Stept through UVM code

Hi,

I'm trying to step through the SV UVM library code, but I just can't manage. I tried the built in library in IUS and also a version downloaded from Accelera. Both setups have -linedebug on the command line. When trying with the built in one, it says it was not instrumented for line debugging. The Accellera one lets me put breakpoints, the simulator stops there, but it doesn't show the execution point in the source browser (it just mentions in the console that it stopped at the specific line).

Is there something I'm missing?

Thanks and best regards,

Tudor