If you’re using Specman GUI to run simulations you must have encountered this rather annoying feature before - When running several simulations during the same session, specman doesn’t clear the log file by default so what you get in the end is a concatenation of all log files which makes it kind of - how to put it nicely -  useless.

Ok, now try adding this to your e testbench (the top most e file)

extend global {
setup_test() is also {
specman(set log off);
specman(set log specman.elog);
};
};

Voila!