%Error: t/t_flag_errorlimit_bad.v:9: Duplicate declaration of signal: u1
        t/t_flag_errorlimit_bad.v:8: ... Location of original declaration
%Error: t/t_flag_errorlimit_bad.v:10: Duplicate declaration of signal: u1
        t/t_flag_errorlimit_bad.v:8: ... Location of original declaration
%Error: Exiting due to