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Author SHA1 Message Date
Nikolaj Bjorner 9438ff848f moved files 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-25 17:44:57 -07:00
Nikolaj Bjorner ebcacaa26d update new assertions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-25 17:44:33 -07:00
Christoph M. Wintersteiger 799fb4a0d1 Revert "Eliminated the dependency of the macro-finder on the simplifier." 
This reverts commit 8310b24c52.
 2017-08-24 21:26:09 +01:00
Christoph M. Wintersteiger 8310b24c52 Eliminated the dependency of the macro-finder on the simplifier. 2017-08-24 20:34:11 +01:00
Nikolaj Bjorner 5141477809 remove dead code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-24 11:16:48 -07:00
Nikolaj Bjorner 23d1c0a9a8 move pull/push files 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-24 11:13:01 -07:00
Nikolaj Bjorner 7dd28781ab remove simplifier dependencies from cmakelist.txt files 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-23 16:33:36 -07:00
Nikolaj Bjorner e5826b957f fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-23 09:01:25 -07:00
Nikolaj Bjorner ce04c18a7a trying to get rid of last simplifier dependency in macros 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-22 22:14:13 -07:00
Nikolaj Bjorner e2b46257d6 reducing dependencies on simplifier 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-22 15:09:34 -07:00
Nikolaj Bjorner 276fdd0e97 register auxiliary constants from projection operation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-20 08:51:24 -07:00
Nikolaj Bjorner 07bc19b489 add documentation to string rewriting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-14 07:19:04 -07:00
Nikolaj Bjorner a39b0b201a another fix to str.to.int/int.to.str semantics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-13 17:27:34 -07:00
Nikolaj Bjorner fb17362dff fix string rewriting according to definition. Relates to examples in #1202 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-13 17:21:38 -07:00
Nikolaj Bjorner ead704f52f handle undefined constant cases for int.to.str 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-13 17:13:10 -07:00
Nikolaj Bjorner c4083c367a update handling of contains constraints taking string literals into account 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-12 19:14:55 -07:00
Nikolaj Bjorner 50e9b371d9 inc version 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-12 17:52:58 -07:00
Nikolaj Bjorner 85cdfd885f address bug reported in #1196 and include additional ad-hoc rewrites to handle some string cases 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-12 17:41:18 -07:00
Nikolaj Bjorner f99048f3e7 rewrite to address some cases like #1203, updates to division handling in NRA 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-12 13:24:54 -07:00
Nikolaj Bjorner 7b47b0380e update Ackerman reduction for division to make Andre and Nathan happy 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-10 23:43:21 +02:00
Nikolaj Bjorner 2b82fd5d0c updated include directives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-01 10:51:47 -07:00
Nikolaj Bjorner 063b6e9ea5 Merge branch 'master' of https://github.com/Z3Prover/z3 2017-07-31 13:24:57 -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
Arie Gurfinkel 15451ae858 extra flags to control quant_hoist 2017-07-31 14:13:45 -04:00
Nikolaj Bjorner b482dbd589 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-07-27 17:02:27 -07:00
Nikolaj Bjorner 30b0d5ba13 Merge branch 'master' of https://github.com/z3prover/z3 2017-07-24 10:49:54 -07:00
Nikolaj Bjorner 08524a2d90 cleanup for warning message 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-07-01 11:47:17 -07:00
Nikolaj Bjorner a28a8304b7 Dev (#56) 
* introduce int_solver.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* add int_solver class

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* track which var is an integer

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add queries for integrality of vars

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* resurrect lp_tst in its own director lp

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add file

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add_constraint has got a body

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* fix add_constraint and substitute_terms_in_linear_expression

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* after merge with Z3Prover

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* adding stub check_int_feasibility()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* Dev (#50)

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* small fix in lar_solver.cpp

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* adding some content to the new check_int_feasibility()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* Dev (#51)

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding more nlsat

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* nlsat integration

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding constraints

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* add missing initialization

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* test

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* Dev (#53)

* change in a comment

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* Disabled debug output

* removing FOCI2 interface from interp

* remove foci reference from cmakelist.txt

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding more nlsat

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* nlsat integration

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding constraints

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* add missing initialization

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* debugging nra

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* updates to nra_solver integration to call it directly from theory_lra instead of over lar_solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* n/a

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* integrate nlsat

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* tidy

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* preserve is_int flag

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* remove a debug printout

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* Dev (#54)

