodingType encType = constraint->encoding.type;
- bool generateNegation = encType == ENUMERATEIMPLICATIONSNEGATE;
-
- /* Call base encoders for children */
- for(uint i=0;i<numDomains;i++) {
- Element *elem = getArrayElement( &constraint->inputs, i);
- encodeElementSATEncoder(This, elem);
- }
- VectorEdge * clauses=allocDefVectorEdge(); // Setup array of clauses
-
- uint indices[numDomains]; //setup indices
- bzero(indices, sizeof(uint)*numDomains);
-
- uint64_t vals[numDomains]; //setup value array
- for(uint i=0;i<numDomains; i++) {
- Set * set=getArraySet(&predicate->domains, i);
- vals[i]=getSetElement(set, indices[i]);
- }
-
- bool notfinished=true;
- while(notfinished) {
- Edge carray[numDomains];
-
- if (evalPredicateOperator(predicate, vals) ^ generateNegation) {
- //Include this in the set of terms
- for(uint i=0;i<numDomains;i++) {
- Element * elem = getArrayElement(&constraint->inputs, i);
- carray[i] = getElementValueConstraint(This, elem, vals[i]);
- }
- pushVectorEdge(clauses, constraintAND(This->cnf, numDomains, carray));
- }
-
- notfinished=false;
- for(uint i=0;i<numDomains; i++) {
- uint index=++indices[i];
- Set * set=getArraySet(&predicate->domains, i);
-
- if (index < getSetSize(set)) {
- vals[i]=getSetElement(set, index);
- notfinished=true;
- break;
- } else {
- indices[i]=0;
- vals[i]=getSetElement(set, 0);
- }
- }
- }
-
- Edge cor=constraintOR(This->cnf, getSizeVectorEdge(clauses), exposeArrayEdge(clauses));
- deleteVectorEdge(clauses);
- return generateNegation ? cor : constraintNegate(cor);
-}
-
void encodeElementSATEncoder(SATEncoder* encoder, Element *This){
switch( GETELEMENTTYPE(This) ){
case ELEMFUNCRETURN:
}
return E_BOGUS;
}
-
-Edge encodeOperatorElementFunctionSATEncoder(SATEncoder* This, ElementFunction* func) {
- FunctionOperator * function = (FunctionOperator *) func->function;
- uint numDomains=getSizeArrayElement(&func->inputs);
-
- /* Call base encoders for children */
- for(uint i=0;i<numDomains;i++) {
- Element *elem = getArrayElement( &func->inputs, i);
- encodeElementSATEncoder(This, elem);
- }
-
- VectorEdge * clauses=allocDefVectorEdge(); // Setup array of clauses
-
- uint indices[numDomains]; //setup indices
- bzero(indices, sizeof(uint)*numDomains);
-
- uint64_t vals[numDomains]; //setup value array
- for(uint i=0;i<numDomains; i++) {
- Set * set=getElementSet(getArrayElement(&func->inputs, i));
- vals[i]=getSetElement(set, indices[i]);
- }
-
- Edge overFlowConstraint = ((BooleanVar*) func->overflowstatus)->var;
-
- bool notfinished=true;
- while(notfinished) {
- Edge carray[numDomains+2];
-
- uint64_t result=applyFunctionOperator(function, numDomains, vals);
- bool isInRange = isInRangeFunction((FunctionOperator*)func->function, result);
- bool needClause = isInRange;
- if (function->overflowbehavior == OVERFLOWSETSFLAG || function->overflowbehavior == FLAGIFFOVERFLOW) {
- needClause=true;
- }
-
- if (needClause) {
- //Include this in the set of terms
- for(uint i=0;i<numDomains;i++) {
- Element * elem = getArrayElement(&func->inputs, i);
- carray[i] = getElementValueConstraint(This, elem, vals[i]);
- }
- if (isInRange) {
- carray[numDomains] = getElementValueConstraint(This, &func->base, result);
- }
-
- Edge clause;
- switch(function->overflowbehavior) {
- case IGNORE:
- case NOOVERFLOW:
- case WRAPAROUND: {
- clause=constraintAND(This->cnf, numDomains+1, carray);
- break;
- }
- case FLAGFORCESOVERFLOW: {
- carray[numDomains+1]=constraintNegate(overFlowConstraint);
- clause=constraintAND(This->cnf, numDomains+2, carray);
- break;
- }
- case OVERFLOWSETSFLAG: {
- if (isInRange) {
- clause=constraintAND(This->cnf, numDomains+1, carray);
- } else {
- carray[numDomains+1]=overFlowConstraint;
- clause=constraintAND(This->cnf, numDomains+1, carray);
- }
- break;
- }
- case FLAGIFFOVERFLOW: {
- if (isInRange) {
- carray[numDomains+1]=constraintNegate(overFlowConstraint);
- clause=constraintAND(This->cnf, numDomains+2, carray);
- } else {
- carray[numDomains+1]=overFlowConstraint;
- clause=constraintAND(This->cnf, numDomains+1, carray);
- }
- break;
- }
- default:
- ASSERT(0);
- }
- pushVectorEdge(clauses, clause);
- }
-
- notfinished=false;
- for(uint i=0;i<numDomains; i++) {
- uint index=++indices[i];
- Set * set=getElementSet(getArrayElement(&func->inputs, i));
-
- if (index < getSetSize(set)) {
- vals[i]=getSetElement(set, index);
- notfinished=true;
- break;
- } else {
- indices[i]=0;
- vals[i]=getSetElement(set, 0);
- }
- }
- }
-
- Edge cor=constraintOR(This->cnf, getSizeVectorEdge(clauses), exposeArrayEdge(clauses));
- deleteVectorEdge(clauses);
- return cor;
-}
-
-Edge encodeEnumTableElemFunctionSATEncoder(SATEncoder* encoder, ElementFunction* This){
- //FIXME: HANDLE UNDEFINED BEHAVIORS
- ASSERT(GETFUNCTIONTYPE(This->function)==TABLEFUNC);
- ArrayElement* elements= &This->inputs;
- Table* table = ((FunctionTable*) (This->function))->table;
- uint size = getSizeVectorTableEntry(&table->entries);
- Edge constraints[size]; //FIXME: should add a space for the case that didn't match any entries
- for(uint i=0; i<size; i++) {
- TableEntry* entry = getVectorTableEntry(&table->entries, i);
- uint inputNum = getSizeArrayElement(elements);
- Edge carray[inputNum];
- for(uint j=0; j<inputNum; j++){
- Element* el= getArrayElement(elements, j);
- carray[j] = getElementValueConstraint(encoder, el, entry->inputs[j]);
- }
- Edge output = getElementValueConstraint(encoder, (Element*)This, entry->output);
- Edge row= constraintIMPLIES(encoder->cnf, constraintAND(encoder->cnf, inputNum, carray), output);
- constraints[i]=row;
- }
- return constraintOR(encoder->cnf, size, constraints);
-}
projects / satune.git / blobdiff