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17468 commits 29 branches 52 tags 172 MiB
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197 commits

Author SHA1 Message Date
Nikolaj Bjorner
b38abf64d7 use expr_ref on mk_concat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-01 19:30:46 -07:00
Nikolaj Bjorner
fad1e611aa build warnings, updates to reduce-invertible, change is_algebraic tester to use int return type 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-01 12:34:55 -07:00
Thai Trinh
1892d31794 add parameter to enable splitting guided by length constraints 2018-06-27 18:10:40 +08:00
Thai Trinh
aacb7289be merge with Z3Prover/master 2018-06-25 19:44:46 +08:00
Thai Trinh
07afce6a64 pass vectors by reference 2017-12-16 20:44:07 +08:00
Thai Trinh
fe503d95ec simplify code 2017-12-15 20:01:03 +08:00
Thai Trinh
c07a63cf8e coalesce seq.unit into string in mk_skolem 2017-12-12 05:00:34 +08:00
Thai Trinh
8bf4a15c27 update "seq.align" skolem function 2017-12-09 00:47:48 +08:00
Thai Trinh
c33dfc80e0 Merge branch 'master' of https://github.com/Z3Prover/z3 into Z3Prover-master 
Conflicts:
	src/smt/theory_seq.cpp
 2017-12-08 19:02:24 +08:00
Nikolaj Bjorner
faebbc5384 add shortcuts for concatenation and equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-12-08 16:17:04 +05:30
Thai Trinh
3a5c30bd9b use obj_ref_map 2017-12-08 18:36:20 +08:00
Thai Trinh
b6806eb1c2 Add more splitting rules for string equations (including rules based on length constraints) 2017-12-08 04:34:50 +08:00
Nikolaj Bjorner
77b74ddb88 fix #1366 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-11-25 17:55:20 -08:00
Nikolaj Bjorner
d520557ad9 fix #1233 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-11-21 11:52:15 -08:00
Christoph M. Wintersteiger
00651f8f21 Tabs, formatting. 2017-09-17 14:54:09 +01:00
Nikolaj Bjorner
4d8290ebc2 update to theory_seq following examples from PJLJ 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-30 14:04:02 -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