Workflow history not getting deleted from work flow history Task list

Question

Hi All,

I have a site where workflow is enabled and workflow history is maintained in workflow history list , my problem is that these records are not getting deleted after 60 days.

I have checked with timer jobs and WorkflowAuto clean was running sucessfully every day ,

I have tired with below options also

              Restarted auto clean job

              Implemented the below command

               Stsadm –o set property –pn job-workflow-autoclean –pv “daily at 15:00:00 -url Http://server

 Can anybody suggest me as how to go about the issue .

Thanks
Srujan.N