@Override
public boolean inject(ReconfigurationProblem rp) {
Solver solver = rp.getSolver();
Collection<Node> nodes = constraint.getInvolvedNodes();
BoolVar[] spareNode = new BoolVar[nodes.size()];
int i = 0;
for (Node node : constraint.getInvolvedNodes()) {
BoolVar state = rp.getNodeAction(node).getState();
IntVar NbVms = rp.getNbRunningVMs()[rp.getNode(node)];
spareNode[i] = VF.bool(StringUtils.randomName(), solver);
// if the server is off (state = false), then it is not free
solver.post(new FastImpliesEq(VF.not(state), spareNode[i], 0));
// if the server hosts VMs, then it is not free
solver.post(new FastImpliesEq(ICF.arithm(NbVms, "!=", 0).reif(), spareNode[i], 0));
i++;
}
IntVar spareNodes = VF.bounded("freeNumber", 0, nodes.size(), solver);
solver.post(ICF.sum(spareNode, spareNodes));
solver.post(ICF.arithm(spareNodes, ">=", constraint.getMinSpareNodes()));
return true;
}
@Test(groups = "1s")
public void testJL() {
Solver solver = new Solver();
final SetVar s0 = VF.set("s0", 0, 1, solver);
final BoolVar b0 = VF.bool("b0", solver);
final BoolVar b1 = VF.bool("b1", solver);
final IntVar i0 = VF.bool("i0", solver);
solver.set(ISF.lexico_LB(i0));
solver.post(SCF.bool_channel(new BoolVar[] {b0, b1}, s0, 0));
solver.post(SCF.cardinality(s0, VF.fixed(0, solver)));
solver.findSolution();
solver.getSearchLoop().reset();
solver.findSolution();
}
protected Solver intlincomb(int[][] domains, int[] coeffs, int b, int op) {
Solver solver = new Solver();
IntVar[] bins = new IntVar[domains.length];
for (int i = 0; i < domains.length; i++) {
bins[i] =
VariableFactory.bounded(
"v_" + i, domains[i][0], domains[i][domains[i].length - 1], solver);
}
String opname = "=";
if (op != 0) {
if (op > 0) {
opname = ">=";
} else {
opname = "<=";
}
}
IntVar sum = VariableFactory.bounded("scal", -99999999, 99999999, solver);
Constraint[] cstrs =
new Constraint[] {
IntConstraintFactory.scalar(bins, coeffs, sum),
IntConstraintFactory.arithm(sum, opname, b)
};
solver.post(cstrs);
solver.set(IntStrategyFactory.lexico_LB(bins));
return solver;
}
@Test(groups = "1s")
public void testSimpleAuto() {
Solver solver = new Solver();
int n = 10;
IntVar[] vars = new IntVar[n];
for (int i = 0; i < n; i++) {
vars[i] = VariableFactory.enumerated("x_" + i, 0, 2, solver);
}
FiniteAutomaton auto = new FiniteAutomaton();
int start = auto.addState();
int end = auto.addState();
auto.setInitialState(start);
auto.setFinal(start);
auto.setFinal(end);
auto.addTransition(start, start, 0, 1);
auto.addTransition(start, end, 2);
auto.addTransition(end, start, 2);
auto.addTransition(end, start, 0, 1);
solver.post(IntConstraintFactory.regular(vars, auto));
solver.set(IntStrategyFactory.lexico_LB(vars));
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 59049);
}
private static Pair parseKnapsack(BufferedReader in, Solver solver) throws IOException {
int objectives = Integer.parseUnsignedInt(in.readLine());
int objects = Integer.parseUnsignedInt(in.readLine());
int capacity = Integer.parseUnsignedInt(in.readLine());
int[][] energies = parse2dArray(in);
if (energies.length != objectives) {
throw new IOException();
}
for (int[] energy : energies) {
if (energy.length != objects) {
throw new IOException();
}
}
