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Code Activity
16731 commits 24 branches 48 tags 158 MiB
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126 commits

Author SHA1 Message Date
Lev Nachmanson
7caae3f5d2 small improvements in tableau in rows and bound propagation 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-13 16:04:25 -07:00
Nikolaj Bjorner
9b609af8fc fix #3924 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-12 16:19:54 -07:00
Lev Nachmanson
5c9fd90031 work on random_updates 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-07 19:50:50 -07:00
Nikolaj Bjorner
c2e5cd78c8 change lar_terms to use column indices 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-06 12:13:59 -07:00
Nikolaj Bjorner
080dbb13b0 tv alignment, code review comments 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-05 03:35:19 -07:00
Nikolaj Bjorner
0735491557 path fix #3747, this patches incoherent behavior of terms / ival from lar_solver. The variables occurring in terms are mapped to columns and not as original variables/terms. theory_lra has to interact with the column_corresponds_to_term test instead of relying on the terms themselves carrying the relevant information 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-04 14:27:56 -07:00
Lev Nachmanson
9d58fccd41 fix in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-03 12:43:20 -07:00
Lev Nachmanson
7890555455 fix in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-03 12:37:57 -07:00
Lev Nachmanson
7fe46de266 trace random update 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-03 12:00:19 -07:00
Lev Nachmanson
55329ea935 more fixes in patching of monomials 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-04-02 14:47:06 -07:00
Nikolaj Bjorner
cc394f0fe9 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-01 03:42:13 -07:00
Lev Nachmanson
cf0952c232 roll back in maximize_term if the integrality is broken 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-30 17:59:45 -07:00
Lev Nachmanson
3e845010dd replace v by j in lp printouts 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-30 15:59:03 -07:00
Lev Nachmanson
7936df8e0b pass std::function as const aliases 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-30 12:20:47 -07:00
Lev Nachmanson
9be7bda69a fix a bug in column patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-29 15:03:46 -07:00
Lev Nachmanson
7a950dd667 patch reals 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-29 15:03:46 -07:00
Lev Nachmanson
3237bd9243 better tracing 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-29 15:03:46 -07:00
Lev Nachmanson
f5b62015fc change the return type of ival.var() to tv 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
ea964e5c3b rename int_set to u_set 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
bc5b68b16e convert term indices to columns in lar_solver::add_equality() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
e2538afd32 better diagnostics in lar_solver and more efficient int_set::resize() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Nikolaj Bjorner
2975873b91 ensure encapsulation boundaries 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
c16d90307b more careful resize in int_set 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
e0b95979e6 detect the status change in lar_solver::add_equality() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
38eca3b66a fixes in order lemmas and printing terms 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
316f2194e0 rename 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Nikolaj Bjorner
e50082b484 add tv 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
d758a08497 do not create inf var 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
6c5d7fbe96 fixes in max term with tableau 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
c2e7dd3378 catch the possible infeasible column when adding an equality 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
8af245a410 use a simpler encoding for term indices 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
906d52ca1c accept term indices as columns in some lar_solver queries 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
f28c80e3b1 reorder fields in lar_solver constructor to avoid a warning 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Nikolaj Bjorner
b67d136849 hide flag on registering variables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
26631ce38d add a unit test for monics, plus some cosmetic changes 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
719603f185 register inner terms with null var 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
a0251ac745 do not register equality terms created in lar_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
285ff9540d make sure that the term external index has not been used 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
f636a481d3 fixes in bound setting in cube, and in lar_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
a80eb13420 fixes in bound setting in cube, and in lar_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
6ea0bcb454 round the bound for columns and terms when it can be deduced that they are integral 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
b403b96d38 remove an assert 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Lev Nachmanson
762f265616 merge with master 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-03-25 19:43:55 -07:00
Nikolaj Bjorner
02b074e28b compile constraints during internalization 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-07 19:28:17 -08:00
Lev Nachmanson
f45e17c47e fix column patching 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-02-07 13:42:39 -08:00
Nikolaj Bjorner
8c016abb12 build issues 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-07 11:16:57 -08:00
Nikolaj Bjorner
800bc757ae isolate constraints in a constraint_set 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-07 09:24:45 -08:00
Nikolaj Bjorner
024ca86386 isolate constraints in a constraint_set 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-07 09:16:14 -08:00
Nikolaj Bjorner
a59745c2f2 isolate constraints in a constraint_set 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-07 09:13:40 -08:00
Lev Nachmanson
06173aa4d7 do not use nl variables in random_update() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-02-04 11:51:37 -08:00