Sphinx recognizer throws an exception

[schnelle]

When starting a recognition, sphinx reports the following error

30042 [Thread-7            ] INFO  o.server.recog.RTPRecogChannel (   147) [] Starting recognition...
30291 [Thread-9            ] INFO  r.recog.sphinx.SphinxRecEngine (   287) [] starting recognition on recognizer engine #2 (Recognizer: recognizer2 State: READY)...
30803 [Thread-9            ] ERROR                     System.err (   749) [] Exception in thread "Thread-9" java.lang.ArrayIndexOutOfBoundsException: 13
30803 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.acoustic.tiedstate.tiedmixture.PrunableMixtureComponent.updateScore(PrunableMixtureComponent.java:88)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.acoustic.tiedstate.tiedmixture.MixtureComponentSet.updateTopScores(MixtureComponentSet.java:123)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.acoustic.tiedstate.tiedmixture.MixtureComponentSet.updateTopScores(MixtureComponentSet.java:155)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.acoustic.tiedstate.tiedmixture.SetBasedGaussianMixture.calculateScore(SetBasedGaussianMixture.java:38)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.acoustic.tiedstate.ScoreCachingSenone.getScore(ScoreCachingSenone.java:40)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.acoustic.tiedstate.SenoneHMMState.getScore(SenoneHMMState.java:84)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.linguist.flat.HMMStateState.getScore(HMMStateState.java:84)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.search.Token.calculateScore(Token.java:171)
30804 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.scorer.SimpleAcousticScorer.doScoring(SimpleAcousticScorer.java:176)
30805 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.scorer.ThreadedAcousticScorer.doScoring(ThreadedAcousticScorer.java:197)
30805 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.scorer.SimpleAcousticScorer.calculateScoresForData(SimpleAcousticScorer.java:136)
30805 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.scorer.SimpleAcousticScorer.calculateScores(SimpleAcousticScorer.java:99)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.search.SimpleBreadthFirstSearchManager.scoreTokens(SimpleBreadthFirstSearchManager.java:355)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.search.SimpleBreadthFirstSearchManager.recognize(SimpleBreadthFirstSearchManager.java:285)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.search.SimpleBreadthFirstSearchManager.recognize(SimpleBreadthFirstSearchManager.java:218)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.decoder.Decoder.decode(Decoder.java:65)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.recognizer.Recognizer.recognize(Recognizer.java:106)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at edu.cmu.sphinx.recognizer.Recognizer.recognize(Recognizer.java:122)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at org.speechforge.cairo.server.recog.sphinx.SphinxRecEngine.waitForResult(SphinxRecEngine.java:289)
30806 [Thread-9            ] ERROR                     System.err (   749) [] 	at org.speechforge.cairo.server.recog.sphinx.SphinxRecEngine.access$2(SphinxRecEngine.java:260)
30808 [Thread-9            ] ERROR                     System.err (   749) [] 	at org.speechforge.cairo.server.recog.sphinx.SphinxRecEngine$RecogThread.run(SphinxRecEngine.java:350)