#include "sattranslator.h"
#include "tunable.h"
#include "polarityassignment.h"
-#include "orderdecompose.h"
-
-CSolver::CSolver() : unsat(false) {
- tuner = allocTuner();
- satEncoder = allocSATEncoder(this);
+#include "decomposeordertransform.h"
+#include "autotuner.h"
+#include "astops.h"
+#include "structs.h"
+#include "orderresolver.h"
+#include "integerencoding.h"
+#include "qsort.h"
+#include "preprocess.h"
+#include "serializer.h"
+#include "deserializer.h"
+#include "encodinggraph.h"
+
+CSolver::CSolver() :
+ boolTrue(BooleanEdge(new BooleanConst(true))),
+ boolFalse(boolTrue.negate()),
+ unsat(false),
+ tuner(NULL),
+ elapsedTime(0)
+{
+ satEncoder = new SATEncoder(this);
}
/** This function tears down the solver and the entire AST */
size = allElements.getSize();
for (uint i = 0; i < size; i++) {
- delete allElements.get(i);
+ Element* el = allElements.get(i);
+ delete el;
}
size = allTables.getSize();
for (uint i = 0; i < size; i++) {
delete allOrders.get(i);
}
-
size = allFunctions.getSize();
for (uint i = 0; i < size; i++) {
delete allFunctions.get(i);
}
- deleteSATEncoder(satEncoder);
- deleteTuner(tuner);
+ delete boolTrue.getBoolean();
+ delete satEncoder;
+}
+
+CSolver *CSolver::clone() {
+ CSolver *copy = new CSolver();
+ CloneMap map;
+ SetIteratorBooleanEdge *it = getConstraints();
+ while (it->hasNext()) {
+ BooleanEdge b = it->next();
+ copy->addConstraint(cloneEdge(copy, &map, b));
+ }
+ delete it;
+ return copy;
+}
+
+CSolver* CSolver::deserialize(const char * file){
+ model_print("deserializing ...\n");
+ Deserializer deserializer(file);
+ return deserializer.deserialize();
+}
+
+void CSolver::serialize() {
+ model_print("serializing ...\n");
+ printConstraints();
+ Serializer serializer("dump");
+ SetIteratorBooleanEdge *it = getConstraints();
+ while (it->hasNext()) {
+ BooleanEdge b = it->next();
+ serializeBooleanEdge(&serializer, b, true);
+ }
+ delete it;
}
Set *CSolver::createSet(VarType type, uint64_t *elements, uint numelements) {
return set;
}
+VarType CSolver::getSetVarType(Set *set) {
+ return set->getType();
+}
+
+Element *CSolver::createRangeVar(VarType type, uint64_t lowrange, uint64_t highrange) {
+ Set *s = createRangeSet(type, lowrange, highrange);
+ return getElementVar(s);
+}
+
MutableSet *CSolver::createMutableSet(VarType type) {
MutableSet *set = new MutableSet(type);
allSets.push(set);
}
uint64_t CSolver::createUniqueItem(MutableSet *set) {
- uint64_t element = set->low++;
+ uint64_t element = set->getNewUniqueItem();
set->addElementMSet(element);
return element;
}
+void CSolver::finalizeMutableSet(MutableSet *set) {
+ set->finalize();
+}
+
Element *CSolver::getElementVar(Set *set) {
Element *element = new ElementSet(set);
allElements.push(element);
return element;
}
+Set *CSolver::getElementRange (Element *element) {
+ return element->getRange();
+}
+
+
Element *CSolver::getElementConst(VarType type, uint64_t value) {
- Element *element = new ElementConst(value, type);
- allElements.push(element);
- return element;
+ uint64_t array[] = {value};
+ Set *set = new Set(type, array, 1);
+ Element *element = new ElementConst(value, set);
+ Element *e = elemMap.get(element);
+ if (e == NULL) {
+ allSets.push(set);
+ allElements.push(element);
+ elemMap.put(element, element);
+ return element;
+ } else {
+ delete set;
+ delete element;
+ return e;
+ }
}
-Boolean *CSolver::getBooleanVar(VarType type) {
- Boolean *boolean = new BooleanVar(type);
