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fix #2609

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-10-02 14:40:11 -07:00
parent a635049e23
commit feff1f7f96
3 changed files with 5 additions and 3 deletions
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1
src/model/model_evaluator.cpp
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@ -342,7 +342,6 @@ struct evaluator_cfg : public default_rewriter_cfg {
result = m_au.mk_int(0);
return BR_DONE;
}
return BR_FAILED;
}

4
src/qe/qsat.cpp
View file

@ -503,8 +503,8 @@ namespace qe {
if (is_uninterp_const(a)) { // TBD generalize for uninterpreted functions.
vars.push_back(a);
}
for (unsigned i = 0; i < a->get_num_args(); ++i) {
todo.push_back(a->get_arg(i));
for (expr* arg : *a) {
todo.push_back(arg);
}
}
}

3
src/tactic/arith/probe_arith.cpp
View file

@ -465,6 +465,7 @@ struct is_non_nira_functor {
if (!compatible_sort(n))
throw_found(n);
family_id fid = n->get_family_id();
rational r;
if (fid == m.get_basic_family_id())
return;
if (fid == u.get_family_id()) {
@ -484,6 +485,8 @@ struct is_non_nira_functor {
case OP_IDIV: case OP_DIV: case OP_REM: case OP_MOD:
if (m_linear && !u.is_numeral(n->get_arg(1)))
throw_found(n);
if (m_linear && u.is_numeral(n->get_arg(1), r) && r.is_zero())
throw_found(n);
if (!is_ground(n->get_arg(0)) || !is_ground(n->get_arg(1)))
throw_found(n);
return;