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fix #3525

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-03-26 09:17:39 -07:00
parent fd219abe8c
commit c165f69248
3 changed files with 56 additions and 16 deletions
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11
src/tactic/core/dom_simplify_tactic.cpp
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@ -392,8 +392,8 @@ void dom_simplify_tactic::simplify_goal(goal& g) {
}
CTRACE("simplify", r != g.form(i), tout << r << " " << mk_pp(g.form(i), m) << "\n";);
change |= r != g.form(i);
proof* new_pr = nullptr;
if (g.proofs_enabled()) {
proof_ref new_pr(m);
if (g.proofs_enabled() && g.pr(i)) {
new_pr = m.mk_modus_ponens(g.pr(i), m.mk_rewrite(g.form(i), r));
}
g.update(i, r, new_pr, g.dep(i));
@ -412,9 +412,10 @@ void dom_simplify_tactic::simplify_goal(goal& g) {
}
change |= r != g.form(i);
CTRACE("simplify", r != g.form(i), tout << r << " " << mk_pp(g.form(i), m) << "\n";);
proof* new_pr = nullptr;
if (g.proofs_enabled()) {
new_pr = m.mk_modus_ponens(g.pr(i), m.mk_rewrite(g.form(i), r));
proof_ref new_pr(m);
if (g.proofs_enabled() && g.pr(i)) {
new_pr = m.mk_rewrite(g.form(i), r);
new_pr = m.mk_modus_ponens(g.pr(i), new_pr);
}
g.update(i, r, new_pr, g.dep(i));
}