- allBooleans.push(boolean);
- return boolean;
+
+Element *CSolver::applyFunction(Function *function, Element **array, uint numArrays, BooleanEdge overflowstatus) {
+ Element *element = new ElementFunction(function,array,numArrays,overflowstatus);
+ Element *e = elemMap.get(element);
+ if (e == NULL) {
+ element->updateParents();
+ allElements.push(element);
+ elemMap.put(element, element);
+ return element;
+ } else {
+ delete element;
+ return e;
+ }
}
Function *CSolver::createFunctionOperator(ArithOp op, Set **domain, uint numDomain, Set *range,OverFlowBehavior overflowbehavior) {
return function;
}
-Element *CSolver::applyFunction(Function *function, Element **array, uint numArrays, Boolean *overflowstatus) {
- Element *element = new ElementFunction(function,array,numArrays,overflowstatus);
- allElements.push(element);
- return element;
+BooleanEdge CSolver::getBooleanVar(VarType type) {
+ Boolean *boolean = new BooleanVar(type);
+ allBooleans.push(boolean);
+ return BooleanEdge(boolean);
}
-Boolean *CSolver::applyPredicate(Predicate *predicate, Element **inputs, uint numInputs) {
- return applyPredicateTable(predicate, inputs, numInputs, NULL);
+BooleanEdge CSolver::getBooleanTrue() {
+ return boolTrue;
}
-Boolean *CSolver::applyPredicateTable(Predicate *predicate, Element **inputs, uint numInputs, Boolean *undefinedStatus) {
- Boolean *boolean = new BooleanPredicate(predicate, inputs, numInputs, undefinedStatus);
- allBooleans.push(boolean);
- return boolean;
+BooleanEdge CSolver::getBooleanFalse() {
+ return boolFalse;
}
-Boolean *CSolver::applyLogicalOperation(LogicOp op, Boolean **array, uint asize) {
- return new BooleanLogic(this, op, array, asize);
+BooleanEdge CSolver::applyPredicate(Predicate *predicate, Element **inputs, uint numInputs) {
+ return applyPredicateTable(predicate, inputs, numInputs, BooleanEdge(NULL));
}
-void CSolver::addConstraint(Boolean *constraint) {
- constraints.add(constraint);
+BooleanEdge CSolver::applyPredicateTable(Predicate *predicate, Element **inputs, uint numInputs, BooleanEdge undefinedStatus) {
+ BooleanPredicate *boolean = new BooleanPredicate(predicate, inputs, numInputs, undefinedStatus);
+ Boolean *b = boolMap.get(boolean);
+ if (b == NULL) {
+ boolean->updateParents();
+ boolMap.put(boolean, boolean);
+ allBooleans.push(boolean);
+ return BooleanEdge(boolean);
+ } else {
+ delete boolean;
+ return BooleanEdge(b);
+ }
+}
+
+bool CSolver::isTrue(BooleanEdge b) {
+ return b.isNegated() ? b->isFalse() : b->isTrue();
+}
+
+bool CSolver::isFalse(BooleanEdge b) {
+ return b.isNegated() ? b->isTrue() : b->isFalse();
+}
+
+BooleanEdge CSolver::applyLogicalOperation(LogicOp op, BooleanEdge arg1, BooleanEdge arg2) {
+ BooleanEdge array[] = {arg1, arg2};
+ return applyLogicalOperation(op, array, 2);
+}
+
+BooleanEdge CSolver::applyLogicalOperation(LogicOp op, BooleanEdge arg) {
+ BooleanEdge array[] = {arg};
+ return applyLogicalOperation(op, array, 1);
+}
+
+static int ptrcompares(const void *p1, const void *p2) {
+ uintptr_t b1 = *(uintptr_t const *) p1;
+ uintptr_t b2 = *(uintptr_t const *) p2;
+ if (b1 < b2)
+ return -1;
+ else if (b1 == b2)
+ return 0;
+ else
+ return 1;
+}
+
+BooleanEdge CSolver::rewriteLogicalOperation(LogicOp op, BooleanEdge *array, uint asize) {
+ BooleanEdge newarray[asize];
+ memcpy(newarray, array, asize * sizeof(BooleanEdge));
+ for (uint i = 0; i < asize; i++) {
+ BooleanEdge b = newarray[i];
+ if (b->type == LOGICOP) {
