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.core;
31
32 import java.io.PrintWriter;
33
34 import org.sat4j.minisat.core.SolverStats;
35
36 public class PBSolverStats extends SolverStats {
37
38 /**
39 *
40 */
41 private static final long serialVersionUID = 1L;
42
43 public long numberOfReductions;
44
45 public long numberOfLearnedConstraintsReduced;
46
47 public long numberOfResolution;
48
49 public long numberOfCP;
50
51 @Override
52 public void reset() {
53 super.reset();
54 this.numberOfReductions = 0;
55 this.numberOfLearnedConstraintsReduced = 0;
56 this.numberOfResolution = 0;
57 this.numberOfCP = 0;
58 }
59
60 @Override
61 public void printStat(PrintWriter out, String prefix) {
62 super.printStat(out, prefix);
63 out.println(prefix
64 + "number of reductions to clauses (during analyze)\t: "
65 + this.numberOfReductions);
66 out.println(prefix
67 + "number of learned constraints concerned by reduction\t: "
68 + this.numberOfLearnedConstraintsReduced);
69 out.println(prefix + "number of learning phase by resolution\t: "
70 + this.numberOfResolution);
71 out.println(prefix + "number of learning phase by cutting planes\t: "
72 + this.numberOfCP);
73 }
74
75 }