int[] weights = parse1dArray(in);
if (weights.length != objects) {
throw new IOException();
}
IntVar[] occurences = VF.enumeratedArray("occurences", objects, 0, 50, solver);
IntVar totalWeight = VF.enumerated("totalWeight", 0, capacity, solver);
IntVar[] totalEnergies = new IntVar[energies.length];
for (int i = 0; i < energies.length; i++) {
totalEnergies[i] = VF.enumerated("totalEnergy[" + i + "]", 0, sum(energies[i]), solver);
solver.post(ICF.knapsack(occurences, totalWeight, totalEnergies[i], weights, energies[i]));
}
return new Pair(totalEnergies, objects);
}
@Test(groups = "1s")
public void testregExp4() {
Solver solver = new Solver();
IntVar[] CS = VF.enumeratedArray("CS", 2, 0, 3, solver);
solver.post(ICF.regular(CS, new FiniteAutomaton(".*", 0, 3)));
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 16);
}
@Test(groups = "1s")
public void testIss237_1() {
Solver solver = new Solver();
BoolVar[] bs = VF.boolArray("b", 3, solver);
solver.post(ICF.scalar(bs, new int[] {1, 2, 3}, "=", VF.fixed(2, solver)));
Chatterbox.showSolutions(solver);
solver.findAllSolutions();
}
@Test(groups = "1s")
public void test3() {
Solver s = new Solver();
IntVar three = VF.fixed(3, s);
IntVar two = VF.fixed(2, s);
s.post(ICF.arithm(three, "=", two, "+", 1));
Assert.assertTrue(s.findSolution());
Assert.assertEquals(ESat.TRUE, s.isSatisfied());
}
@Test(groups = "1s")
public void test1() {
Solver s = new Solver();
IntVar two1 = VF.fixed(2, s);
IntVar two2 = VF.fixed(2, s);
s.post(ICF.arithm(two1, "=", two2));
Assert.assertTrue(s.findSolution());
Assert.assertEquals(ESat.TRUE, s.isSatisfied());
}
@Test(groups = "1s")
public void testregExp8() {
Solver solver = new Solver();
IntVar[] CS = VF.enumeratedArray("CS", 3, new int[] {43, 59, 117}, solver);
solver.post(ICF.regular(CS, new FiniteAutomaton("<43><59><117>")));
solver.set(ISF.lexico_LB(CS));
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 1);
}
@Test(groups = "1s")
public void test1() {
Solver solver = new Solver("t1");
IntVar x = VariableFactory.bounded("X", 1, 3, solver);
IntVar y = VariableFactory.bounded("Y", 1, 3, solver);
solver.post(IntConstraintFactory.arithm(x, ">=", y));
solver.post(IntConstraintFactory.arithm(x, "<=", 2));
solver.findSolution();
}
@Test(groups = "1s")
public void testregExp6() {
Solver solver = new Solver();
IntVar[] CS = VF.enumeratedArray("CS", 4, 0, 3, solver);
solver.post(ICF.regular(CS, new FiniteAutomaton("0{2,3}1*")));
Chatterbox.showSolutions(solver);
Chatterbox.showDecisions(solver);
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 2);
}
public void solveProblem() {
Solver solver = new Solver();
// Decision selection
BoolVar Root = (BoolVar) VariableFactory.fixed(1, solver);
BoolVar A = (BoolVar) VariableFactory.fixed(1, solver);
BoolVar B = (BoolVar) VariableFactory.fixed(1, solver);
BoolVar C = (BoolVar) VariableFactory.fixed(1, solver);
BoolVar D = VariableFactory.bool("D", solver);
BoolVar E = VariableFactory.bool("E", solver);
BoolVar A1 = VariableFactory.bool("A1", solver);
BoolVar A2 = VariableFactory.bool("A2", solver);
BoolVar C1 = VariableFactory.bool("C1", solver);
BoolVar C2 = VariableFactory.bool("C2", solver);
BoolVar C3 = VariableFactory.bool("C3", solver);
