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4653 commits 23 branches 48 tags 157 MiB
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3780 commits

Author SHA1 Message Date
Nikolaj Bjorner 88362a1c3a fix bugs in sequence extraction from NFA 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 16:32:43 +05:30
Nikolaj Bjorner 14c19fe928 add parameter validation to sequence expressions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 10:39:21 +05:30
Nikolaj Bjorner 150c5c283d update re simplification 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 10:11:39 +05:30
Nikolaj Bjorner a295dd48dc add seq_rewriter to model_evaluator, remove th_rewriter additional step in validator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 04:02:48 +05:30
Nikolaj Bjorner 7cbd59bf06 enhance model validation to invoke rewriter if result isn't true using the simplify-based model evaluator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 03:40:33 +05:30
Nikolaj Bjorner 01fd3c919b fix tout -> out. Tune generation of automata transitions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 03:32:27 +05:30
Nikolaj Bjorner 2d41b0e29b fix tout -> out. Tune generation of automata transitions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 03:31:30 +05:30
Christoph M. Wintersteiger 0f082578cb Debug-fix for theory_seq. Fixes #418. 2016-01-14 13:07:48 +00:00
Nikolaj Bjorner 3ff97357a3 fix back rewriting for concat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-14 11:22:11 +01:00
Nikolaj Bjorner de9c959241 add support for re.nostr, re.all, fix bug in disequality handling of sequences, update signature of loop to handle integer arguments and variable arguments 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-14 10:56:03 +01:00
Nikolaj Bjorner a81c7c48d0 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-14 00:56:52 +01:00
Nikolaj Bjorner 2f0a049df8 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-01-13 20:13:29 +01:00
Nikolaj Bjorner e0215400e2 add empty/full regular languages, escape sequence fixes, check cancellation inside simplifier 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-13 20:13:17 +01:00
Christoph M. Wintersteiger 357ec9e7d1 Changed FP significand/exponent functions to return non-normalized results. Clarified function remarks. Relates to #383. 2016-01-13 16:32:32 +00:00
Nikolaj Bjorner 57e1d4dc1f model generation with strings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-13 10:39:38 +01:00
Nikolaj Bjorner 9909c056f0 add range / loop handling for re. Fix regression reading mixed numerals reported by Trentin 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-13 00:49:31 -08:00
Nikolaj Bjorner 9a6fe93e6c re-enable feature that lets Z3 solver mixed integer/real constraints with additional information tha texpressions with sort real can only take integer values. Fixes regression on epsilon.smt2 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 12:42:18 -08:00
Nikolaj Bjorner e2d54940b4 revert mixed integer/real handling pending fix to equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 12:11:27 -08:00
Nikolaj Bjorner f8971362c8 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-01-12 11:19:04 -08:00
Nikolaj Bjorner 22fbed18cc fix regressions exposed by build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 11:18:52 -08:00
Christoph M. Wintersteiger f093ebe44c Optimization for initialization of mpf's from tiny reals. 2016-01-12 19:06:53 +00:00
Nikolaj Bjorner db746e0c2f fix more unused variable warning messages 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 09:52:16 -08:00
Nikolaj Bjorner 985fc50961 breaking regression tests: ensure that model values are of the sort of the original expression. 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 09:48:43 -08:00
Nikolaj Bjorner db71563478 fix build compiler warnings on OSX 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 09:36:01 -08:00
Nikolaj Bjorner 01c3e02e99 fix query for non-relational engines 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-12 07:57:10 -08:00
Nuno Lopes 08139d1ab1 fix build with gcc 2016-01-12 08:48:41 +00:00
Nikolaj Bjorner 3bf8b17b96 remove std::cout 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-11 19:22:11 -08:00
Nikolaj Bjorner 739c90779b Merge branch 'master' of https://github.com/Z3Prover/z3 2016-01-11 19:16:16 -08:00
Nikolaj Bjorner e22ac712b0 add model construction for disequations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-11 16:53:29 -08:00
Nikolaj Bjorner 79a5b133d7 fix debugging code in ast.cpp to take into account that literals may be repeated 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-11 11:04:44 -08:00
Christoph M. Wintersteiger d4efa3753c Optimization for real to float conversion. Relates to #383. 2016-01-11 18:54:07 +00:00
Nikolaj Bjorner a156028d82 pin expressions per Sarah Winkler's memory leak report 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-11 09:46:10 -08:00
Nikolaj Bjorner d4c98c1ab4 Corrected fix to #354: The parameters got shared between the MBQI checker and main context, overriding m_array_laziness to 0 which caused missing propagations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-11 09:38:05 -08:00
Nikolaj Bjorner 131f9e2247 change queries to take function names instead of arbitrary predicates. This allows to bypass issues with having arbitrary query expressions compiled in arbitrary ways to auxiliary predicates where names of bound variables are reshuffled. See also Stackoverflow http://stackoverflow.com/questions/34693719/bug-in-z3-datalog 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-10 20:43:41 -08:00
Nikolaj Bjorner 082dcda7f7 Fix Issue #405: Horn normal form ignores implication 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-10 19:16:59 -08:00
Nikolaj Bjorner fce286db91 Issue #354. Fix unsoundness in Array theory based on missing propagation of selects over ite expressions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-10 17:11:12 -08:00
Nikolaj Bjorner 0df4931c4b dealing with issue #402 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-09 15:43:47 -08:00
Nikolaj Bjorner 20cfbcd66b dealing with issues #402 #399 #258 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-09 13:29:44 -08:00
Nikolaj Bjorner fc4260e018 enable Horner evaluation also for mixed-integer constraints now that ast-manger inserts coercions on the fly. Avoids loop for issue #399, but with this alone results in unknown status 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-09 10:01:44 -08:00
Nikolaj Bjorner 03cef7b03c add some conveniences for expressing string constraints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-08 16:19:32 -08:00
Nikolaj Bjorner e1ade258a0 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-01-08 16:07:58 -08:00
Nikolaj Bjorner 4939957f6a check that disequations are solved 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-08 16:07:42 -08:00
Nikolaj Bjorner 52284922a0 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-01-08 13:39:34 -08:00
Nikolaj Bjorner 9fb3d36961 pin expressions during substitution. Issue #367 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-08 13:39:23 -08:00
Nikolaj Bjorner 3d01246f71 Skip propagation on bits that have not (yet) been fixed by the SAT core: congruence closure for bits has not necessarily propagated to all bit positions when a bit in a congruence class gets fixed. 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-08 08:17:18 -08:00
Nikolaj Bjorner 98f750f90d ml build failure, issue #403 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-07 20:37:47 -08:00
Nikolaj Bjorner 183d3821ce ml build failure, issue #403 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-07 20:14:43 -08:00
Nikolaj Bjorner 17a32a4e5f ml build failure 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-07 20:14:16 -08:00
Nikolaj Bjorner 023c564839 Issue #406 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-07 20:10:54 -08:00
Nikolaj Bjorner 0e6aaf0211 Issue #407 build break 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-07 20:05:49 -08:00