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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.fail;
33  
34  import org.junit.Test;
35  import org.sat4j.core.VecInt;
36  import org.sat4j.specs.ContradictionException;
37  import org.sat4j.specs.ISolver;
38  import org.sat4j.specs.IVecInt;
39  import org.sat4j.specs.TimeoutException;
40  
41  public class BugSat14 {
42  
43      @Test
44      public void testSatCallAfterExpireTimeout() throws ContradictionException {
45          ISolver solver = SolverFactory.newDefault();
46          IVecInt clause = new VecInt();
47          for (int i = 4; i < 1000; i++) {
48              clause.push(1).push(-2).push(3).push(i);
49              solver.addClause(clause);
50              clause.clear();
51          }
52          for (int i = 4; i < 10000; i++) {
53              clause.push(-i);
54          }
55          solver.addClause(clause);
56          clause.clear();
57          clause.push(10).push(-20);
58          solver.addClause(clause);
59          clause.clear();
60          clause.push(-10).push(20);
61          solver.addClause(clause);
62          clause.clear();
63          clause.push(10).push(20);
64          solver.addClause(clause);
65          clause.clear();
66          clause.push(-10).push(-20);
67          solver.addClause(clause);
68          clause.clear();
69          solver.setTimeoutMs(10);
70          try {
71              boolean result = solver.isSatisfiable(true);
72          } catch (TimeoutException e) {
73              System.out.println("Exception launched");
74          }
75          solver.expireTimeout();
76          solver.setTimeout(300);
77          try {
78              boolean result = solver.isSatisfiable(true);
79          } catch (TimeoutException e) {
80              fail();
81          }
82      }
83  }