%Error: t/t_mod_interface_array3.v:24: Unsupported: Multidimensional cells/interfaces.
   a_if iface [2:0][1:0];
                   ^
%Error: t/t_mod_interface_array3.v:26: Unsupported: Multidimensional cells/interfaces.
   sub i_sub[2:0][1:0] (.s(str));
                 ^
%Error: Exiting due to