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fix #4627

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-12 10:13:13 -07:00
parent a5e4e520fb
commit 5ecc59b6bc
1 changed files with 1 additions and 1 deletions
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2
src/ast/rewriter/arith_rewriter.cpp
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@ -694,7 +694,7 @@ br_status arith_rewriter::mk_eq_core(expr * arg1, expr * arg2, expr_ref & result
expr_ref arith_rewriter::neg_monomial(expr* e) const {
expr_ref_vector args(m());
rational a1;
if (is_app(e) & m_util.is_mul(e)) {
if (is_app(e) && m_util.is_mul(e)) {
if (is_numeral(to_app(e)->get_arg(0), a1)) {
if (!a1.is_minus_one()) {
args.push_back(m_util.mk_numeral(-a1, m_util.is_int(e)));