@Test
public void test1NeqSolve() {
for (int seed = 0; seed < 10; seed++) {
m = new CPModel();
s = new CPSolver();
int k = 9, k1 = 7, k2 = 6;
IntegerVariable v0 = makeIntVar("v0", 0, 10);
IntegerVariable v1 = makeIntVar("v1", 0, 10);
IntegerVariable v2 = makeIntVar("v2", 0, 10);
IntegerVariable v3 = makeIntVar("v3", 0, 10);
m.addConstraint(distanceNEQ(v0, v1, k));
m.addConstraint(distanceNEQ(v1, v2, k1));
m.addConstraint(distanceNEQ(v2, v3, k2));
s.read(m);
s.setVarIntSelector(new RandomIntVarSelector(s, seed + 32));
s.setValIntSelector(new RandomIntValSelector(seed));
try {
s.propagate();
} catch (ContradictionException e) {
LOGGER.info(e.getMessage());
}
s.solveAll();
int nbNode = s.getNodeCount();
LOGGER.info("solutions : " + s.getNbSolutions() + " nbNode : " + nbNode);
assertEquals(s.getNbSolutions(), 12147);
}
}
@Test
public void test3LTSolve() {
for (int seed = 0; seed < 10; seed++) {
m = new CPModel();
s = new CPSolver();
int k = 2;
IntegerVariable v0 = makeIntVar("v0", 0, 10);
IntegerVariable v1 = makeIntVar("v1", 0, 10);
m.addConstraint(distanceLT(v0, v1, k));
s.read(m);
s.setVarIntSelector(new RandomIntVarSelector(s, seed + 32));
s.setValIntSelector(new RandomIntValSelector(seed));
try {
s.propagate();
} catch (ContradictionException e) {
LOGGER.info(e.getMessage()); // To change body of catch statement use File | Settings | File
// Templates.
}
s.solveAll();
int nbNode = s.getNodeCount();
LOGGER.info("solutions : " + s.getNbSolutions() + " nbNode : " + nbNode);
assertEquals(s.getNbSolutions(), 31);
assertEquals(nbNodeFromRegulatModel(seed), nbNode);
}
}
private int nbNodeFromRegulatModel(int seed) {
m = new CPModel();
s = new CPSolver();
int k = 2;
IntegerVariable v0 = makeIntVar("v0", 0, 10);
IntegerVariable v1 = makeIntVar("v1", 0, 10);
List<int[]> ltuple = new LinkedList<int[]>();
for (int i = 0; i <= 10; i++) {
for (int j = 0; j <= 10; j++) {
if (Math.abs(i - j) < k) ltuple.add(new int[] {i, j});
}
}
m.addConstraint(regular(new IntegerVariable[] {v0, v1}, ltuple));
s.read(m);
s.setVarIntSelector(new RandomIntVarSelector(s, seed + 32));
s.setValIntSelector(new RandomIntValSelector(seed));
try {
s.propagate();
} catch (ContradictionException e) {
LOGGER.info(e.getMessage()); // To change body of catch statement use File | Settings | File
// Templates.
}
s.solveAll();
// LOGGER.info("solutions regular : " + s.getNbSolutions());
return s.getNodeCount();
}
@Test
public void test3BoundsSolve() {
for (int seed = 0; seed < 10; seed++) {
m = new CPModel();
s = new CPSolver();
int k = 9, k1 = 7, k2 = 6;
IntegerVariable v0 = makeIntVar("v0", 0, 10);
IntegerVariable v1 = makeIntVar("v1", 0, 10);
IntegerVariable v2 = makeIntVar("v2", 0, 10);
IntegerVariable v3 = makeIntVar("v3", 0, 10);
m.addVariables(Options.V_BOUND, v0, v1, v2, v3);
m.addConstraint(distanceEQ(v0, v1, k));
m.addConstraint(distanceEQ(v1, v2, k1));
m.addConstraint(distanceEQ(v2, v3, k2));
s.read(m);
s.setVarIntSelector(new RandomIntVarSelector(s, seed + 32));
s.setValIntSelector(new RandomIntValSelector(seed));
try {
s.propagate();
} catch (ContradictionException e) {
LOGGER.info(e.getMessage()); // To change body of catch statement use File | Settings | File
// Templates.
}
s.solveAll();
int nbNode = s.getNodeCount();
LOGGER.info("solutions : " + s.getNbSolutions() + " nbNode : " + nbNode);
assertEquals(s.getNbSolutions(), 4);
}
}