import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.jacop.constraints.netflow.DomainStructure;
import org.jacop.constraints.netflow.NetworkBuilderCloneable;
import org.jacop.constraints.netflow.simplex.Arc;
import org.jacop.constraints.netflow.simplex.Node;
import org.jacop.core.Domain;
import org.jacop.core.FailException;
import org.jacop.core.IntDomain;
import org.jacop.core.IntVar;
import org.jacop.core.IntVarCloneable;
import org.jacop.core.IntervalDomain;
import org.jacop.core.Store;
import org.jacop.core.StoreCloneable;
import org.jacop.core.ValueEnumeration;