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fix #3903

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-16 17:55:23 -07:00
parent 19f655c693
commit 767dff4a5a
1 changed files with 3 additions and 1 deletions
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4
src/smt/diff_logic.h
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@ -409,10 +409,13 @@ private:
if (gamma < m_gamma[target]) {
m_gamma[target] = gamma;
m_parent[target] = e_id;
SASSERT(m_heap.contains(target));
m_heap.decreased(target);
}
break;
case DL_PROCESSED:
// if two edges with the same source/target occur in the graph.
break;
default:
UNREACHABLE();
}
@ -425,7 +428,6 @@ private:
m_assignment_stack.reset();
return true;
}
source = m_heap.erase_min();
m_mark[source] = DL_PROCESSED;
acc_assignment(source, m_gamma[source]);