void
V3VrfBase::checkCommonProof(const uint32_t& p, const V3NetTable& invList, const bool& checkInitial) {
assert (_result[p].isInv());
// Collect Unsolved Properties
V3UI32Vec unsolved; unsolved.clear(); unsolved.reserve(_result.size());
for (uint32_t i = 0; i < _result.size(); ++i)
if (!(_result[i].isCex() || _result[i].isInv())) unsolved.push_back(i);
// Check Same Property
const V3NetId pId = _vrfNtk->getOutput(p);
for (uint32_t i = 0; i < unsolved.size(); ++i) {
if (pId != _vrfNtk->getOutput(unsolved[i])) continue;
_result[unsolved[i]].setIndInv(_vrfNtk);
unsolved.erase(unsolved.begin() + i); --i;
}
if (!unsolved.size()) return; assert (!_constr.size());
// Create Solver
V3SvrBase* const solver = allocSolver(getSolver(), _vrfNtk); assert (solver);
V3SvrDataVec formula; formula.clear(); V3NetId id; uint32_t d = 0;
// Set Inductive Invariant
for (uint32_t i = 0; i < invList.size(); ++i) {
formula.clear(); formula.reserve(invList[i].size());
for (uint32_t j = 0; j < invList[i].size(); ++j) {
id = invList[i][j]; assert (_vrfNtk->getLatchSize() > id.id); assert (!d);
if (!solver->existVerifyData(_vrfNtk->getLatch(id.id), d))
solver->addBoundedVerifyData(_vrfNtk->getLatch(id.id), d);
assert (solver->existVerifyData(_vrfNtk->getLatch(id.id), d));
formula.push_back(solver->getFormula(_vrfNtk->getLatch(id.id), 0, d));
if (!id.cp) formula.back() = solver->getNegFormula(formula.back());
}
solver->assertImplyUnion(formula);
}
if (checkInitial) {
solver->assumeRelease(); solver->assumeInit();
if (solver->assump_solve()) { delete solver; return; }
}
// Check if the bad State Signal is Inconsistent with the Inductive Invariant
for (uint32_t i = 0, j = 0; i < unsolved.size(); ++i) {
solver->assumeRelease(); assert (!d);
if (!solver->existVerifyData(_vrfNtk->getOutput(unsolved[i]), d))
solver->addBoundedVerifyData(_vrfNtk->getOutput(unsolved[i]), d);
assert (solver->existVerifyData(_vrfNtk->getOutput(unsolved[i]), d));
solver->assumeProperty(_vrfNtk->getOutput(unsolved[i]), false, d);
if (!solver->assump_solve()) { _result[unsolved[i]].setIndInv(_vrfNtk); j = 0; }
else if (++j > 100) break; // Avoid Spending Too Much Effort on the Check
}
delete solver;
}
