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fix #4191

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This commit is contained in:
Nikolaj Bjorner 2020-05-02 11:15:11 -07:00
parent 8be266c18c
commit 47fa6ba7a6
1 changed files with 3 additions and 0 deletions
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src/tactic/arith/bv2int_rewriter.cpp
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@ -231,6 +231,9 @@ br_status bv2int_rewriter::mk_idiv(expr * arg1, expr * arg2, expr_ref & result)
br_status bv2int_rewriter::mk_mod(expr * s, expr * t, expr_ref & result) {
expr_ref s1(m()), s2(m()), t1(m());
rational r;
if (!m_arith.is_numeral(t, r) || !r.is_pos())
return BR_FAILED;
if (is_bv2int(s, s1) && is_bv2int(t, t1)) {
align_sizes(s1, t1, false);
result = m_bv.mk_bv2int(m_bv.mk_bv_urem(s1, t1));