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fix #4128

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This commit is contained in:
Nikolaj Bjorner 2020-04-27 17:10:48 -07:00
parent 4f462925a0
commit 38e0968845
1 changed files with 4 additions and 5 deletions
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9
src/tactic/arith/purify_arith_tactic.cpp
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@ -726,14 +726,13 @@ struct purify_arith_proc {
r(q->get_expr(), new_body, new_body_pr);
unsigned num_vars = r.cfg().m_new_vars.size();
expr_ref_vector & cnstrs = r.cfg().m_new_cnstrs;
if (num_vars == 0 && !cnstrs.empty()) {
cnstrs.push_back(new_body);
new_body = m().mk_and(cnstrs);
}
TRACE("purify_arith",
tout << "num_vars: " << num_vars << "\n";
tout << "body: " << mk_ismt2_pp(q->get_expr(), m()) << "\nnew_body: " << new_body << "\n";);
if (num_vars == 0) {
cnstrs.push_back(new_body);
new_body = m().mk_and(cnstrs);
result = m().update_quantifier(q, new_body);
if (m_produce_proofs) {
auto& cnstr_prs = r.cfg().m_new_cnstr_prs;
@ -745,7 +744,7 @@ struct purify_arith_proc {
else {
result = q;
if (m_produce_proofs) {
r.cfg().push_cnstr_pr(m().mk_reflexivity(q));
result_pr = m().mk_reflexivity(q);
}
}
}