BoolVar E1 = VariableFactory.bool("E1", solver);
BoolVar E2 = VariableFactory.bool("E2", solver);
BoolVar e1 = VariableFactory.bool("e1", solver);
BoolVar e2 = VariableFactory.bool("e2", solver);
BoolVar e3 = VariableFactory.bool("e3", solver);
// Decision cost
IntVar A1Cost = VariableFactory.bounded("A1Cost", 0, 500, solver);
IntVar A2Cost = VariableFactory.bounded("A2Cost", 0, 200, solver);
IntVar C1Cost = VariableFactory.bounded("C1Cost", 0, 600, solver);
IntVar C2Cost = VariableFactory.bounded("C2Cost", 0, 400, solver);
IntVar C3Cost = VariableFactory.bounded("C3Cost", 0, 300, solver);
IntVar E1Cost = VariableFactory.bounded("E1Cost", 0, 450, solver);
IntVar e1Cost = VariableFactory.bounded("e1Cost", 0, 350, solver);
IntVar e2Cost = VariableFactory.bounded("e2Cost", 0, 350, solver);
IntVar e3Cost = VariableFactory.bounded("e3Cost", 0, 500, solver);
IntVar[] Vars = new IntVar[9];
Vars[0] = A1Cost;
Vars[1] = A2Cost;
Vars[2] = C1Cost;
Vars[3] = C2Cost;
Vars[4] = C3Cost;
Vars[5] = E1Cost;
Vars[6] = e1Cost;
Vars[7] = e2Cost;
Vars[8] = e3Cost;
int maxValue = 3650;
IntVar TotalCost = VariableFactory.bounded("TotalCost", 0, maxValue, solver);
solver.post(IntConstraintFactory.sum(Vars, TotalCost));
Chatterbox.showSolutions(solver);
solver.findOptimalSolution(ResolutionPolicy.MAXIMIZE, TotalCost);
Chatterbox.printStatistics(solver);
}
@Test(groups = "1s")
public void testJL2() {
for (int k = 0; k < 50; k++) {
Solver s = new Solver();
final IntVar i = VF.enumerated("i", -2, 2, s);
final IntVar j = VF.enumerated("j", -2, 2, s);
// Chatterbox.showDecisions(s);
// Chatterbox.showSolutions(s);
s.set(ISF.random_value(new IntVar[] {i, j}));
s.post(new Constraint("Constraint", new PropTestDM1(i, j), new PropTestDM2(i, j)));
s.findAllSolutions();
}
}
@Test(groups = "1s")
public void test2() {
Solver solver = new Solver();
IntVar[] VARS = VF.enumeratedArray("X", 2, 0, 2, solver);
Constraint CSTR = ICF.arithm(VARS[0], "+", VARS[1], "=", 2);
solver.post(CSTR, CSTR);
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 3);
solver.getSearchLoop().reset();
solver.unpost(CSTR);
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 3);
}
@Test(groups = "1s")
public void testEq() throws ContradictionException {
Solver solver = new Solver();
IntVar x = VariableFactory.enumerated("X", 1, 6, solver);
IntVar y = VariableFactory.enumerated("Y", 1, 6, solver);
solver.post(IntConstraintFactory.arithm(x, "=", y));
solver.propagate();
x.removeValue(4, Cause.Null);
solver.propagate();
Assert.assertFalse(y.contains(4));
}
@Test(groups = "10s")
public void compareVersionSpeedNew() {
int n = 14;
FiniteAutomaton auto = new FiniteAutomaton("(0|1|2)*(0|1)(0|1)(0|1)(0|1|2)*");
Solver solver = new Solver();
IntVar[] vars = new IntVar[n];
for (int i = 0; i < n; i++) {
vars[i] = VariableFactory.enumerated("x_" + i, 0, 2, solver);
}
solver.post(IntConstraintFactory.regular(vars, auto));
solver.set(IntStrategyFactory.lexico_LB(vars));
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 4371696);
}
@Test(groups = "1s")
public void compareVersionSpeedNew2() {
int n = 5;
FiniteAutomaton auto = new FiniteAutomaton("(0|<10>|<20>)*(0|<10>)");
Solver solver = new Solver();
IntVar[] vars = new IntVar[n];
