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add debug information in user-propagate #5687

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-11-29 08:59:24 -08:00
parent 1e9e52a58f
commit c083aa82ee
5 changed files with 22 additions and 4 deletions
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4
src/ast/rewriter/seq_skolem.h
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@ -37,7 +37,8 @@ namespace seq {
symbol m_aut_step; // regex unfolding state
symbol m_accept; // regex
symbol m_is_empty, m_is_non_empty; // regex emptiness check
symbol m_pre, m_post; // inverse of at: (pre s i) + (at s i) + (post s i) = s if 0 <= i < (len s)
symbol m_pre, m_post; // inverse of at: (pre s i) + (at s i) + (post s i) = s if 0 <= i < (len s)
symbol m_postp;
symbol m_eq; // equality atom
symbol m_max_unfolding, m_length_limit;
@ -84,6 +85,7 @@ namespace seq {
expr_ref mk_tail(expr* s, expr* i) { return mk(m_tail, s, i); }
expr_ref mk_post(expr* s, expr* i) { return mk(m_post, s, i); }
expr_ref mk_postp(expr* s, expr* i) { return mk(m_postp, s, i); }
expr_ref mk_ite(expr* c, expr* t, expr* e) { return mk(symbol("seq.if"), c, t, e, nullptr, t->get_sort()); }
expr_ref mk_last(expr* s);
expr_ref mk_first(expr* s);