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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 static org.junit.Assert.assertFalse;
33  import static org.junit.Assert.assertTrue;
34  
35  import java.io.FileNotFoundException;
36  import java.io.IOException;
37  
38  import org.junit.Test;
39  import org.sat4j.pb.reader.OPBEclipseReader2007;
40  import org.sat4j.reader.ParseFormatException;
41  import org.sat4j.reader.Reader;
42  import org.sat4j.specs.ContradictionException;
43  import org.sat4j.specs.TimeoutException;
44  
45  /**
46   * Test case to prevent a bug occurring with some Eclipse test cases:
47   * https://bugs.eclipse.org/bugs/show_bug.cgi?id=247567
48   * 
49   * @author daniel
50   * 
51   */
52  public class TestEclipseBug247567 {
53      private static final String PREFIX = System.getProperty("test.pbprefix");
54  
55      @Test
56      public void testReserveVarsButUseLess() throws ContradictionException,
57              TimeoutException, FileNotFoundException, ParseFormatException,
58              IOException {
59          IPBSolver solver = SolverFactory.newEclipseP2();
60          Reader reader = new OPBEclipseReader2007(solver);
61          reader.parseInstance(PREFIX + "bug247567.opb");
62          assertTrue(solver.isSatisfiable());
63          assertTrue(solver.model(1));
64          assertTrue(solver.model(2));
65          assertTrue(solver.model(3));
66          assertFalse(solver.model(4));
67          assertFalse(solver.model(5));
68          assertFalse(solver.model(6));
69      }
70  }