%Error: t/t_flag_unroll_limit_gen.v:13:3: Unrolling generate loop took too long; probably this is an infinite loop, otherwise set '--unroll-limit' above 4
                                        : ... note: In instance 't'
   13 |   for (genvar i = 0; i < 5; ++i) begin
      |   ^~~
        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
%Error: Exiting due to