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import updates from poly branch

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2024-01-10 19:42:58 -08:00
parent 2ca1187b3a
commit 955c80e98b
8 changed files with 408 additions and 217 deletions
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1
src/ast/arith_decl_plugin.h
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@ -401,6 +401,7 @@ public:
// return true if \c n is a term of the form (* -1 r)
bool is_zero(expr const* n) const { rational val; return is_numeral(n, val) && val.is_zero(); }
bool is_one(expr const* n) const{ rational val; return is_numeral(n, val) && val.is_one(); }
bool is_minus_one(expr* n) const { rational tmp; return is_numeral(n, tmp) && tmp.is_minus_one(); }
bool is_times_minus_one(expr* n, expr*& r) const {
if (is_mul(n) && to_app(n)->get_num_args() == 2 && is_minus_one(to_app(n)->get_arg(0))) {