org.sat4j.tools
Class DecisionTracing

java.lang.Object
  org.sat4j.tools.DecisionTracing

All Implemented Interfaces:

Serializable, SearchListener

public class DecisionTracing
extends Object
implements SearchListener

Since:

2.2

See Also:

Serialized Form

Constructor Summary

DecisionTracing(String filename)

Method Summary

void	adding(int p) adding forced variable (conflict driven assignment)
void	assuming(int p) decision variable
void	backjump(int backjumpLevel) The solver is asked to backjump to a given decision level.
void	backtracking(int p) backtrack on a decision variable
void	beginLoop() starts a propagation
void	conflictFound(IConstr confl, int dlevel, int trailLevel) a conflict has been found.
void	conflictFound(int p) a conflict has been found while propagating values.
void	delete(int[] clause) delete a clause
void	end(Lbool result) End the search.
void	learn(IConstr c) learning a new clause
void	propagating(int p, IConstr reason) Unit propagation
void	restarting() The solver restarts the search.
void	solutionFound() a solution is found.
void	start() Start the search.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DecisionTracing

public DecisionTracing(String filename)

Method Detail

adding

public void adding(int p)

Description copied from interface: SearchListener

adding forced variable (conflict driven assignment)

Specified by:

adding in interface SearchListener

assuming

public void assuming(int p)

Description copied from interface: SearchListener

decision variable

Specified by:

assuming in interface SearchListener

backtracking

public void backtracking(int p)

Description copied from interface: SearchListener

backtrack on a decision variable

Specified by:

backtracking in interface SearchListener

beginLoop

public void beginLoop()

Description copied from interface: SearchListener

starts a propagation

Specified by:

beginLoop in interface SearchListener

conflictFound

public void conflictFound(IConstr confl,
                          int dlevel,
                          int trailLevel)

Description copied from interface: SearchListener

a conflict has been found.

Specified by:

conflictFound in interface SearchListener

Parameters:

confl - TODO

dlevel - TODO

trailLevel - TODO

conflictFound

public void conflictFound(int p)

Description copied from interface: SearchListener

a conflict has been found while propagating values.

Specified by:

conflictFound in interface SearchListener

Parameters:

p - the conflicting value.

delete

public void delete(int[] clause)

Description copied from interface: SearchListener

delete a clause

Specified by:

delete in interface SearchListener

end

public void end(Lbool result)

Description copied from interface: SearchListener

End the search.

Specified by:

end in interface SearchListener

Parameters:

result - the result of the search.

learn

public void learn(IConstr c)

Description copied from interface: SearchListener

learning a new clause

Specified by:

learn in interface SearchListener

propagating

public void propagating(int p,
                        IConstr reason)

Description copied from interface: SearchListener

Unit propagation

Specified by:

propagating in interface SearchListener

reason - TODO

solutionFound

public void solutionFound()

Description copied from interface: SearchListener

a solution is found.

Specified by:

solutionFound in interface SearchListener

start

public void start()

Description copied from interface: SearchListener

Start the search.

Specified by:

start in interface SearchListener

restarting

public void restarting()

Description copied from interface: SearchListener

The solver restarts the search.

Specified by:

restarting in interface SearchListener

backjump

public void backjump(int backjumpLevel)

Description copied from interface: SearchListener

The solver is asked to backjump to a given decision level.

Specified by:

backjump in interface SearchListener