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v0.1 of nla saturation

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This commit is contained in:
Nikolaj Bjorner 2025-09-26 23:05:02 +03:00
parent 6adb234673
commit ef27e38d5f
12 changed files with 461 additions and 175 deletions
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11
src/smt/theory_lra.cpp
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@ -2022,6 +2022,7 @@ public:
}
void false_case_of_check_nla(const nla::lemma & l) {
TRACE(arith, tout << "nla false case\n";);
m_lemma = l; //todo avoid the copy
m_explanation = l.expl();
literal_vector core;
@ -3472,13 +3473,19 @@ public:
// lp().shrink_explanation_to_minimum(m_explanation); // todo, enable when perf is fixed
++m_num_conflicts;
++m_stats.m_conflicts;
for (auto ev : m_explanation)
set_evidence(ev.ci(), m_core, m_eqs);
if (m_eqs.empty() && all_of(m_core, [&](literal l) { return ctx().get_assignment(l) == l_false; }))
is_conflict = true;
for (auto l : m_core) {
verbose_stream() << l << " " << ctx().get_assignment(l) << "\n";
}
TRACE(arith_conflict,
tout << "@" << ctx().get_scope_level() << (is_conflict ? " conflict":" lemma");
for (auto const& p : m_params) tout << " " << p;
tout << "\n";
display_evidence(tout << core << " ", m_explanation););
for (auto ev : m_explanation)
set_evidence(ev.ci(), m_core, m_eqs);
if (params().m_arith_validate)