cbenchsuite does not stop while the max-runs is exceeded

[georgekang]

The cbenchsuite never stops except it receives SIGINT.
For example, when I execute the cbenchsuite as follows
cbenchsuite -p "sysctl.monitor-meminfo" --max-runs 10 -v
cbenchsuite nerver stops even though the "Max remaining: Runs" is negative.

Here is the message through cbenchsuite:

INFO     : Execution: 14 uuid:'4c87b43a-cfdc-4164-98b0-2346975aba3f'
NOTICE   : Monitor thread failed to set priority -15. Operating with unchanged priority.
INFO     :      Minimum runtime not reached, continuing
INFO     : Execution: 15 uuid:'0650b965-1172-4995-adb8-614cda307e99'
NOTICE   : Monitor thread failed to set priority -15. Operating with unchanged priority.
INFO     :      Minimum runtime not reached, continuing
INFO     : Execution: 16 uuid:'a55c2e59-e3a3-41bf-9b43-1111ce646a33'
NOTICE   : Monitor thread failed to set priority -15. Operating with unchanged priority.
INFO     : Received signal to shutdown. After the current execution cbenchsuite will be stopped
INFO     :      Minimum runtime not reached, continuing
INFO     :  Uninstalling plugins
    ERROR    : Failed executing all commandline arguments
--------------------------------------------------------------------------------
Group  1/1
Group Run  17   Time  0:00      Max remaining: Runs  -6   Time  0:30
    sysctl.monitor-meminfo 
DONE