Nikolaj Bjorner
64e0e785e7
#5953
2022-08-21 18:28:07 -07:00
Nikolaj Bjorner
c3d635cf77
handle build warning
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2022-08-18 12:50:30 -07:00
Nikolaj Bjorner
1a5503c87b
enable new code path for mod handling
2022-08-17 07:31:26 -07:00
Nikolaj Bjorner
b169292743
add parameter descriptions
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2022-08-16 08:26:53 -07:00
Nikolaj Bjorner
583dae2e27
enable nested division
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2022-08-15 16:11:00 -07:00
Nikolaj Bjorner
138f0d269c
fix regression found by fuzzers fix #6271
2022-08-14 12:26:33 -07:00
Nikolaj Bjorner
550d6914b1
updates to div/mod handling in quantifier projection
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note: the new code remains disabled at this point.
2022-08-12 14:39:33 -04:00
Nikolaj Bjorner
03385bf78d
improve quantifier elimination for arithmetic
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This update changes the handling of mod and adds support for nested div terms.
Simple use cases that are handled using small results are given below.
```
(declare-const x Int)
(declare-const y Int)
(declare-const z Int)
(assert (exists ((x Int)) (and (<= y (* 10 x)) (<= (* 10 x) z))))
(apply qe2)
(reset)
(declare-const y Int)
(assert (exists ((x Int)) (and (> x 0) (= (div x 41) y))))
(apply qe2)
(reset)
(declare-const y Int)
(assert (exists ((x Int)) (= (mod x 41) y)))
(apply qe2)
(reset)
```
The main idea is to introduce definition rows for mod/div terms.
Elimination of variables under mod/div is defined by rewriting the variable to multiples of the mod/divisior and remainder.
The functionality is disabled in this push.
2022-08-12 10:20:43 -04:00
Bruce Mitchener
5014b1a34d
Use = default for virtual constructors.
2022-08-05 18:11:46 +03:00
Nikolaj Bjorner
51ed13f96a
update topological sort to use arrays instead of hash tables, expose Context over Z3Object for programmability
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2022-06-08 06:28:24 -07:00
Nikolaj Bjorner
d0fb3cba15
#5641 - projection that skips interpreted functions can violate model evaluation.
2022-01-02 17:45:43 -08:00
Nikolaj Bjorner
fea14245a0
#5454
2021-08-11 19:43:42 -07:00
Nikolaj Bjorner
a4cc9e7895
#5429 #5445
2021-08-01 12:49:36 -07:00
Nikolaj Bjorner
2f49094d49
change debug output
2021-07-26 19:36:16 -07:00
Nikolaj Bjorner
e5e7c510d5
#5422
2021-07-21 07:14:54 -07:00
Nikolaj Bjorner
2ccfb1937d
na
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-07-11 23:20:19 +02:00
Nikolaj Bjorner
cab1076514
#5336
2021-07-11 21:00:58 +02:00
Nikolaj Bjorner
45228bf8fb
#5323 heap use after free
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-06-20 09:25:19 -07:00
Nikolaj Bjorner
c6f0afa008
#5324
2021-06-08 12:29:16 -07:00
Nikolaj Bjorner
d450fd4227
#5215
2021-05-19 10:03:49 -07:00
Nikolaj Bjorner
55f8ad068f
fix #5262
2021-05-17 15:51:03 -07:00
Nikolaj Bjorner
4a6083836a
call it data instead of c_ptr for approaching C++11 std::vector convention.
2021-04-13 18:17:35 -07:00
Nikolaj Bjorner
8f577d3943
remove ast_manager get_sort method entirely
2021-02-02 13:57:01 -08:00
Nikolaj Bjorner
937b61fc88
fix build, refactor
2021-02-02 05:26:57 -08:00
Nikolaj Bjorner
3ae4c6e9de
refactor get_sort
2021-02-02 04:45:54 -08:00
Nikolaj Bjorner
4455f6caf8
move to get_sort as method, add opt_lns pass, disable xor simplification unless configured, fix perf bug in model converter update trail
2021-02-02 03:58:19 -08:00
Nikolaj Bjorner
4ca6d6951f
use updated C++ features
2021-01-07 17:32:05 -08:00
Nikolaj Bjorner
2e684d58d2
redo purification
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-10-29 11:06:31 -07:00
Nikolaj Bjorner
e2fbd05fe7
adding argument restriction to mbqi, fix tracking of m_src/m_dst for expr_safe_replace and avoid resetting the cache.
2020-10-27 11:41:52 -07:00
Nikolaj Bjorner
1ee2ba2a9b
mbqi
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-10-26 11:06:40 -07:00
Nikolaj Bjorner
c9900720f8
na
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-10-22 11:31:47 -07:00
Nikolaj Bjorner
72d407a49f
mbp ( #4741 )
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* adding dt-solver
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* dt
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* move mbp to self-contained module
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* files
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* Create CMakeLists.txt
* dt
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* rename to bool_var2expr to indicate type class
* mbp
* na
* add projection
* na
* na
* na
* na
* na
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* deps
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* testing arith/q
* na
* newline for model printing
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-10-21 15:48:40 -07:00
Nikolaj Bjorner
2f756da294
adding dt-solver ( #4739 )
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* adding dt-solver
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* dt
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* move mbp to self-contained module
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* files
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* Create CMakeLists.txt
* dt
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* rename to bool_var2expr to indicate type class
* mbp
* na
2020-10-18 15:28:21 -07:00