* change in a comment

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* Disabled debug output

* removing FOCI2 interface from interp

* remove foci reference from cmakelist.txt

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* initial skeletons for nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding more nlsat

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* nlsat integration

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding constraints

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* add missing initialization

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* adding nra

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* debugging nra

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* updates to nra_solver integration to call it directly from theory_lra instead of over lar_solver

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* n/a

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* integrate nlsat

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* tidy

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* use integer test from lra solver, updated it to work on term variables

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix equality check in assume-eq

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix model_is_int_feasible

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* untested gcd_test()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* call fill_explanation_from_fixed_columns()

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add the call to pivot_fixed_vars_from_basis() to int_solver.cpp::check()

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* port more of theory_arith_int.h

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* use statistics of lar_solver by theory_lra.cpp

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* port more code to int_solver.cpp

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add an assert

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* more int porting

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* fix a bug in pivot_fixed_vars_from_basis

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* small change

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

* implement find_inf_int_base_column()

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* catch unregistered vars in add_var_bound

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add a file

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* compile for vs2012

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* fix asserts in add_var_bound

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* fix the lp_solver init when workig on an mps file

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* towards int_solver::check()

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* change in int_solver::check() signature

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

* add handlers for lia moves

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* spacing

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-06-28 13:12:12 -07:00
Nikolaj Bjorner 244cbc2638 ensure that auxiliary PB booleans are recognized during rewriting. Fixes segementation fault #1113, but does not address performance issues with quantifiers and optimization combinations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-06-26 10:04:50 -07:00
Nikolaj Bjorner 5752830f71 bug fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-06-22 15:01:12 -07:00
Dan Liew 4b517b96df [CMake] Move CMake files into their intended location so the 
`contrib/cmake/bootstrap.py` script no longer needs to be executed.

The previous location of the CMake files was a compromise proposed
by @agurfinkel in #461. While this has served us well (allowing progress
to be made) over time limitations of this approach have appeared.

The main problem is that doing many git operations (e.g. pull, rebase)
means the CMake files don't get updated unless the user remembers to
run the script. This can lead to broken and confusing build system
behaviour.

