1 /******************************************************************************* 2 * SAT4J: a SATisfiability library for Java Copyright (C) 2004, 2012 Artois University and CNRS 3 * 4 * All rights reserved. This program and the accompanying materials 5 * are made available under the terms of the Eclipse Public License v1.0 6 * which accompanies this distribution, and is available at 7 * http://www.eclipse.org/legal/epl-v10.html 8 * 9 * Alternatively, the contents of this file may be used under the terms of 10 * either the GNU Lesser General Public License Version 2.1 or later (the 11 * "LGPL"), in which case the provisions of the LGPL are applicable instead 12 * of those above. If you wish to allow use of your version of this file only 13 * under the terms of the LGPL, and not to allow others to use your version of 14 * this file under the terms of the EPL, indicate your decision by deleting 15 * the provisions above and replace them with the notice and other provisions 16 * required by the LGPL. If you do not delete the provisions above, a recipient 17 * may use your version of this file under the terms of the EPL or the LGPL. 18 * 19 * Based on the original MiniSat specification from: 20 * 21 * An extensible SAT solver. Niklas Een and Niklas Sorensson. Proceedings of the 22 * Sixth International Conference on Theory and Applications of Satisfiability 23 * Testing, LNCS 2919, pp 502-518, 2003. 24 * 25 * See www.minisat.se for the original solver in C++. 26 * 27 * Contributors: 28 * CRIL - initial API and implementation 29 *******************************************************************************/ 30 package org.sat4j.pb; 31 32 import java.math.BigInteger; 33 34 import org.junit.Before; 35 import org.junit.Test; 36 import org.sat4j.core.Vec; 37 import org.sat4j.core.VecInt; 38 import org.sat4j.specs.ContradictionException; 39 import org.sat4j.specs.ISolver; 40 import org.sat4j.specs.IVecInt; 41 import org.sat4j.specs.TimeoutException; 42 import org.sat4j.tools.ModelIterator; 43 44 public class TestGlobalTimeoutForOptimalModelEnumeration { 45 46 private ISolver solver; 47 48 @Before 49 public void setUp() throws ContradictionException { 50 PseudoOptDecorator pbsolver = new PseudoOptDecorator( 51 SolverFactory.newDefault()); 52 IVecInt clause = new VecInt(); 53 pbsolver.newVar(1000); 54 for (int i = 1; i <= 1000; i++) { 55 clause.push(-i); 56 } 57 pbsolver.addClause(clause); 58 Vec<BigInteger> weights = new Vec<BigInteger>(); 59 for (int i = 1; i <= 1000; i++) { 60 weights.push(BigInteger.valueOf(5)); 61 } 62 pbsolver.setObjectiveFunction(new ObjectiveFunction(clause, weights)); 63 this.solver = new ModelIterator(pbsolver); 64 } 65 66 @Test(expected = TimeoutException.class, timeout = 3000) 67 public void testTimeoutOnSeconds() throws TimeoutException { 68 this.solver.setTimeout(2); 69 while (this.solver.isSatisfiable()) { 70 this.solver.model(); // needed to 71 // discard 72 // that 73 // solution 74 } 75 } 76 77 @Test(expected = TimeoutException.class, timeout = 5000) 78 public void testTimeoutOnConflicts() throws TimeoutException { 79 this.solver.setTimeoutOnConflicts(1000); 80 while (this.solver.isSatisfiable()) { 81 this.solver.model(); // needed to discard that solution 82 } 83 } 84 }