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| package org.sat4j.tools; |
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| import org.sat4j.core.VecInt; |
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| import org.sat4j.specs.ContradictionException; |
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| import org.sat4j.specs.ISolver; |
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| import org.sat4j.specs.IVecInt; |
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| import org.sat4j.specs.TimeoutException; |
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| public class SolutionCounter extends SolverDecorator { |
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| private static final long serialVersionUID = 1L; |
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| public SolutionCounter(ISolver solver) {
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| super(solver);
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| } |
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| public long countSolutions() throws TimeoutException {
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| long nbsols = 0;
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| boolean trivialfalsity = false;
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| while (!trivialfalsity && isSatisfiable()) {
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| nbsols++;
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| int[] last = model();
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| IVecInt clause = new VecInt(last.length);
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| for (int i = 0; i < last.length; i++) {
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| clause.push(-last[i]);
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| } |
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| try {
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| addClause(clause);
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| } catch (ContradictionException e) { |
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| trivialfalsity = true;
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| } |
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| } |
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| return nbsols;
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| } |
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| } |