bool FSVarStat::contradiction(FSVarStat *fsVarStat) const
{
STATUS status = fsVarStat->status();
switch (status)
{
case Set:
case Fixed:
return contradiction(status, fsVarStat->value());
default:
return contradiction(status);
}
}
Domain MCSat::applyUP(const Domain& d) {
Domain reduced;
try {
reduced = performUnitPropagation(d);
} catch (contradiction& c) {
// rewrite error message
throw contradiction("Contradiction found in MCSat::run() when running unit prop()");
}
// default model is guaranteed to satisfy the facts
Model m = reduced.defaultModel();
// check to make sure hard clauses are satisfied
std::vector<ELSentence> hardClauses;
std::remove_copy_if(reduced.formulas_begin(), reduced.formulas_end(), std::back_inserter(hardClauses), std::not1(IsHardClausePred()));
for (std::vector<ELSentence>::const_iterator it = hardClauses.begin(); it != hardClauses.end(); it++) {
if (!it->fullySatisfied(m, reduced)) {
throw contradiction("Contradiction found in MCSat::run() when verifying hard clauses are satisfied");
}
}
return reduced;
}
