If you are asking what the message means.
A timing check verifies the timing performance of a design by making sure that critical events occur within given time limits. A timing check performs the following steps:Originally posted in cdnusers.org by douge
1. Determines the elapsed time between two events.
2. Compares the elapsed time to a specified minimum or maximum time limit.
3. Reports a timing violation if the elapsed time occurs outside the specified time window.
If you are asking how to turn the message off:
I think (but not sure) You can add +nonotifier +no_tchk_msg to your switches to turn the message off. Please let me know if it works