mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-05-02 13:27:01 +00:00
Code Activity

fix #6400

Browse source 
bi-implication was treated as an atomic formula leading to incorrect projection.
This commit is contained in:
Nikolaj Bjorner 2022-10-17 11:00:21 -07:00
parent 541aba308c
commit d4885abdc0
3 changed files with 24 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

24
src/qe/mbp/mbp_term_graph.cpp
View file

@ -307,9 +307,8 @@ namespace mbp {
term *term_graph::mk_term(expr *a) {
expr_ref e(a, m);
term * t = alloc(term, e, m_app2term);
if (t->get_num_args() == 0 && m.is_unique_value(a)){
if (t->get_num_args() == 0 && m.is_unique_value(a))
t->mark_as_interpreted();
}
m_terms.push_back(t);
m_app2term.insert(a->get_id(), t);
@ -700,30 +699,23 @@ namespace mbp {
if (p1 != p2)
res.push_back(m.mk_eq(p1, p2));
}
else {
else
TRACE("qe", tout << "skipping " << mk_pp(lit, m) << "\n";);
}
}
else if (m.is_distinct(lit)) {
ptr_buffer<expr> diff;
for (expr* arg : *to_app(lit)) {
if (find_app(arg, p1)) {
for (expr* arg : *to_app(lit))
if (find_app(arg, p1))
diff.push_back(p1);
}
}
if (diff.size() > 1) {
if (diff.size() > 1)
res.push_back(m.mk_distinct(diff.size(), diff.data()));
}
else {
else
TRACE("qe", tout << "skipping " << mk_pp(lit, m) << "\n";);
}
}
else if (find_app(lit, p1)) {
else if (find_app(lit, p1))
res.push_back(p1);
}
else {
else
TRACE("qe", tout << "skipping " << mk_pp(lit, m) << "\n";);
}
}
remove_duplicates(res);
TRACE("qe", tout << "literals: " << res << "\n";);