for (int i = 0; i < n; i++) {
vars[i] = VariableFactory.enumerated("x_" + i, new int[] {0, 10, 20}, solver);
}
solver.post(IntConstraintFactory.regular(vars, auto));
solver.set(IntStrategyFactory.lexico_LB(vars));
Chatterbox.showSolutions(solver);
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 162);
}
@Test(groups = "1s", expectedExceptions = SolverException.class)
public void testNeg() {
Solver solver = new Solver();
IntVar[] CS = VF.enumeratedArray("CS", 4, -10, 10, solver);
solver.post(ICF.regular(CS, new FiniteAutomaton("<-9>1*")));
Chatterbox.showSolutions(solver);
solver.findAllSolutions();
final List<Solution> solutions = solver.getSolutionRecorder().getSolutions();
System.out.println(solutions);
Assert.assertEquals(1, solutions.size());
Assert.assertEquals(-9, (int) solutions.get(0).getIntVal(CS[0]));
Assert.assertEquals(1, (int) solutions.get(0).getIntVal(CS[1]));
Assert.assertEquals(1, (int) solutions.get(0).getIntVal(CS[2]));
Assert.assertEquals(-5, (int) solutions.get(0).getIntVal(CS[3]));
}
@Test(groups = "1s")
public void testregExp7() {
Solver solver = new Solver();
IntVar[] CS = VF.enumeratedArray("CS", 10, 0, 2, solver);
solver.post(ICF.regular(CS, new FiniteAutomaton("0*(1{2,4}0{0,2}0)*0*")));
Chatterbox.showSolutions(
solver,
() -> {
for (int i = 0; i < 10; i++) {
System.out.printf("%d", CS[i].getValue());
}
// System.out.printf("\n");
return "";
});
solver.set(ISF.lexico_LB(CS));
// Chatterbox.showDecisions(solver);
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 84);
}
@Test(groups = "1s")
public void ccostregular2() {
Solver solver = new Solver();
int n = 12;
IntVar[] vars = new IntVar[n];
for (int i = 0; i < n; i++) {
vars[i] = VariableFactory.enumerated("x_" + i, 0, 2, solver);
}
// different rules are formulated as patterns that must NOT be matched by x
List<String> forbiddenRegExps = new ArrayList<>();
// do not end with '00' if start with '11'
forbiddenRegExps.add("11(0|1|2)*00");
// at most three consecutive 0
forbiddenRegExps.add("(0|1|2)*0000(0|1|2)*");
// no pattern '112' at position 5
forbiddenRegExps.add("(0|1|2){4}112(0|1|2)*");
// pattern '12' after a 0 or a sequence of 0
forbiddenRegExps.add("(0|1|2)*02(0|1|2)*");
forbiddenRegExps.add("(0|1|2)*01(0|1)(0|1|2)*");
// at most three 2 on consecutive even positions
forbiddenRegExps.add("(0|1|2)((0|1|2)(0|1|2))*2(0|1|2)2(0|1|2)2(0|1|2)*");
// a unique automaton is built as the complement language composed of all the forbidden patterns
FiniteAutomaton auto = new FiniteAutomaton();
for (String reg : forbiddenRegExps) {
FiniteAutomaton a = new FiniteAutomaton(reg);
auto = auto.union(a);
auto.minimize();
}
auto = auto.complement();
auto.minimize();
Assert.assertEquals(auto.getNbStates(), 54);
solver.post(IntConstraintFactory.regular(vars, auto));
solver.set(IntStrategyFactory.lexico_LB(vars));
solver.findAllSolutions();
Assert.assertEquals(solver.getMeasures().getSolutionCount(), 25980);
}
public static void testOp(int n, int min, int max, int cMax, int seed, Operator operator) {
Random random = new Random(seed);
Solver s = new Solver();
IntVar[] vars = new IntVar[n];
int[] coeffs = new int[n];
for (int i = 0; i < vars.length; i++) {
