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21 commits

Author SHA1 Message Date
Nikolaj Bjorner
c870b77366 fixes to lookahead
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-06-08 17:25:06 -07:00
Nikolaj Bjorner
854bb2197f include recursive functions to models. Issue #898
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-03-08 21:41:24 -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
b1d673e3eb catch cancellation exceptions, return undef
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-10-27 16:34:26 -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
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
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
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
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
e29adbf304 fix issues #581: nested timeouts canceled each-other
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-04-30 11:18:34 -07:00
Nikolaj Bjorner
3d7eb12117 tracking use of assumptions in tactics
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-03-09 21:33:08 -08:00
Nikolaj Bjorner
9743c188da add exception handling for making solver-1 discontinuation transparent, thanks to Martin, #497
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-03-08 17:00:12 -08:00
Nikolaj Bjorner
b352d43e50 fix bugs exposed by Chris' sequence unit tests. Improve diagnostics for reason-unknown in combined solver
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-28 08:50:13 -08:00
Nikolaj Bjorner
85d44c5d66 fix axioms for extract, add extensionality checking for shared variables, convert exceptions to unknown status per #419
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-01-18 11:09:41 +05:30
Nikolaj Bjorner
96d1066c6a reworking cancellation
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2015-12-11 16:43:48 -08:00
Nikolaj Bjorner
baee4225a7 reworking cancellation
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2015-12-11 16:21:24 -08:00
Nikolaj Bjorner
b4cb51cdb3 working on Forking/Serializing a z3 Solver #209
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2015-11-06 17:29:24 -08:00
Christoph M. Wintersteiger
9b137d54d3 Bugfix and new examples for implicit assumptions in Z3_solver_assert_and_track. Thanks to Amir Ebrahimi for reporting this issue!
(See http://stackoverflow.com/questions/28558683/modeling-constraints-in-z3-and-unsat-core-cases)

Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
2015-02-18 16:25:27 +00:00
Nikolaj Bjorner
904ab4bf9e address race condition in cleanup methods
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2014-09-05 11:18:34 -07:00
Leonardo de Moura
050ec0b760 Fix memout detected in nightly regressions
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2012-12-15 13:26:11 -08:00
Leonardo de Moura
8198e62cbd solver factories, cleanup solver API, simplified strategic solver, added combined solver
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2012-12-11 17:47:27 -08:00