Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
	at org.sat4j.minisat.orders.AbstractPhaserecordingSelectionStrategy.init(Unknown Source)
	at org.sat4j.minisat.orders.VarOrderHeap.init(Unknown Source)
	at org.sat4j.minisat.core.Solver.isSatisfiable(Unknown Source)
	at org.sat4j.tools.SolverDecorator.isSatisfiable(Unknown Source)
	at org.sat4j.opt.AbstractSelectorVariablesDecorator.admitABetterSolution(Unknown Source)
	at org.sat4j.opt.MaxSatDecorator.admitABetterSolution(Unknown Source)
	at org.sat4j.opt.AbstractSelectorVariablesDecorator.admitABetterSolution(Unknown Source)
	at org.sat4j.AbstractOptimizationLauncher.solve(Unknown Source)
	at org.sat4j.AbstractLauncher.run(Unknown Source)
	at org.sat4j.maxsat.GenericOptLauncher.main(Unknown Source)