vars[i] = VariableFactory.enumerated("v_" + i, min, max, s);
coeffs[i] = random.nextInt(cMax);
}
int constant = -random.nextInt(cMax);
IntVar sum = VariableFactory.bounded("scal", -99999999, 99999999, s);
Constraint[] cstrs =
new Constraint[] {
IntConstraintFactory.scalar(vars, coeffs, sum),
IntConstraintFactory.arithm(sum, operatorToString(operator), constant)
};
s.post(cstrs);
s.set(IntStrategyFactory.lexico_LB(vars));
s.findAllSolutions();
}
@Override
public boolean inject(ReconfigurationProblem rp) {
Collection<Node> nodes = constraint.getInvolvedNodes();
Solver solver = rp.getSolver();
PowerView pvServers =
(PowerView) rp.getSourceModel().getView(F4GConfigurationAdapter.VIEW_POWER_IDLES);
PowerView pvVMs =
(PowerView) rp.getSourceModel().getView(F4GConfigurationAdapter.VIEW_POWER_PER_VM);
for (Node node : nodes) {
IntVar powerIdle = VariableFactory.fixed(pvServers.getPower(node), solver);
IntVar powerperVM = VariableFactory.fixed(pvVMs.getPower(node), solver);
IntVar powerVMS = VariableFactory.bounded("powerVMS", 0, Integer.MAX_VALUE / 100, solver);
IntConstraintFactory.times(rp.getNbRunningVMs()[rp.getNode(node)], powerperVM, powerVMS);
solver.post(
IntConstraintFactory.arithm(
powerVMS, "+", powerIdle, "<=", constraint.getMaxServerPower()));
}
return true;
}
public void max(Solver solver, IntVar x, IntVar y, IntVar z) {
solver.post(IntConstraintFactory.maximum(z, x, y));
}
public static IntVar minimiserTemps(IntVar[][][] X, Probleme aResoudre, Solver solver) {
IntVar OBJ =
VF.enumerated("OBJ", 0, aResoudre.getHFermeture() - aResoudre.getHOuverture(), solver);
// On calcule le Min et Max pour chaque patient
IntVar[] MAX_Patient =
VariableFactory.enumeratedArray(
"MAX_Patient",
aResoudre.getnPatients(),
aResoudre.getHOuverture(),
aResoudre.getHFermeture(),
solver);
IntVar[] MIN_Patient =
VariableFactory.enumeratedArray(
"MIN_Patient",
aResoudre.getnPatients(),
aResoudre.getHOuverture(),
aResoudre.getHFermeture(),
solver);
for (int i = 0; i < aResoudre.getnPatients(); i++) {
// On calcule le Min et Max pour chaque groupe de soins du patient i
IntVar[] MAX_PatientI_Groupe =
VariableFactory.enumeratedArray(
"MAX_PatientI_Groupe",
aResoudre.getnPatients(),
aResoudre.getHOuverture(),
aResoudre.getHFermeture(),
solver);
IntVar[] MIN_PatientI_Groupe =
VariableFactory.enumeratedArray(
"MIN_PatientI_Groupe",
aResoudre.getnPatients(),
aResoudre.getHOuverture(),
aResoudre.getHFermeture(),
solver);
for (int j = 0; j < aResoudre.getnG_i()[i]; j++) {
solver.post(ICF.maximum(MAX_PatientI_Groupe[j], X[i][j]));
solver.post(ICF.minimum(MIN_PatientI_Groupe[j], X[i][j]));
}
solver.post(ICF.maximum(MAX_Patient[i], MAX_PatientI_Groupe));
solver.post(ICF.minimum(MIN_Patient[i], MIN_PatientI_Groupe));
}
// TODO : vérifier que c'est juste --> possible source de problème
for (int i = 0; i < MIN_Patient.length; i++) {
MIN_Patient[i] = VariableFactory.minus(MIN_Patient[i]);
}
// On calcule la somme des max et des min
IntVar SUM[] =
VF.enumeratedArray(
"SUM",
2,
aResoudre.getHOuverture() * aResoudre.getnPatients(),
aResoudre.getHFermeture() * aResoudre.getnPatients(),
solver);
solver.post(ICF.sum(MAX_Patient, SUM[0]));
solver.post(ICF.sum(MIN_Patient, SUM[1]));
solver.post(ICF.sum(SUM, OBJ));
return null;
}