//
// Compare propagation of allDiff with clique of neq
// Note: problem is insoluble
//

import static choco.Choco.*;
import choco.cp.model.CPModel;
import choco.cp.solver.CPSolver;
import choco.kernel.model.Model;
import choco.kernel.solver.Solver;
import choco.kernel.model.variables.integer.IntegerExpressionVariable;
import choco.kernel.model.variables.integer.IntegerVariable;
import choco.kernel.solver.ContradictionException;

public class Prop1 {

  public static void main(String[] args) throws ContradictionException {

    Model m = new CPModel();
    IntegerVariable x = makeIntVar("X",1,2);
    IntegerVariable y = makeIntVar("Y",1,2);
    IntegerVariable z = makeIntVar("Z",1,2);

    IntegerVariable v[] = {x,y,z};
    m.addConstraint(allDifferent(v));

    System.out.println(m.pretty());

    Solver s = new CPSolver();
    s.read(m);
    s.propagate();

    System.out.println(s.pretty());   // propagation generates exception
  }
}