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Author SHA1 Message Date
Bernhard Gleiss
c3a66217e1 improved options for IUC computation 2018-06-14 16:08:47 -07:00
Bernhard Gleiss
370667722d New option fixedpoint.spacer.print_farkas_stats 
Prints the number of Farkas lemmas in each proof
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
880fc77655 Further rewrite equalities 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
6818eb3340 Improve factor equalities 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
5a37518e58 Improve statistics from spacer 2018-06-14 16:08:47 -07:00
Bernhard Gleiss
00a99f01b4 improved options for IUC computation 2018-06-14 16:08:47 -07:00
Bernhard Gleiss
fba995294d refactored options regarding farkas lemma handling 2018-06-14 16:08:47 -07:00
Bernhard Gleiss
56fcb8e6fd added option fixedpoint.spacer.print_farkas_stats to print number of Farkas lemmas in each proof 2018-06-14 16:08:47 -07:00
Bernhard Gleiss
4148ee128c fixed bug, which added too many edges between super-source and source in the case where the source was used by multiple inferences 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
9b050e8d30 Fix benign warning 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
e7815c703c Fix a typo 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
321cad70d6 improve comments for scoped_weakness 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
890bc0f7c9 fix scoped_weakness 
forgot to save current state of params before resetting them
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
68518b0e32 propagate weakness from pob down to all related checks 
If a pob was discharged with a weak solver, propagate the level of
weakness to inductive generalization and to lemma propagation.
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
b8b3703511 improved implementation of is_qblocked() 
Disabled by default. Has no effect if ran with the default set of
options where qlemmas=true  and instantiate=true
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
371ba4fbc0 added parameters that seem to work well with quantifiers and arith 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
27d8fa4a34 hard-code quantifier weight to 15 
With default settings, the eager threshold is 10 and lazy is 20.  15
puts us in the middle ensuring that lemmas are instantiated when UNSAT
and otherwise delayed.
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
135a4a765f Adding grounding of the current lemma 
In addition to adding the necessary instance of a quantified lemma,
add its grounding over the global set of skolems.
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
e8befc072c cleaned up lemma instantiation code 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
6917aa3eb9 debug print 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
1d478bd8d3 using sk_lt_proc order instead of ast_lt_proc when creating a lemma 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
6cf68bee80 app ordering that puts special skolem constants first 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
9f0eb367b1 ground lemmas during propagation when qlemmas are disabled 
When asserting quantified lemmas are disabled, ground a lemma
explicitly during propagate to make sure that it is ground using our
local set of skolem constants.
 2018-06-14 16:08:47 -07:00
Arie Gurfinkel
5da0753269 (spacer) add instances even when a q-lemma already exists 
It is possible that a new instance of a quantified lemma is discovered
even though a quantified lemma it already known. In this case, the
instance should be added to a corresponding context, even though the
lemma is not new.
 2018-06-14 16:08:47 -07:00
Nikolaj Bjorner
e94b97376c fix memory leak in relation_manager, use for loops 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-14 10:16:03 -07:00
Nikolaj Bjorner
187f1a8cbd Merge branch 'master' of https://github.com/z3prover/z3 2018-06-08 10:30:28 -07:00
Nikolaj Bjorner
63a1b2e714 fix #1665 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-08 10:30:20 -07:00
Nikolaj Bjorner
5ffd06c608
Merge pull request #1673 from NikolajBjorner/master 
gcd/#1667
 2018-06-08 09:29:27 -07:00
Nikolaj Bjorner
0520d1a1f6 remove trial with mfsr flag 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-08 07:38:30 -07:00
Nikolaj Bjorner
24adae4166 Merge branch 'master' of https://github.com/z3prover/z3 2018-06-07 22:03:16 -07:00
Nikolaj Bjorner
4547f2c001 enable non-expression bodies of quantifiers to fix #1667 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-07 22:03:03 -07:00
Nikolaj Bjorner
29c2672407 fix bugs exposed by Nuno's PB example 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-07 21:43:37 -07:00
Nuno Lopes
9e916edcb0 z3.py: add overflow checks to PB API 2018-06-07 15:40:04 +01:00
Nikolaj Bjorner
88ead235f0 gcc mode 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 19:30:56 -07:00
Nikolaj Bjorner
bb53060313 int64_t 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 19:26:40 -07:00
Nikolaj Bjorner
8565de2c5b deal with shift exponent error 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 19:17:37 -07:00
Nikolaj Bjorner
ad67424987 deal with shift exponent error 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 18:23:04 -07:00
Nikolaj Bjorner
d7f51f2443 try flags to fix gcc build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 18:20:23 -07:00
Nikolaj Bjorner
99bdb46158 int64_t 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 17:48:30 -07:00
Nikolaj Bjorner
8ab428b660 try new gcd 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-06 17:42:44 -07:00
Nikolaj Bjorner
add8d26807 Merge branch 'master' of https://github.com/z3prover/z3 2018-06-01 08:07:14 -07:00
Nikolaj Bjorner
fee4f91e2d add set operations to python request by Francois 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-01 08:07:06 -07:00
Nikolaj Bjorner
e2eb883c71 Merge branch 'master' of https://github.com/z3prover/z3 2018-05-30 16:48:17 -07:00
Nikolaj Bjorner
b9637924c4 fix #1662 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-30 16:47:17 -07:00
Nikolaj Bjorner
0d668e1428 fix #1661 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-30 03:18:22 -07:00
Nikolaj Bjorner
0aa3245c37 Merge branch 'master' of https://github.com/z3prover/z3 2018-05-29 20:55:46 -07:00
Nikolaj Bjorner
db3f439e88 fix memory leak from Arie 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-29 20:55:30 -07:00
Nikolaj Bjorner
6dc9c3a587 fix ml build breakd #1659, #1660 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-29 07:37:27 -07:00
Nikolaj Bjorner
da0239d200 fix #1655 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-25 21:21:27 -07:00
Nikolaj Bjorner
727ba13566 fix #1653 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-25 12:55:04 -07:00