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generalize guard in conflict resolution to handle non-equality binary predicates

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-01-13 13:41:47 -08:00
parent 0d6220f383
commit b80302cfb0
1 changed files with 2 additions and 1 deletions
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src/smt/smt_conflict_resolution.cpp
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@ -759,7 +759,8 @@ namespace smt {
app * fact = to_app(m_manager.get_fact(pr));
app * n1_owner = n1->get_owner();
app * n2_owner = n2->get_owner();
if (fact->get_num_args() != 2 || (fact->get_arg(0) != n2_owner && fact->get_arg(1) != n2_owner)) {
bool is_eq = m_manager.is_eq(fact) || m_manager.is_iff(fact);
if (!is_eq || (fact->get_arg(0) != n2_owner && fact->get_arg(1) != n2_owner)) {
CTRACE("norm_eq_proof_bug", !m_ctx.is_true(n2) && !m_ctx.is_false(n2),
tout << "n1: #" << n1->get_owner_id() << ", n2: #" << n2->get_owner_id() << "\n";
if (fact->get_num_args() == 2) {