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82 commits

Author SHA1 Message Date
Nikolaj Bjorner
009e94d188 update to theory_seq following examples from PJLJ
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-08-30 14:00:01 -07:00
Nikolaj Bjorner
b19f94ae5b make include paths uniformly use path relative to src. #534
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-07-31 13:24:11 -07:00
Nikolaj Bjorner
c44c8284bd use worklist algorithm to avoid stack overflow #1125
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-06-30 18:10:36 -07:00
Nikolaj Bjorner
5be3e959ab address issues raised in #998
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-06-15 20:46:47 -07:00
Nikolaj Bjorner
79a8e9aab0 fix build break #1029
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-05-18 12:09:51 -07:00
Nikolaj Bjorner
66e61b8a31 issues #963 #912 2017-04-17 03:06:38 -07:00
Nikolaj Bjorner
c1480b4389 handle model generation from issue #748. Deal with warnings from #836
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-12-12 00:40:52 +01:00
Nikolaj Bjorner
dea3b8ddf7 address warnings from #836
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-12-10 13:14:36 +01:00
Nikolaj Bjorner
4d9aadde35 updated consequence finder to fix bug in processing enumeration types
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-08-31 16:15:36 +08:00
Nikolaj Bjorner
60711bb0cd deal with model construction, issue #684. fix model construction for ite #678. WIth this version, issue #686 does not repro
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-07-20 12:18:07 -07:00
Nikolaj Bjorner
bdbf1c9bf4 add support for default semantics for stoi (non-integer strings map to -1). Issue #670
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-07-08 10:45:19 -07:00
Nikolaj Bjorner
c3f498a640 strengthen support for int.to.str and length reasoning. Issue #589
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-05-28 12:26:47 -07:00
Nikolaj Bjorner
85be486c1e add ite reduction to canonizer, remove it from ad-hoc routine
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-05-18 09:58:34 -07:00
Nikolaj Bjorner
ec565ae7a0 fixes to #596 and #592: use exponential step increments on integer problems, align int.to.str with canonizer and disequality checker
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-05-17 01:00:42 -07:00
Nikolaj Bjorner
4761f4f191 add handling for int.to.str
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-04-18 11:14:40 -07:00
Nikolaj Bjorner
c454b81b2c special case branching
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-04-05 11:57:49 +02:00
Nikolaj Bjorner
ed1a5797fb check that a clause was not removed to fix issue #551
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-04-04 20:15:49 +02:00
Nikolaj Bjorner
03336ab9f2 add evaluation of array equalities to model evaluator
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-04-02 15:07:01 +02:00
Nikolaj Bjorner
df2d7e7628 add intersection using symbolic automata facility
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-28 17:05:12 -08:00
Nikolaj Bjorner
e659845bc0 tune handling of contains, avoid redundant equalities, merge use of indexof.left/right with contains.left/right adding only least-ness constraints in the context of index
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-27 09:56:11 -08:00
Nikolaj Bjorner
ce8862d415 fix bug in conflict clause generation in seq-branch-variable
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-26 18:15:45 -08:00
Nikolaj Bjorner
4c408165ab Merge branch 'master' of https://github.com/Z3Prover/z3 into HEAD 2016-02-24 08:55:28 -08:00
Nikolaj Bjorner
5679fb5d6b experimenting with alternative prefix encodings
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-24 08:55:22 -08:00
Nikolaj Bjorner
d5383e2387 fix bug in definition of rewrite rule for replace, tighten constraints for tightest-prefix
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-23 18:41:56 -08:00
Nikolaj Bjorner
5962ca2a62 seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-18 12:08:35 -08:00
Nikolaj Bjorner
67958efed2 add fixed length heuristic
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-17 21:20:39 -08:00
Nikolaj Bjorner
133e3693de fix bug in replace built-in and move length-equality propagation to branch final check
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-09 11:08:33 +00:00
Nikolaj Bjorner
9c7e5c37d1 add equality propagation based on partial length information to sequence theory. Fix issue #429
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-04 08:12:46 -08:00
Nikolaj Bjorner
9b979b6e1e more string optimizations based on Chris' examples
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-01 17:08:11 -08:00
Nuno Lopes
b9c0578eea fix build on C++98 compilers 2016-02-01 17:12:22 +00:00
Nikolaj Bjorner
995a2e1a29 perf tuning based on Chris's examples
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-02-01 07:51:05 -08:00
Nikolaj Bjorner
345f6e87bd seq bug fixes
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-26 07:21:31 -08:00
Nikolaj Bjorner
924f03c6de fixing bugs in seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-23 10:38:49 -05:00
Nikolaj Bjorner
cccd502a4d bug-fixes to sequence theory
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-19 13:57:47 +01:00
Nikolaj Bjorner
85d44c5d66 fix axioms for extract, add extensionality checking for shared variables, convert exceptions to unknown status per #419
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-18 11:09:41 +05:30
Nikolaj Bjorner
9909c056f0 add range / loop handling for re. Fix regression reading mixed numerals reported by Trentin
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-13 00:49:31 -08:00
Nikolaj Bjorner
e22ac712b0 add model construction for disequations
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-11 16:53:29 -08:00
Nikolaj Bjorner
ad778f87c7 change data-structures to concanetation decomposition normal form
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-07 16:03:37 -08:00
Nikolaj Bjorner
0c2334417c fix build warnigs with && vs ||, tuning seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-07 06:53:00 -08:00
Nikolaj Bjorner
aec5a38b14 fix memory leak in SAT solver exposed by regression tests
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-06 11:44:55 -08:00
Nikolaj Bjorner
af758dea4a tuning for seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-05 08:23:44 -08:00
Nikolaj Bjorner
2c1d2aad44 seq, API
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-04 22:06:32 -08:00
Nikolaj Bjorner
c1ebf6b4fc seq + API
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-04 18:01:48 -08:00
Nikolaj Bjorner
68a532d066 seq, API
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-03 20:53:06 -08:00
Nikolaj Bjorner
e10ecad5dc seq API
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-02 22:52:28 -08:00
Nikolaj Bjorner
5e553a4dc1 seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-02 13:32:44 -08:00
Nikolaj Bjorner
876fd1f7ba seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-01 09:00:21 -08:00
Nikolaj Bjorner
6c6d1d92c4 seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2015-12-31 16:10:41 -08:00
Nikolaj Bjorner
78550ec816 seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2015-12-31 07:48:14 -08:00
Nikolaj Bjorner
746d26e744 seq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2015-12-29 21:14:52 -08:00