Examples with CompiledProgram at.ac.tuwien.kr.alpha.core.programs.CompiledProgram used on opensource projects

Example 21 with CompiledProgram

use of at.ac.tuwien.kr.alpha.core.programs.CompiledProgram in project Alpha by alpha-asp.

the class AlphaHeuristicTestAssumptions method setUp.

@BeforeEach
public void setUp() {
    String testProgram = "" + "b1." + "b2." + "{b3}." + "{b4}." + "h :- b1, b2, not b3, not b4.";
    CompiledProgram internalProgram = parseAndPreprocess.apply(testProgram);
    atomStore = new AtomStoreImpl();
    grounder = new NaiveGrounder(internalProgram, atomStore, true);
    assignment = new TrailAssignment(atomStore);
    choiceManager = new TestableChoiceManager(assignment, new NaiveNoGoodStore(assignment));
}

Example 22 with CompiledProgram

use of at.ac.tuwien.kr.alpha.core.programs.CompiledProgram in project Alpha by alpha-asp.

the class StratifiedEvaluationTest method testPartnerUnitsProblemTopologicalOrder.

/**
 * Tests an encoding associated with the partner units problem (PUP) that computes a topological order to be used by
 * domain-specific heuristics. The entire program can be solved by stratified evaluation.
 */
@Test
public void testPartnerUnitsProblemTopologicalOrder() throws IOException {
    ASPCore2Program prg = parser.parse(StratifiedEvaluationTest.class.getResourceAsStream("/partial-eval/pup_topological_order.asp"));
    CompiledProgram evaluated = new StratifiedEvaluation().apply(AnalyzedProgram.analyzeNormalProgram(normalizer.apply(prg)));
    assertTrue(evaluated.getRules().isEmpty(), "Not all rules eliminated by stratified evaluation");
    assertEquals(57, evaluated.getFacts().size());
}

Example 23 with CompiledProgram

use of at.ac.tuwien.kr.alpha.core.programs.CompiledProgram in project Alpha by alpha-asp.

the class StratifiedEvaluationTest method testNegatedLiteralInRecursiveRule.

/**
 * Verifies correct handling of negated basic literals in StratifiedEvaluation.
 * For details, see comments in test program
 *
 * @throws IOException
 */
@Test
public void testNegatedLiteralInRecursiveRule() throws IOException {
    // @formatter:off
    String expectedAnswerSet = "basefact1(1), basefact2(1), max_value(10), min_value(1), " + "basefact1(9), basefact2(9), base(1), base(9), " + "inc_value(1), inc_value(2), inc_value(2), inc_value(3), " + "inc_value(4), inc_value(5), inc_value(6), inc_value(7), " + "inc_value(8)";
    // @formatter:on
    ASPCore2Program prog = Programs.fromInputStream(StratifiedEvaluationTest.class.getResourceAsStream("/partial-eval/recursive_w_negated_condition.asp"), new HashMap<>());
    // Run stratified evaluation and solve
    CompiledProgram inputStratEval = new StratifiedEvaluation().apply(AnalyzedProgram.analyzeNormalProgram(normalizer.apply(prog)));
    Set<AnswerSet> asStrat = solveCompiledProg.apply(inputStratEval);
    TestUtils.assertAnswerSetsEqual(expectedAnswerSet, asStrat);
    // Solve without stratified evaluation
    CompiledProgram inputNoStratEval = InternalProgram.fromNormalProgram(normalizer.apply(prog));
    Set<AnswerSet> as = solveCompiledProg.apply(inputNoStratEval);
    TestUtils.assertAnswerSetsEqual(expectedAnswerSet, as);
}

Example 24 with CompiledProgram

use of at.ac.tuwien.kr.alpha.core.programs.CompiledProgram in project Alpha by alpha-asp.

the class StratifiedEvaluationTest method testEqualityWithVarTerms.

@Test
public void testEqualityWithVarTerms() {
    String aspStr = "a(1). a(2). a(3). b(X) :- a(X), X = 1. c(X) :- a(X), X = 2. d(X) :- X = 3, a(X).";
    CompiledProgram evaluated = parseAndEvaluate.apply(aspStr);
    Set<AnswerSet> answerSets = solveCompiledProg.apply(evaluated);
    TestUtils.assertAnswerSetsEqual("a(1), a(2), a(3), b(1), c(2), d(3)", answerSets);
}

Example 25 with CompiledProgram

use of at.ac.tuwien.kr.alpha.core.programs.CompiledProgram in project Alpha by alpha-asp.

the class NaiveGrounderTest method groundRuleAlreadyGround.

/**
 * Asserts that a ground rule whose positive body is not satisfied by the empty assignment
 * is grounded immediately.
 */
@Test
public void groundRuleAlreadyGround() {
    ASPCore2Program program = PROGRAM_PARSER.parse("a :- not b. " + "b :- not a. " + "c :- b.");
    NormalProgram normal = NORMALIZE_TRANSFORM.apply(program);
    CompiledProgram prog = new StratifiedEvaluation().apply(AnalyzedProgram.analyzeNormalProgram(normal));
    AtomStore atomStore = new AtomStoreImpl();
    Grounder grounder = GrounderFactory.getInstance("naive", prog, atomStore, true);
    Map<Integer, NoGood> noGoods = grounder.getNoGoods(new TrailAssignment(atomStore));
    int litCNeg = Literals.atomToLiteral(atomStore.get(PROGRAM_PART_PARSER.parseBasicAtom("c")), false);
    int litB = Literals.atomToLiteral(atomStore.get(PROGRAM_PART_PARSER.parseBasicAtom("b")));
    assertExistsNoGoodContaining(noGoods.values(), litCNeg);
    assertExistsNoGoodContaining(noGoods.values(), litB);
}