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updates to seq and bug fixes (#4056)

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* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix #4037

* nicer output for skolem functions

* more overhaul of seq, some bug fixes

* na

* added offset_eq file

* na

* fix #4044

* fix #4040

* fix #4045

* updated ignore

* new rewrites for indexof based on #4036

* add shortcuts

* updated ne solver for seq, fix #4025

* use pair vectors for equalities that are reduced by seq_rewriter

* use erase_and_swap

* remove unit-walk

* na

* add check for #3200

* nits

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* name a type

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* remove fp check

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* remove unsound axiom instantiation for non-contains

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix rewrites

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix #4053

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix #4052

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-22 13:18:55 -07:00 • committed by GitHub
parent 53c14bd554
commit 95a78b2450
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39 changed files with 1516 additions and 1654 deletions
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src/smt/seq_axioms.h
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@ -86,6 +86,7 @@ namespace smt {
void add_le_axiom(expr* n);
void add_unit_axiom(expr* n);
void add_length_axiom(expr* n);
void unroll_not_contains(expr* n);
literal is_digit(expr* ch);
literal mk_ge(expr* e, int k) { return mk_ge_e(e, a.mk_int(k)); }