Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
correction in the sign of gomory_cut
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
fix in the gomory cut sign
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
try using lemmas of cut_solver as cuts
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
add find_cube() proposed by Nikolaj
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
restore m_int_branch_cut_solver to 8
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
accept empty lar_terms in theory_lra and also do not create empty lar_terms/lemmas
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
qflia_tactic
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
call find_feasible solution to recover for a failure in find_cube
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
do not tighten unused terms
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
get rid of inf_int_set
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
fix a bug with an accidental solution in cube
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
get rid of inf_int_set
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
bug fix with has_int_var() for lar_solver
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
fix in find_inf_int_base_column
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
detect slow propagations
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
fiddle with the stop conditions
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
get rid of constraint->m_predecessors, fix a bug in push/pop with lemmas
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
clean detection of stale lemmas in pop
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
add constraints lazily to cut_solver
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
refactor some of cut_solver classes into include files
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
prepare to index constraint from 0 to to n - 1, where n is the number of constraints
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
prepare for constraint priority
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
use priorities in active_set
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
remove unnecesessary parameters
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
speedup bound propagations
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
restore tactics
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
speedup bound propagation by avoiding some calls to propagate_constraint_only_one_unlim
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
fixes by Nikolaj
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
fix print lp_core_solver
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
work on gomory test, subs terms indices correctly
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
correct const_iterator for lar_term
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
improve static_matrix with iterators
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
make row_strip a struct
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
move row_strip outside of static_matrix
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
add const_iterator to row_strip
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
remove the hierarchy of iterators - use std::iterators
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
adding gcd_test stats and taking care of for iterators
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
restore qflia_tactic.cpp
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
run gcd_test according to settings()
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
experiment with picking a narrow or random branch
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
