If I'm not mistaken, CPU quotas are created by system administrators so that no one of their user accounts can be used to consume more than a certain number of hours of CPU time. Usually the limits are set high enough that an interactive session will never bump into the limit, but low enough that a rogue script will be terminated before it consumes so much CPU time that all other users suffer.

It appears that the script you're running is consuming more CPU time than your system administrator deems prudent for the smooth running of the system, and your process is being sent a terminate signal explaining that you've exceeded your CPU limit (your quota).

Your first course of action is to re-examine your algorithms to see if there is any way you can reduce nested loops and other time-expensive code.

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