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fix #2613 fix #2612

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-10-05 16:57:51 -07:00
parent 016732aa59
commit 39edf73e78
16 changed files with 222 additions and 162 deletions
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17
src/ast/arith_decl_plugin.cpp
View file

@ -779,3 +779,20 @@ expr_ref arith_util::mk_add_simplify(unsigned sz, expr* const* args) {
}
return result;
}
bool arith_util::is_considered_uninterpreted(func_decl* f, unsigned n, expr* const* args) {
rational r;
if (is_decl_of(f, m_afid, OP_DIV) && is_numeral(args[1], r) && r.is_zero()) {
return true;
}
if (is_decl_of(f, m_afid, OP_IDIV) && is_numeral(args[1], r) && r.is_zero()) {
return true;
}
if (is_decl_of(f, m_afid, OP_MOD) && is_numeral(args[1], r) && r.is_zero()) {
return true;
}
if (is_decl_of(f, m_afid, OP_REM) && is_numeral(args[1], r) && r.is_zero()) {
return true;
}
return plugin().is_considered_uninterpreted(f);
}

3
src/ast/arith_decl_plugin.h
View file

@ -442,6 +442,9 @@ public:
expr_ref mk_add_simplify(expr_ref_vector const& args);
expr_ref mk_add_simplify(unsigned sz, expr* const* args);
bool is_considered_uninterpreted(func_decl* f, unsigned n, expr* const* args);
};