In reply to bhupeshpaliwal:
In reply to chr_sue:
I did declare tID. Also I am using same tID to set report file id.
protected string tID;
..
creator.set_report_id_file(tID, log);
As a first remark. You are writing only data to the log-file with the UVM_VERBOSITY = UVM_HIGH.
The default verbosity is UVM_MEDIUM. Do you simulate with the verbosity UVM_HIGH?