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fix rewriter loop reported in #1354

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-11-13 13:49:03 -08:00
parent dbb35b951c
commit 195d81ebef
2 changed files with 3 additions and 1 deletions
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2
src/ast/rewriter/arith_rewriter.cpp
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@ -843,6 +843,8 @@ br_status arith_rewriter::mk_mod_core(expr * arg1, expr * arg2, expr_ref & resul
continue;
if (m_util.is_numeral(arg, arg_v) && mod(arg_v, v2) == arg_v)
continue;
if (m().is_ite(arg))
continue;
// found target for rewriting
break;
}

2
src/interp/iz3translate.cpp
View file

@ -155,7 +155,7 @@ public:
return res;
}
void scan_skolems(const ast &proof){
void scan_skolems(const ast &proof) {
hash_map<ast,int> memo;
scan_skolems_rec(memo,proof, INT_MAX);
}