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fix #3004

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-02-17 19:37:47 -10:00
parent 1959b7c48a
commit f810f25d8d
4 changed files with 10 additions and 11 deletions
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12
src/ast/macros/quasi_macros.cpp
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@ -157,10 +157,8 @@ bool quasi_macros::is_quasi_macro(expr * e, app_ref & a, expr_ref & t) const {
if (is_forall(e)) {
quantifier * q = to_quantifier(e);
expr * qe = q->get_expr();
if ((m_manager.is_eq(qe))) {
expr * lhs = to_app(qe)->get_arg(0);
expr * rhs = to_app(qe)->get_arg(1);
expr * qe = q->get_expr(), *lhs = nullptr, *rhs = nullptr;
if ((m_manager.is_eq(qe, lhs, rhs))) {
if (is_non_ground_uninterp(lhs) && is_unique(to_app(lhs)->get_decl()) &&
!depends_on(rhs, to_app(lhs)->get_decl()) && fully_depends_on(to_app(lhs), q)) {
@ -173,9 +171,9 @@ bool quasi_macros::is_quasi_macro(expr * e, app_ref & a, expr_ref & t) const {
t = lhs;
return true;
}
} else if (m_manager.is_not(qe) && is_non_ground_uninterp(to_app(qe)->get_arg(0)) &&
is_unique(to_app(to_app(qe)->get_arg(0))->get_decl())) { // this is like f(...) = false
a = to_app(to_app(qe)->get_arg(0));
} else if (m_manager.is_not(qe, lhs) && is_non_ground_uninterp(lhs) &&
is_unique(to_app(lhs)->get_decl())) { // this is like f(...) = false
a = to_app(lhs);
t = m_manager.mk_false();
return true;
} else if (is_non_ground_uninterp(qe) && is_unique(to_app(qe)->get_decl())) { // this is like f(...) = true