Joint snv mix train error

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What steps will reproduce the problem?
1. after installation, when running 
"/BiO2/EwhaColonLung/Python-2.7.2/bin/jsm.py train joint_snv_mix_two", error as 
follow:
Traceback (most recent call last):
  File "/BiO2/EwhaColonLung/Python-2.7.2/bin/jsm.py", line 224, in <module>
    args.func(args)
  File "/BiO2/EwhaColonLung/Python-2.7.2/lib/python2.7/site-packages/joint_snv_mix/runners/train.py", line 61, in joint_snv_mix_two_train
    train(model, sample, args)
  File "/BiO2/EwhaColonLung/Python-2.7.2/lib/python2.7/site-packages/joint_snv_mix/runners/train.py", line 110, in train
    model.fit(sample, args.convergence_threshold, args.max_iters)
  File "joint_snv_mix.pyx", line 388, in joint_snv_mix.trainers.joint_snv_mix.JointSnvMixModel.fit (joint_snv_mix/trainers/joint_snv_mix.c:7567)
  File "joint_snv_mix.pyx", line 450, in joint_snv_mix.trainers.joint_snv_mix.JointSnvMixModelTrainer.train (joint_snv_mix/trainers/joint_snv_mix.c:8106)
  File "joint_snv_mix.pyx", line 486, in joint_snv_mix.trainers.joint_snv_mix.JointSnvMixModelTrainer._check_convergence (joint_snv_mix/trainers/joint_snv_mix.c:8413)
Exception: Lower bound decreased exiting.




What is the expected output? What do you see instead?
 prameter.txt

What version of the product are you using? On what operating system?

JointSNVMix-0.7.4 python 2.7

operating system 
Linux gteam.kobic.re.kr 2.6.18-194.11.3.el5 #1 SMP Mon Aug 30 16:19:16 EDT 2010 
x86_64 x86_64 x86_64 GNU/Linux
Please provide any additional information below.

Original issue reported on code.google.com by psj...@gmail.com on 10 Jan 2012 at 4:05