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5594 commits 23 branches 48 tags 157 MiB
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887 commits

Author SHA1 Message Date
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 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
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
Nikolaj Bjorner 56c78753f0 updating default solver selection. Add dt2bv transformation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-24 18:16:32 -07:00
Nikolaj Bjorner a59ed0fc2f Merge branch 'master' of https://github.com/Z3Prover/z3 2016-07-20 12:18:16 -07:00
Nikolaj Bjorner 60711bb0cd deal with model construction, issue #684. fix model construction for ite #678. WIth this version, issue #686 does not repro 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-20 12:18:07 -07:00
Nikolaj Bjorner 5f39c4371c fix proof generation for unit resolution. Issue #691 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-20 11:54:39 -07:00
Nikolaj Bjorner 6559fd817d Fix bit-blasting discrepancy. #690 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-20 10:53:53 -07:00
Nikolaj Bjorner f30fb7639e Merge branch 'master' of https://github.com/Z3Prover/z3 2016-07-13 20:32:24 -07:00
Nikolaj Bjorner 3989d238c0 fix bugs exposed in #677. to_int(x) has the semantics that to_int(x) <= x, and to_int(x) is the largest integer satisfying this inequality. The encoding in purify_arith had it the other way x <= to_int(x) contrary to how to_int(x) is handled elsewhere. Another bug in theory_arith for mixed-integer linear case was also exposed. Fractional bounds on expressions of the form to_int(x), and more generally on integer rows were not rounded prior to internalization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-13 20:32:18 -07:00
Christoph M. Wintersteiger 3bea00efe3 added smt_params trace 2016-07-13 15:35:29 +01:00
Fabian Wolff 6eaab00e83 Fix spelling errors 2016-07-09 11:46:43 +02:00
Nikolaj Bjorner bdbf1c9bf4 add support for default semantics for stoi (non-integer strings map to -1). Issue #670 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-08 10:45:19 -07:00
Nikolaj Bjorner 4c786c5f70 add n-ary disjunction and conjunction 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-07-01 08:15:50 -07:00
Nikolaj Bjorner c2f9d35d59 throw exceptions when internalizing expressions with free variables, issue #663 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-29 16:53:28 -07:00
Nikolaj Bjorner 8aee7129f6 shortcircuit stats functions on ground terms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-28 21:48:49 -07:00
Nikolaj Bjorner 98a34ca51f Merge branch 'master' of https://github.com/Z3Prover/z3 2016-06-23 21:39:34 -07:00
Nikolaj Bjorner c72ed3e6b4 update core minimization code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-23 21:39:28 -07:00
Christoph M. Wintersteiger 0a575936d0 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-06-23 19:31:08 +01:00
Christoph M. Wintersteiger 8bde7b8a4c Added facilities for dumping smt_params for debugging purposes 2016-06-23 19:31:00 +01:00
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 fa6f9b4a37 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-06-20 16:39:08 -07:00
Nikolaj Bjorner 9c099d6b1b fix mb maximization logic, so far not accessible 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-20 16:39:03 -07:00
Nikolaj Bjorner 9253ca9d86 make use of warning_msg safe for formatting. Thanks to Scott McPeak for reporting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-14 08:10:10 -07:00
Nikolaj Bjorner b11f9050e3 fix bugs exposed from bad indentation warnings, #650 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-13 18:20:25 -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 19f98547f7 fix memory leak Issue #643 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-09 21:59:10 -07:00
Christoph M. Wintersteiger bd187e0989 Bugfix for fp.min/fp.max in fpa2bv converter; hide BV UFs from FP models. 
Fixes #642
 2016-06-09 17:51:31 +01:00
Christoph M. Wintersteiger bfeab9cc15 Added facilities for hiding UFs in smt::model_generator 2016-06-09 17:49:45 +01:00
Nikolaj Bjorner 5253f3a12b internalize unsupported operations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-08 13:56:01 -07:00
Nikolaj Bjorner 21158ea03f Merge branch 'master' of https://github.com/Z3Prover/z3 2016-06-02 20:58:20 -07:00
Nikolaj Bjorner eab5a84f62 fix issues with int.to.str and seq.len encodings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-06-02 20:57:52 -07:00
Christoph M. Wintersteiger 47e75827ee theory_fpa refactoring 2016-05-31 16:22:48 +01:00
Christoph M. Wintersteiger 302c491535 theory_fpa refactoring 2016-05-31 16:22:24 +01:00
Christoph M. Wintersteiger 03f6b465b9 comment typos 2016-05-31 16:14:50 +01:00
Nikolaj Bjorner 39acd3594a test variants for seq_solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-30 18:15:10 -07:00
Nikolaj Bjorner f03032bd09 updated seq solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-29 14:01:05 -07:00
Nikolaj Bjorner cddf8091b5 strengthen support for int.to.str and length reasoning. Issue #589 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-28 12:36:50 -07:00
Nikolaj Bjorner c3f498a640 strengthen support for int.to.str and length reasoning. Issue #589 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-28 12:26:47 -07:00
Nikolaj Bjorner 3aea63edb1 check for cancellation before internalizing and during to avoid errors. Issue #625 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-27 17:27:37 -07:00
Christoph M. Wintersteiger 4b00ea69db refcount fix for theory_fpa 2016-05-26 14:01:06 +01:00
Christoph M. Wintersteiger 04a68bbb0a Eliminated a number of potential memory leaks in fpa2bv code. 
Relates to #615
 2016-05-25 18:50:57 +01:00
Christoph M. Wintersteiger 9717161bb8 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-05-24 10:58:23 +01:00
Nikolaj Bjorner c20b391cf7 reduce warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-05-23 14:32:51 -07:00
Christoph M. Wintersteiger 617e941015 fp2bv refactoring 2016-05-23 18:10:17 +01:00