Examples with Universe kodkod.instance.Universe used on opensource projects

Example 71 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class TranslatorTest method testFlattening.

public final void testFlattening() {
    final List<String> atoms = new ArrayList<String>(9);
    atoms.add("-1");
    atoms.add("0");
    atoms.add("1");
    atoms.add("null");
    for (int i = 0; i < 5; i++) {
        atoms.add("m" + i);
    }
    final Universe u = new Universe(atoms);
    final TupleFactory t = u.factory();
    final Relation[] m = new Relation[5];
    for (int i = 0; i < 5; i++) {
        m[i] = Relation.unary("m" + i);
    }
    final Relation univ = Relation.unary("univ"), none = Relation.unary("none"), iden = Relation.binary("inden"), mutant = Relation.unary("mutant"), inc = Relation.binary("inc"), add = Relation.ternary("add"), i0 = Relation.unary("i0"), zero = Relation.unary("0"), one = Relation.unary("1"), ints = Relation.unary("int");
    final Bounds b = new Bounds(u);
    b.boundExactly(univ, t.allOf(1));
    b.boundExactly(none, t.noneOf(1));
    TupleSet idenSet = t.noneOf(2);
    for (String atom : atoms) {
        idenSet.add(t.tuple(atom, atom));
    }
    b.boundExactly(iden, idenSet);
    b.bound(mutant, t.range(t.tuple("m0"), t.tuple("m4")));
    for (int i = 0; i < 5; i++) {
        b.boundExactly(m[i], t.setOf("m" + i));
    }
    b.bound(i0, t.range(t.tuple("-1"), t.tuple("1")));
    b.boundExactly(zero, t.setOf(t.tuple("0")));
    b.boundExactly(one, t.setOf(t.tuple("1")));
    b.boundExactly(ints, t.allOf(1));
    b.boundExactly(inc, t.setOf(t.tuple("-1", "0"), t.tuple("0", "1")));
    // [1, 1, -1], [1, -1, 0], [1, 0, 1], [-1, 1, 0], [-1, -1, 1],
    // [-1, 0, -1], [0, 1, 1], [0, -1, -1], [0, 0, 0]]
    b.boundExactly(add, t.setOf(t.tuple("1", "1", "-1"), t.tuple("1", "-1", "0"), t.tuple("1", "0", "1"), t.tuple("-1", "1", "0"), t.tuple("-1", "-1", "1"), t.tuple("-1", "0", "-1"), t.tuple("0", "1", "1"), t.tuple("0", "-1", "-1"), t.tuple("0", "0", "0")));
    /*
         * ((one i0 && one mutant) && !((if (i0 in (0 . ^~inc)) then ((add . 0) . i0)
         * else i0) = (if !((if (mutant in m4) then (if (i0 in 0) then 1 else 0) else
         * (if (mutant in m3) then (if ((i0 = 0) || (i0 in (0 . ^~inc))) then 1 else 0)
         * else (if (mutant in m2) then (if (i0 in (0 . ^inc)) then 1 else 0) else (if
         * (mutant in m1) then (if ((i0 = 0) || (i0 in (0 . ^inc))) then 1 else 0) else
         * (if (mutant in m0) then (if !(i0 in 0) then 1 else 0) else (if (i0 in (0 .
         * ^~inc)) then 1 else 0)))))) in 0) then ((add . 0) . i0) else i0)))
         */
    final Formula[] cm = new Formula[5];
    for (int i = 0; i < 5; i++) {
        cm[i] = mutant.in(m[i]);
    }
    // (i0 in (0 . ^~inc))
    final Formula fs0 = i0.in(zero.join(inc.transpose().closure()));
    // (i0 in (0 . ^inc))
    final Formula fs1 = i0.in(zero.join(inc.closure()));
    // (i0 = 0)
    final Formula fs2 = i0.eq(zero);
    final Expression em0 = cm[0].thenElse(i0.in(zero).not().thenElse(one, zero), fs0.thenElse(one, zero));
    final Expression em1 = cm[1].thenElse((fs2.or(fs1)).thenElse(one, zero), em0);
    final Expression em2 = cm[2].thenElse(fs1.thenElse(one, zero), em1);
    final Expression em3 = cm[3].thenElse(fs2.or(fs0).thenElse(one, zero), em2);
    final Expression em4 = cm[4].thenElse(i0.in(zero).thenElse(one, zero), em3);
    final Expression es1 = add.join(zero).join(i0);
    final Expression expr2 = em4.in(zero).not().thenElse(es1, i0);
    final Expression expr1 = fs0.thenElse(es1, i0);
    final Formula f = i0.one().and(mutant.one()).and(expr1.eq(expr2).not());
    final Instance instance = solver.solve(f, b).instance();
    assertNotNull(instance);
// System.out.println(instance);
}