This commit only does the file moving and necessary changes to
`.gitignore`. Other changes will be done in subsequent commits.
 2017-06-12 11:59:00 +01:00
Nikolaj Bjorner 19d4b0a97a resolve conflicts 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-06-02 10:38:37 -07:00
Nikolaj Bjorner 3ce82ea8ce merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-06-02 10:37:22 -07:00
Christoph M. Wintersteiger 596652ed36 Merge branch 'master' of https://github.com/Z3Prover/z3 2017-05-31 18:35:52 +01:00
Christoph M. Wintersteiger a7d5bb7b36 Tabs 2017-05-31 12:18:00 +01:00
Nikolaj Bjorner 7d245be4e1 enable exposing internal solver state on interrupted solvers 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-30 17:33:27 -07:00
Nikolaj Bjorner e0a86ccc1a add lrb/chb and experiment with them 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-28 10:48:31 -07:00
Nikolaj Bjorner 1086eaaa1f debugging nra 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-24 21:46:19 -07:00
Nikolaj Bjorner edb164587f get rid of a simplifier dependency 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-23 10:12:32 -07:00
Nikolaj Bjorner 77b2a015a2 rewrite pb 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-22 17:47:46 -07:00
Nikolaj Bjorner f9f0b2221d bug fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-22 14:27:34 -07:00
Nikolaj Bjorner f698efa403 Merge branch 'master' of https://github.com/z3prover/z3 into opt 2017-05-22 12:59:36 -07:00
Nikolaj Bjorner 71eb7e81b5 bug fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-22 12:52:53 -07:00
Nikolaj Bjorner d1fec7c029 bug fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-21 15:39:05 -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 ceec81de0b simplify code, issue #1028 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-16 08:32:08 -07:00
Nikolaj Bjorner 7fab670719 fix regression, issue #1028 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-16 08:21:32 -07:00
Nikolaj Bjorner d1cfc53495 fix for #1015 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-10 19:40:00 -07:00
Nikolaj Bjorner c49550ff2d enable pb solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-07 18:03:38 -07:00
Nikolaj Bjorner b915f78281 merge with master 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-07 17:05:57 -07:00
Murphy Berzish 8029b6b889 Merge branch 'upstream-master' into develop 2017-05-05 14:44:29 -04:00
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 ab4fbe40b6 cleanup 2017-05-03 17:45:56 -04:00
Murphy Berzish d2ae94935e Merge branch 'upstream-master' into develop 
Conflicts:
	src/ast/rewriter/seq_rewriter.cpp
	src/ast/seq_decl_plugin.h
 2017-04-28 13:43:14 -04:00
Nikolaj Bjorner 8205b45839 initial integration of opt 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-04-27 19:13:00 -07:00
Nikolaj Bjorner aedabfff7a disable newer pb encoding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-04-27 11:24:30 -07:00
Murphy Berzish 46ac718790 theory_str frontend changes 2017-04-26 17:24:05 -04:00
Murphy Berzish 06cd07e3c2 Merge branch 'theory-assumptions' into develop 
Conflicts:
	src/smt/smt_context.cpp
	src/smt/smt_context.h
	src/smt/smt_theory.h
 2017-04-22 13:31:43 -04:00
Nikolaj Bjorner 66e61b8a31 issues #963 #912 2017-04-17 03:06:38 -07:00
Nikolaj Bjorner 41e1b9f3fe gt encoding of pb constraints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-04-16 12:07:16 +09:00
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
Murphy Berzish a8935e99bc Merge branch 'upstream-master' into develop 2017-04-04 16:47:30 -04:00
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
Murphy Berzish 82d472a227 Merge remote-tracking branch 'upstream/master' into develop 2017-03-23 13:35:58 -04:00
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
Murphy Berzish 8021d63539 remove legacy str_decl_plugin and str_rewriter classes; these have been unified with sequence-compatible equivalents 2017-03-15 15:25:48 -04:00
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 9659f08322 Merge branch 'str-extract-semantics' into develop 2017-03-14 14:14:53 -04:00
Murphy Berzish 34717a7b6e str.extract semantics fix 2017-03-14 14:14:46 -04:00
Murphy Berzish 94d5f242b8 Merge branch 'str-at-semantics' into develop 2017-03-13 14:40:40 -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
Murphy Berzish c198bc5863 fix re.range rewrite for theory_str 2017-03-10 13:13:45 -05:00
Nikolaj Bjorner 05c5b3b07b merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-09 22:45:52 +01:00
Nikolaj Bjorner 5f5819f029 fix xor handling, and defaults for cardinality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-09 22:44:41 +01:00
Nikolaj Bjorner 6f68355fbc Merge branch 'master' of https://github.com/Z3Prover/z3 2017-03-08 21:33:43 -08:00
