bool CexCachingSolver::getAssignment(const Query& query, Assignment *&result) {
KeyType key;
if (lookupAssignment(query, key, result))
return true;
std::vector<const Array*> objects;
findSymbolicObjects(key.begin(), key.end(), objects);
std::vector< std::vector<unsigned char> > values;
bool hasSolution;
if (!solver->impl->computeInitialValues(query, objects, values,
hasSolution))
return false;
AssignmentCacheWrapper *bindingWrapper;
Assignment *binding;
if (hasSolution) {
binding = new Assignment(objects, values);
// Memoize the result.
std::pair<assignmentsTable_ty::iterator, bool>
res = assignmentsTable.insert(binding);
if (!res.second) {
delete binding;
binding = *res.first;
}
if (DebugCexCacheCheckBinding)
if (!binding->satisfies(key.begin(), key.end())) {
query.dump();
binding->dump();
klee_error("Generated assignment doesn't match query");
}
bindingWrapper = new AssignmentCacheWrapper(binding);
} else {
unsatCore = solver->impl->getUnsatCore();
binding = (Assignment *) 0;
bindingWrapper = new AssignmentCacheWrapper(unsatCore);
}
result = binding;
cache.insert(key, bindingWrapper);
return true;
}
bool CexCachingSolver::getAssignment(const Query& query, Assignment *&result) {
KeyType key;
if (lookupAssignment(query, key, result))
return true;
std::vector<const Array*> objects;
findSymbolicObjects(key.begin(), key.end(), objects);
std::vector< std::vector<unsigned char> > values;
bool hasSolution;
if (!solver->impl->computeInitialValues(query, objects, values,
hasSolution))
return false;
Assignment *binding;
if (hasSolution) {
binding = new Assignment(objects, values);
// Memoize the result.
std::pair<assignmentsTable_ty::iterator, bool>
res = assignmentsTable.insert(binding);
if (!res.second) {
delete binding;
binding = *res.first;
}
if (DebugCexCacheCheckBinding)
assert(binding->satisfies(key.begin(), key.end()));
} else {
binding = (Assignment*) 0;
}
result = binding;
cache.insert(key, binding);
return true;
}