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Author SHA1 Message Date
Nikolaj Bjorner d97bd48669 adding lookahead mode to arithmetic sls solver 2025-01-11 15:47:17 -08:00
Nikolaj Bjorner 847278fba8 adding global lookahead variant to sls arith solver 2025-01-09 16:47:33 -08:00
Nikolaj Bjorner f9ce41bd2b Update theory_lra.cpp 2025-01-08 15:41:08 -08:00
Nikolaj Bjorner 270c127407 sketch fixed variable callback mechanism 2025-01-08 12:50:46 -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
chausner c7dfb619a2
Minor tweaks in README.md (#7504) 2025-01-07 14:31:45 -08:00
Nikolaj Bjorner ab9ea4e6e7 Add outline of elimination for regex membership constraints 2025-01-07 14:17:28 -08:00
Nikolaj Bjorner b6c0e6fe4b
Update README.md 2025-01-07 11:02:39 -08:00
Nikolaj Bjorner af0113f41f Disable the Code Coverage workflow 2025-01-07 11:01:49 -08:00
Clemens Eisenhofer 5c60c6662c
Small seq-sls fixes (#7503) 
* Calculation based on wrong update list

* Fixed regex problem
 2025-01-07 09:26:00 -08:00
Nikolaj Bjorner e133a297ba change score for comparisons to use hamming distance 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-07 03:58:44 -08:00
Nikolaj Bjorner f77f259542 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 18:12:12 -08:00
Nikolaj Bjorner b6f45bcd9f limit lookahead count to 20 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 18:06:00 -08:00
Nikolaj Bjorner aed0ad3505 limit lookahead count to 10 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 17:40:17 -08:00
Nikolaj Bjorner 59fad2b10a shave off bv test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 17:25:30 -08:00
Nikolaj Bjorner e3e650a249 optimzie 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 15:36:20 -08:00
Nikolaj Bjorner 6787d87623 hoist update stack creation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 13:16:07 -08:00
Nikolaj Bjorner 5a5570ef4e remove type check in insert_update 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 11:12:08 -08:00
Nikolaj Bjorner 67827bfe56 restore nyi trace 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 08:37:14 -08:00
Nikolaj Bjorner a8b88b1850 fish for nyi 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-06 07:30:16 -08:00
Nikolaj Bjorner e45f186e67 make ite evaluation sensitive to using temporary Boolean assignment 2025-01-05 20:59:14 -08:00
Nikolaj Bjorner be5a16cc4d fixup scoring function for sle and ule 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-05 19:05:33 -08:00
Nikolaj Bjorner b3e410b5e4 fixup tabu checks to revised representation 2025-01-05 14:24:41 -08:00
Nikolaj Bjorner 71a4801c1d add shortcuts to convert to python objects in cases of numerals and strings 2025-01-05 12:17:38 -08:00
Nikolaj Bjorner cd41b21fa2 fix #7501 2025-01-05 11:59:59 -08:00
Nikolaj Bjorner f6e3c5ae79 re-enable fixed tabu 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-05 11:49:12 -08:00
Nikolaj Bjorner 6b17862886 bug-fixes to root-literal sls 2025-01-05 11:31:12 -08:00
Nikolaj Bjorner bed085934f bugfixes to bv-sls 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-04 20:57:17 -08:00
Nikolaj Bjorner 710f757495 fixup parameter handling for enabling bv-lookahead 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-04 15:57:02 -08:00
Nikolaj Bjorner 05f166f736 add py_value to selected classes in python bindings, add mode for input-assertion based lookahead solving 2025-01-04 13:40:49 -08:00
Nikolaj Bjorner 7e4681d836 enable rotation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-03 11:49:39 -08:00
Nikolaj Bjorner 5a57636cd8 use native sdiv 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-03 10:56:15 -08:00
Nikolaj Bjorner bfcd75595e update test file 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-02 21:03:50 -08:00
Nikolaj Bjorner 1131d8dbe6 update test file 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-02 20:59:40 -08:00
Nikolaj Bjorner e9c656701d throttle costly flips by reset and random 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-02 20:39:41 -08:00
Nikolaj Bjorner 70f7feabc8 flip tabu on predicate being repaired, add model rotation code 2025-01-02 14:39:36 -08:00
Nikolaj Bjorner f67e1b8b8b only allow flip if it doesn't increase unsat score 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-02 08:39:43 -08:00
Nikolaj Bjorner 814d7f4d0a block flips to units 2025-01-01 16:01:58 -08:00
Nikolaj Bjorner cb61af0496 fix restart counters 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2025-01-01 14:34:09 -08:00
Nikolaj Bjorner 0128a1e067 check for bit-vector 2025-01-01 13:04:15 -08:00
Nikolaj Bjorner b12e72eaad extend lookhaead to work over nested terms with predicates 2025-01-01 12:37:39 -08:00
Nikolaj Bjorner 234bd402d3 take 1 on flip conditions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-12-31 12:16:54 -08:00
Nikolaj Bjorner b415b82625 take 1 on flip conditions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-12-31 11:44:38 -08:00
Nikolaj Bjorner a511b8bcf0 disable unit tests relying on changed functionality 2024-12-31 09:24:41 -08:00
Nikolaj Bjorner 3433b14dfa separate fixed from bits to allow updates that break tabu 
- range and fixed restrictions on terms are based on constraints and can be violated temporarily.
- bv_eval currently does not allow updating over fixed bits which leads to non-termination. TODO
- lookahead only considers tabu when setting values of variables.
 2024-12-30 17:47:18 -08:00
Nikolaj Bjorner 983763213b temper verbose output on tabu updates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-12-30 12:36:47 -08:00
Nikolaj Bjorner 81678923a1 take into account for empty vars 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-12-30 12:15:27 -08:00
Clemens Eisenhofer 27cb81e7e6
Several changes to make sls terminate more often with length/extract operations (#7498) 
* Fixed range regex

* Fix sls for str.at

* Added case for str.at

* Pad/Truncate string in sls extract/length to fit length constraints

* Guarded index check

* Added missing progressing cases in extraction

* Add padding if required

* Commented out debug output
 2024-12-30 10:53:27 -08:00