long simulation and error "integer value too large"

From: Dhiraj Srivastava (dhirajks_at_gmail.com)
Date: Fri Apr 20 2018 - 23:24:23 CDT

Hi all
        I am trying to do a really long simulation on NAMD but its showing
following error.
how can I fix this problem?

thanks
Dhiraj

FATAL ERROR: integer value too large to represent as non-long integer
    while executing
"run 10000000000 "

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