Example 72 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class EnumerationTest method testTrivial.

public final void testTrivial() {
    final Relation r = Relation.unary("r");
    final Universe u = new Universe(Arrays.asList("a", "b", "c"));
    final TupleFactory f = u.factory();
    final Bounds b = new Bounds(u);
    b.bound(r, f.setOf("a"), f.allOf(1));
    final Formula someR = r.some();
    Iterator<Solution> sol = solver.solveAll(someR, b);
    // has a trivial instance, followed by 2 non-trivial instances
    assertEquals(Solution.Outcome.TRIVIALLY_SATISFIABLE, sol.next().outcome());
    assertEquals(Solution.Outcome.SATISFIABLE, sol.next().outcome());
    assertEquals(Solution.Outcome.SATISFIABLE, sol.next().outcome());
    assertEquals(Solution.Outcome.UNSATISFIABLE, sol.next().outcome());
    assertFalse(sol.hasNext());
}

Example 73 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class BugTests method testFelix_11262007.

public final void testFelix_11262007() {
    Relation x6 = Relation.unary("R2");
    List<String> atomlist = Arrays.asList("X", "Y", "Z");
    Universe universe = new Universe(atomlist);
    TupleFactory factory = universe.factory();
    Bounds bounds = new Bounds(universe);
    bounds.bound(x6, factory.allOf(1));
    final Variable x32 = Variable.unary("a");
    final Decls x31 = x32.oneOf(x6);
    final Variable x36 = Variable.unary("b");
    final Decls x35 = x36.oneOf(x32.join(x6.product(x6)));
    final Formula x29 = x36.some().forSome(x35).forSome(x31);
    Solver solver = new Solver();
    solver.options().setSolver(SATFactory.DefaultSAT4J);
    solver.options().setBitwidth(4);
    solver.options().setIntEncoding(Options.IntEncoding.TWOSCOMPLEMENT);
    solver.options().setSymmetryBreaking(20);
    solver.options().setSkolemDepth(0);
    final Set<Decl> decls = new LinkedHashSet<Decl>();
    solver.options().setReporter(new AbstractReporter() {

        @Override
        public void skolemizing(Decl decl, Relation skolem, List<Decl> predecl) {
            decls.add(decl);
        }
    });
    Solution sol = solver.solve(x29, bounds);
    assertEquals(2, decls.size());
    assertTrue(decls.contains(x31));
    assertTrue(decls.contains(x35));
    assertNotNull(sol.instance());
}

Example 74 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class BugTests method testFelix_10182006.

public final void testFelix_10182006() {
    // (some x: one { y: one SIG | true } | true)
    Relation sig = Relation.unary("SIG");
    final Variable x = Variable.unary("x");
    final Variable y = Variable.unary("y");
    final Expression e0 = Formula.TRUE.comprehension(y.oneOf(sig));
    final Formula f0 = Formula.TRUE.forSome(x.oneOf(e0));
    final Universe u = new Universe(Arrays.asList("a0"));
    final Bounds bounds = new Bounds(u);
    bounds.bound(sig, u.factory().allOf(1));
    final Solution s = solver.solve(f0, bounds);
    assertEquals(Solution.Outcome.SATISFIABLE, s.outcome());
}

Example 75 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class BugTests method doTestAleks_03102013.

private final void doTestAleks_03102013() {
    Relation r = Relation.unary("R");
    Relation s = Relation.binary("f");
    Variable v = Variable.unary("e");
    Decl decl = v.oneOf(r);
    Expression shared = v.join(s);
    Formula expr = (shared.difference(shared)).one().forAll(decl);
    Formula fin = expr.and(expr.not());
    List<Object> atomlist = new LinkedList<Object>();
    atomlist.add("R$0");
    atomlist.add("R$1");
    atomlist.add("R$2");
    Universe universe = new Universe(atomlist);
    TupleFactory factory = universe.factory();
    Bounds bounds = new Bounds(universe);
    bounds.bound(r, factory.allOf(1));
    bounds.bound(s, factory.allOf(2));
    Solver solver = new Solver();
    solver.options().setSolver(SATFactory.DefaultSAT4J);
    solver.options().setBitwidth(4);
    solver.options().setSkolemDepth(0);
    solver.options().setLogTranslation(0);
    Solution sol = solver.solve(fin, bounds);
    assertNull(sol.instance());
}