+ if (((BooleanLogic *) b.getBoolean())->replaced) {
+ newarray[i] = doRewrite(newarray[i]);
+ i--;//Check again
+ }
+ }
+ }
+ return applyLogicalOperation(op, newarray, asize);
+}
+
+BooleanEdge CSolver::applyLogicalOperation(LogicOp op, BooleanEdge *array, uint asize) {
+ BooleanEdge newarray[asize];
+ switch (op) {
+ case SATC_NOT: {
+ return array[0].negate();
+ }
+ case SATC_IFF: {
+ for (uint i = 0; i < 2; i++) {
+ if (isTrue(array[i])) { // It can be undefined
+ return array[1 - i];
+ } else if (isFalse(array[i])) {
+ newarray[0] = array[1 - i];
+ return applyLogicalOperation(SATC_NOT, newarray, 1);
+ } else if (array[i]->type == LOGICOP) {
+ BooleanLogic *b = (BooleanLogic *)array[i].getBoolean();
+ if (b->replaced) {
+ return rewriteLogicalOperation(op, array, asize);
+ }
+ }
+ }
+ break;
+ }
+ case SATC_OR: {
+ for (uint i = 0; i < asize; i++) {
+ newarray[i] = applyLogicalOperation(SATC_NOT, array[i]);
+ }
+ return applyLogicalOperation(SATC_NOT, applyLogicalOperation(SATC_AND, newarray, asize));
+ }
+ case SATC_AND: {
+ uint newindex = 0;
+ for (uint i = 0; i < asize; i++) {
+ BooleanEdge b = array[i];
+ if (b->type == LOGICOP) {
+ if (((BooleanLogic *)b.getBoolean())->replaced)
+ return rewriteLogicalOperation(op, array, asize);
+ }
+ if (isTrue(b))
+ continue;
+ else if (isFalse(b)) {
+ return boolFalse;
+ } else
+ newarray[newindex++] = b;
+ }
+ if (newindex == 0) {
+ return boolTrue;
+ } else if (newindex == 1) {
+ return newarray[0];
+ } else {
+ bsdqsort(newarray, newindex, sizeof(BooleanEdge), ptrcompares);
+ array = newarray;
+ asize = newindex;
+ }
+ break;
+ }
+ case SATC_XOR: {
+ //handle by translation
+ return applyLogicalOperation(SATC_NOT, applyLogicalOperation(SATC_IFF, array, asize));
+ }
+ case SATC_IMPLIES: {
+ //handle by translation
+ return applyLogicalOperation(SATC_OR, applyLogicalOperation(SATC_NOT, array[0]), array[1]);
+ }
+ }
+
+ ASSERT(asize != 0);
+ Boolean *boolean = new BooleanLogic(this, op, array, asize);
+ Boolean *b = boolMap.get(boolean);
+ if (b == NULL) {
+ boolean->updateParents();
+ boolMap.put(boolean, boolean);
+ allBooleans.push(boolean);
+ return BooleanEdge(boolean);
+ } else {
+ delete boolean;
+ return BooleanEdge(b);
+ }
+}
+
+BooleanEdge CSolver::orderConstraint(Order *order, uint64_t first, uint64_t second) {
+ // ASSERT(first != second);
+ if (first == second)
+ return getBooleanFalse();
+
+ bool negate = false;
+ if (order->type == SATC_TOTAL) {
+ if (first > second) {
+ uint64_t tmp = first;
+ first = second;
+ second = tmp;
+ negate = true;
+ }
+ }
+ Boolean *constraint = new BooleanOrder(order, first, second);
+ Boolean *b = boolMap.get(constraint);
+
+ if (b == NULL) {
+ allBooleans.push(constraint);
+ boolMap.put(constraint, constraint);
+ constraint->updateParents();
+ } else {
+ delete constraint;
+ constraint = b;
+ }
+
+ BooleanEdge be = BooleanEdge(constraint);
+ return negate ? be.negate() : be;
+}
+
+void CSolver::addConstraint(BooleanEdge constraint) {
+#ifdef TRACE_DEBUG
+ model_println("****New Constraint******");
+#endif
+ if(constraint.isNegated())
+ model_print("!");
+ constraint.getBoolean()->print();
+ if (isTrue(constraint))
+ return;
+ else if (isFalse(constraint)) {
+ int t = 0;
+ setUnSAT();
+ }
+ else {
+ if (constraint->type == LOGICOP) {
+ BooleanLogic *b = (BooleanLogic *) constraint.getBoolean();
+ if (!constraint.isNegated()) {
+ if (b->op == SATC_AND) {
+ for (uint i = 0; i < b->inputs.getSize(); i++) {
+ addConstraint(b->inputs.get(i));
