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Author SHA1 Message Date
nikolajbjorner
fbf8289394 probe also hard constraints before enabling SAT solver. Bug reported by Zvonimir Pavlinovic 
Signed-off-by: nikolajbjorner <nbjorner@microsoft.com>
 2015-02-24 14:02:23 -08:00
nikolajbjorner
fcb4962016 add patch suggested by Arie Gurfinkel 
Signed-off-by: nikolajbjorner <nbjorner@microsoft.com>
 2015-02-23 11:18:24 -08:00
Nikolaj Bjorner
c3232693f0 use PB solver instead of full arithmetic for bouding Pareto fronts so that difference logic theory isn't broken. Codeplex issue 175 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-22 09:46:21 -08:00
Nikolaj Bjorner
49483fdc28 take conflicts during restart into account. reported by Arie Gurfinkel 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-21 02:08:00 -08:00
Nikolaj Bjorner
911ffc370a separate MaxSMT functionality to enable using this independently (and incrementally) of overall context 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-16 09:11:28 +01:00
Nikolaj Bjorner
ded635cd06 Merge branch 'opt' of https://git01.codeplex.com/z3 into opt 2015-02-08 10:25:44 +01:00
Nikolaj Bjorner
8141dadc89 break on small cores 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-02-08 10:22:06 +01:00
Nuno Lopes
bbefc54bf5 add implementation of UNREACHABLE for MSVC in release mode. 
This reduces code size of Z3 by 0.1%  \o/

Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-02-05 09:53:26 +00:00
Nuno Lopes
0c4d82de58 datalog: optimize previous commit 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-02-02 11:49:58 +00:00
Nuno Lopes
5548ecc853 Datalog: fix bug with the following 2 scenarios: 
A(#x00) :- not B().
A() :- not B().

The first case can be further optimized, but committing this for correctness

Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-02-02 11:29:49 +00:00
Nuno Lopes
2444440edc DoC: implement get_size_estimate_bytes() 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-02-02 11:28:57 +00:00
Nuno Lopes
c0e0b39a1d Datalog: save memory in the compiler by using a union 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-02-02 10:34:19 +00:00
Nuno Lopes
6017dcace3 datalog: fix compilation for rules like a(X) :- not b(X). 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-01-29 20:41:22 +00:00
Nuno Lopes
4be2f608f1 Datalog: make the compiler reuse registers in simple cases. 
this also allows some code simplification

 dl_compiler.cpp |  133 +++++++++++++++++++-------------------------------------
 dl_compiler.h   |   16 +++---
 2 files changed, 54 insertions(+), 95 deletions(-)

Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-01-29 13:00:44 +00:00
Nuno Lopes
2e083ab9c2 DoC: specialize union for the case dst=empty and/or delta=empty 
this avoids O(n^2) insert and becomes O(n)

Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-01-29 08:50:12 +00:00
unknown
f020b7c7b8 Merge branch 'opt' of https://git01.codeplex.com/z3 into opt 2015-01-28 17:54:26 -08:00
Nuno Lopes
1701af9dc9 DoC: fix fast_empty() for tables without columns 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-01-28 11:38:26 +00:00
Nuno Lopes
9e447281ed Datalog: fix bug in compilation of negated queries that referenced vars not in the head. 
We will now first add unbounded columns for negation and for filtering
do filter_negation, and finally filter_interpret(_project)
 2015-01-27 14:21:34 +00:00
Nuno Lopes
83bae6c8aa DoC: fix bug filter_by_negation when negation table has 0 columns 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-01-27 13:42:14 +00:00
Nuno Lopes
6ab167f0c7 fix debug build 
Signed-off-by: Nuno Lopes <a-nlopes@microsoft.com>
 2015-01-25 18:31:04 +00:00
Nikolaj Bjorner
37fca65517 fuse join with projection avoiding double insert (but at cost of double projection) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-25 04:37:42 -08:00
Nikolaj Bjorner
761c7d9a40 adding annotation to logging to show number of columns and rows, adding dual propagation sketch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-25 04:01:18 -08:00
Nikolaj Bjorner
aae37c2317 Merge branch 'opt' of https://git01.codeplex.com/z3 into opt 2015-01-23 13:06:27 -08:00
Nikolaj Bjorner
552cbd840f adding soft-assertions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-23 13:06:11 -08:00
Andrey Rybalchenko
044f2a93e7 fix build with gcc 2015-01-23 19:53:14 +00:00
Nuno Lopes
036a56e360 DoC: remove another unused variable 2015-01-23 17:09:17 +00:00
Nuno Lopes
93db50ff64 DoC: further code simplifications 2015-01-23 17:04:09 +00:00
Nuno Lopes
03e62d6004 Merge branch 'opt' of https://git01.codeplex.com/z3 into opt 2015-01-23 16:55:18 +00:00
Nuno Lopes
92f6dd4de4 DoC: factorize join and join_project code so that join_project learns need tricks (i.e., prune empty vectors upfront) 2015-01-23 16:55:02 +00:00
Nuno Lopes
18b1372199 DoC: remove unused class fields in join operation 2015-01-23 14:56:25 +00:00
Nikolaj Bjorner
e50e02e656 Merge branch 'opt' of https://git01.codeplex.com/z3 into opt 2015-01-20 16:38:55 -08:00
Nikolaj Bjorner
e24db56650 integrating new integer primal loop 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-20 16:38:45 -08:00
Nikolaj Bjorner
f1d9228b94 fix bug in context push/pop for sat solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-20 16:30:46 -08:00
Nikolaj Bjorner
82f1e81ac2 fix build errors on gcc 
Signed-off-by: Nikolaj Bjorner <nbjorner@z3-mac.local>
 2015-01-19 00:50:08 +00:00
Nikolaj Bjorner
4bb5302def template args 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-18 15:54:18 -08:00
Nikolaj Bjorner
67827ede4c add 'throws' declaration 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-18 04:13:00 +05:30
Nikolaj Bjorner
d45c7ce082 prepare revised primal phase 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-18 04:11:40 +05:30
Nikolaj Bjorner
41ad1d50f9 fix java compilation bug 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-16 08:08:51 +05:30
Nikolaj Bjorner
05b7aa3ebb flush cache when proof mode changes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-15 14:32:18 +05:30
Nikolaj Bjorner
e28701a64c add assertions to simplifier 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-14 22:09:48 +05:30
Nikolaj Bjorner
bd879c1016 improve logging diagnostics and tracing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-09 15:43:16 -08:00
Nikolaj Bjorner
52c6f7c3b1 refine the safety check for leaving basis. As long as all base variables are unbounded in compatible directions as the non-basic variable we can detect unbounded variables. This partial check fixes integer divergence in a case exposed by Karpenov. Establishing or converting this to a check that always identifies unbounded integer variables is left for further analysis. 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-06 15:22:40 -08:00
Nikolaj Bjorner
ef57e4abe5 extract theory symbols from Boolean objectives 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-05 19:42:06 -08:00
Nikolaj Bjorner
061ac0f23e populate proofs in opt specific tactics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-05 16:44:33 -08:00
Nikolaj Bjorner
2f9e9e1a3c create proof object in elim01. Codeplex issue 158 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-03 11:04:08 -08:00
Nikolaj Bjorner
2cd4669e21 add DT translation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-03 01:47:57 -08:00
Nikolaj Bjorner
129e048a1b Adding field update feature 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-01-03 01:27:52 -08:00
Nikolaj Bjorner
a296023823 incorrect offset calculation in diff logic optimization. codeplex issue 156 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-12-29 16:15:19 -08:00
Nikolaj Bjorner
7d62ceeadc Merge branch 'opt' of https://git01.codeplex.com/z3 into opt 2014-12-29 12:57:17 -08:00
Nikolaj Bjorner
c54a19b084 generate proof justifications in theory_pb: codeplex issue 157 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-12-29 12:57:02 -08:00