Examples with OptimizationHandler org.logicng.handlers.OptimizationHandler used on opensource projects

Example 1 with OptimizationHandler

use of org.logicng.handlers.OptimizationHandler in project LogicNG by logic-ng.

the class SmusComputationTest method testCancellationPoints.

@Test
public void testCancellationPoints() throws IOException {
    final List<Formula> formulas = DimacsReader.readCNF("src/test/resources/sat/unsat/bf0432-007.cnf", this.f);
    for (int numOptimizationStarts = 1; numOptimizationStarts < 5; numOptimizationStarts++) {
        for (int numSatHandlerStarts = 1; numSatHandlerStarts < 10; numSatHandlerStarts++) {
            final OptimizationHandler handler = new BoundedOptimizationHandler(numSatHandlerStarts, numOptimizationStarts);
            testHandler(handler, formulas, true);
        }
    }
}

Example 2 with OptimizationHandler

use of org.logicng.handlers.OptimizationHandler in project LogicNG by logic-ng.

the class SmusComputationTest method testHSolverCancelled.

@Test
public void testHSolverCancelled() throws ParserException {
    final OptimizationHandler handler = new BoundedOptimizationHandler(-1, 3);
    final List<Formula> formulas = Arrays.asList(this.f.parse("a"), this.f.parse("~a"), this.f.parse("c"));
    testHandler(handler, formulas, true);
}

Example 3 with OptimizationHandler

use of org.logicng.handlers.OptimizationHandler in project LogicNG by logic-ng.

the class SmusComputationTest method testMinimumHittingSetCancelled.

@Test
public void testMinimumHittingSetCancelled() throws ParserException {
    final OptimizationHandler handler = new BoundedOptimizationHandler(-1, 0);
    final List<Formula> formulas = Arrays.asList(this.f.parse("a"), this.f.parse("~a"));
    testHandler(handler, formulas, true);
}

Example 4 with OptimizationHandler

use of org.logicng.handlers.OptimizationHandler in project LogicNG by logic-ng.

the class OptimizationFunctionTest method testCancellationPoints.

@LongRunningTag
@ParameterizedTest
@MethodSource("solvers")
public void testCancellationPoints(final SATSolver solver) throws IOException {
    final FormulaFactory f = new FormulaFactory();
    final SortedSet<Variable> selVars = new TreeSet<>();
    final List<Formula> clauses = DimacsReader.readCNF("src/test/resources/sat/c499_gr_rcs_w6.shuffled.cnf", f);
    final List<Formula> formulas = new ArrayList<>();
    for (final Formula clause : clauses) {
        final Variable selVar = f.variable("@SEL_" + selVars.size());
        selVars.add(selVar);
        formulas.add(f.equivalence(selVar, clause));
    }
    for (int numSatHandlerStarts = 1; numSatHandlerStarts < 5; numSatHandlerStarts++) {
        solver.reset();
        solver.add(formulas);
        final OptimizationHandler handler = new BoundedOptimizationHandler(numSatHandlerStarts, -1);
        final OptimizationFunction optimizationFunction = OptimizationFunction.builder().handler(handler).literals(selVars).maximize().build();
        final Assignment result = solver.execute(optimizationFunction);
        assertThat(handler.aborted()).isTrue();
        assertThat(result).isNull();
    }
}

Example 5 with OptimizationHandler

use of org.logicng.handlers.OptimizationHandler in project LogicNG by logic-ng.

the class PrimeCompilerTest method testCancellationPoints.

@Test
public void testCancellationPoints() throws IOException, ParserException {
    final Formula formula = this.f.parse(Files.readAllLines(Paths.get("src/test/resources/formulas/simplify_formulas.txt")).get(0));
    final List<Pair<PrimeCompiler, PrimeResult.CoverageType>> compilers = Arrays.asList(new Pair<>(PrimeCompiler.getWithMaximization(), PrimeResult.CoverageType.IMPLICANTS_COMPLETE), new Pair<>(PrimeCompiler.getWithMaximization(), PrimeResult.CoverageType.IMPLICATES_COMPLETE), new Pair<>(PrimeCompiler.getWithMinimization(), PrimeResult.CoverageType.IMPLICANTS_COMPLETE), new Pair<>(PrimeCompiler.getWithMinimization(), PrimeResult.CoverageType.IMPLICATES_COMPLETE));
    for (final Pair<PrimeCompiler, PrimeResult.CoverageType> compiler : compilers) {
        for (int numOptimizationStarts = 1; numOptimizationStarts < 5; numOptimizationStarts++) {
            for (int numSatHandlerStarts = 1; numSatHandlerStarts < 10; numSatHandlerStarts++) {
                final OptimizationHandler handler = new BoundedOptimizationHandler(numSatHandlerStarts, numOptimizationStarts);
                testHandler(handler, formula, compiler.first(), compiler.second(), true);
            }
        }
    }
}