Murphy Berzish 577cb19745 experimental rewrite of bitvector unit sequences to string constants 2017-03-06 13:58:03 -05:00
Nikolaj Bjorner b0a47ca897 disable pb sorting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-03-02 08:11:38 -08:00
Murphy Berzish ab71dea82d theory_str refactoring 2017-02-28 17:47:55 -05:00
Murphy Berzish 9ac0d098ac Merge remote-tracking branch 'upstream/master' into release-1.0 2017-02-28 12:45:04 -05:00
Murphy Berzish 725352234d refactoring theory_str 2017-02-27 13:22:56 -05:00
Nikolaj Bjorner e9b49644b2 Merge branch 'master' of https://github.com/z3prover/z3 into opt 2017-02-25 16:20:33 -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
Murphy Berzish 179b0f7630 clean up todos theory_str 2017-02-21 19:52:27 -05:00
Nikolaj Bjorner 122a12c980 fix build on downlevel compilers 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-21 09:12:10 -08:00
Nikolaj Bjorner 98c5a779b4 add xor parity solver feature 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-20 16:55:00 -08:00
Nikolaj Bjorner dc588b54f7 add sorting-based pb encoding in the style of minisat+ 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-19 11:31:34 -08:00
Murphy Berzish 235ea79043 Merge branch 'upstream-master' into release-1.0 
Conflicts:
	src/cmd_context/check_logic.cpp
	src/cmd_context/cmd_context.cpp
	src/cmd_context/cmd_context.h
	src/smt/params/smt_params_helper.pyg
	src/smt/smt_context.cpp
 2017-02-18 15:04:44 -05:00
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 b6b6035cfb tuning and fixing drat checker 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-07 16:50:39 -08:00
Nikolaj Bjorner e9e0293d1a local updates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-02 10:19:51 -08:00
Nikolaj Bjorner 7faa35ebdb fixing card 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-31 18:47:30 -08:00
Nikolaj Bjorner 8b7bafbd9f updates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-30 21:23:53 -08:00
Murphy Berzish a879b24011 add str.prefixof, str.suffixof in theory_str 2017-01-27 16:26:30 -05:00
Murphy Berzish 50e2273dbd substr bugfix 2017-01-20 17:39:32 -05:00
Nikolaj Bjorner 13099b1590 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-19 17:56:43 -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 cb6c6332b3 update conflict resolution for cardinality case 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-28 12:44:30 -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
Murphy Berzish be9cb8db82 regex tracing theory_str 2016-12-05 20:17:43 -05:00
Nuno Lopes e697d3e810 remove 2 outdated comments 2016-12-01 14:10:31 +00:00
Murphy Berzish 947d443726 improved regex concat rewrite 2016-11-29 19:46:37 -05:00
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
Murphy Berzish fff1fadf3b add str.from-int in theory_str rewriter 2016-11-09 15:54:22 -05:00
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
Murphy Berzish ef0f6f1de3 add str.to-int in theory_str WIP 2016-10-20 16:01:51 -04:00
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
Christoph M. Wintersteiger bc257211d6 Whitespace 2016-10-15 18:35:39 +02:00
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
Nikolaj Bjorner 476b06fa14 fix compiler warnings, gcc 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-28 16:42:07 -07:00
Mikolas Janota 147c0f8152 Removing an unused method from bv_rewriter. 2016-09-16 19:44:37 +01:00
Mikolas Janota ec47a1df50 Adding bv preprocessing techniques. 2016-09-16 19:44:37 +01:00
Nikolaj Bjorner 5a86815f34 fix regression in seq-replace rewriting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-11 05:43:16 -07:00
Nikolaj Bjorner 0b57829bdd fix heisenbug, unintialized variable, issue #720 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-10 11:04:29 -07:00
Nikolaj Bjorner cb140011bc add missing rewrite rule. Issue #731 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-10 09:42:36 -07:00
Nikolaj Bjorner e485d1889c update replace semantics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-09-08 13:59:13 -07:00
Murphy Berzish f9b4f21683 add rewrite for theory_str rewriter RegexPlus 
fixes regex-013.smt2
 2016-08-31 19:22:04 -04:00
Murphy Berzish 6263391c11 fix out-of-range integer comparison bug in string NFA 2016-08-17 20:58:57 -04:00
Murphy Berzish 0834229b39 theory_str model validation for substr 2016-08-17 15:33:02 -04:00
Murphy Berzish 48081864b0 add regex validation in str_rewriter 2016-08-16 18:07:31 -04:00
Christoph M. Wintersteiger e8141aaa84 debug fixes 2016-08-12 19:52:59 +01:00
Murphy Berzish 3dff240bb3 theory_str model validation for Length 2016-08-07 15:50:41 -04:00
Murphy Berzish cb566ad5ce fix model validation for theory_str 2016-08-07 15:43:08 -04:00
Nikolaj Bjorner 4958edeb42 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 19:40:49 -07:00
Loris D'Antoni 73bd4acfc5 added symbolic automata complement for sequences 2016-07-28 13:50:05 -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
