%Error: t/t_constraint_implication_else_bad.v:15:32: syntax error, unexpected else
   15 |     (a == 0) -> { b == 4'h1; } else { b == 4'h2; }
      |                                ^~~~
        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
%Error: Exiting due to