Creo ModelCHECK > config_init_options > DIR_REPORT_U
  
DIR_REPORT_U
<directory path>
Specifies the path on UNIX to a directory in which Creo ModelCHECK, including ModelUPDATE, reports are to be written. On a UNIX system, you can specify the /tmp directory to write the report files to, so that the directory is cleaned each time the machine is rebooted.
If this option is not set, the DIR_REPORT configuration option is used.