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remove case with hi = 0
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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@ -2024,9 +2024,6 @@ expr_ref seq_rewriter::is_nullable(expr* r) {
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if (lo == 0) {
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return expr_ref(m().mk_true(), m());
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}
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else if (hi == 0) {
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return expr_ref(m().mk_false(), m());
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}
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else {
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return is_nullable(r1);
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}
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