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remove deprecated derivative code

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This commit is contained in:
Nikolaj Bjorner 2026-06-25 19:40:35 -07:00
parent 110a670ea1
commit c530faab4e
3 changed files with 9 additions and 520 deletions
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16
src/smt/seq_regex.cpp
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@ -581,15 +581,15 @@ namespace smt {
expr_ref_pair_vector cofactors(m);
seq_rw().get_cofactors(hd, d, cofactors);
for (auto const& p : cofactors) {
if (is_member(p.second, u))
for (auto const& [c, r] : cofactors) {
if (is_member(r, u))
continue;
expr_ref cond(p.first, m);
expr_ref cond(c, m);
seq_rw().elim_condition(hd, cond);
rewrite(cond);
if (m.is_false(cond))
continue;
expr_ref next_non_empty = sk().mk_is_non_empty(p.second, re().mk_union(u, p.second), n);
expr_ref next_non_empty = sk().mk_is_non_empty(r, re().mk_union(u, r), n);
if (!m.is_true(cond))
next_non_empty = m.mk_and(cond, next_non_empty);
lits.push_back(th.mk_literal(next_non_empty));
@ -834,10 +834,10 @@ namespace smt {
literal_vector lits;
expr_ref_pair_vector cofactors(m);
seq_rw().get_cofactors(hd, d, cofactors);
for (auto const& p : cofactors) {
if (is_member(p.second, u))
for (auto const& [c, r] : cofactors) {
if (is_member(r, u))
continue;
expr_ref cond(p.first, m);
expr_ref cond(c, m);
seq_rw().elim_condition(hd, cond);
rewrite(cond);
if (m.is_false(cond))
@ -848,7 +848,7 @@ namespace smt {
expr_ref ncond(mk_not(m, cond), m);
lits.push_back(th.mk_literal(mk_forall(m, hd, ncond)));
}
expr_ref is_empty1 = sk().mk_is_empty(p.second, re().mk_union(u, p.second), n);
expr_ref is_empty1 = sk().mk_is_empty(r, re().mk_union(u, r), n);
lits.push_back(th.mk_literal(is_empty1));
th.add_axiom(lits);
}