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5738 commits 24 branches 48 tags 158 MiB
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111 commits

Author SHA1 Message Date
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
e3f0aff318 address ubuntu warning and add shortcuts for maxsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-03 16:22:13 -07:00
Douglas B. Staple
87b7674245 Removed complete() from handling of y.is_zero() in process_power 2016-08-05 14:11:51 -03:00
Nikolaj Bjorner
f30fb7639e Merge branch 'master' of https://github.com/Z3Prover/z3 2016-07-13 20:32:24 -07:00
Nikolaj Bjorner
3989d238c0 fix bugs exposed in #677. to_int(x) has the semantics that to_int(x) <= x, and to_int(x) is the largest integer satisfying this inequality. The encoding in purify_arith had it the other way x <= to_int(x) contrary to how to_int(x) is handled elsewhere. Another bug in theory_arith for mixed-integer linear case was also exposed. Fractional bounds on expressions of the form to_int(x), and more generally on integer rows were not rounded prior to internalization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-13 20:32:18 -07:00
Nikolaj Bjorner
3a70b6aab4 fix model generation, add rewrite rules for sin(acos(x)) reduction to help model validation. Issue #680 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-13 11:12:27 -07:00
Nikolaj Bjorner
247e94a7c0 fix model generation for cos/sin transformation. Issue #680 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-13 10:34:12 -07:00
Nikolaj Bjorner
9f99482f07 fix model generation for cos/sin transformation. Issue #680 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-13 10:29:31 -07:00
Nikolaj Bjorner
63f89f8c45 add sin/cos conversions for #680 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-12 15:12:40 -07:00
Fabian Wolff
6eaab00e83 Fix spelling errors 2016-07-09 11:46:43 +02:00
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
Christoph M. Wintersteiger
18340b0e95 fix for pb2bv_model_converter 2016-05-26 18:42:57 +01:00
Christoph M. Wintersteiger
1fe4a82c76 Added implementation of pb2bv_model_converter::translate 
Fixes #623
 2016-05-26 18:39:51 +01:00
Nikolaj Bjorner
d12efb6097 remove min/max, use qmax; disable cancellation during model evaluation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-19 13:10:43 -07:00
Nikolaj Bjorner
1aa3fdab8a remove min/max, use qmax; disable cancellation during model evaluation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-19 13:04:20 -07:00
Nikolaj Bjorner
3a6e6df4f5 fix unused-but-set-variable warnings reported in #579 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-18 11:02:10 -07:00
Nikolaj Bjorner
2033719c14 fix optimization pre-processing reported by Gereon Kremer 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-04-09 20:58:57 -07:00
Nikolaj Bjorner
7eec68c954 add handling for distinct to bit-blaster 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-28 11:22:54 -07:00
Nikolaj Bjorner
f175f864ec merge useful utilities from qsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-19 12:01:44 -07:00
Nikolaj Bjorner
5994c5a948 fix partial model tracking over cancellation/exceptions, reported by August Shi. Fix regression test for fp-to-real, reset the pre-processor in inc_sat_solver on exceptions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-07 16:42:29 -08:00
Nikolaj Bjorner
ee0dbf34f0 add completion (introducing negative root function symbols) to address regression introduced when fixing unsound handling of negative roots 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-16 00:49:06 +02:00
Nikolaj Bjorner
a7e2fb31e3 updates to resource exceptions, update master possibly handle pull request issue 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-12 11:36:49 -08:00
Nikolaj Bjorner
2a051719d8 cleanup deprecated critical sections, fix cancellation for par_or_else tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-12 09:43:00 -08:00
Nikolaj Bjorner
521271e559 moving to resource managed cancellation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-11 17:46:22 -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
035f2bb0da disable unsound simplification of root objects, and incorrect evaluation of negative even roots 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-09 08:41:59 -08:00
Nikolaj Bjorner
aa777bd5c6 Fix for #343. Optimizations introduced on 8-10-2015 were too agressive. Remove unreferened variable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-01 13:43:47 -08:00
Nikolaj Bjorner
9fa4bf2f8f Fix for #343. Optimizations introduced on 8-10-2015 were too agressive 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-12-01 13:41:57 -08:00
Nikolaj Bjorner
d6d301c5eb fix for mising handling of quantifiers in tactic. Bug #324 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-17 18:38:37 -08:00
Nikolaj Bjorner
4be3926daa use signed character type declarations for cross platform compilation. Fixes issue #210 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-09-05 16:30:58 -07:00
Nikolaj Bjorner
b4d0e6076e change behavior on allocation excess to process exit to avoid memory smashes on exception unsafe code blocks. Fixes issue #175 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-09-02 16:12:19 -07:00
Nikolaj Bjorner
546a9b8f03 revising pd-maxres 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-23 10:53:39 -07:00
Nikolaj Bjorner
980e74b4ff add tactic to recognize small discrete domains and convert them into bit-vectors 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-20 06:39:11 -07:00
Nikolaj Bjorner
40eb7c9c84 fix 0-1 translation bug reported by Klaus Becker 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-10 16:21:02 +02:00
Nikolaj Bjorner
aa431bb67f ensure pb on lex > 1 constraints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-08 14:10:11 +02:00
Nikolaj Bjorner
8505ca843b recognize more pb patterns 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-08-08 13:39:39 +02:00
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
f145ceecb4 remove default failure on proof mode fixes #121 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-07-08 22:12:41 -07:00
Nikolaj Bjorner
b08ccc7816 added missing Copyright forms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-06-10 11:54:02 -07:00
Christoph M. Wintersteiger
24a5ff825a Fixed collect_param_descrs in pb2bv tactic. 2015-06-08 15:36:00 +01:00
Nuno Lopes
2733899c01 remove unused var 
Signed-off-by: Nuno Lopes <nlopes@microsoft.com>
 2015-06-05 09:30:44 +01:00
Nikolaj Bjorner
7161d6c150 fixes crash from issue #119 
Signed-off-by: Nikolaj Bjorner <nbjorner@hotmail.com>
 2015-06-02 08:48:37 -07:00
Christoph M. Wintersteiger
fec815b41e Various variable renamings to avoid conflicts with previously defined local variables, function parameters, or members (Visual Studio 2015 warnings). 2015-05-29 18:13:39 +01:00
Nikolaj Bjorner
552bba2c8c decongest critical section in lia2card-tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-05-17 22:59:11 +01:00
Nikolaj Bjorner
e8811748d3 fix regressions in nl/smt 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-05-16 19:08:37 +01:00
Nikolaj Bjorner
2e627e78bc filter tactic on proofs and cores 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-05-10 14:55:28 -07:00
Nikolaj Bjorner
f5c048775b add facility to solve QF_NRA + QF_UF(and other theories) in joint solver to allow broader use of QF_NRA core 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-05-10 09:42:11 -07:00
Nikolaj Bjorner
e5716501e8 add ddnf tests, add facility to solve QF_NRA + QF_UF(and other theories) in joint solver to allow broader use of QF_NRA core 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-05-09 19:47:00 -07:00
Nikolaj Bjorner
839e3fbb7c add ddnf tests, add facility to solve QF_NRA + QF_UF(and other theories) in joint solver to allow broader use of QF_NRA core 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-05-09 19:40:34 -07:00
Nikolaj Bjorner
9377779e58 merge with unstable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-04-30 10:40:03 -07:00