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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.util.Collection;
33  
34  import org.sat4j.AbstractLauncher;
35  import org.sat4j.ExitCode;
36  import org.sat4j.pb.reader.OPBEclipseReader2007;
37  import org.sat4j.pb.tools.XplainPB;
38  import org.sat4j.reader.Reader;
39  import org.sat4j.specs.IConstr;
40  import org.sat4j.specs.ISolver;
41  import org.sat4j.specs.TimeoutException;
42  
43  public class LanceurPseudo2007Eclipse extends LanceurPseudo2007 {
44  
45      XplainPB quickxplain;
46  
47      @Override
48      protected ISolver configureSolver(String[] args) {
49          IPBSolver theSolver;
50          if (args.length > 1) {
51              theSolver = SolverFactory.instance().createSolverByName(args[0]);
52          } else {
53              theSolver = SolverFactory.newDefault();
54          }
55          this.quickxplain = new XplainPB(theSolver);
56          theSolver = new PseudoOptDecorator(this.quickxplain);
57          if (args.length == 3) {
58              theSolver.setTimeout(Integer.valueOf(args[1]));
59          }
60          this.out.println(theSolver.toString(COMMENT_PREFIX));
61          return theSolver;
62      }
63  
64      /**
65  	 * 
66  	 */
67      private static final long serialVersionUID = 1L;
68  
69      public LanceurPseudo2007Eclipse() {
70      }
71  
72      @Override
73      protected Reader createReader(ISolver theSolver, String problemname) {
74          return new OPBEclipseReader2007((IPBSolver) theSolver);
75      }
76  
77      /**
78       * Lance le prouveur sur un fichier Dimacs
79       * 
80       * @param args
81       *            doit contenir le nom d'un fichier Dimacs, eventuellement
82       *            compress?.
83       */
84      public static void main(final String[] args) {
85          final AbstractLauncher lanceur = new LanceurPseudo2007Eclipse();
86          if (args.length == 0 || args.length > 2) {
87              lanceur.usage();
88              return;
89          }
90          lanceur.run(args);
91          System.exit(lanceur.getExitCode().value());
92      }
93  
94      @Override
95      protected void displayAnswer() {
96          super.displayAnswer();
97          ExitCode exitCode = getExitCode();
98  
99          if (exitCode == ExitCode.UNSATISFIABLE) {
100             try {
101 
102                 Collection<IConstr> explanation = this.quickxplain.explain();
103                 log("Explanation for inconsistency: " + explanation);
104             } catch (TimeoutException e) {
105                 log("Timeout ! Need more time to complete");
106             }
107         }
108 
109     }
110 
111 }