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5570 commits 49 branches 53 tags 182 MiB
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Author SHA1 Message Date
Nikolaj Bjorner
3b6eef05c9 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-29 20:23:29 -08:00
Nikolaj Bjorner
6cf76f2113 remove references to _DEBUG use Z3DEBUG instead 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-29 20:23:20 -08:00
Nikolaj Bjorner
6f45970b6e Merge pull request #466 from 4tXJ7f/patch-1 
Fix documentation for floating-point comparisons
 2016-02-29 20:22:57 -08:00
Andres Nötzli
c9269c1983 Fix documentation for floating-point comparisons 2016-02-29 19:12:14 -08:00
Nikolaj Bjorner
7ac5e67538 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-29 17:04:32 -08:00
Nikolaj Bjorner
c6c84dd59a update documentation help to be inline with fpLT. Issue #465 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-29 17:04:26 -08:00
Nuno Lopes
43202572ee bv_bounds: switch from rational to uint64 
this limits the analysis to 64-bit BVs, but gives a speedup of up to one order of magnitude
 2016-02-29 17:23:54 +00:00
Nikolaj Bjorner
9efc7f4aea turn on model completion in validation code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-29 09:06:20 -08:00
Nikolaj Bjorner
d89c39cbe2 apply t() 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-29 08:36:25 -08:00
Nuno Lopes
006dc147a8 fix build with gcc 5 2016-02-29 14:34:48 +00:00
Nikolaj Bjorner
7656adc483 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-28 17:05:52 -08:00
Nikolaj Bjorner
df2d7e7628 add intersection using symbolic automata facility 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-28 17:05:12 -08:00
Nuno Lopes
c1eb1cc3f2 bv_bounds: improve perf of push/pop 2016-02-28 20:07:39 +00:00
Nuno Lopes
e7a360ca08 ctx_simplify: remove virtual push() method 2016-02-28 17:57:40 +00:00
Nuno Lopes
51687b2be7 bv_bounds: ensure (bvule x maxuint) is simplified to true 2016-02-28 10:56:48 +00:00
Nikolaj Bjorner
4cf72e23e6 fix python 3 compat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-27 09:58:45 -08:00
Nikolaj Bjorner
e659845bc0 tune handling of contains, avoid redundant equalities, merge use of indexof.left/right with contains.left/right adding only least-ness constraints in the context of index 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-27 09:56:11 -08:00
Nikolaj Bjorner
1c630ccc9a Merge branch 'master' of https://github.com/Z3Prover/z3 into HEAD 2016-02-26 18:15:57 -08:00
Nikolaj Bjorner
ce8862d415 fix bug in conflict clause generation in seq-branch-variable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-26 18:15:45 -08:00
Nuno Lopes
97d6098d00 bv_bounds: make may_simplify() more aggressive for the common case of a single comparison 
fix expr_has_bounds to handle cases like (bvadd (ite c t e) ...)
