%Error-UNSUPPORTED: t/t_sys_rand_seed.v:13:16: Unsupported: Seed on $random. Suggest use +verilator+seed+ runtime flag
   13 |       valuea = $random(10);
      |                ^~~~~~~
%Error-UNSUPPORTED: t/t_sys_rand_seed.v:14:16: Unsupported: Seed on $random. Suggest use +verilator+seed+ runtime flag
   14 |       valueb = $random(10);
      |                ^~~~~~~
%Error: Exiting due to
