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add validation to polysat

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-12-28 15:52:30 -08:00
parent 20afc55b41
commit bd93379346
6 changed files with 164 additions and 70 deletions
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63
src/sat/smt/intblast_solver.cpp
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@ -182,6 +182,67 @@ namespace intblast {
translate_expr(e);
}
lbool solver::check_axiom(sat::literal_vector const& lits) {
sat::literal_vector core;
for (auto lit : lits)
core.push_back(~lit);
return check_core(core, {});
}
lbool solver::check_propagation(sat::literal lit, sat::literal_vector const& lits, euf::enode_pair_vector const& eqs) {
sat::literal_vector core;
core.append(lits);
core.push_back(~lit);
return check_core(core, eqs);
}
lbool solver::check_core(sat::literal_vector const& lits, euf::enode_pair_vector const& eqs) {
m_core.reset();
m_vars.reset();
m_is_plugin = false;
m_solver = mk_smt2_solver(m, s.params(), symbol::null);
for (unsigned i = 0; i < m_translate.size(); ++i)
m_translate[i] = nullptr;
expr_ref_vector es(m), original_es(m);
for (auto lit : lits)
es.push_back(ctx.literal2expr(lit));
for (auto [a, b] : eqs)
es.push_back(m.mk_eq(a->get_expr(), b->get_expr()));
original_es.append(es);
translate(es);
for (auto e : m_vars) {
auto v = translated(e);
auto b = rational::power_of_two(bv.get_bv_size(e));
m_solver->assert_expr(a.mk_le(a.mk_int(0), v));
m_solver->assert_expr(a.mk_lt(v, a.mk_int(b)));
}
IF_VERBOSE(10, verbose_stream() << "check\n";
m_solver->display(verbose_stream());
verbose_stream() << es << "\n");
lbool r = m_solver->check_sat(es);
m_solver->collect_statistics(m_stats);
IF_VERBOSE(2, verbose_stream() << "(sat.intblast :result " << r << ")\n");
if (r == l_true) {
model_ref mdl;
m_solver->get_model(mdl);
verbose_stream() << original_es << "\n";
verbose_stream() << *mdl << "\n";
verbose_stream() << es << "\n";
m_solver->display(verbose_stream());
}
return r;
}
lbool solver::check_solver_state() {
sat::literal_vector literals;
uint_set selected;
@ -386,7 +447,7 @@ namespace intblast {
return x;
return a.mk_int(mod(r, N));
}
if (any_of(m_vars, [&](expr* v) { return translated(v) == x && bv.get_bv_size(v) == bv.get_bv_size(bv_expr); }))
if (any_of(m_vars, [&](expr* v) { return is_translated(v) && translated(v) == x && bv.get_bv_size(v) == bv.get_bv_size(bv_expr); }))
return x;
return a.mk_mod(x, a.mk_int(N));
}