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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.minisat.core;
31  
32  import org.junit.Test;
33  import org.sat4j.core.VecInt;
34  import org.sat4j.minisat.SolverFactory;
35  import org.sat4j.opt.MaxSatDecorator;
36  import org.sat4j.specs.ContradictionException;
37  import org.sat4j.specs.ISolver;
38  import org.sat4j.specs.TimeoutException;
39  import org.sat4j.tools.ModelIterator;
40  import org.sat4j.tools.OptToSatAdapter;
41  
42  public class BugFatih {
43  
44      @Test
45      public void testBugReport() throws ContradictionException, TimeoutException {
46          ISolver theSolver = SolverFactory.newDefault();
47          ModelIterator solver = new ModelIterator(new OptToSatAdapter(
48                  new MaxSatDecorator(SolverFactory.newDefault())));
49          System.out.println("Taille de voc : " + solver.nVars());
50          solver.newVar(3);
51          solver.setExpectedNumberOfClauses(3);
52          solver.addClause(new VecInt(new int[] { 1, 2 }));
53          solver.addClause(new VecInt(new int[] { 1, 3 }));
54          solver.addClause(new VecInt(new int[] { 2, 3 }));
55          System.out.println("Taille de voc : " + solver.nVars());
56          if (solver.isSatisfiable()) {
57              System.out.println("Taille du modèle : " + solver.model().length);
58              for (int i = 1; i <= solver.model().length; i++) {
59                  System.out.print(solver.model(i) + " ");
60              }
61              System.out.println();
62          }
63  
64          solver.reset();
65          System.out.println("Taille de voc : " + solver.nVars());
66          solver.newVar(2);
67          solver.setExpectedNumberOfClauses(2);
68          solver.addClause(new VecInt(new int[] { 1, 2 }));
69          solver.addClause(new VecInt(new int[] { 2 }));
70          System.out.println("Taille de voc : " + solver.nVars());
71          if (solver.isSatisfiable()) {
72              System.out.println("Taille du modèle : " + solver.model().length);
73              for (int i = 1; i <= solver.model().length; i++) {
74                  System.out.print(solver.model(i) + " ");
75              }
76              System.out.println();
77          }
78          System.out.println("The End.");
79  
80      }
81  }