 2016-02-25 19:41:01 +00:00
Nuno Lopes
6563e458f0 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-25 16:53:45 +00:00
Nuno Lopes
c693c990df bv_bounds: speedup up to 10x in larger formulas 
introduce a may_simplify() function to short-circuit evaluation of expression trees that are guaranteed to not be simplifiable
 2016-02-25 16:53:35 +00:00
Nuno Lopes
d642d5fe4c API: add smt.logic parameter to enable setting the logic through the API 
currently only Z3_solver_set_params() is supported
logic has to be set before solver first usage or before solver reset
 2016-02-25 09:47:51 +00:00
Nuno Lopes
c1aa33339d bv_bounds: early exit in is_bound in case the expr is not boolean 
~2% speedup
 2016-02-25 09:32:10 +00:00
Nikolaj Bjorner
4c408165ab Merge branch 'master' of https://github.com/Z3Prover/z3 into HEAD 2016-02-24 08:55:28 -08:00
Nikolaj Bjorner
5679fb5d6b experimenting with alternative prefix encodings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-24 08:55:22 -08:00
Nikolaj Bjorner
4e7a867cd9 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-23 18:42:01 -08:00
Nikolaj Bjorner
d5383e2387 fix bug in definition of rewrite rule for replace, tighten constraints for tightest-prefix 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-23 18:41:56 -08:00
Nikolaj Bjorner
8c68aed69e Merge branch 'master' of https://github.com/Z3Prover/z3 into HEAD 2016-02-23 08:11:09 -08:00
Nuno Lopes
64888b6b19 ctx_simplify: fix bug in simplification of or exprs 
this triggered when the or covers the whole space -> true
 2016-02-23 10:37:01 +00:00
Nuno Lopes
12458b1a84 remove dead code in qfufbv 2016-02-22 10:22:56 +00:00
Nikolaj Bjorner
63c138c08e add option to enable equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-21 11:16:13 -08:00
Nikolaj Bjorner
8c538fd3f0 setting partial equivalence priority lower so that it doesn't intefere with inlining (partial fix to the fact that inlining will remove such implicit relations). Using short-circuit negation in qe to avoid redundant double negations in intermediary results 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-21 10:31:13 -08:00
Nikolaj Bjorner
d4f41c0420 add goal context for simplifier, disable equality creation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-20 10:13:24 -08:00
Nikolaj Bjorner
c7abc11ce0 Merge branch 'master' of https://github.com/Z3Prover/z3 into HEAD 2016-02-19 08:23:32 -08:00
Nikolaj Bjorner
bff10527d1 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-19 08:23:27 -08:00
Nuno Lopes
7d3af70a63 ctx-simplify: fix mem leak of simplifier 2016-02-19 11:08:01 +00:00
Nuno Lopes
c618838ed9 bv_bounds: fix crash in push() when realloc happened 2016-02-19 11:06:22 +00:00
Nuno Lopes
121b3b60f3 bv_bounds/ctx_simplify: improve handling of (ite x a b) where (not x) is proved to be false 2016-02-19 09:42:42 +00:00
Nikolaj Bjorner
73f93dbadb Merge branch 'master' of https://github.com/Z3Prover/z3 2016-02-18 18:10:30 -08:00
Nikolaj Bjorner
a073b37ce3 fix bugs in seq solver: add relevancy and axiom 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-18 18:10:16 -08:00
Nikolaj Bjorner
5962ca2a62 seq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-18 12:08:35 -08:00
Nuno Lopes
73da4dda07 add a bv rewrite pattern: 
(bvsle (- x (srem x c1)) c2) -> (bvsle x (+ c1 c2 - 1))
 2016-02-18 17:45:55 +00:00
Nuno Lopes
d32b4c71d1 [bv_bounds] introduce a tight bit in intervals to denote they are tight (over and under approx) 
use this to ensure certain transformations remain sound
 2016-02-18 15:53:11 +00:00
Nikolaj Bjorner
67958efed2 add fixed length heuristic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-17 21:20:39 -08:00
Nuno Lopes
8718c1c99f bv_bounds: simplify negated expressions as well 2016-02-17 19:14:02 +00:00
Nikolaj Bjorner
16ced7cda5 Merge pull request #453 from delcypher/fix_clause_allocator_bound_check 
Fix incorrect (off by one) bound check in clause_allocator
 2016-02-17 08:50:51 -08:00
Nuno Lopes
a4cfcd4550 bv_bounds: fix bug in interval intersection for non-wrapping disjoint values 2016-02-17 16:32:43 +00:00
Nuno Lopes
ac20d8bc11 bv_bounds: fix intersection of wrapped intervals 
e.g., [117, 115] /\ [115, 113] -> [115, 113]
 2016-02-17 15:41:12 +00:00
Nuno Lopes
98a92b9255 bv_bounds tactic: change representation to intervals 
Code by myself and Nikolaj Bjorner
 2016-02-17 10:02:40 +00:00