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7077 commits 49 branches 53 tags 182 MiB
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Author SHA1 Message Date
Christoph M. Wintersteiger
03aa6914a3 Fixed sub-logic detection for the ALL logic. 2016-08-09 13:20:45 +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
Murphy Berzish
395ec4543c avoid crash in theory_str, this leaks memory 2016-08-06 22:19:10 -04:00
Murphy Berzish
43b0cd5010 clean up unused variables in theory_str.cpp 2016-08-06 15:38:58 -04:00
Murphy Berzish
2c91f388df add defensive double-non-concat check in theory_str::simplify_concat_equality() 2016-08-06 15:35:47 -04:00
Murphy Berzish
91c336d7ee fix erroneous vector double-insert in theory_str::group_terms_by_eqc() 2016-08-06 15:32:37 -04:00
Nikolaj Bjorner
aee6a7fe4c Merge pull request #708 from dstaple/master 
Removed complete() from handling of y.is_zero() in process_power
 2016-08-06 09:06:34 -07:00
Nikolaj Bjorner
14e8126f16 wrapping interruptable with solver consequence call 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-05 11:32:12 -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
Murphy Berzish
0c4e725902 finish theory_str::mk_concat, no caching of generated terms yet 2016-08-04 16:40:05 -04:00
Nikolaj Bjorner
f3ef59b095 fix scanner bug at EOF 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-04 13:17:37 -07:00
Nikolaj Bjorner
6582330cc4 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-03 14:25:57 -07:00
Nikolaj Bjorner
bbfe02b25a modulating data-type solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-03 11:16:29 -07:00
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
Murphy Berzish
bc91d182bf mk_concat fixes WIP 2016-08-03 13:39:14 -04:00
Murphy Berzish
3c2fe497de modify theory_str::get_value() to check EQC for a numeral 
Instead of asking the arithmetic theory for the current assignment,
we return the (unique) numeral in the equivalence class of the term
whose length we want to know.

This is because the arithmetic theory may return a default / internal
value that doesn't correspond to anything actually asserted by the core solver.
 2016-08-02 16:44:54 -04:00
Murphy Berzish
45c4954959 add debugging to theory_str::get_len_value in preparation for fixes 2016-08-02 14:52:44 -04:00
Murphy Berzish
a51ad07e3f crash avoidance in propagation of basic string axioms and gen_len_test_options 2016-08-01 20:52:49 -04:00
Murphy Berzish
97f07a8a7c fix debugging statements in theory_str::gen_len_test_options 
this fixes charAt-007.smt2 and prevents two unique crashes
 2016-08-01 18:14:56 -04:00
Murphy Berzish
ee1af96f1b add opt_NoQuickReturn_IntegerTheory check in theory_str::new_eq_check() 
This allows us to assert an "inconsistent length" axiom from the integer theory
while continuing in new_eq_handler(). Currently active when
opt_NoQuickReturn_IntegerTheory is 'true' but this may be necessary
here and in other places, in general, to fix integer theory integration.
 2016-08-01 17:05:02 -04:00
Murphy Berzish
6e348720b1 add integer theory integration to theory_str::solve_concat_eq_str case 4 2016-07-31 18:12:57 -04:00
Murphy Berzish
778c0a5563 improve theory_str::group_terms_by_eqc now that we have simplify_concat 2016-07-31 16:55:17 -04:00
Murphy Berzish
9ceb2df28f add integer integration to theory_str::simplify_parent 2016-07-31 16:51:35 -04:00
Murphy Berzish
41497f44c1 prevent checking scope of XOR variables in theory_str::process_concat_eq 2016-07-31 16:30:52 -04:00
Murphy Berzish
f5b82740c3 debugging length testers in theory_str::gen_len_val_options_for_free_var 2016-07-31 16:26:56 -04:00
Murphy Berzish
8958eea27c crash avoidance in theory_str cut_var_map writes 2016-07-31 11:22:04 -04:00
Nikolaj Bjorner
cb2d8d2107 add detection of non-fixed variables to consequence finding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-30 19:12:41 -07:00
Murphy Berzish
7f3a260eda more aggressive simplifications in theory_str::handle equality, WIP, not tested yet 2016-07-30 16:58:59 -04:00
Nikolaj Bjorner
7562efbe84 add consequence command 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-30 12:59:29 -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
d32019f4c9 fix consequence tracking for negated assumptions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-30 10:49:06 -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
2263be1b4d adding consequence examples 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-29 17:24:14 -07:00
Nikolaj Bjorner
82d0310d94 remove repeated default argument, remove tabs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 21:13:12 -07:00
Nikolaj Bjorner
5c99405db3 finish consequence fast path code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 20:15:47 -07:00
Nikolaj Bjorner
4958edeb42 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 19:40:49 -07:00
Nikolaj Bjorner
fa48703445 fix build for non C++11 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 17:04:47 -07:00
Nikolaj Bjorner
0055254f4c fix build for non C++11 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-28 17:04:06 -07:00
Christoph M. Wintersteiger
2e362aa6c0 build fix 2016-07-29 01:02:48 +01:00
Nikolaj Bjorner
46c911a92f Merge pull request #700 from lorisdanto/master 
added symbolic automata complement for sequences
 2016-07-28 17:00:23 -07:00
Christoph M. Wintersteiger
6e85c5e987 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-07-29 00:55:22 +01:00
Christoph M. Wintersteiger
7fd931d480 build fix 2016-07-29 00:55:05 +01:00
Nikolaj Bjorner
55cffc5247 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-07-28 16:49:49 -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
Murphy Berzish
6f67e9cdda fix theory_str::check_length_concat_concat to actually assert the conflict axiom 2016-07-28 17:18:56 -04:00
Murphy Berzish
244b611f1c fix infinite loop bug in theory_str::new_eq_check 2016-07-28 17:10:41 -04:00
Loris D'Antoni
73bd4acfc5 added symbolic automata complement for sequences 2016-07-28 13:50:05 -07:00
Murphy Berzish
999420485b add theory_str::check_length_eq_var_concat and helper methods 2016-07-28 16:49:39 -04:00
Murphy Berzish
76ceac6664 add theory_str::check_length_const_string 2016-07-28 16:31:40 -04:00