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fix #3843

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-08 11:08:45 -07:00
parent 40aa2f7cb2
commit 6e8d9001dc
4 changed files with 14 additions and 10 deletions
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4
src/ast/ast.cpp
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@ -2823,7 +2823,7 @@ proof * ast_manager::mk_modus_ponens(proof * p1, proof * p2) {
SASSERT(is_implies(get_fact(p2)) || is_eq(get_fact(p2)) || is_oeq(get_fact(p2)));
CTRACE("mk_modus_ponens", to_app(get_fact(p2))->get_arg(0) != get_fact(p1),
tout << mk_pp(get_fact(p1), *this) << "\n" << mk_pp(get_fact(p2), *this) << "\n";);
SASSERT(to_app(get_fact(p2))->get_arg(0) == get_fact(p1));
SASSERT(!proofs_enabled() || to_app(get_fact(p2))->get_arg(0) == get_fact(p1));
CTRACE("mk_modus_ponens", !is_ground(p2) && !has_quantifiers(p2), tout << "Non-ground: " << mk_pp(p2, *this) << "\n";);
CTRACE("mk_modus_ponens", !is_ground(p1) && !has_quantifiers(p1), tout << "Non-ground: " << mk_pp(p1, *this) << "\n";);
if (is_reflexivity(p2))
@ -2887,6 +2887,8 @@ proof * ast_manager::mk_transitivity(proof * p1, proof * p2) {
return p2;
if (!p2)
return p1;
if (proofs_disabled())
return nullptr;
SASSERT(has_fact(p1));
SASSERT(has_fact(p2));
SASSERT(is_app(get_fact(p1)));