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wip - adding proof checkers, fixes to quantifier proof certificates

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This commit is contained in:
Nikolaj Bjorner 2022-10-10 09:46:22 +02:00
parent 4623117af8
commit de69874076
16 changed files with 241 additions and 58 deletions
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15
src/cmd_context/extra_cmds/proof_cmds.cpp
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@ -158,10 +158,15 @@ public:
// then check the simplified VC: phi(t) => psi.
// in case psi is the literal instantiation, then the clause is a propositional tautology.
// The VC function is a no-op if the proof hint does not have an associated vc generator.
m_checker.vc(proof_hint, clause);
expr_ref_vector vc(clause);
if (m_checker.vc(proof_hint, clause, vc)) {
std::cout << "(verified-" << proof_hint->get_name() << ")\n";
add_clause(clause);
return;
}
m_solver->push();
for (expr* lit : clause)
for (expr* lit : vc)
m_solver->assert_expr(m.mk_not(lit));
lbool is_sat = m_solver->check_sat();
if (is_sat != l_false) {
@ -175,7 +180,11 @@ public:
exit(0);
}
m_solver->pop(1);
std::cout << "(verified-smt)\n";
std::cout << "(verified-smt";
if (proof_hint) std::cout << " " << mk_pp(proof_hint, m);
for (expr* arg : clause)
std::cout << " " << mk_pp(arg, m);
std::cout << ")\n";
add_clause(clause);
}