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Missing justification added

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Added check for correctness of conflict core
This commit is contained in:
CEisenhofer 2026-04-08 10:15:27 +02:00
parent c7e7b40d40
commit 26d36ba6ee
5 changed files with 56 additions and 28 deletions
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37
src/smt/theory_nseq.cpp
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@ -735,14 +735,37 @@ namespace smt {
#ifdef Z3DEBUG
#if 1
std::vector<std::pair<unsigned, unsigned>> confl;
for (auto& lit : lits) {
std::cout << mk_pp(ctx.literal2expr(lit), m) << "\n-----------\n";
// Pass constraints to a subsolver to check correctness modulo legacy solver
{
smt_params p;
p.m_string_solver = "seq";
kernel kernel(m, p);
for (seq::dep_source const& d : m_nielsen.conflict_sources()) {
if (std::holds_alternative<enode_pair>(d))
kernel.assert_expr(
m.mk_eq(
std::get<enode_pair>(d).first->get_expr(),
std::get<enode_pair>(d).second->get_expr()
)
);
else
kernel.assert_expr(ctx.literal2expr(std::get<sat::literal>(d)));
}
const auto res = kernel.check();
if (res == l_true) {
std::cout << "Insufficient justification:\n";
for (auto& lit : lits) {
std::cout << mk_pp(ctx.literal2expr(lit), m) << "\n-----------\n";
}
for (auto& eq : eqs) {
std::cout << mk_pp(eq.first->get_expr(), m) << " == " << mk_pp(eq.second->get_expr(), m) << "\n-----------\n";
}
auto dot = m_nielsen.to_dot();
std::cout << std::endl;
}
VERIFY(res != l_true);
}
for (auto& eq : eqs) {
std::cout << mk_pp(eq.first->get_expr(), m) << " == " << mk_pp(eq.second->get_expr(), m) << "\n-----------\n";
}
std::cout << std::endl;
#endif
#endif