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6095 commits 24 branches 48 tags 158 MiB
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70 commits

Author SHA1 Message Date
Nikolaj Bjorner
f015e3e4cc fix bug in propagation of parameters to combined solvers 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-31 17:17:58 -08:00
Nikolaj Bjorner
5cb21924ad ensure that FD logic understands pb from command context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-17 16:02:54 -08:00
Nikolaj Bjorner
024082a45f adding preferred sat, currently disabled, to wmax. Fixing issue #815 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-30 09:52:05 -08:00
Nikolaj Bjorner
51a4085910 check for logic in solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-04 15:19:11 +00:00
Nikolaj Bjorner
f61600d1d8 fixing unsat core extraction for tactics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-02 14:14:55 +00:00
Nikolaj Bjorner
305e080239 enable unsat core extraction in nlsat_tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-01 17:57:28 +01:00
Nikolaj Bjorner
3714e520be fix performance bottlnecks: gc of literals walk through potentially huge watch-lists, avoid user-push/pop around calls to solver2tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-28 08:27:11 -07:00
Nikolaj Bjorner
b1d673e3eb catch cancellation exceptions, return undef 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-27 16:34:26 -07:00
Nikolaj Bjorner
24fc19ed58 speed up consequence finding by avoiding local search whenver assumption level is reached during the initial phase 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-27 08:15:39 -07:00
Nikolaj Bjorner
4bd83724dd remove conflict on false disequality, introduced regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-26 19:15:05 -07:00
Nikolaj Bjorner
461e88e34c additional robustness check for incremental sat solver core when it recieves interpreted constants, added PB equality to interface and special handling of equalities to adddress performance gap documented in #755 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-25 20:32:13 -07:00
Nikolaj Bjorner
e4d2c5867a remove dead (and incorrect) code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-24 15:52:47 -07:00
Nikolaj Bjorner
8d2b70a5e2 better encodings for at-most-1, #755 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-10 23:46:03 -07:00
Nikolaj Bjorner
619cce0a52 add mutex preprocessing to maxsat, add parsing functions to C++ API 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-07 12:42:08 -07:00
Nikolaj Bjorner
f452895f5f add mutex pass 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-04 14:45:23 -07:00
Christoph M. Wintersteiger
f54a7db108 Added debug traces. 2016-08-09 16:36:49 +01:00
Nikolaj Bjorner
491b3b34aa tune consequence finding. Factor solver pretty-printing as SMT-LIB into top-level 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-03 11:14:29 -07:00
Nikolaj Bjorner
7346098895 fix unsat core extraction code in smt_context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-30 11:22:34 -07:00
Nikolaj Bjorner
7d545d902d switch to specialized consequence generator in combined_solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-29 17:36:11 -07:00
Nikolaj Bjorner
8221a09659 fast path for antecedent extraction in smt_context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 16:49:19 -07:00
Nikolaj Bjorner
14f29e7265 add basic built-in consequence finding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 11:20:17 -07:00
Nikolaj Bjorner
b7de813c63 set solver on simplify command 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-27 15:35:44 -07:00
Nikolaj Bjorner
017165c474 fix bug with model completion and remove spurious std::cout 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-24 09:02:12 -07:00
Nikolaj Bjorner
67ea78a4a5 Add basic MARCO example 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-24 08:00:23 -07:00
Nikolaj Bjorner
914bf2ff3b extend constant folding for bit-vector overflow/underflow operators, #657 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-24 07:43:05 -07:00
Nikolaj Bjorner
c72ed3e6b4 update core minimization code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-23 21:39:28 -07:00
Nikolaj Bjorner
c7ff05cc78 enable core minimization with qsat in case it turns out to be useful 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-12 15:58:12 -07:00
Nikolaj Bjorner
9f5a117443 move mus to solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-10 16:24:14 -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
e29adbf304 fix issues #581: nested timeouts canceled each-other 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-30 11:18:34 -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
3d7eb12117 tracking use of assumptions in tactics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-09 21:33:08 -08:00
Nikolaj Bjorner
9743c188da add exception handling for making solver-1 discontinuation transparent, thanks to Martin, #497 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-08 17:00:12 -08:00
Nikolaj Bjorner
49d0e28621 allow parameters to overwrite logic, fixes bug report by Nuno 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-07 10:44:06 -08:00
Nikolaj Bjorner
b352d43e50 fix bugs exposed by Chris' sequence unit tests. Improve diagnostics for reason-unknown in combined solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-28 08:50:13 -08:00
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
4132fc2d91 ensure limit children are safe for race conditions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-12 10:18:51 -08:00
Nikolaj Bjorner
96d1066c6a reworking cancellation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-11 16:43:48 -08:00
Nikolaj Bjorner
baee4225a7 reworking cancellation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-11 16:21:24 -08:00
Nikolaj Bjorner
b4cb51cdb3 working on Forking/Serializing a z3 Solver #209 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-06 17:29:24 -08:00
Nikolaj Bjorner
7f517c625f have solver pretty print declarations, include also datatype declarations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-07 08:48:24 +02:00
Nikolaj Bjorner
a3c43c34fb change default behavior of solver pretty printer to include declarations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-06 18:57:11 +02:00
Christoph M. Wintersteiger
ca4a7ca74e style 2015-08-01 14:29:45 +01:00
Nikolaj Bjorner
4bc044c982 update header guards to be C++ style. Fixes issue #9 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-07-08 23:18:40 -07:00
Nikolaj Bjorner
949c21ca08 enable incremental sat for QF_BV 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-06-21 02:23:56 -07:00
Nikolaj Bjorner
52619b9dbb pull unstable 
Signed-off-by: Nikolaj Bjorner <nbjorner@hotmail.com>
 2015-04-01 14:57:11 -07:00
Christoph M. Wintersteiger
9b137d54d3 Bugfix and new examples for implicit assumptions in Z3_solver_assert_and_track. Thanks to Amir Ebrahimi for reporting this issue! 
(See http://stackoverflow.com/questions/28558683/modeling-constraints-in-z3-and-unsat-core-cases)

Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
 2015-02-18 16:25:27 +00:00
Nikolaj Bjorner
e6725b2344 merge unstable into opt 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-09-26 12:12:24 -07:00
Nikolaj Bjorner
904ab4bf9e address race condition in cleanup methods 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-09-05 11:18:34 -07:00
Ken McMillan
51aa10821e fixed pop issue and interpolation proof mode issue 2014-08-26 13:46:53 -07:00