Examples with Formula kodkod.ast.Formula used on opensource projects

Example 21 with Formula

use of kodkod.ast.Formula in project org.alloytools.alloy by AlloyTools.

the class RingElection method main.

/**
 * Usage: java examples.RingElection [# processes] [# times]
 */
public static void main(String[] args) {
    if (args.length < 2)
        usage();
    try {
        final RingElection model = new RingElection();
        final Solver solver = new Solver();
        solver.options().setSolver(SATFactory.MiniSat);
        final int p = Integer.parseInt(args[0]);
        final int t = Integer.parseInt(args[1]);
        final Formula checkAtMostOneElected = model.checkAtMostOneElected();
        final Bounds boundspt = model.bounds(p, t);
        System.out.println("*****check AtMostOneElected for " + p + " Process, " + t + " Time*****");
        Solution sol1 = solver.solve(checkAtMostOneElected, boundspt);
        System.out.println(sol1);
    // // run looplessPath for 13 Time, 3 Process
    // final Formula runLooplessPath =
    // model.declsAndFacts();//.and(model.looplessPath());
    // final Bounds bounds313 = model.bounds(p, t);
    // System.out.println("*****run looplessPath for 13 Time, 3
    // Process*****");
    // System.out.println(runLooplessPath);
    // System.out.println(bounds313);
    // Solution sol2 = solver.solve(runLooplessPath, bounds313);
    // System.out.println(sol2);
    } catch (NumberFormatException nfe) {
        usage();
    }
}

Example 22 with Formula

use of kodkod.ast.Formula in project org.alloytools.alloy by AlloyTools.

the class RingElection method looplessPath.

/**
 * Returns the looplessPath predicate
 *
 * @return
 *
 *         <pre>
 * pred looplessPath () {no disj t, t': Time | toSend.t = toSend.t'}
 *         </pre>
 */
public Formula looplessPath() {
    final Variable t1 = Variable.unary("t");
    final Variable t2 = Variable.unary("t'");
    // all t, t': Time | some t&t' || !(toSend.t = toSend.t')
    final Formula f1 = t1.intersection(t2).some().or(toSend.join(t1).eq(toSend.join(t2)).not());
    return f1.forAll(t1.oneOf(Time).and(t2.oneOf(Time)));
}

Example 23 with Formula

use of kodkod.ast.Formula in project org.alloytools.alloy by AlloyTools.

the class ToyFilesystem method main.

/**
 * Usage: java examples.alloy.ToyFilesystem
 */
public static void main(String[] args) {
    final ToyFilesystem toy = new ToyFilesystem();
    final Formula f = toy.constraints();
    System.out.println(PrettyPrinter.print(f, 2));
    final Bounds b = toy.bounds();
    final Solver solver = new Solver();
    solver.options().setSolver(SATFactory.MiniSat);
    final Solution s = solver.solve(f, b);
    System.out.println(s);
}

Example 24 with Formula

use of kodkod.ast.Formula in project org.alloytools.alloy by AlloyTools.

the class Trees method statement5.

/**
 * Returns statement 5.
 *
 * @return
 *
 *         <pre>
 * pred Statement5() {
 * Acyclic() and
 * all u,v: V | (u->v) not in E implies Cyclic(E + (u->v) + (v->u))
 * }
 *         </pre>
 */
public final Formula statement5() {
    final Variable u = Variable.unary("u");
    final Variable v = Variable.unary("v");
    final Formula f0 = u.product(v).in(E).not().implies(cyclic(E.union(u.product(v).union(v.product(u)))));
    final Formula f1 = f0.forAll(u.oneOf(V).and(v.oneOf(V)));
    return acyclic().and(f1);
}

Example 25 with Formula

use of kodkod.ast.Formula in project org.alloytools.alloy by AlloyTools.

the class Trees method declsAndFacts.

/**
 * Returns the declarations and facts of the model.
 *
 * @return
 *
 *         <pre>
 * sig V { E: set V }
 * fact UndirectedGraph { E = ~E }
 * fact NonEmpty { some V }
 *         </pre>
 */
public final Formula declsAndFacts() {
    final Formula f0 = E.in(V.product(V));
    final Formula f1 = E.eq(E.transpose());
    final Formula f2 = V.some();
    return f0.and(f1).and(f2);
}