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Author SHA1 Message Date
Lev Nachmanson
33cbd29ed0 mv util/lp to math/lp
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
Lev Nachmanson
0a51417804 unroll static_matrix to avoid dead cells
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2018-07-31 22:57:10 -07:00
Lev Nachmanson
16b71fe911 work on static_matrix's cells
Signed-off-by: Lev <levnach@hotmail.com>

trying the new scheme in static_matrix : in progress

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

in the middle of changes in static_matrix

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

more fixes in static_matrix.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

debug

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixes in static_matrix

Signed-off-by: Lev <levnach@hotmail.com>

fixes in static_matrix, column_strip

Signed-off-by: Lev <levnach@hotmail.com>

fixes in static_matrix

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixes for static_matrix

Signed-off-by: Lev <levnach@hotmail.com>

work on static_matrix

Signed-off-by: Lev <levnach@hotmail.com>

work on static_matrix

Signed-off-by: Lev <levnach@hotmail.com>

progress in static_matrix

Signed-off-by: Lev <levnach@hotmail.com>

fix a bug in swap_with_head_cell

Signed-off-by: Lev <levnach@hotmail.com>

progress in static_matrix

Signed-off-by: Lev <levnach@hotmail.com>

compress rows and columns if needed

Signed-off-by: Lev <levnach@hotmail.com>

fix in compression of cells

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2018-07-29 20:45:13 -07:00
Lev Nachmanson
2bb94ed4fe remove warnings in scaler and use m_cut_solver_cycle_on_var
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>
2018-06-27 11:37:13 -07:00
Lev Nachmanson
6202b2f2e4 add cancellations
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

syntax errors

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

use std::vector instead of vector in cut_solver temporarily

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix in is_upper_bound, is_lower_bound

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add bound() for polynomial, needs more testing

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on resolve

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

implement resolve()

Signed-off-by: Lev Nachmanson <levnach@microsoft.com>

implement improves()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

replace low_bound by lower_bound

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

better printing in cut_solver.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add value vector to cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on bound propagaion for cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

bound propagation for integer inequalites

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

bound propagation for integer inequalites

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

bound propagattions on integers

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

adding m_explanation field to cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify bound propagation in cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

calculate conflict explanation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

change m_explanation type to a set

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

making cut_solver a member of int_solver, missing push/pop support

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

Nikolaj's comments

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

Nikolaj's comments

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

return explanations from cut_solver and hook up push/pop

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

hook up push/pop

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

using resize of std::vector

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

it is a big squashed commit

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

rename hpp to cpp

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixes in push/pop of cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

return simple inequalities a part of a conflict

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on propagation and the main loop

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add file

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

init m_v[j], the var values only when j is fixed

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

handle decide in cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

start on resolve_conflict

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

start on resolve_conflict

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

remove cut_solver_def.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

in the middle

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

change signature of resolve

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix the domain of the decided var

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on tightening of ineqs

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on tight ineqs

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on tightening

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on tightening

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

resolve conflict

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix in usage of resolve()

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on conflict resolution

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

cut_solver is not a template

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

represent var_info as a class, not a struct

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

make literal a class

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

better resolve_conflict scheme, and switch to *constraints in literals

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

debug conflict resolution in cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

switch to vector

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

remove nondetermenistic behavior from cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

debug resolve conflict

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix backjump

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix backjump

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix backjump

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix backjump

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

dumb explanation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

get rid of a parameter

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add lemmas origins

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use lemma_origins to provide correct explanations

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use lemma_origins to provide correct explanations

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

store lemmas in a separate vector

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use std::unordered_set for m_dependent_constraints

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use std::unordered_set for m_dependent_constraints

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix bugs with lemmas

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

finding conflicting cores

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

switch from changed variables to active_set

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

less active constraints

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

work on cut_solver.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

propagate simple constraing immediately

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

propagate simple constraints immediately

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixing bugs with active set

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

remove const_cast

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

towards unbounded variables

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

toward unbounded variables

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

toward unbounded variables

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

make lemmas_origins a set

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use correct hash and equal in m_lemma_origins

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add testing code

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add testing code

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

debug

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

debug unlimited vars

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

take in Nikolaj's comments and improvements

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

address the comments

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

handle unlimited vars in check_inconsistent

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

debug

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

detect trivial polynomials in resolve

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

Nikolaj's changes

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify handling of m_global_bound_var

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

decide on m_global_bound_var if it is not fixed

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify m_global_bound_var

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

remove m_global_bound_var, simplify the indexing of var_infos of cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

do not run cut_solver with vars without any bound

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

small changes

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add cancellation in cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

do not pop lemmas during a cut_solver run

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

treating cut_solver as an heurisitic

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

prepare for cut_solver returning undef

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify work with active_set in cut_solver, add stats

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify var_info literals

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix a bug in fill_conflict_explanation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix a bug in the conflict explanation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add timeout to validate_* in theory_lra.cpp

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify cut_solver, no special treatment for simple constraints

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

cleanup the cancel story

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

cleanup cancelling

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix a bug in push/pop of cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

extract a method in int_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

some progress with the new scheme

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add testing code

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixes in test and in literal creation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix a bug in bound propagation in cut_solver.h

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

simplify cut_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

provide valid conflict explanation

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use a lazy push in stacked_map

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use a lazy push in stacked_map

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

optimize stack operations on var_info's domains

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix a bug in tightening

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

use the standard tactics from qflia_tactic

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

spread the var domain stack over literals

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

spread the var domain stack over literals

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

avoid cycling in cut_solver.h and fixes in push/pop

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fixes after rebase

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2018-06-27 11:35:11 -07:00
Renamed from src/util/lp/random_updater.hpp (Browse further)