Nikolaj Bjorner
87d4ce2659
working on #5614
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there are some different sources for the performance regression illustrated by the example. The mitigations will be enabled separately:
- m_bv_to_propagate is too expensive
- lp_bound_propagator misses equalities in two different ways:
- it resets row checks after backtracking even though they could still propagate
- it misses equalities for fixed rows when the fixed constant value does not correspond to a fixed variable.
FYI @levnach
2021-11-02 14:55:39 -07:00
Henrich Lauko
96671cfc73
Add and fix a few general compiler warnings. ( #5628 )
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* rewriter: fix unused variable warnings
* cmake: make missing non-virtual dtors error
* treewide: add missing virtual destructors
* cmake: add a few more checks
* api: add missing virtual destructor to user_propagator_base
* examples: compile cpp example with compiler warnings
* model: fix unused variable warnings
* rewriter: fix logical-op-parentheses warnings
* sat: fix unused variable warnings
* smt: fix unused variable warnings
2021-10-29 15:42:32 +02:00
Nikolaj Bjorner
0182187296
fix regression in arithmetic resource bound
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2021-06-03 11:41:42 -07:00
Nikolaj Bjorner
5127014f18
track cuts
2021-06-01 15:26:36 -07:00
Nikolaj Bjorner
8412ecbdbf
fixes to new solver, add mode for using nlsat solver eagerly from nla_core
2021-03-14 13:57:04 -07:00
Nikolaj Bjorner
44679d8f5b
arith_solver ( #4733 )
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* porting arithmetic solver
* integrating arithmetic
* lp
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* na
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* na
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* na
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-10-16 10:49:46 -07:00
Nikolaj Bjorner
4039352837
add ability to touch variables for bound propagation
2020-07-30 10:20:17 -07:00
Lev Nachmanson
b996bc1f02
remove cheap equalities with the table
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-07-04 09:33:45 -07:00
Lev Nachmanson
ffaa7d0b27
debug cheap_eqs
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-06-20 11:31:22 -07:00
Lev Nachmanson
dd30b5e3af
some simplifications in cheap eqs
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-06-12 22:11:11 -07:00
Lev Nachmanson
110ab5e6ef
debug cheap_eqs
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-06-12 22:11:11 -07:00
Nuno Lopes
98b5abb1d4
buffer: require a move constructor to avoid copies
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remove unneded copy constructors from several classes
2020-06-03 11:57:49 +01:00
Lev Nachmanson
530f77281c
fixes in branching
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-04-26 16:13:47 -07:00
Lev Nachmanson
ab92c20106
add option branch_flip to lp_settings
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-03-25 19:43:55 -07:00
Lev Nachmanson
f45e17c47e
fix column patching
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-02-07 13:42:39 -08:00
Lev Nachmanson
f4165fe5cf
avoid a warning and rebase with Z3Prover
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
Lev Nachmanson
dd9935de7d
preparing a call to pdd_grobner
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
Lev Nachmanson
490672a5ba
start porting grobner basis functionality
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
Lev Nachmanson
06dbc623c7
start porting grobner basis functionality
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
Lev Nachmanson
5435942228
add statistics on horner's heuristic
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
Lev Nachmanson
33cbd29ed0
mv util/lp to math/lp
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
