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13959 commits 49 branches 53 tags 182 MiB
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3309 commits

Author SHA1 Message Date
Nikolaj Bjorner
439e8e6b04 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-08-20 03:53:55 -07:00
Nikolaj Bjorner
f2b5c11d1c add option for prettier proof printing, Issue #706 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-20 03:52:45 -07:00
Murphy Berzish
481e97a274 propagate early in theory_str to set up contains/regex maps 
this fixes an unsat-as-sat error in a regex test and flips around some timeouts
so more work will be required to track this down
 2016-08-19 22:53:36 -04:00
Murphy Berzish
8598a48e3b fix weird Contains rewriter behaviour in theory_str 2016-08-18 19:14:50 -04:00
Murphy Berzish
3c8b833eeb fix expression dereference error in theory_str::gen_assign_unroll_Str2Reg 2016-08-18 17:03:32 -04:00
Murphy Berzish
54d7e4bbb5 remove the option to bypass check_regex_in in theory_str 2016-08-17 21:12:19 -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
71ad4d3a4a add regex_in_bool_map to theory_str 2016-08-17 16:21:19 -04:00
Murphy Berzish
685edbb268 pull out incorrectly-used data structures in theory_str for contains check, this will need to be revisited 2016-08-15 18:58:36 -04:00
Murphy Berzish
d28ef1d471 add theory_str::check_contain_by_eq_nodes 2016-08-15 17:38:24 -04:00
Murphy Berzish
f48377e780 temporarily disable a third Contains check for testing purposes 2016-08-14 16:14:48 -04:00
Murphy Berzish
ee6f1eef69 add theory_str::check_contain_by_substr 2016-08-14 15:14:48 -04:00
Murphy Berzish
1f594b190a add theory_str::check_contain_by_eqc_val 2016-08-14 14:55:29 -04:00
Murphy Berzish
6612971049 start adding Contains checks to theory_str 2016-08-14 14:15:29 -04:00
Murphy Berzish
f7ba3ff084 crash avoidance in theory_str search start, fixes length-001.smt2 regression 2016-08-09 20:11:25 -04:00
Christoph M. Wintersteiger
f54a7db108 Added debug traces. 2016-08-09 16:36:49 +01:00
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
Murphy Berzish
0c4e725902 finish theory_str::mk_concat, no caching of generated terms yet 2016-08-04 16:40:05 -04:00
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
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
2263be1b4d adding consequence examples 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-29 17:24:14 -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
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
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
Murphy Berzish
95f1cfa5a6 add theory_str::check_length_consistency, WIP 2016-07-27 16:18:05 -04:00
Murphy Berzish
a31a948a5b add theory_str::can_concat_eq_concat 2016-07-27 15:21:33 -04:00