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fix #4104

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-26 21:02:58 -07:00
parent d37ebb8309
commit fc1321f8b3
1 changed files with 17 additions and 0 deletions
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17
src/qe/qe.cpp
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@ -1406,6 +1406,21 @@ namespace qe {
m_conjs.add_plugin(p); m_conjs.add_plugin(p);
} }
bool has_uninterpreted(expr* _e) {
expr_ref e(_e, m);
arith_util au(m);
func_decl_ref f_out(m);
for (expr* arg : subterms(e)) {
if (!is_app(arg)) continue;
app* a = to_app(arg);
func_decl* f = a->get_decl();
if (m.is_considered_uninterpreted(f))
return true;
if (au.is_considered_uninterpreted(f, a->get_num_args(), a->get_args(), f_out))
return true;
}
return false;
}
void check(unsigned num_vars, app* const* vars, void check(unsigned num_vars, app* const* vars,
expr* assumption, expr_ref& fml, bool get_first, expr* assumption, expr_ref& fml, bool get_first,
@ -1445,6 +1460,8 @@ namespace qe {
if (assumption) m_solver.assert_expr(assumption); if (assumption) m_solver.assert_expr(assumption);
bool is_sat = false; bool is_sat = false;
lbool res = l_true; lbool res = l_true;
if (has_uninterpreted(m_fml))
res = l_undef;
while (res == l_true) { while (res == l_true) {
res = m_solver.check(); res = m_solver.check();
if (res == l_true) { if (res == l_true) {