%Error: t/t_constraint_soft_randc_bad.v:10:28: Randc variables not allowed in 'constraint soft' (IEEE 1800-2023 18.5.13.1)
   10 |    constraint c_bad { soft rc > 4; }   
      |                            ^~
        t/t_constraint_soft_randc_bad.v:10:23: ... Location of restricting expression
   10 |    constraint c_bad { soft rc > 4; }   
      |                       ^~~~
%Error: Exiting due to