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Code Activity
13962 commits 43 branches 51 tags 169 MiB
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908 commits

Author SHA1 Message Date
Nikolaj Bjorner
7f7663a3b4 fix #4478 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-31 11:16:21 -07:00
Nikolaj Bjorner
d41ecda03e skip non-overlap simplification in rewriter 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 17:27:54 -07:00
Nikolaj Bjorner
e68c72755a fix leak 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 14:49:53 -07:00
Nikolaj Bjorner
f381d51c83 update badge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 14:04:12 -07:00
calebstanford-msr
c939195c10
add regex support for reverse and left/right derivative rewriting (#4477) 
* partial work on adding 'reverse' (broken code)

* new op codes for derivative and reverse + associated rewrite rules

* incorporate reverses and derivatives in rewriter + some fixes

* enable rewriting str.in_re constraints with right derivative
 2020-05-29 13:00:37 -07:00
Nikolaj Bjorner
3d9d52f742 add detection of string equalities 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-29 10:40:47 -07:00
Nikolaj Bjorner
e0130f5cf4 remove Kleene naming as it is a misnomer in this context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 20:41:03 -07:00
Nikolaj Bjorner
0911a06d81 bounds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 20:05:32 -07:00
Nikolaj Bjorner
ea1f50b77e simplify extended contains patterns 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 19:11:29 -07:00
Nikolaj Bjorner
6a90072a98 bug in non-member disjunction 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-28 12:03:40 -07:00
Nikolaj Bjorner
90708576fe from #4468 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 14:04:30 -07:00
Nikolaj Bjorner
87f8da022e fix non-empty -> empty typo 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 12:13:25 -07:00
Nikolaj Bjorner
9dd8ebb474 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-27 10:10:25 -07:00
Nikolaj Bjorner
88e36c6bf3 add general purpose emptiness/non-emptiness check 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-26 20:42:21 -07:00
Nikolaj Bjorner
a97bc65af4 hoist co-factors eagerly without adding axioms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-25 15:10:45 -07:00
Nikolaj Bjorner
e938ee33bb na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-25 14:11:59 -07:00
Nikolaj Bjorner
4e01d5b5c1 tune axioms for derivatives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-25 14:11:59 -07:00
Nikolaj Bjorner
eb3f20832e initial pass at using derivatives in regex unfolding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-23 11:53:07 -07:00
Nikolaj Bjorner
9eedd4ecd6 gate mk_bool_app by existence of regex 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-22 10:09:16 -07:00
Nikolaj Bjorner
82fb7573d7 more rewrites for emptiness 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-22 09:56:21 -07:00
Margus Veanes
5d6be3f17f
adding regex simplification rewriter (#4440) 2020-05-22 09:55:29 -07:00
Nikolaj Bjorner
18bb90f93d fix #4426 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-21 21:27:26 -07:00
Nikolaj Bjorner
6381cfdc05 remove old functionality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 16:34:21 -07:00
Nikolaj Bjorner
209f6a9e2e regression free behavior 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 16:21:19 -07:00
Nikolaj Bjorner
287bccde30 disable new incomplete functionality for master 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-19 15:56:57 -07:00
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
1def58bc9f optional unicode mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-17 19:06:34 -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
937afbf95b draft rewrite 2020-05-16 12:43:26 -07:00
Nikolaj Bjorner
2822922d36 fix regression with mainintaing signs for monotonicity lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 11:17:40 -07:00
Nikolaj Bjorner
d352c61e01 fix regression with mainintaing signs for monotonicity lemmas 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-16 11:17:39 -07:00
Nikolaj Bjorner
884a68251b fix #4266 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-11 16:53:59 -07:00
Nikolaj Bjorner
f044071f5e fix #4260 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-09 18:13:12 -07:00
Nikolaj Bjorner
d20259b57a remove stdout 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-05 14:42:50 -07:00
Nikolaj Bjorner
b81ab94db7
pipeline with release mode (#4206) 
* pipeline with release mode

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

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-04 12:30:03 -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