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5142 commits 42 branches 51 tags 169 MiB
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544 commits

Author SHA1 Message Date
Christoph M. Wintersteiger
bf92e53688 Annotation fix for pattern/quantifier probes 2016-03-30 18:35:49 +01:00
Christoph M. Wintersteiger
1724811e1b qffp tactic cleaned up to be in line with the default behavior of other tactics. 2016-03-30 15:23:46 +01:00
Christoph M. Wintersteiger
cb2bf48254 Added has_quantifier probe 2016-03-30 15:22:53 +01:00
Christoph M. Wintersteiger
d746b410cf whitespace 2016-03-30 15:22:21 +01:00
Nikolaj Bjorner
7eec68c954 add handling for distinct to bit-blaster 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-28 11:22:54 -07:00
Nikolaj Bjorner
fd6fe87c5d enable qe-lite for UFNIA benchmarks 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-22 15:41:21 -07:00
Nikolaj Bjorner
5e737641b7 remove qe-lite pass in quant_tatics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-21 16:57:30 -07:00
Nikolaj Bjorner
680c28d083 remove nnf conversion which breaks NRA property 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-20 16:34:04 -07:00
Nikolaj Bjorner
1a5449c3d4 enable new NRA solver for nra benchmarks 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-20 12:35:29 -07:00
Nikolaj Bjorner
92b5aac12a adjusting new tactics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-20 10:13:23 -07:00
Nikolaj Bjorner
f0bdcbb3db expose qsat tactic to default tactics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-19 18:40:59 -07:00
Nikolaj Bjorner
f175f864ec merge useful utilities from qsat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-19 12:01:44 -07:00
Nikolaj Bjorner
ab82fee398 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-03-17 13:06:21 -07:00
Christoph M. Wintersteiger
94054593a4 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-03-17 17:52:32 +00:00
Christoph M. Wintersteiger
cc04fdbd70 Added eager ackermannization to QF_FP, so that small numbers of unspecified operators are eliminated upfront. 2016-03-17 17:52:26 +00:00
Nuno Lopes
f5c4800eec reduce-args: last fix for may_be_unique to support quantified variables in arbitrary exprs 2016-03-17 15:29:48 +00:00
Nuno Lopes
facb421398 reduce-args: fix unsoundness 2: f(v + 2), where b is quantified 2016-03-17 13:27:07 +00:00
Nuno Lopes
aed4619066 reduce-args: fixed unsoundness introduced in my previous commit 
skip an UF arg if it's quantified
e.g. forall a . f(a, b) -> f(b) (but not f)
 2016-03-17 13:14:43 +00:00
Christoph M. Wintersteiger
cdc8e1303a Bugfix for fp.to_*_unspecified. 
Fixes #507
 2016-03-16 16:16:29 +00:00
Christoph M. Wintersteiger
99d7a47f82 Bugfixes for unspecified results from fp.to_* (models are still incomplete). 
Relates to #507
 2016-03-15 21:45:54 +00:00
Nikolaj Bjorner
3dfc0a93f6 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-03-13 12:09:25 -04:00
mikolas
419e2c4899 Inc sat for ackr. 2016-03-10 17:36:06 +00:00
Nuno Lopes
d6c3260db7 reduce_args_tactic: make it aware that 'a + const' may be a unique value in bv theory 
it allows us to remove UFs that are of the form f(a + 1), f(a + 2), etc..
 2016-03-10 10:15:09 +00:00
Nikolaj Bjorner
2354e747bf Merge branch 'master' of https://github.com/Z3Prover/z3 2016-03-09 21:33:16 -08:00
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
6ad6998c57 Merge branch 'master' of https://github.com/Z3Prover/z3 2016-03-09 15:53:16 -08:00
Nikolaj Bjorner
03a0a6f6a1 refactor occurrence utility for common use (to be used in ctx_simplifier) per Nuno's suggestion 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-09 15:53:02 -08:00
martin-neuhaeusser
c7a7cc74fa Fix bug in ufbv tactic that enabled ackermannization even if unsat core or proof generation are requested 2016-03-09 14:06:39 +01:00
Nikolaj Bjorner
5994c5a948 fix partial model tracking over cancellation/exceptions, reported by August Shi. Fix regression test for fp-to-real, reset the pre-processor in inc_sat_solver on exceptions 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-07 16:42:29 -08:00
Nikolaj Bjorner
640308b546 make proto-model evaluation use model_evaluator instead of legacy evaluator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-05 10:27:19 -08:00
Nikolaj Bjorner
70f13ced33 make proto-model evaluation use model_evaluator instead of legacy evaluator 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-03-05 10:14:15 -08:00
Christoph M. Wintersteiger
9dfc2bc61e Fixed memory leaks in fpa2bv converter. 
Fixes #480
 2016-03-05 16:47:08 +00:00
Christoph M. Wintersteiger
fedc6d4754 Fixed memory leak in fpa2bv tactic. 2016-03-05 12:54:36 +00:00
Nuno Lopes
62e46aacd9 bv_bounds: make may_simplify more precise to skip exprs with just 1 bound expr 
speedups up to 3x in selected benchmarks
 2016-03-01 11:31:08 +00:00
Nikolaj Bjorner
4a15d756d7 uint64_t -> uint64 for cross platform 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-02-29 22:16:03 -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
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
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
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
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
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
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
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
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