%Error: t/t_constraint_pure_nonabs_bad.v:8:21: Illegal to have 'pure constraint' in non-abstract class (IEEE 1800-2023 18.5.2)
                                             : ... note: In instance 't'
    8 |     pure constraint raintBad;   
      |                     ^~~~~~~~
        ... See the manual at https://verilator.org/verilator_doc.html?v=latest for more assistance.
%Error: Exiting due to