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make euf-egraph resilient to when there are no consumers to literal propagation.
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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@ -154,10 +154,8 @@ namespace euf {
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}
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void egraph::add_literal(enode* n, enode* ante) {
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/*
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if (n->bool_var() == sat::null_bool_var)
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if (!m_on_propagate_literal)
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return;
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*/
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if (!ante) ++m_stats.m_num_eqs; else ++m_stats.m_num_lits;
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if (!ante)
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m_on_propagate_literal(n, ante);
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