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6142 commits 23 branches 48 tags 157 MiB
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213 commits

Author SHA1 Message Date
Nikolaj Bjorner bd0bd6052a Merge branch 'master' of https://github.com/Z3Prover/z3 2017-02-02 10:19:21 -08:00
Nikolaj Bjorner 9ca52a3361 fix bug in lexicographic handling in maxres: previous assumptions were not committed in corner cases 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-02 10:19:11 -08:00
Nikolaj Bjorner 9cfd412cd0 enable pb theory always as pb terms can be introduced during transformations. Issue #884 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-01 15:28:29 -08:00
Nikolaj Bjorner 256a0e2d82 move exchange par 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-02-01 12:12:26 -08:00
Nikolaj Bjorner f015e3e4cc fix bug in propagation of parameters to combined solvers 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-31 17:17:58 -08:00
Nikolaj Bjorner bdfa84c6fe fix issues with running parallel solver: random strategy should not be a default on all solvers. Also reuse base solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-31 13:22:03 -08:00
Nikolaj Bjorner 1d1949e395 ensure that parallel threads are only invoked when thread count > 1 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-30 18:30:06 -08:00
Nikolaj Bjorner 76bc4f0b38 refine parsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-30 11:30:42 -08:00
Nikolaj Bjorner 37ee4c95c3 adding parallel threads 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-30 02:09:08 -08:00
Nikolaj Bjorner 962979b09c rework sat.mus to use restart count for bounded minimization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-26 13:28:40 -08:00
Nikolaj Bjorner 4782e19086 fix bug in sat-simplifier decreasing heap values of variables that are not in the heap 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-25 16:21:51 -08:00
Nikolaj Bjorner 873d975c77 fix bug in consequence extraction: the order of bcp is not fixed between restarts, so the order of unit literals may not be preserved. This is relatively rare, so we optimize for the case where we assume bcp preserves order (and maybe miss some consequences) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-17 13:41:15 -08:00
Nikolaj Bjorner 7df803c131 Fix unsound handling of upper bounds in wmax, thanks to Patrick Trentin for report and careful repros #847 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-15 11:52:48 -08:00
Nikolaj Bjorner bc6b3007de remove unused features related to weighted check-sat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-13 20:53:22 -08:00
Nikolaj Bjorner c69a86e647 fix bug in antecedent collection for consequence finding: once an antecedent is set, it should not be cleared 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-06 19:34:50 -05:00
Christoph M. Wintersteiger cb75a55095 Fixed initialization order warning. 2017-01-03 13:41:08 +00:00
Nikolaj Bjorner 74d3de01b3 enable incremental consequence finding with restart timeout 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-01-02 10:07:02 -08:00
Nikolaj Bjorner a4d5c4a00a make get_consequence call skip check-sat if a model is already there 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-30 18:05:19 -08:00
Nikolaj Bjorner aaf6e67ec8 add restart.max parameter to control cancellation based on restart count 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-25 17:43:47 -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 189d449cff fix generation of wcnf 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-12-18 14:49:45 -08:00
Nikolaj Bjorner d9227b95ea blast distinct in incremental BV solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-29 15:45:23 -08:00
Christoph M. Wintersteiger 1799310155 Fixed iterator invalidation bug in SAT probing. Relates to #798. 2016-11-26 14:07:05 +00:00
Nikolaj Bjorner ea601dd403 fix and coallesce clique functionality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-19 03:55:48 -08:00
Christoph M. Wintersteiger bfaa9ddf63 Fixed potential SAT solver cleanup problem. Renamed functions for consistency. Relates to #570. 2016-11-14 17:42:21 +00:00
Christoph M. Wintersteiger 520e868add Fixed interruption cleanup bug in sat_solver. Relates to #570. 2016-11-14 17:42:20 +00:00
Christoph M. Wintersteiger d099e26342 Fixed compiler warning 2016-11-14 17:42:20 +00:00
Christoph M. Wintersteiger 890142ef96 Fix cleanup/initialization of sat::simplifier. Relates to #570. 2016-11-14 17:42:20 +00:00
Nikolaj Bjorner e0613b6737 fix crash reported in #784 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-12 08:58:03 -08:00
Nikolaj Bjorner f61600d1d8 fixing unsat core extraction for tactics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-02 14:14:55 +00:00
Nikolaj Bjorner 305e080239 enable unsat core extraction in nlsat_tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-01 17:57:28 +01:00
Nikolaj Bjorner 84172302a2 fix bug in mutex extraction, reported by Patrick Trentin 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-01 00:16:16 +01:00
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 3714e520be fix performance bottlnecks: gc of literals walk through potentially huge watch-lists, avoid user-push/pop around calls to solver2tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-28 08:27:11 -07:00
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 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 4bd83724dd remove conflict on false disequality, introduced regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-26 19:15:05 -07:00
Nikolaj Bjorner 461e88e34c additional robustness check for incremental sat solver core when it recieves interpreted constants, added PB equality to interface and special handling of equalities to adddress performance gap documented in #755 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-25 20:32:13 -07:00
Nikolaj Bjorner e4d2c5867a remove dead (and incorrect) code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-24 15:52:47 -07:00
Christoph M. Wintersteiger f97ffce479 Silenced GCC warning about empty loop body. 2016-10-19 12:31:35 +01:00
Christoph M. Wintersteiger f9bd8f674d whitespace 2016-10-19 12:31:06 +01:00
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 aec59e4ff7 add consequence finding to inc-sat-solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-16 15:43:28 -04:00
Nikolaj Bjorner 8d2b70a5e2 better encodings for at-most-1, #755 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-10 23:46:03 -07:00
Nikolaj Bjorner 619cce0a52 add mutex preprocessing to maxsat, add parsing functions to C++ API 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-10-07 12:42:08 -07:00
Christoph M. Wintersteiger 27ea7d8e9d style/formatting 2016-09-16 19:34:48 +01:00
Christoph M. Wintersteiger b70cc47a9d x64 clause allocator fix for del_clause 2016-09-16 19:25:41 +01:00
Christoph M. Wintersteiger 5b1cb49973 x64 clause allocator bug fix 2016-09-16 19:25:41 +01:00
Nikolaj Bjorner 424a8c69bd Merge branch 'master' of https://github.com/Z3Prover/z3 2016-09-02 03:05:23 -07:00