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revert to logging conflict to get EUF trim to work

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-07-25 09:45:35 -07:00
parent 6c8b8609ee
commit 68a437e615
6 changed files with 15 additions and 4 deletions
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8
src/sat/sat_proof_trim.cpp
View file

@ -383,14 +383,18 @@ namespace sat {
return false;
};
if (all_of(m_clause, [&](sat::literal lit) { return s.value(lit) == l_false; }))
if (all_of(m_clause, [&](sat::literal lit) { return s.value(lit) == l_false; })) {
IF_VERBOSE(3, verbose_stream() << "conflict " << m_clause << "\n");
set_conflict(m_clause, cl);
return;
}
if (m_clause.size() == 2 && is_unit2())
s.propagate_bin_clause(m_clause[0], m_clause[1]);
else if (m_clause.size() > 2 && is_unit())
s.propagate_clause(*cl, true, 0, s.cls_allocator().get_offset(cl));
s.propagate(false);
if (s.inconsistent() || all_of(m_clause, [&](sat::literal lit) { return s.value(lit) == l_false; })) {
if (s.inconsistent()) {
IF_VERBOSE(3, verbose_stream() << "conflict " << m_clause << "\n");
set_conflict(m_clause, cl);
}

3
src/sat/smt/arith_diagnostics.cpp
View file

@ -192,6 +192,9 @@ namespace arith {
case hint_type::farkas_h:
name = "farkas";
break;
case hint_type::cut_h:
name = "cut";
break;
case hint_type::bound_h:
name = "bound";
break;

2
src/sat/smt/arith_solver.cpp
View file

@ -1147,7 +1147,7 @@ namespace arith {
app_ref b = mk_bound(m_lia->get_term(), m_lia->get_offset(), !m_lia->is_upper());
IF_VERBOSE(4, verbose_stream() << "cut " << b << "\n");
literal lit = expr2literal(b);
assign(lit, m_core, m_eqs, explain(hint_type::bound_h, lit));
assign(lit, m_core, m_eqs, explain(hint_type::cut_h, lit));
lia_check = l_false;
break;
}

1
src/sat/smt/arith_solver.h
View file

@ -51,6 +51,7 @@ namespace arith {
enum class hint_type {
farkas_h,
bound_h,
cut_h,
implied_eq_h
};

1
src/sat/smt/euf_proof.cpp
View file

@ -255,6 +255,7 @@ namespace euf {
smt_proof_hint* solver::mk_smt_hint(symbol const& n, unsigned nl, literal const* lits, unsigned ne, expr_pair const* eqs, unsigned nd, expr_pair const* deqs) {
if (!use_drat())
return nullptr;
TRACE("euf", tout << "SMT hint " << n << "\n");
push(value_trail(m_lit_tail));
push(restore_vector(m_proof_literals));