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22459 commits 86 branches 58 tags 206 MiB
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Author SHA1 Message Date
CEisenhofer
3873f387be Model construction has to respect the length constraints 2026-04-22 19:51:09 +02:00
CEisenhofer
0a1eb26952 Avoid Skolem functions for length and symbolic characters introduced during Nielsen saturation (power exponents are still Skolem functions) 2026-04-22 11:06:55 +02:00
Nikolaj Bjorner
aed76af2b5 deal with code smells/duplicate 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 18:57:25 +02:00
CEisenhofer
46364a1502 Extract argument of unit when adding constant character to range 2026-04-21 18:54:36 +02:00
CEisenhofer
8b2643ff02 Missing unit around symbolic characters 2026-04-21 18:38:03 +02:00
Nikolaj Bjorner
b2fa00ecf4 fix vector<le, false> to vector<le> we need the copy and destructor semantics for expr_ref 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 18:37:23 +02:00
CEisenhofer
03c990e0e1 Push substitutions back to base solver 2026-04-21 18:29:40 +02:00
Nikolaj Bjorner
4446705eae clean up conflict generation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 18:28:25 +02:00
Nikolaj Bjorner
3296681a19 add code review comments 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 17:17:19 +02:00
Nikolaj Bjorner
40122b494c add comments, fix a bug in early return for min-term version of expansion 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 16:49:29 +02:00
Nikolaj Bjorner
3beeadfe51 nits 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 16:20:17 +02:00
CEisenhofer
ec92a532b8 Use dedicated string variables based on mod. count 2026-04-21 10:53:35 +02:00
Nikolaj Bjorner
8cc85a7d7b code simplification, fix conflict in new_diseq_eh 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 10:17:43 +02:00
Nikolaj Bjorner
352b14fe2b fix and optimize not-contains and regex equalities 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 09:16:00 +02:00
Nikolaj Bjorner
c18188cba8 avoid crashes in cases like wildcard-matching-regex-67.smt2, need regex constraint solving 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-21 05:44:53 +02:00
Nikolaj Bjorner
e172aa370d add simplification rule to concatentations of regex to avoid stack overflow in derivatives of very long expressions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-20 18:20:43 +02:00
CEisenhofer
41412293fe Let's try to justify bounds 2026-04-20 15:52:35 +02:00
Nikolaj Bjorner
0bcdca787f fix crashes when using replace_all 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-16 22:37:36 +02:00
Nikolaj Bjorner
64e7f29533 remove spurious include 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-16 04:57:27 +02:00
Nikolaj Bjorner
c97aebe2b6 remove spurious ref 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-16 04:53:39 +02:00
CEisenhofer
82df1afeaf tentative solution: use existing nullability check (we might want to check in the future which guards of the ITE are actually true) 2026-04-14 18:07:03 +02:00
Nikolaj Bjorner
f09f6d5097 add internalization as fallback option 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-14 08:47:55 -07:00
Nikolaj Bjorner
725b13680e na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-14 08:39:22 -07:00
CEisenhofer
0c4e4ad702 Regex factorization missed some justifications 2026-04-14 17:19:07 +02:00
CEisenhofer
2db99473a3 Removed irrelevant information from membership constraints 2026-04-14 16:27:50 +02:00
CEisenhofer
195f2caf25 Removed strange code that caused the solver to give up when finding a model instantly 2026-04-14 16:06:03 +02:00
CEisenhofer
3fdd903373 Bug if uninternalized literal becomes internalized and immediately false 2026-04-14 15:48:13 +02:00
CEisenhofer
ed4387c70e Log to file 2026-04-14 11:47:26 +02:00
Nikolaj Bjorner
acae332b13 add spp for easier pretty printing snode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-14 00:39:01 -07:00
Nikolaj Bjorner
53cc320efa deps 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-14 00:29:58 -07:00
Nikolaj Bjorner
68d7917653 debug printing for widening 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-13 12:16:03 -07:00
Nikolaj Bjorner
035ea95faa add pp methods 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-13 11:41:58 -07:00
CEisenhofer
9155ce85bb Removed unused function 2026-04-13 15:05:41 +02:00
CEisenhofer
d620f20c63 Simplify code 2026-04-13 14:06:16 +02:00
Nikolaj Bjorner
276b9c38af log conflict 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-13 04:41:38 -07:00
Nikolaj Bjorner
4dfb6f7a7d display node state 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-12 15:45:03 -07:00
Nikolaj Bjorner
1be70988b9 add logging for length / Parikh bug 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-12 15:34:22 -07:00
CEisenhofer
95d28ad02c Fixed the model generation fix 2026-04-12 19:34:11 +02:00
Nikolaj Bjorner
2a142cd150 recompile aw 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-11 10:12:03 -07:00
CEisenhofer
e584895c98 Make model extraction a bit more stable 2026-04-10 18:15:06 +02:00
CEisenhofer
2b7204b07c Does model construction work properly now? 2026-04-10 17:59:16 +02:00
CEisenhofer
e6ef0d29c4 We need to check local consistency over and over again 2026-04-09 15:56:00 +02:00
CEisenhofer
09572b20ed Character ranges must be passed back to the solver 2026-04-09 15:21:12 +02:00
CEisenhofer
aafb704cf8 Bug fix in model extraction 2026-04-09 14:42:48 +02:00
CEisenhofer
d127055841 fix(nseq): handle empty children in apply_regex_factorization 2026-04-09 14:24:44 +02:00
CEisenhofer
a36254f104 Some more bug fixes 2026-04-09 13:47:29 +02:00
CEisenhofer
38d725dc5a Deriving by allchar should not crash 2026-04-09 11:48:35 +02:00
CEisenhofer
8eb0ac29d9 We have to check for local conflicts before clearing the flag 2026-04-09 11:42:30 +02:00
CEisenhofer
598e4ede4e Removed debug code 2026-04-09 11:03:18 +02:00
CEisenhofer
803018b7c3 We forgot relevant equations with one side being empty 2026-04-09 10:40:33 +02:00