bug415.m:046: In clause for `ip_chunk_2(in(list.list((I =< ground))), in,
bug415.m:046:   in(list.list((I =< ground))), in, out(list.list((I =<
bug415.m:046:   ground))))':
bug415.m:046:   mode error: argument 5 became too instantiated.
bug415.m:046:   Final instantiatedness of `HeadVar__5' was
bug415.m:046:     bound(
bug415.m:046:       []
bug415.m:046:     ;
bug415.m:046:       '[|]'(
bug415.m:046:         ground,
bug415.m:046:         bound(
bug415.m:046:           []
bug415.m:046:         ;
bug415.m:046:           '[|]'(
bug415.m:046:             ( I =< ground ),
bug415.m:046:             internal $merge_inst #1
bug415.m:046:             which expands to
bug415.m:046:               bound([] ; '[|]'(( I =< ground ),
bug415.m:046:               internal $merge_inst #1))
bug415.m:046:           )
bug415.m:046:         )
bug415.m:046:       )
bug415.m:046:     ),
bug415.m:046:   expected final instantiatedness was
bug415.m:046:     named inst list.list(
bug415.m:046:       ( I =< ground )
bug415.m:046:     )
bug415.m:046:     which expands to
bug415.m:046:       named inst list.list_skel(
bug415.m:046:         ( I =< ground )
bug415.m:046:       )
bug415.m:046:       which expands to
bug415.m:046:         bound(
bug415.m:046:           []
bug415.m:046:         ;
bug415.m:046:           '[|]'(
bug415.m:046:             ( I =< ground ),
bug415.m:046:             named inst list.list_skel(
bug415.m:046:               ( I =< ground )
bug415.m:046:             )
bug415.m:046:           )
bug415.m:046:         ).