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6327 commits 43 branches 51 tags 169 MiB
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356 commits

Author SHA1 Message Date
Nikolaj Bjorner
7e1fae418a fix #1005, disable expansion of regular expression range to union as it degrades performance significantly 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-05 10:59:47 -04:00
Murphy Berzish
46ac718790 theory_str frontend changes 2017-04-26 17:24:05 -04:00
Nikolaj Bjorner
66e61b8a31 issues #963 #912 2017-04-17 03:06:38 -07:00
Nikolaj Bjorner
48638c6f1e fix for #975, add mask to ensure character encoding is unique within range of bits used for encoding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-04-15 09:34:13 +07:00
Christoph M. Wintersteiger
b67c1c5501 Fixed valgrind warning. Fixes #972 2017-04-10 16:28:41 +01:00
Christoph M. Wintersteiger
27a1758857 Added rewriter.ignore_patterns_on_ground_qbody option to disable simplification of quantifiers that have their universals appear only in patterns, but otherwise have a ground body. 2017-04-07 21:19:20 +01:00
Nikolaj Bjorner
582880346e add index option to 'eval' command for box objectives. Issue #955 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-31 09:22:56 -07:00
Christoph M. Wintersteiger
d10dec2218 Removed unused variable 2017-03-24 14:31:06 +00:00
Nikolaj Bjorner
e342b87921 Merge pull request #942 from mtrberzi/str-extract-semantics 
alternate str.extract semantics in seq_rewriter
 2017-03-21 10:48:06 -07:00
Murphy Berzish
6804c88b66 make seq.extract rewrite type-generic 2017-03-21 12:54:06 -04:00
Nikolaj Bjorner
ca4ae171ea remove unsound simplification in prefix #949 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-21 07:40:35 -06:00
Nikolaj Bjorner
05c267b8d8 make seq.at operations generic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-14 15:37:47 -07:00
Murphy Berzish
34717a7b6e str.extract semantics fix 2017-03-14 14:14:46 -04:00
Murphy Berzish
5c9d7538a0 add alternate str.at semantics check in seq_rewriter 
this rewrites to empty string if the index is negative or beyond the length of the string,
which is consistent with CVC4's semantics for this term
 2017-03-13 14:39:12 -04:00
Nikolaj Bjorner
338193548b fixing build break, adding fixedpoint object to C++ API 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-10 22:52:55 +01:00
Nikolaj Bjorner
6f68355fbc Merge branch 'master' of https://github.com/Z3Prover/z3 2017-03-08 21:33:43 -08:00
Nikolaj Bjorner
996c0f0666 fix type on exception message 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-25 16:14:50 -08:00
Nikolaj Bjorner
b0dd3f3238 add recursive function graphs to model, adapt rewriter to bypass branches whose evaluation is redundant 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-16 13:58:12 -08:00
Nikolaj Bjorner
24eae3f6e0 fix crash with unary xor #870 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-15 12:06:56 -08:00
Nikolaj Bjorner
4bcf1bf2f6 fix debug build, unused variable warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-21 10:44:49 -08:00
Nikolaj Bjorner
df492e200f merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-21 10:04:02 -08:00
Nikolaj Bjorner
8d18fd075e remove sources for unused variable warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-21 09:54:45 -08:00
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
7cc093eee0 Add rewrite rule for property encoded in #812 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-11 11:05:12 +01:00
Nikolaj Bjorner
32c63ce4cd address other warnings per input from delcypher 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-10 17:23:59 +01:00
Nikolaj Bjorner
8e6600c6be add python API for newly exposed regex constructors 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-09 09:09:03 +01:00
Nuno Lopes
e697d3e810 remove 2 outdated comments 2016-12-01 14:10:31 +00:00
Nikolaj Bjorner
7a4c20698f fix handling of AC operator ++ on regular expressions. Issue #804 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-22 13:02:17 -08:00
Christoph M. Wintersteiger
a97358965b Fixed interruption/cancelation issue in rewriter. 2016-11-17 16:28:49 +00:00
Nikolaj Bjorner
1600823435 fix perf bug reported in #790 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-17 05:38:52 +02:00
Christoph M. Wintersteiger
824ba14977 Disabled some ITE rewrite rules that were applied by default, but too expensive. Added re-computation of subterm occurrences in ctx_simplify_tactic. (Performance fixes for QF_LIA benchmarks). 2016-11-04 13:39:53 +00:00
Christoph M. Wintersteiger
a3e915fbea Whitespace 2016-11-04 13:37:14 +00:00
Nikolaj Bjorner
be9d5c7088 fix evaluator for array store expressions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-02 21:33:24 +00:00
Nikolaj Bjorner
ff75f88c4f fix memory abuse in internalization in inc-sat-solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-31 22:25:58 +01:00
Nikolaj Bjorner
ca309341c3 fixing cancellation code paths for inc_sat_solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-27 22:07:46 -07:00
Nikolaj Bjorner
41deae52c6 fix enum2bv to handle singleton enumeration types, differentiate disequality conflicts for theories that handle disequalities vs. theories that don't 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-27 13:35:53 -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
da4289fadc fix unit tests for pb 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-25 20:47:48 -07:00
Christoph M. Wintersteiger
8c5c564d6c fixed initialization order warning in pb2bv_rewriter 2016-10-25 14:31:29 +01:00
Nikolaj Bjorner
fefd00aa49 fix sign of constant in pb constraint 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-24 20:28:56 -07:00
Nikolaj Bjorner
b82b53dc34 add handling of pseudo-boolean inequalities that use if-expressions over Booleans and arihmetic instead of built-in PB predicates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-24 17:41:52 -07:00
Nikolaj Bjorner
6cf54a226e a more efficient encoding for pseudo-Boolean inequality constraints into bit-vectors 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-24 08:25:02 -07:00
Nikolaj Bjorner
b476784f23 add missing file 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-23 20:52:44 -07:00
Nikolaj Bjorner
3778048eb4 add bounded-int and pb2bv solvers to fd_solver, use sorting networks for pb2bv rewriter when applicable, hoist to pb2bv_rewriter module and remove it from the pb2bv_tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-23 20:31:59 -07:00
Nikolaj Bjorner
23b9d3ef55 fix at-most-1 constraint compiler bug 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-22 18:50:16 -07:00
Nikolaj Bjorner
d060359f01 add fd solver for finite domain queries 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-18 22:34:34 -04:00
Nikolaj Bjorner
4fda2adec8 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-10-16 15:46:50 -04:00
Nikolaj Bjorner
58198d7cb6 add consequence finding to inc-sat-solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-16 15:45:39 -04:00
Nikolaj Bjorner
aec59e4ff7 add consequence finding to inc-sat-solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-16 15:43:28 -04:00
Christoph M. Wintersteiger
7e705a2d32 Bug fixes for underspecified FP operations. 2016-10-15 18:35:39 +02:00