use of choco.kernel.model.variables.integer.IntegerVariable in project abstools by abstools.
the class ChocoSolver method getSolutions.
/*
* Return ALL solutions of the feature model
*/
public Set<Map<String, Integer>> getSolutions() {
Set<Map<String, Integer>> solutions = new HashSet<>();
// int i=0;
while (solveAgain()) {
Map<String, Integer> sol = new HashMap<>();
Iterator<IntegerVariable> it = cpmodel.getIntVarIterator();
while (it.hasNext()) {
IntegerVariable var = it.next();
sol.put(var.getName(), solver.getVar(var).getVal());
}
// System.out.println(i++ + " sol: " + sol);
solutions.add(sol);
}
return solutions;
}
use of choco.kernel.model.variables.integer.IntegerVariable in project abstools by abstools.
the class ChocoSolver method addBoolVar.
public void addBoolVar(String name) {
IntegerVariable v = Choco.makeBooleanVar(name);
vars.put(name, v);
defaultvals.put(name, 0);
if (absmodel.debug)
absmodel.println(" adding Bool var '" + name + "' (default -> False)");
// m.addVariable(v); // not needed - if variable is not constrained in
// any way, it should not be considered when solving.
}
use of choco.kernel.model.variables.integer.IntegerVariable in project abstools by abstools.
the class ChocoSolverExperiment method main.
@SuppressWarnings("unused")
public static void main(final String[] args) throws Exception {
CPModel m = new CPModel();
boolean verbose = false;
if (!verbose)
ChocoLogging.setVerbosity(Verbosity.OFF);
// m.addVariable(i1);
IntegerVariable i1 = Choco.makeIntVar("i1", -10, 100);
// m.addVariable(i2);
IntegerVariable i2 = Choco.makeIntVar("i2", -10, 100);
// m.addVariable(i3);
IntegerVariable i3 = Choco.makeIntVar("i3", -10, 100);
// m.addVariable(i4);
IntegerVariable i4 = Choco.makeIntVar("i4", -10, 100);
// m.addVariable(b1);
IntegerVariable b1 = Choco.makeBooleanVar("b1");
// m.addVariable(b2);
IntegerVariable b2 = Choco.makeBooleanVar("b2");
// m.addVariable(b3);
IntegerVariable b3 = Choco.makeBooleanVar("b3");
// m.addVariable(b4);
IntegerVariable b4 = Choco.makeBooleanVar("b4");
// m.addVariable(b5);
IntegerVariable b5 = Choco.makeBooleanVar("b5");
m.addConstraint(// Choco.and( Choco.lt(i1, i2) , Choco.lt(i2, 7) )
Choco.or(Choco.eq(i1, -3), Choco.eq(i1, 5)));
// Build the solver
CPSolver s = new CPSolver();
if (verbose)
System.out.println("####" + s.getConfiguration().stringPropertyNames());
// print the problem
if (verbose)
System.out.println(m.pretty());
// Read the model
s.read(m);
// Solve the model
// s.solve();
// s.setObjective(s.getVar(i1))
// s.solve(); //
Boolean solved = s.maximize(s.getVar(i1), true);
if (solved) {
System.out.println("i1: " + s.getVar(i1).getVal());
// System.out.println("i2: "+s.getVar(i2).getVal());
} else {
System.out.println("no sol...");
}
try {
// s.getVar(b1).setVal(1);
// // s.getVar(b2).setVal(0);
// // s.getVar(b3).setVal(1);
// System.out.println("$$$ check sol: "+s.checkSolution()+" $$$");
// System.out.println("$$$ b1: "+s.getVar(b1).isInstantiated()+" $$$");
// System.out.println("$$$ b2: "+s.getVar(b2).isInstantiated()+" $$$");
} catch (Exception e1) {
// Catch-all
System.err.println("$$$ Failed to check solution... $$$");
// e1.printStackTrace();
}
if (verbose)
System.out.println(s.pretty());
}
use of choco.kernel.model.variables.integer.IntegerVariable in project abstools by abstools.
the class ChocoSolverExperiment method othermain.
public static void othermain(final String[] args) throws Exception {
// Constant declaration
// Order of the magic square
int n = 3;
// Magic sum
int magicSum = n * (n * n + 1) / 2;
// Build the model
CPModel m = new CPModel();
// Creation of an array of variables
IntegerVariable[][] var = new IntegerVariable[n][n];
// For each variable, we define its name and the boundaries of its domain.
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
var[i][j] = Choco.makeIntVar("var_" + i + "_" + j, 1, n * n);
// Associate the variable to the model.
m.addVariable(var[i][j]);
}
}
// All cells of the matrix must be different
for (int i = 0; i < n * n; i++) {
for (int j = i + 1; j < n * n; j++) {
Constraint c = (Choco.neq(var[i / n][i % n], var[j / n][j % n]));
m.addConstraint(c);
}
}
// All rows must be equal to the magic sum
for (int i = 0; i < n; i++) {
m.addConstraint(Choco.eq(Choco.sum(var[i]), magicSum));
}
IntegerVariable[][] varCol = new IntegerVariable[n][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
// Copy of var in the column order
varCol[i][j] = var[j][i];
}
// Each column?s sum is equal to the magic sum
m.addConstraint(Choco.eq(Choco.sum(varCol[i]), magicSum));
}
IntegerVariable[] varDiag1 = new IntegerVariable[n];
IntegerVariable[] varDiag2 = new IntegerVariable[n];
for (int i = 0; i < n; i++) {
// Copy of var in varDiag1
varDiag1[i] = var[i][i];
// Copy of var in varDiag2
varDiag2[i] = var[(n - 1) - i][i];
}
// Every diagonal?s sum has to be equal to the magic sum
m.addConstraint(Choco.eq(Choco.sum(varDiag1), magicSum));
m.addConstraint(Choco.eq(Choco.sum(varDiag2), magicSum));
// Build the solver
CPSolver s = new CPSolver();
// print the problem
System.out.println(m.pretty());
// Read the model
s.read(m);
// Solve the model
s.solve();
// Print the solution
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
System.out.print(MessageFormat.format("{0} ", s.getVar(var[i][j]).getVal()));
}
System.out.println();
}
}
use of choco.kernel.model.variables.integer.IntegerVariable in project abstools by abstools.
the class ChocoSolver method addIntVar.
/**
* add int variable
*
* @param name
* - name of the variable to be added
* @param from
* - lowerlimit of the domain of the variable
* @param to
* - upper limit of the domain of the variable
*/
public void addIntVar(String name, int from, int to) {
IntegerVariable v = Choco.makeIntVar(name, from, to);
// addConstraint(Choco.geq(v,from)); // needed to include the variable
// in the constraints to be solved.
vars.put(name, v);
defaultvals.put(name, from);
if (absmodel.debug)
absmodel.println(" adding Int var '" + name + "' (default -> " + from + ")");
// needed to include the variable in the constraints
cpmodel.addVariable(v);
// to be solved.
}
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