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fix #2158

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-02-26 15:13:47 -08:00
parent c4ee4ffae4
commit ea9e2f6642
1 changed files with 3 additions and 2 deletions
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5
src/qe/qe_lite.cpp
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@ -694,7 +694,8 @@ namespace eq {
if (m.proofs_enabled() && r != q) {
pr = m.mk_transitivity(pr, curr_pr);
}
} while (q != r && is_quantifier(r));
}
while (q != r && is_quantifier(r));
m_new_exprs.reset();
}
@ -2441,7 +2442,7 @@ class qe_lite_tactic : public tactic {
continue;
new_f = f;
m_qe(new_f, new_pr);
if (produce_proofs) {
if (new_pr) {
expr* fact = m.get_fact(new_pr);
if (to_app(fact)->get_arg(0) != to_app(fact)->get_arg(1)) {
new_pr = m.mk_modus_ponens(g->pr(i), new_pr);