default_ho_inst_2.m:033: In clause for `main(di, uo)':
default_ho_inst_2.m:033:   mode mismatch in disjunction.
default_ho_inst_2.m:033:   The variable `F' has the following instantiation
default_ho_inst_2.m:033:   states.
default_ho_inst_2.m:031:     In this branch, `F' has instantiatedness
default_ho_inst_2.m:031:       unique(
default_ho_inst_2.m:031:         foo(
default_ho_inst_2.m:031:           /* unique */ (func(
default_ho_inst_2.m:031:             in
default_ho_inst_2.m:031:           ) = out is semidet)
default_ho_inst_2.m:031:         )
default_ho_inst_2.m:031:       ).
default_ho_inst_2.m:033:     In this branch, `F' is ground.
For more information, recompile with `-E'.