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include information whether rule is reachable in del_rule model converter for simpler model presentation #1241

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-11-15 11:46:28 -08:00
parent 2cab1cccc9
commit 2c97eb1393
3 changed files with 21 additions and 16 deletions
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19
src/muz/base/dl_util.cpp
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@ -277,16 +277,21 @@ namespace datalog {
return get_max_var(has_var);
}
void del_rule(horn_subsume_model_converter* mc, rule& r) {
void del_rule(horn_subsume_model_converter* mc, rule& r, bool unreachable) {
if (mc) {
ast_manager& m = mc->get_manager();
expr_ref_vector body(m);
for (unsigned i = 0; i < r.get_tail_size(); ++i) {
if (r.is_neg_tail(i)) {
body.push_back(m.mk_not(r.get_tail(i)));
}
else {
body.push_back(r.get_tail(i));
if (unreachable) {
body.push_back(m.mk_false());
}
else {
for (unsigned i = 0; i < r.get_tail_size(); ++i) {
if (r.is_neg_tail(i)) {
body.push_back(m.mk_not(r.get_tail(i)));
}
else {
body.push_back(r.get_tail(i));
}
}
}
TRACE("dl_dr",