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print deq in lits2pure. fix #6877 (#6878)

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Hari Govind V K 2023-08-26 23:53:15 -04:00 • committed by GitHub
parent 63467f9dfa
commit 5ba06f4e28
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1 changed files with 8 additions and 1 deletions
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9
src/qe/mbp/mbp_term_graph.cpp
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@ -1177,7 +1177,7 @@ class term_graph::projector {
} }
void lits2pure(expr_ref_vector &res) { void lits2pure(expr_ref_vector &res) {
expr *e1 = nullptr, *e2 = nullptr, *p1 = nullptr, *p2 = nullptr; expr *e1 = nullptr, *e2 = nullptr, *e = nullptr, *p1 = nullptr, *p2 = nullptr;
for (auto *lit : m_tg.m_lits) { for (auto *lit : m_tg.m_lits) {
if (m.is_eq(lit, e1, e2)) { if (m.is_eq(lit, e1, e2)) {
if (find_app(e1, p1) && find_app(e2, p2)) { if (find_app(e1, p1) && find_app(e2, p2)) {
@ -1186,6 +1186,13 @@ class term_graph::projector {
else else
TRACE("qe", tout << "skipping " << mk_pp(lit, m) << "\n";); TRACE("qe", tout << "skipping " << mk_pp(lit, m) << "\n";);
} }
else if (m.is_not(lit, e) && m.is_eq(e, e1, e2)) {
if (find_app(e1, p1) && find_app(e2, p2)) {
res.push_back(mk_neq(m, p1, p2));
}
else
TRACE("qe", tout << "skipping " << mk_pp(lit, m) << "\n";);
}
else if (m.is_distinct(lit)) { else if (m.is_distinct(lit)) {
ptr_buffer<expr> diff; ptr_buffer<expr> diff;
for (expr *arg : *to_app(lit)) for (expr *arg : *to_app(lit))