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752 commits

Author SHA1 Message Date
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
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
Nikolaj Bjorner
5069da62a3 safe sat clause_offset in debug mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-19 08:45:06 -07:00
Nikolaj Bjorner
e132c5eae8 safe sat clause_offset in debug mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-19 08:42:40 -07:00
Nikolaj Bjorner
665fccf07a addressing max-segment issue for AMD64 + Debug 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-08-18 18:01:29 -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
Nikolaj Bjorner
3581f6de42 remove stale SLS option 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-21 18:18:42 -07:00
Nikolaj Bjorner
8f862f8fed fix core extraction for QF_BV theory/inc_sat_solver based on regressions pointed out by Matthias Heizmann and Tjark Weber 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-09 12:35:11 -07:00
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
Nikolaj Bjorner
c7ff05cc78 enable core minimization with qsat in case it turns out to be useful 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-12 15:58:12 -07:00
Nikolaj Bjorner
3a6e6df4f5 fix unused-but-set-variable warnings reported in #579 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-18 11:02:10 -07:00
Nikolaj Bjorner
09b8c0e7fa removing warnings for unused variables, #579 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-17 15:59:06 -07:00