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#5794

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-01-27 10:50:48 -08:00
parent a621041308
commit 4da930b490
1 changed files with 4 additions and 0 deletions
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4
src/ast/rewriter/bv_rewriter.cpp
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@ -2809,6 +2809,10 @@ br_status bv_rewriter::mk_bvsmul_no_overflow(unsigned num, expr * const * args,
bool is_num1 = is_numeral(args[0], a0_val, bv_sz); bool is_num1 = is_numeral(args[0], a0_val, bv_sz);
bool is_num2 = is_numeral(args[1], a1_val, bv_sz); bool is_num2 = is_numeral(args[1], a1_val, bv_sz);
if (bv_sz == 1) {
result = m().mk_bool_val(!(a0_val.is_one() && a1_val.is_one()));
return BR_DONE;
}
if (is_num1 && (a0_val.is_zero() || a0_val.is_one())) { if (is_num1 && (a0_val.is_zero() || a0_val.is_one())) {
result = m().mk_true(); result = m().mk_true();
return BR_DONE; return BR_DONE;