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5950 commits 23 branches 48 tags 157 MiB
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126 commits

Author SHA1 Message Date
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 acba529bce fix bug in encoding of axioms for indexof. Issue #806 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-09 15:32:15 +01:00
Nikolaj Bjorner e65d80dedd make semantics of extract/substr deterministic. Issue #781 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-15 18:29:51 +02:00
Nikolaj Bjorner caf0a1e80d fix breaking change to theory-seq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-05 07:22:27 +00:00
Nikolaj Bjorner 152321bce6 fix crash in poly normalizer exposed by qe. Issue #775 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-04 20:29:12 +00:00
Nikolaj Bjorner 1450594fc6 add patch to deal with bug exposed in issue #721 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-10 12:15:49 -07:00
Nikolaj Bjorner 2f67665c7e ensure stoi axiom even when no value is present for argument. Issue #731 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-10 09:40:21 -07:00
Nikolaj Bjorner e485d1889c update replace semantics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-08 13:59:13 -07:00
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 879f792125 fix axiomatization of str.replace. Fixes issue #703 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-20 06:13:52 -07:00
Nikolaj Bjorner 2d8325ed43 fix axiomatization of str.replace. Fixes issue #703 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-20 06:05:13 -07:00
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 5b497b6249 reduce set of mainly verbose warnings raised by -Wmaybe-uninitialized and unused variable warnings from release mode builds 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-22 20:25:47 -07:00
Nikolaj Bjorner eab5a84f62 fix issues with int.to.str and seq.len encodings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-02 20:57:52 -07:00
Nikolaj Bjorner 39acd3594a test variants for seq_solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-30 18:15:10 -07:00
Nikolaj Bjorner f03032bd09 updated seq solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-29 14:01:05 -07:00
Nikolaj Bjorner cddf8091b5 strengthen support for int.to.str and length reasoning. Issue #589 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-28 12:36:50 -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 cc3bfe8da2 removing warnings for unused variables, #579 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-17 16:02:08 -07:00
Nikolaj Bjorner 09b8c0e7fa removing warnings for unused variables, #579 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-17 15:59:06 -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 10cdd527ca strengthening length properties for int.to.str. Issue #589 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-15 12:27:04 -07:00
Nikolaj Bjorner d11d9bd1de avoid crash on quantifiers + sequences 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-03 16:24:12 -07:00
Nikolaj Bjorner c3f4124a9f trace down recent exposed regression in goal2sat, incorporate Scott's suggestion on making vector<std::string inaccessible 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-18 14:50:10 -07:00
Nikolaj Bjorner 81232808ba add handling for int.to.str 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-18 11:17:33 -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 33e7640645 disable mb branching pending unit test analysis 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-03 10:53:37 +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 0870b4a5a0 add length coherence check for length = 0 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-25 17:17:34 -07:00
Nikolaj Bjorner 29845d037b fix build break on seq evaluation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-24 08:48:42 -07:00
Nikolaj Bjorner 45fdb95f53 fix performance for model construction, recognize concats of values as a value for pre-processing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-23 17:23:57 -07:00
Nikolaj Bjorner 70f13ced33 make proto-model evaluation use model_evaluator instead of legacy evaluator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-05 10:14:15 -08:00
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 c7abc11ce0 Merge branch 'master' of https://github.com/Z3Prover/z3 into HEAD 2016-02-19 08:23:32 -08:00
Nikolaj Bjorner bff10527d1 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-19 08:23:27 -08:00
Nikolaj Bjorner a073b37ce3 fix bugs in seq solver: add relevancy and axiom 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-18 18:10:16 -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 677b4bf4fe fix #436, adding more length-based propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-07 14:43:53 +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