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add missing rewrite rule. Issue #731
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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@ -890,6 +890,11 @@ br_status seq_rewriter::mk_str_stoi(expr* a, expr_ref& result) {
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result = m_autil.mk_numeral(r, true);
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return BR_DONE;
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}
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expr* b;
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if (m_util.str.is_itos(a, b)) {
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result = b;
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return BR_DONE;
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}
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return BR_FAILED;
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}
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