org.sat4j.minisat.core
Interface RestartStrategy

All Superinterfaces:

ConflictTimer, Serializable

All Known Implementing Classes:

ArminRestarts, LubyRestarts, MiniSATRestarts, NoRestarts

public interface RestartStrategy
extends Serializable, ConflictTimer

Abstraction allowing to choose various restarts strategies.

Author:

leberre

Method Summary

SearchParams	getSearchParams()
void	init(SearchParams params) Hook method called just before the search starts.
void	newLearnedClause(Constr learned, int trailLevel)
long	nextRestartNumberOfConflict() Deprecated.
void	onBackjumpToRootLevel() Called when the solver backjumps to the root level.
void	onRestart() Hook method called when a restart occurs (once the solver has backtracked to top decision level).
boolean	shouldRestart() Ask the strategy if the solver should restart.

Methods inherited from interface org.sat4j.minisat.core.ConflictTimer

newConflict, reset

Method Detail

init

void init(SearchParams params)

Hook method called just before the search starts.

Parameters:

params - the user's search parameters.

nextRestartNumberOfConflict

@Deprecated
long nextRestartNumberOfConflict()

Deprecated.

Ask for the next restart in number of conflicts. Deprecated since 2.3.2

Returns:

the delay in conflicts before the next restart.

shouldRestart

boolean shouldRestart()

Ask the strategy if the solver should restart.

Returns:

true if the solver should restart, else false.

onRestart

void onRestart()

Hook method called when a restart occurs (once the solver has backtracked to top decision level).

onBackjumpToRootLevel

void onBackjumpToRootLevel()

Called when the solver backjumps to the root level.

Since:

2.3.2

getSearchParams

SearchParams getSearchParams()

newLearnedClause

void newLearnedClause(Constr learned,
                      int trailLevel)