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add destructive equality resolution to the main simplifier.

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This commit is contained in:
Nikolaj Bjorner 2023-02-18 17:54:26 -08:00
parent c0f80f92ba
commit cb81473260
2 changed files with 15 additions and 2 deletions
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5
src/ast/rewriter/der.cpp
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@ -197,9 +197,10 @@ void der::reduce1(quantifier * q, expr_ref & r, proof_ref & pr) {
m_pos2var.reserve(num_args, -1);
// Find all disequalities
// Find all equalities/disequalities
for (unsigned i = 0; i < num_args; i++) {
is_eq = is_forall(q) ? is_var_diseq(literals.get(i), num_decls, v, t) : is_var_eq(literals.get(i), num_decls, v, t);
expr* arg = literals.get(i);
is_eq = is_forall(q) ? is_var_diseq(arg, num_decls, v, t) : is_var_eq(arg, num_decls, v, t);
if (is_eq) {
unsigned idx = v->get_idx();
if (m_map.get(idx, nullptr) == nullptr) {