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#5211

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This commit is contained in:
Nikolaj Bjorner 2021-04-24 10:28:22 -07:00
parent b1e8303257
commit af5e7a1c48
1 changed files with 4 additions and 2 deletions
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6
src/sat/smt/euf_invariant.cpp
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@ -48,8 +48,10 @@ namespace euf {
if (s().inconsistent())
return;
for (enode* n : m_egraph.nodes())
if (m.is_false(n->get_root()->get_expr()) && m.is_eq(n->get_expr()) &&
n->get_arg(0)->get_root() == n->get_arg(1)->get_root()) {
if (m.is_false(n->get_root()->get_expr()) &&
m.is_eq(n->get_expr()) &&
!m.is_bool(n->get_app()->get_arg(0)) &&
(n->get_arg(0)->get_root() == n->get_arg(1)->get_root())) {
enable_trace("euf");
TRACE("euf", display(tout << n->get_expr_id() << ": " << mk_pp(n->get_expr(), m) << "\n"
<< "#" << n->get_arg(0)->get_expr_id() << " == #" << n->get_arg(1)->get_expr_id() << " r: " << n->get_arg(0)->get_root_id() << "\n");