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24 commits

Author SHA1 Message Date
Nikolaj Bjorner
9d3c8a6a2f na 2022-01-01 17:59:31 -08:00
Nikolaj Bjorner
9e5dcf3ecb bound length of ubv2s
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-07-16 16:17:59 +02:00
Nikolaj Bjorner
0752b1385c add length axioms
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-07-13 14:22:58 +02:00
Nikolaj Bjorner
f74adb1ebd ubv2s step3 2021-07-12 17:15:08 +02:00
Nikolaj Bjorner
b6a3891ac4 str.from_ubv step2 2021-07-12 15:00:36 +02:00
Nikolaj Bjorner
f29a596070 deal with compiler warnings, from MacOS CI build 2021-03-08 17:14:09 -08:00
Nikolaj Bjorner
0ce1c34d81 fix #5065 - regression solving str.from_int equations now that it isn't injective any longer
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-03-02 12:59:48 -08:00
Nikolaj Bjorner
377d060036 move to separate axiom management
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-02-23 18:09:45 -08:00
Nikolaj Bjorner
d9fb40602e use theory agnostic axioms in more cases 2021-02-21 18:36:53 -08:00
Nikolaj Bjorner
ca9fcbd1df na
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-02-18 13:46:59 -08:00
Nikolaj Bjorner
4f9117a921 Move seq axioms to theory independent module 2021-02-16 05:13:52 -08:00
Nikolaj Bjorner
823830181b butterfly effect with relevancy marking
bail out of infinite instantiation loop
2021-02-15 16:37:23 -08:00
Nikolaj Bjorner
70b4822571 patch seq theory using purification to avoid unsoundness caused by interaction with canonization and rewriting
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-02-14 17:41:06 -08:00
Nikolaj Bjorner
45af1bd243 fix build, move seq_skolem 2021-02-14 14:40:29 -08:00
Nikolaj Bjorner
34cc60410f additional str/re operators, remove encoding option from zstring
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-05-17 05:08:36 -07:00
Nikolaj Bjorner
95a78b2450
updates to seq and bug fixes (#4056)
* 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>
2020-04-22 13:18:55 -07:00
Nikolaj Bjorner
dd064a5554 delay digit axioms until solving itos succeeds
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-20 00:32:48 -07:00
Nikolaj Bjorner
79b776fee5 na
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-19 12:00:38 -07:00
Nikolaj Bjorner
b92b6c0fc6 add missing digit axioms
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-19 11:12:37 -07:00
Nikolaj Bjorner
0fe2d3d8b7 more seq overhaul
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-18 19:46:30 -07:00
Nikolaj Bjorner
a9c4984a16 more seq overhaul
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-18 19:46:30 -07:00
Nikolaj Bjorner
3e9479d01a a lot of seq churn
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-17 18:21:40 -07:00
Nikolaj Bjorner
a83f72b657 some fixes
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-17 07:33:43 -07:00
Nikolaj Bjorner
501aa7927d split into seq_axioms and seq_skolem
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-04-17 06:14:52 -07:00