Nikolaj Bjorner
ea1f50b77e
simplify extended contains patterns
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-05-28 19:11:29 -07:00
Nikolaj Bjorner
220b8afd97
m is now an attribute on theory_smt
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-05-28 10:36:51 -07:00
Nikolaj Bjorner
6d17c656bd
merge
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-05-28 10:32:38 -07:00
Murphy Berzish
71ea7287bb
z3str3: detect and give up when symbolic automaton construction fails ( #4384 )
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typically this will happen due to non-constant terms in a RegLan expression
2020-05-28 09:57:33 -07:00
Murphy Berzish
f3b2a082ae
z3str3: make counterexamples less naive, and check regex membership more efficiently ( #4358 )
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* z3str3: make counterexamples less naive, and check regex membership more efficiently
* z3str3: construct even better counterexamples for regex membership
2020-05-28 09:57:08 -07:00
Murphy Berzish
1c760b04cf
re.range with non-unit arguments is the empty language ( #4360 )
2020-05-17 19:08:50 -07:00
Murphy Berzish
3147be66fe
z3str3: fix up regex heuristics ( #4342 )
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fixes #4308 , partially fixes #4309
2020-05-16 17:17:32 -07:00
Murphy Berzish
bd0180925b
z3str3: don't crash when finding initial bounds for a regex that has no solutions ( #4276 )
2020-05-11 17:41:55 -07:00
Nikolaj Bjorner
becf423c77
remove level of indirection for context and ast_manager in smt_theory ( #4253 )
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* remove level of indirection for context and ast_manager in smt_theory
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* add request by #4252
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* move to def
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* int
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-05-08 16:46:03 -07:00
Murphy Berzish
d21911c073
z3str3: fix support for re.complement and re.intersection
2020-04-24 17:49:26 -05:00
Murphy Berzish
85fd139c7f
z3str3: assert precondition for regex linearity axiom
2020-02-13 18:19:24 -08:00
Murphy Berzish
be99d3d450
z3str3: refactoring, move regex automata methods to theory_str_regex
2019-10-25 18:06:06 -07:00
