%Error-UNSUPPORTED: t/t_unbounded_bad.v:9:11: Unsupported/illegal unbounded ('$') in this context.
                                            : ... In instance t
    9 |       if ($) $stop;
      |           ^
                    ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest
%Warning-WIDTHTRUNC: t/t_unbounded_bad.v:9:7: Logical operator IF expects 1 bit on the If, but If's UNBOUNDED generates 32 bits.
                                            : ... In instance t
    9 |       if ($) $stop;
      |       ^~
                     ... Use "/* verilator lint_off WIDTHTRUNC */" and lint_on around source to disable this message.
%Error: Exiting due to