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19185 commits 23 branches 48 tags 157 MiB
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370 commits

Author SHA1 Message Date
Clemens Eisenhofer 1553bae20c
Performance improvements for seq-sls (#7519) 
* Improve length repair

* Fixed arguments

* Special case regex membership with constant string

* Trying hybrid eq-repair strategy

* Different heuristic

* Fixed stoi
 2025-01-21 08:01:59 -08:00
Nikolaj Bjorner c6f58c8bf7 updates to some_string_in_re per code review comments 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-11 17:47:27 -08:00
Clemens Eisenhofer c572fc2e4f
Regex membership (#7506) 
* Make finding a word in the regex iterative

* Fixed gc problem
 2025-01-11 17:41:37 -08:00
Nikolaj Bjorner c1a62d346c add missing return 2025-01-07 21:02:02 -08:00
Nikolaj Bjorner 1cb126f3dd remove assertion that doesn't build 2025-01-07 17:16:33 -08:00
Nikolaj Bjorner 2dd4faf598 sketch expr_inverter approach for eliminating unconstrained regex containment. 2025-01-07 16:53:57 -08:00
Nikolaj Bjorner c9cae77304 update regex membership to be slightly better tuned 2024-12-25 10:56:16 -08:00
Nikolaj Bjorner 62db7642ec refine rewriting depth for lt constraints 2024-11-14 21:43:40 -08:00
Nikolaj Bjorner c0e748a51a fix #7446, by adding rewrite simplification 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-11-11 19:16:11 -08:00
Nikolaj Bjorner 1cc808c58d fix #7446, by adding rewrite simplification 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-11-11 19:08:11 -08:00
Nikolaj Bjorner 5993735b34 simplify string patterns into prefix/suffix constraints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-10-14 14:32:39 -07:00
Nikolaj Bjorner 96c1375786 #7391 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-09-22 19:35:03 +01:00
Nikolaj Bjorner a6b502779b fix #7252 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-06-13 17:52:17 -07:00
Bruce Mitchener 53f89a81c1
Fix some typos. (#7115) 2024-02-07 23:06:43 -08:00
Nikolaj Bjorner f97dd34028 tests 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-30 14:54:04 -07:00
Nikolaj Bjorner 93427f1175 regression test 2447 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-26 08:48:58 -07:00
Nikolaj Bjorner 0b8d7b755d useful string rewrites 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-26 03:48:50 -07:00
Nikolaj Bjorner 7b490543ca add missing simplification; handle nit #6952 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 10:00:15 -07:00
Nikolaj Bjorner 643512613a simplify last_index function 2023-09-18 12:52:59 -07:00
Nikolaj Bjorner a68f91f0a6 fix #6729 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-05-22 14:07:12 +01:00
Nikolaj Bjorner 53ca65a62e fix unsound rewrite 2023-03-20 18:55:40 +01:00
Nikolaj Bjorner d1c7ff1a36 add unconstrained elimination for sequences 2023-03-20 17:07:04 +01:00
Nikolaj Bjorner 6df711254b fix type error when mapping over the empty sequence 2022-09-10 16:03:52 -07:00
Nikolaj Bjorner de892ed9f2 fix #6054 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-26 15:51:57 -04:00
Nikolaj Bjorner 4d8e4b5bd3 fix #6052 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-25 17:21:01 -04:00
Nikolaj Bjorner c850259f89 rw 2022-05-22 07:54:27 -04:00
Nikolaj Bjorner 87d2a3b4e5 map/mapi/foldl/foldli 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-05-04 01:10:18 -07:00
Nikolaj Bjorner f1806d32d6 remove buggy code, close, fix #5825 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-03-20 13:25:44 -07:00
Nikolaj Bjorner 081c62d006 allow range comparison for bit-vectors and int/real 2022-03-10 17:08:49 -08:00
Nikolaj Bjorner 11030fc81d disable unsound mk_seq_butlast 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-02-21 18:56:49 -08:00
Nikolaj Bjorner 773e829c58 #5804 2022-01-31 10:16:09 -08:00
Nikolaj Bjorner 007af9cb8a fix #5784 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-01-21 03:08:03 +01:00
Margus Veanes 5afb95b34a
improved subset checking for regexes with counters (#5731) 2021-12-22 17:53:34 -08:00
Margus Veanes 1d9aad6ea9
improved regex merging avoiding unsat nontermination (#5728) 2021-12-20 17:44:06 -08:00
Margus Veanes be38b256c8
fixed bug in is_char_const_range (#5724) 2021-12-19 17:46:42 -08:00
Margus Veanes 25d54ebb40
fixing regression of issue 1224 (#5723) 2021-12-19 14:07:53 -08:00
Margus Veanes a7b1db611c
State graph dgml update and fixes in condition simplifier (#5721) 
* improved generated dgml graph

