Availability:
:- use_module(library(clpfd)).
[semidet]fdset_parts(?Set,
?Min, ?Max, ?Rest)\/ Rest,
where Min..Max is a non-empty interval (see fdset_interval/3)
and Rest is another FD set (possibly empty).
If Max is sup, then Rest is the empty FD set. Otherwise, if Rest is non-empty, all elements of Rest are greater than Max+1.
This predicate should only be called with either Set or all other arguments being ground.