Command: vcs -full64 -sverilog -ntb_opts uvm-1.2 +vcs+loopreport+1000 -debug_acc+all \
-debug_region+cell+encrypt -f files.f -l com.log -fsdb +define+FSDB
                         Chronologic VCS (TM)
       Version O-2018.09-SP2_Full64 -- Thu Apr  3 13:13:31 2025
               Copyright (c) 1991-2018 by Synopsys Inc.
                         ALL RIGHTS RESERVED

This program is proprietary and confidential information of Synopsys Inc.
and may be used and disclosed only as authorized in a license agreement
controlling such use and disclosure.

The design hasn't changed and need not be recompiled. 
If you really want to, delete file simv.daidir/.vcs.timestamp and
run VCS again.