* fixed simplification of negated ranges and did some code cleanup

* do not make loops with lower=upper=0, this is epsilon

* do not add loops with lower=upper=1

* bug fix in normalization: forgotten eps case
 2021-12-19 11:09:55 -08:00
Nikolaj Bjorner e1ffaa7faf na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-12-17 11:34:57 -08:00
Nikolaj Bjorner 6963451704 na 2021-12-16 20:13:29 -08:00
Nikolaj Bjorner 5974200444 fixes to previous push and streamlining 2021-12-16 20:06:49 -08:00
Nikolaj Bjorner 4e82a9af5f pin expressions 2021-12-16 19:41:32 -08:00
Margus Veanes a288f9048a
Update regex union and intersection to maintain ANF (#5717) 
* added merge for unions and intersections

* added normalization rules to ensure ANF

* fixing PR comments related to merge
 2021-12-16 19:19:36 -08:00
Margus Veanes 2be93870c8
Cleanup regex info and some fixes in Derivative code (#5709) 
* removed unused regex info fields

* cleanup of info and fixes in antimirov derivatives

* removed extra qualification on operator
 2021-12-15 10:59:34 -08:00
Nikolaj Bjorner 51fa40ece5 fix spelling 2021-12-09 10:23:37 -08:00
Henrich Lauko 96671cfc73
Add and fix a few general compiler warnings. (#5628) 
* rewriter: fix unused variable warnings

* cmake: make missing non-virtual dtors error

* treewide: add missing virtual destructors

* cmake: add a few more checks

* api: add missing virtual destructor to user_propagator_base

* examples: compile cpp example with compiler warnings

* model: fix unused variable warnings

* rewriter: fix logical-op-parentheses warnings

* sat: fix unused variable warnings

* smt: fix unused variable warnings
 2021-10-29 15:42:32 +02:00
Margus Veanes f78546cd7c
fixed bug of computing butlast of a sequence (#5602) 2021-10-15 18:02:51 -07:00
Margus Veanes cb120c93f4
Regex range bug fix (#5601) 
* added a missing derivative case for nonground range

* further missing cases and a bug fix in re.to_str
 2021-10-15 15:30:55 -07:00
Nikolaj Bjorner 9a76bf0aa2 #5591 
nth issue
 2021-10-12 13:59:28 -07:00
Margus Veanes 146f4621c5
Updated regex derivative engine (#5567) 
* updated derivative engine

* some edit

* further improvements in derivative code

* more deriv code edits and re::to_str update

* optimized mk_deriv_accept

* fixed PR comments

* small syntax fix

* updated some simplifications

* bugfix:forgot to_re before reverse

* fixed PR comments

* more PR comment fixes

* more PR comment fixes

* forgot to delete

* deleting unused definition

* fixes

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

* fixes

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

Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2021-10-08 13:04:49 -07:00
Margus Veanes 22bb4c2db7
more fixes related to issue #5140 (#5466) 
* instead of u in to_re(s) make u = s

* bug fix: added missing emptiness check
 2021-08-09 17:48:35 -07:00