+ }
+ return;
+ }
+ }
+ if (b->replaced) {
+ addConstraint(doRewrite(constraint));
+ return;
+ }
+ }
+ constraints.add(constraint);
+ Boolean *ptr = constraint.getBoolean();
+
+ if (ptr->boolVal == BV_UNSAT) {
+ setUnSAT();
+ }
+
+ replaceBooleanWithTrueNoRemove(constraint);
+ constraint->parents.clear();
+ }
}
Order *CSolver::createOrder(OrderType type, Set *set) {
Order *order = new Order(type, set);
allOrders.push(order);
+ activeOrders.add(order);
return order;
}
-Boolean *CSolver::orderConstraint(Order *order, uint64_t first, uint64_t second) {
- Boolean *constraint = new BooleanOrder(order, first, second);
- allBooleans.push(constraint);
- return constraint;
-}
+int CSolver::solve() {
+ bool deleteTuner = false;
+ if (tuner == NULL) {
+ tuner = new DefaultTuner();
+ deleteTuner = true;
+ }
-int CSolver::startEncoding() {
+ long long startTime = getTimeNano();
computePolarities(this);
- orderAnalysis(this);
+
+ Preprocess pp(this);
+ pp.doTransform();
+
+ DecomposeOrderTransform dot(this);
+ dot.doTransform();
+
+ //IntegerEncodingTransform iet(this);
+ //iet.doTransform();
+
+ EncodingGraph eg(this);
+ eg.buildGraph();
+ eg.encode();
+// printConstraints();
naiveEncodingDecision(this);
- encodeAllSATEncoder(this, satEncoder);
- int result = solveCNF(satEncoder->cnf);
- model_print("sat_solver's result:%d\tsolutionSize=%d\n", result, satEncoder->cnf->solver->solutionsize);
- for (int i = 1; i <= satEncoder->cnf->solver->solutionsize; i++) {
- model_print("%d, ", satEncoder->cnf->solver->solution[i]);
+ satEncoder->encodeAllSATEncoder(this);
+ model_print("Is problem UNSAT after encoding: %d\n", unsat);
+ int result = unsat ? IS_UNSAT : satEncoder->solve();
+ model_print("Result Computed in CSolver: %d\n", result);
+ long long finishTime = getTimeNano();
+ elapsedTime = finishTime - startTime;
+ if (deleteTuner) {
+ delete tuner;
+ tuner = NULL;
}
- model_print("\n");
return result;
}
+void CSolver::printConstraints() {
+ SetIteratorBooleanEdge *it = getConstraints();
+ while (it->hasNext()) {
+ BooleanEdge b = it->next();
+ if (b.isNegated())
+ model_print("!");
+ b->print();
+ model_print("\n");
+ }
+ delete it;
+}
+
+void CSolver::printConstraint(BooleanEdge b) {
+ if (b.isNegated())
+ model_print("!");
+ b->print();
+ model_print("\n");
+}
+
uint64_t CSolver::getElementValue(Element *element) {
- switch (GETELEMENTTYPE(element)) {
+ switch (element->type) {
case ELEMSET:
case ELEMCONST:
case ELEMFUNCRETURN:
exit(-1);
}
-bool CSolver::getBooleanValue(Boolean *boolean) {
- switch (GETBOOLEANTYPE(boolean)) {
+bool CSolver::getBooleanValue(BooleanEdge bedge) {
+ Boolean *boolean = bedge.getBoolean();
+ switch (boolean->type) {
case BOOLEANVAR:
return getBooleanVariableValueSATTranslator(this, boolean);
default:
exit(-1);
}
-HappenedBefore CSolver::getOrderConstraintValue(Order *order, uint64_t first, uint64_t second) {
- return getOrderConstraintValueSATTranslator(this, order, first, second);
+bool CSolver::getOrderConstraintValue(Order *order, uint64_t first, uint64_t second) {
+ return order->encoding.resolver->resolveOrder(first, second);
}
+long long CSolver::getEncodeTime() { return satEncoder->getEncodeTime(); }
+
+long long CSolver::getSolveTime() { return satEncoder->getSolveTime(); }
+
+void CSolver::autoTune(uint budget) {
+ AutoTuner *autotuner = new AutoTuner(budget);
+ autotuner->addProblem(this);
+ autotuner->tune();
+ delete autotuner;
+}
projects / satune.git / blobdiff