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Code Activity
22828 commits 81 branches 58 tags 272 MiB
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166 commits

Author SHA1 Message Date
CEisenhofer
63a668a71f Give up with we have nasty replace_all or friends (otw. we would be unsound due to Nielsen saturation) 2026-06-26 15:14:44 +02:00
CEisenhofer
d2db79e1a7 For whatever reason int-extraction got moved into an assertion 
Cleanup
 2026-06-26 10:38:08 +02:00
CEisenhofer
2aa1d1ee01 Memorize previous conflicts 2026-06-25 15:40:53 +02:00
CEisenhofer
64fed10e86 Projection operator => view 2026-06-25 10:48:20 +02:00
CEisenhofer
be627007e1 Use lookahead for regex decomposition 
Make snode const
 2026-06-11 15:34:25 +02:00
CEisenhofer
2dbefbcd56 Lookahead for regex splits applied to membership constraints 
Rewriting constraint/prefix/suffix with constant strings to regexes
 2026-06-10 20:35:36 +02:00
CEisenhofer
dbb3f70873 Moved the regex splitting into rewriter 
Added some simplifications
 2026-06-10 15:00:58 +02:00
CEisenhofer
069068ce5e Don't use enodes for justifying disequality conflicts 2026-06-09 15:40:28 +02:00
CEisenhofer
7c7ca27822 Sounder? 2026-06-06 15:24:25 +02:00
CEisenhofer
67906da97a Corrected string extraction 2026-06-05 19:57:00 +02:00
CEisenhofer
8ac7a242eb Z3 arguments got ignored in the Nielsen graph 2026-06-05 19:19:08 +02:00
CEisenhofer
c20bc0e631 First attempt for monadic decomposition 2026-06-05 18:40:36 +02:00
CEisenhofer
e94b6db8e5 Removed assertion to make the build dependencies acyclic 2026-06-03 10:58:25 +02:00
CEisenhofer
5b41c6eb9f Better tracking for debugging 2026-06-01 19:50:34 +02:00
CEisenhofer
1637b006c5 Output automaton 2026-06-01 17:29:09 +02:00
CEisenhofer
cebe57dffa Avoid unnecessary regex cycle splits 2026-05-29 19:14:08 +02:00
CEisenhofer
70031b674c Added real projection operator 2026-05-29 15:51:35 +02:00
CEisenhofer
7d7199dec6 use expr id when doing model construction and not internal id 2026-05-28 18:02:41 +02:00
CEisenhofer
2bbd75a186 We should not bypass checking primitive constraints being empty 2026-05-28 15:29:43 +02:00
CEisenhofer
0fa1e75f3f Remove redundant function 2026-05-27 17:27:48 +02:00
CEisenhofer
e74b235d87 Solve disequalities lazily 2026-05-27 17:25:39 +02:00
CEisenhofer
4cd908345a Prevent expressions in partial dfa being freed to early 2026-05-26 13:07:38 +02:00
CEisenhofer
c18aa647e1 Removed recursion from regex unwinding 2026-05-22 15:15:48 +02:00
CEisenhofer
cedb13d045 First check for conflict and then sat 2026-05-22 14:38:07 +02:00
CEisenhofer
2ea1c74071 Make var-nielsen case non-recursive 2026-05-21 19:12:15 +02:00
CEisenhofer
dafa3cf5bd Added feature (?) to SAT core to prefer the Nielsen assumptions during splitting 2026-05-21 19:06:45 +02:00
CEisenhofer
ca12eae670 WIP: Undid internal constraints 2026-05-21 17:17:49 +02:00
CEisenhofer
315a09aea8 [WIP] Try to replace "recursive reusage" of variables by seq.slice 2026-05-20 17:24:57 +02:00
CEisenhofer
dd00dd7362 First step towards not-reusing variables 2026-05-20 10:11:50 +02:00
CEisenhofer
9bb0f7e337 Fix some IDE warnings 2026-05-19 16:03:21 +02:00
CEisenhofer
0d1ee09e62 Keep most of the Nielsen graph and do a hot-restart when only external literals changed 2026-05-19 15:33:20 +02:00
Nikolaj Bjorner
2a36b9a68e split into context and sub-solver, move length force predicates to context-solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-05-17 19:01:03 -07:00
Nikolaj Bjorner
9d4feed0ae remove expr_ref from dependencies, only use literals that are true. 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-05-17 13:28:12 -07:00
Nikolaj Bjorner
b75acc5c14 replace seq::le by generic expr_ref 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-05-16 23:10:44 -07:00
CEisenhofer
71d7d70080 Missing dependency bug. Still not fixed, but better now 2026-05-12 14:00:50 +02:00
CEisenhofer
c9fb432191 The side-condition of the "if"-split belongs on the edges 2026-05-12 10:30:29 +02:00
CEisenhofer
fb6b05aa83 Fixed the "partial automaton" after we push regex unwinding to ITE splitting 2026-05-11 17:57:06 +02:00
CEisenhofer
f7f2ee8f74 Using only one solver 2026-05-07 15:49:16 +02:00
Nikolaj Bjorner
8c02ec087b fix crash with D:\\bench\\inputs\\QF_S\\20240318-omark\\cyclic-xy.smt2 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-05-05 10:53:12 -07:00
CEisenhofer
e7cc24d7ea Next step towards partial automata 2026-05-05 13:58:15 +02:00
CEisenhofer
e2e876c7a9 Removed legacy code 2026-05-04 20:16:13 +02:00
CEisenhofer
5b3d734ecb Fixed regex factorization again 2026-05-04 19:25:07 +02:00
CEisenhofer
adb9ca4305 Some steps towards partial automatons 2026-05-04 18:31:38 +02:00
Nikolaj Bjorner
266008e81f update seq_model draft 
redo seq_model to be compatible with model_generator
 2026-05-03 13:57:56 -07:00
Nikolaj Bjorner
014315764d re-fix the same bug pointed out to an earlier version 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-26 08:16:37 -07:00
Nikolaj Bjorner
abbe36561d cleanup service 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-24 17:22:04 -07:00
Nikolaj Bjorner
cedd896ea5 redo length re-computation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-24 15:49:19 -07:00
Nikolaj Bjorner
1cf5e3e300 remove unused function 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-23 13:04:02 -07:00
Nikolaj Bjorner
ace4105a90 fix test build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-04-23 08:06:15 -07:00
CEisenhofer
3873f387be Model construction has to respect the length constraints 2026-04-22 19:51:09 +02:00