Murphy Berzish 0f38203779 add RegexCharRange to theory_str 2016-07-19 16:39:43 -04:00
Murphy Berzish 9ffcd135d5 add RegexPlus to theory_str 2016-07-19 15:47:41 -04:00
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 d5ee7e24bc add simplification for equalities between itos and constant strings, Issue #589 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-08 11:50:39 -07:00
Nikolaj Bjorner 30cf0d19eb use of mk_bool_val 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-24 09:11:45 -07:00
Nikolaj Bjorner f72d9c25c6 merge with update to bv rewriter 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-24 09:08:01 -07:00
Christoph M. Wintersteiger 70301ad3c8 Added bv*mul_no*flow handling in bv_rewriter. 
Fixes #657.
 2016-06-24 16:25:11 +01:00
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
Christoph M. Wintersteiger 0a575936d0 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-06-23 19:31:08 +01:00
Christoph M. Wintersteiger 8bde7b8a4c Added facilities for dumping smt_params for debugging purposes 2016-06-23 19:31:00 +01:00
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
Murphy Berzish 4c34629806 starting regex support, rewriter 2016-06-21 21:13:16 -04:00
Murphy Berzish 5b3c868c90 theory_str Replace method 2016-06-15 21:14:54 -04:00
Murphy Berzish 7c8b882ae6 decl and rewriter support for LastIndexof in theory_str (WIP) 2016-06-15 18:04:33 -04:00
Murphy Berzish dc5a334d42 support for Indexof2 in theory_str 2016-06-15 17:37:17 -04:00
Murphy Berzish db2a5854e9 decl and rewriter for Indexof (WIP) 2016-06-14 20:10:06 -04:00
Murphy Berzish a3986d6d0e decl and rewriter support for Contains (WIP) 2016-06-14 18:36:43 -04:00
Murphy Berzish fd38b4c729 EndsWith decl and rewriter, WIP 2016-06-14 17:55:46 -04:00
Nikolaj Bjorner bfe26390f0 fix bug introduced when hiding unused variables in 96e157e, reported by Mikolas Janota 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-14 08:12:32 -07:00
Murphy Berzish 7d8e54c50f decl and rewriter for string StartsWith 2016-06-13 22:27:46 -04:00
Murphy Berzish be5cc02a45 working axiomatization for CharAt 2016-06-13 21:57:08 -04:00
Murphy Berzish 389845180c add CharAt to theory_str and basic rewrite rule for constant CharAt exprs 2016-06-13 16:34:24 -04:00
Murphy Berzish 7d09dbb8ec basic infrastructure for string rewriting 2016-06-12 20:46:52 -04:00
Christoph M. Wintersteiger 617e941015 fp2bv refactoring 2016-05-23 18:10:17 +01:00
Christoph M. Wintersteiger b6d90a64da fpa rewriter tidy up 2016-05-21 18:07:37 +01:00
Christoph M. Wintersteiger cae53c3ec2 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-05-20 19:55:01 +01:00
Christoph M. Wintersteiger 1cc8146aba Bugfixes for FP UFs and arrays. 2016-05-20 19:53:57 +01:00
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
Christoph M. Wintersteiger 71a03dbeb3 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-05-18 09:58:11 +01:00
Nikolaj Bjorner 96e157e201 fix warnings for unused variables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-17 13:54:22 -07:00
Christoph M. Wintersteiger df81ab72f5 Bug and performance fixes for FP UFs. 2016-05-17 16:35:45 +01:00
Nuno Lopes 0286cee450 simplify th_rewriter::mk_eq_value() 2016-05-05 11:00:21 +01:00
Christoph M. Wintersteiger 5971c20653 Bugfixes for bv_trailing. 2016-04-07 13:08:17 +01:00
Nuno Lopes e2b7ad246a bv_trailing: fix compiler warning + use of ast_manager 2016-04-06 15:34:31 +01:00
Mikolas Janota dbffc15b98 Improvements in caching of bv_trailing. 2016-04-06 11:04:15 +01:00
mikolas 9ba5bbfd33 Re-factoring and comments in bv_trailing. 2016-04-06 11:04:13 +01:00
Mikolas Janota 248feace34 fixing the behavior in bv_trailing 2016-04-06 11:04:11 +01:00
mikolas fced47386e More work on trailing 0 analysis. 2016-04-06 11:04:09 +01:00
mikolas ddb6ae4eab More work on trailing 0 analysis. 2016-04-06 11:04:07 +01:00
mikolas 78cb1e3c7b More work on trailing 0 analysis. 2016-04-06 11:04:05 +01:00
mikolas c7f1746321 Starting to work on trailing 0 analysis. 2016-04-06 11:04:03 +01:00
mikolas 05ce886afe Avoiding adding spurious +0 in poly_rewriter::cancel_monomials. 2016-04-05 17:26:48 +01:00
Nikolaj Bjorner 709a5d9524 fix bug: & -> && 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-24 16:09:12 -07:00
Nikolaj Bjorner 89fad8913f fix issue #535 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-24 08:16:54 -07:00
Nikolaj Bjorner 05a784fa9e fix issue #535 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-24 08:16:19 -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 701f32471e hardening model checker code against cancellations' 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-21 15:04:20 -07:00
