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Code Activity
14159 commits 24 branches 48 tags 158 MiB
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108 commits

Author SHA1 Message Date
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
Lev Nachmanson
a05dec99cf do not random_update int vars 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-02-03 16:01:56 -08:00
Nikolaj Bjorner
b0a28160f7 fix #2921 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-02-02 10:35:06 -08:00
Lev Nachmanson
35aa98436f fix term columns after rounding in cube() 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-30 14:29:36 -08:00
Lev Nachmanson
9694dc0c74 change in the test lp.cpp and in a trace statement 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-29 11:03:18 -08:00
Lev Nachmanson
8ebeaf03b4 rebase with Z3Prover/z3/master 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
30d35488d8 get_rid or inf eps 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
0e86c567cc prepare the mixed case 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
d310ae9060 rebase with Z3Prover 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
0b1023c2c7 do not add row with free basic vars in grobner, more tracing 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
687f30a2ce debug grobner and improve printing 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
868ea58aef start porting grobner basis functionality 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
006c53e484 remove a wrong assert from lar_solver.cpp 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
f4e7002ea3 forgotten changes after a rebase 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
1b8b09cddb fixes in horner's heuristic 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
207c1c509f fixes in horner's heuristic 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
c95f66e02a toward fetching existing terms intervals from lar_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
dfe0e85629 toward fetching existing terms intervals from lar_solver 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00
Lev Nachmanson
3c5b1086a1 fix remove lar_solver::add_constraint 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2020-01-28 10:04:21 -08:00