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deal with empty set of post-orders

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-06 11:34:14 +01:00
parent f59cf2452d
commit eac659f748
5 changed files with 16 additions and 14 deletions
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4
src/muz/rel/karr_relation.cpp
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@ -111,8 +111,8 @@ namespace datalog {
void filter_interpreted(app* cond) {
rational one(1), mone(-1);
expr* e1, *e2, *en;
var* v, *w;
expr* e1 = 0, *e2 = 0, *en = 0;
var* v = 0, *w = 0;
rational n1, n2;
expr_ref_vector conjs(m);
flatten_and(cond, conjs);

4
src/muz/transforms/dl_mk_interp_tail_simplifier.cpp
View file

@ -398,8 +398,8 @@ namespace datalog {
}
bool mk_interp_tail_simplifier::propagate_variable_equivalences(rule * r, rule_ref& res) {
if (!m_context.get_params ().xform_tail_simplifier_pve ())
return false;
if (!m_context.get_params ().xform_tail_simplifier_pve ())
return false;
unsigned u_len = r->get_uninterpreted_tail_size();
unsigned len = r->get_tail_size();
if (u_len == len) {