Nikolaj Bjorner 20bbdfe31a moving remaining qsat functionality over 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-19 15:35:26 -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 b0f65335ab update copyright year 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-17 13:07:40 -07:00
Christoph M. Wintersteiger c8af48d7ef Bugfix for bvurem0 model evaluation (+1 rewriting step) 2016-03-17 13:09:52 +00:00
Christoph M. Wintersteiger 6b2d84b2be Fixed model evaluation/simplification for to_ieee_bv. 2016-03-16 17:46:52 +00:00
Christoph M. Wintersteiger 7ec70c1686 bug fixes for unspecified FP results 2016-03-16 16:57:20 +00:00
Christoph M. Wintersteiger db6b9faabc Bugfix for FPA rewriter. 2016-03-16 16:35:45 +00:00
Christoph M. Wintersteiger cdc8e1303a Bugfix for fp.to_*_unspecified. 
Fixes #507
 2016-03-16 16:16:29 +00:00
Christoph M. Wintersteiger 99d7a47f82 Bugfixes for unspecified results from fp.to_* (models are still incomplete). 
Relates to #507
 2016-03-15 21:45:54 +00:00
Christoph M. Wintersteiger 371573cbff More implementation of fp.to_ieee_bv for unspecified input/output 
Relates to #507
 2016-03-15 15:11:37 +00:00
Christoph M. Wintersteiger 176782d62b Bugfix for fp.to_ieee_bv for unspecified input/output. 2016-03-15 14:38:11 +00:00
Christoph M. Wintersteiger b5279d1da8 Bugfix for fp.to_ieee_bv. 
Fixes #507.
 2016-03-11 12:35:41 +00:00
Nuno Lopes 9c620376c2 simplify ast::are_equal(), since pointer equality is sufficient 2016-03-07 13:15:12 +00:00
Nikolaj Bjorner aa1ddd169a fix bug in offset for shift amount for free bindings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-05 15:25:14 -08:00
Nikolaj Bjorner 640308b546 make proto-model evaluation use model_evaluator instead of legacy evaluator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-05 10:27:19 -08:00
Nikolaj Bjorner 70f13ced33 make proto-model evaluation use model_evaluator instead of legacy evaluator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-05 10:14:15 -08:00
Zephyr Pellerin b13db1e82e Bugfix for arith_rewriter single operand division 2016-03-04 18:26:00 -08:00
Christoph M. Wintersteiger dbf9609b4c added assertion 2016-03-02 18:06:14 +00:00
Christoph M. Wintersteiger f128c76f23 whitespace 2016-03-02 18:05:14 +00:00
Nuno Lopes 006dc147a8 fix build with gcc 5 2016-02-29 14:34:48 +00:00
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 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 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
Nuno Lopes 73da4dda07 add a bv rewrite pattern: 
(bvsle (- x (srem x c1)) c2) -> (bvsle x (+ c1 c2 - 1))
 2016-02-18 17:45:55 +00:00
Nikolaj Bjorner e2dc7c6f64 add note that current re.complement is non-standard 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-12 17:12:43 +00:00
Nikolaj Bjorner 94453033b6 add partial support for complementation of regular expressions. Handles case of complementing character ranges 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-12 15:59:33 +00:00
Nikolaj Bjorner fc1f37efc9 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-06 16:14:07 +00:00
Nikolaj Bjorner 5b50d98b89 ensure that seq rewriter gets invoked during pre-processing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-06 16:13:31 +00:00
Christoph M. Wintersteiger ac19bfb032 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-05 13:53:41 +00:00
Christoph M. Wintersteiger bb5118acbb Bugfix for bv*div0 model construction. 2016-02-05 13:53:35 +00:00
Christoph M. Wintersteiger 21b85c27e1 whitespace 2016-02-05 13:47:14 +00:00
Nikolaj Bjorner cf970fd76a Fix #430: disable rewriting of concatentations with constants because it breaks equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-05 10:59:24 +00:00
Nikolaj Bjorner 2a65503235 fix #425 and report from Patrick Trentin of same bug in preprocessing soft constraints that are simplified to true/false 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-04 22:35:02 +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 fe6799699c Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-01 07:51:26 -08:00
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
Nuno Lopes cc6769c866 improve bit-blasting for the case (bvsrem var power-of-two) 
We will now transform bvsrem into an extract + zero extend
Gives ~40% speedup in selected benchmarks

Signed-off-by: Nuno Lopes <nlopes@microsoft.com>
 2016-02-01 13:46:55 +00:00
Nikolaj Bjorner 6529d43fb1 fix bugs exposed by unit tests from Pierre 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-26 09:50:14 -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 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 150c5c283d update re simplification 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-15 10:11:39 +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
Nikolaj Bjorner 3ff97357a3 fix back rewriting for concat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-01-14 11:22:11 +01:00