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https://github.com/Z3Prover/z3
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rewind qhead to ensure re-propagation after cancellation
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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parent
41deae52c6
commit
7d7e03e377
3 changed files with 8 additions and 2 deletions
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@ -1749,8 +1749,10 @@ namespace smt {
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unsigned qhead = m_qhead;
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if (!bcp())
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return false;
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if (get_cancel_flag())
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if (get_cancel_flag()) {
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m_qhead = qhead;
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return true;
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}
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SASSERT(!inconsistent());
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propagate_relevancy(qhead);
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if (inconsistent())
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@ -1768,8 +1770,10 @@ namespace smt {
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m_qmanager->propagate();
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if (inconsistent())
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return false;
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if (resource_limits_exceeded())
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if (resource_limits_exceeded()) {
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m_qhead = qhead;
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return true;
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}
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if (!can_propagate()) {
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CASSERT("diseq_bug", inconsistent() || check_missing_diseq_conflict());
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CASSERT("eqc_bool", check_eqc_bool_assignment());
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