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fix #3461

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-03-22 14:46:24 -07:00
parent 9f1530fdc0
commit 61d9960420
1 changed files with 2 additions and 2 deletions
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4
src/ast/rewriter/th_rewriter.cpp
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@ -664,7 +664,7 @@ struct th_rewriter_cfg : public default_rewriter_cfg {
expr_ref & result,
proof_ref & result_pr) {
quantifier_ref q1(m());
proof * p1 = nullptr;
proof_ref p1(m());
if (is_quantifier(new_body) &&
to_quantifier(new_body)->get_kind() == old_q->get_kind() &&
to_quantifier(new_body)->get_kind() != lambda_k &&
@ -730,7 +730,7 @@ struct th_rewriter_cfg : public default_rewriter_cfg {
result_pr = nullptr;
if (m().proofs_enabled()) {
proof * p2 = nullptr;
proof_ref p2(m());
if (q1.get() != result.get() && q1->get_kind() != lambda_k)
p2 = m().mk_elim_unused_vars(q1, result);
result_pr = m().mk_transitivity(p1, p2);