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22346 commits 76 branches 58 tags 262 MiB
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414 commits

Author SHA1 Message Date
Nikolaj Bjorner
7756e2c6d5
in progress (#4386) 
* initial work on replacing str in regex check

* finish rewriter for empty string in regex

* remove unnecessary argument in mk_regexp_contains_emptystr; initial template for eval_regexp_derivative

* progress on string in regexp general check using derivatives

* added recursive nullable and derivative funcitons, partially working

* remove tests from z3test

* fix rewriting infinite loop and some failing simplify checks

* several fixes addressing comments for z3 main branch PR #4386

* redo derivative to return an expr_ref, and null on failure

Co-authored-by: calebstanford-msr <t-casta@microsoft.com>
 2020-05-19 15:55:19 -07:00
Nikolaj Bjorner
5fe0eeda63 disable regressions in ST mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 09:37:06 -07:00
Nikolaj Bjorner
0f8f886389 use single return pattern 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 20:27:50 -07:00
Nikolaj Bjorner
bc03ffb800 typing error 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 20:19:33 -07:00
Nikolaj Bjorner
d26ef08c69 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:41:37 -07:00
Nikolaj Bjorner
ff34d84b35 ranges are never nullable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:41:04 -07:00
Nikolaj Bjorner
6e55880601 constant folding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:38:21 -07:00
Nikolaj Bjorner
5bbf05c93c kleene 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:35:31 -07:00
Nikolaj Bjorner
10edee48f3 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:11:59 -07:00
Nikolaj Bjorner
9d6c870e97 remove case with hi = 0 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:11:35 -07:00
Nikolaj Bjorner
f8d328b1fb add nullable, get-head-tail with Caleb 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 19:10:00 -07:00
Murphy Berzish
1c760b04cf
re.range with non-unit arguments is the empty language (#4360) 2020-05-17 19:08:50 -07:00
Nikolaj Bjorner
fc8dfe3e40 seq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 05:35:32 -07:00
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
4753d93bb7 add some of the SMTLIB2.6 conventions and features to strings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 14:00:02 -07:00
Nikolaj Bjorner
6a540e8429
add Julia to pipeline (#4199) 
* add Julia to pipeline

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

* na

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

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-03 17:16:46 -07:00
Nikolaj Bjorner
4067c84611 prepare for stronger rewrites 2020-05-02 15:51:49 -07:00
Nikolaj Bjorner
4d54b4109f #4153 2020-04-28 22:03:11 -07:00
Nikolaj Bjorner
815feddd1a fix #4156 2020-04-28 13:47:26 -07:00
Nikolaj Bjorner
a884201d62 remove using insert_if_not_there2 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-25 15:08:51 -07:00
Nikolaj Bjorner
470e87afe9 update rewite modality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-24 01:12:06 -07:00
Nikolaj Bjorner
851c38f64a fix #4086 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-24 00:52:02 -07:00
Nikolaj Bjorner
2793c3af2c more replace rewrites #4084 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-24 00:48:02 -07:00
Nikolaj Bjorner
03ba268219 more replace rewrites #4084 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-24 00:25:36 -07:00
Nikolaj Bjorner
04fec3f6a0 fix #4076 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-23 21:34:20 -07:00
Nikolaj Bjorner
cc8cd2cc2f na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-23 21:28:19 -07:00
Nikolaj Bjorner
9c3f0190f4 fix #4069 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-23 20:53:13 -07:00
Nikolaj Bjorner
c7878e384c fix #4060 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-22 17:46:16 -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
e1fa04b365 disable breaking change to model generation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-19 16:53:20 -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
a83f72b657 some fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-17 07:33:43 -07:00
Nikolaj Bjorner
f67077b7ff warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-15 17:13:02 -07:00
Nikolaj Bjorner
835b57b775 fix #3961 fix #3940 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-14 17:33:44 -07:00
Nikolaj Bjorner
e1027790ae more to #3926 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-13 16:04:54 -07:00
Nikolaj Bjorner
9f42338de8 fix #3926 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-13 14:43:27 -07:00
Nikolaj Bjorner
0ee79182d4 fix #3911 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-11 14:09:09 -07:00
Nikolaj Bjorner
57d430b3fd fix #3700 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-02 06:38:14 -07:00
Nikolaj Bjorner
73d73e6c95 enhance rewriting for indexof based on #3516 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-03-25 13:29:36 -07:00
Nikolaj Bjorner
d8423a4b46 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-26 20:53:58 -08:00
Nikolaj Bjorner
67cc2a8cf0 fix #2939 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-05 04:51:35 -08:00
Nikolaj Bjorner
ee62f83131 fix #2892 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-27 20:59:02 -08:00
Nikolaj Bjorner
7e415c1b69 update to logging 2019-12-04 23:08:41 +03:00
Nikolaj Bjorner
7e452254c3 distribute string and regex concatenation on literals, scenario exposed by #2668 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-29 11:24:18 -08:00
Nikolaj Bjorner
3c6dceae7c fix #2717 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-18 12:03:59 -08:00
Nikolaj Bjorner
64dd4e1c83 fix #2659 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-25 10:42:21 -07:00
Nikolaj Bjorner
71d68b8fe0 fix #2445 fix #2519 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-13 20:24:14 -07:00
Nikolaj Bjorner
a921b4ff4a fix #2643 - fuzzers are here to get you @lorisdanton 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-12 18:19:13 -07:00
Nikolaj Bjorner
9a516e5e41 fix str.at rewrite 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-06 20:43:02 -07:00
Nikolaj Bjorner
a8e7074ddd fix #2618 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-06 19:44:33 -07:00