By default, SLIC will produce begin and end error messages like this.
>>>> BeginEvent <1> >>>> EndEvent <1>
To turn off these messages, the following two lines should be added to your SLIC macro.
/log/PrimaryGenerationAction/setLogLevel 0 /log/EventAction/setLogLevel 0
The first command turns off "BeginEvent" and the second disables the "EndEvent".