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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 java.math.BigInteger;
33  
34  import org.junit.Test;
35  import org.sat4j.core.Vec;
36  import org.sat4j.core.VecInt;
37  import org.sat4j.minisat.constraints.cnf.Lits;
38  import org.sat4j.minisat.core.ILits;
39  import org.sat4j.pb.constraints.pb.Pseudos;
40  import org.sat4j.specs.ContradictionException;
41  import org.sat4j.specs.IVec;
42  import org.sat4j.specs.IVecInt;
43  
44  public class BugSAT32 {
45  
46      @Test
47      public void testClassicalCase() throws ContradictionException {
48          IVecInt literals = VecInt.EMPTY;
49          IVec<BigInteger> coefs = new Vec<BigInteger>();
50          ILits voc = new Lits();
51          Pseudos.niceParameters(literals, coefs, true, BigInteger.ZERO, voc);
52          Pseudos.niceParameters(literals, coefs, false, BigInteger.ZERO, voc);
53          Pseudos.niceParameters(literals, coefs, true, BigInteger.ONE.negate(),
54                  voc);
55          Pseudos.niceParameters(literals, coefs, false, BigInteger.ONE.negate(),
56                  voc);
57      }
58  
59      @Test
60      public void testCompetitionCase() throws ContradictionException {
61          int[] literals = {};
62          BigInteger[] coefs = {};
63          Pseudos.niceParametersForCompetition(literals, coefs, true,
64                  BigInteger.ZERO);
65          Pseudos.niceParametersForCompetition(literals, coefs, false,
66                  BigInteger.ZERO);
67          Pseudos.niceParametersForCompetition(literals, coefs, true,
68                  BigInteger.ONE.negate());
69          Pseudos.niceParametersForCompetition(literals, coefs, false,
70                  BigInteger.ONE.negate());
71      }
72  
73  }