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narrowing incorrect lemma generation

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-09-11 11:31:19 -07:00
parent 3bf072557e
commit 4ffd860375
3 changed files with 8 additions and 7 deletions
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11
src/solver/mus.cpp
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@ -217,13 +217,12 @@ struct mus::imp {
}
expr_set mss_set;
for (unsigned i = 0; i < mss.size(); ++i) {
mss_set.insert(mss[i]);
for (expr* e : mss) {
mss_set.insert(e);
}
expr_set::iterator it = min_core.begin(), end = min_core.end();
for (; it != end; ++it) {
if (mss_set.contains(*it) && min_lit != *it) {
unknown.push_back(*it);
for (expr * e : min_core) {
if (mss_set.contains(e) && min_lit != e) {
unknown.push_back(e);
}
}
core_literal = min_lit;