Ciao Preprocessor (integrated Alpha version)
 | This is an alpha distribution, meant only for testing. Please do let us 
 | know at ciaopp-bugclip.dia.fi.upm.es any problems you may have.

{loaded in 3328.208 msec.}
{preprocessed for plai in 0.0 msec.}
{analyzed by plai using det with local-control off in 8.0 msec.}
{written file /tmp/tmpH4mDMh/pl4.0.1_det_co.pl}
:- module(_1,[append3/4],[assertions]).

:- true pred append(_1,L,_2)
         : ( native_props:mshare([[_2]]), ground([_1,L]), gnd(_1), gnd(L), term(_2) )
        => ( ground([_1,L,_2]), rt10(_1), gnd(L), gnd(_2) )
         + ( is_det, mut_exclusive ).

:- true pred append(_1,L,_2)
         : ( native_props:mshare([[_2]]), var(_2), ground([_1,L]), gnd(_1), gnd(L), term(_2) )
        => ( ground([_1,L,_2]), rt4(_1), gnd(L), gnd(_2) )
         + ( is_det, mut_exclusive ).

append([],L,L).
append([H|L1],L2,[H|L3]) :-
        append(L1,L2,L3).

:- entry append3(A,B,C,D)
         : ( ground(A), ground(B), ground(C) ).

:- true pred append3(A,B,C,D)
         : ( native_props:mshare([[D]]), ground([A,B,C]), gnd(A), gnd(B), gnd(C), term(D) )
        => ( ground([A,B,C,D]), rt4(A), gnd(B), gnd(C), gnd(D) )
         + ( is_det, mut_exclusive ).

append3(A,B,C,D) :-
        append(A,B,E),
        append(E,C,D).


:- regtype rt5/1.

rt5([]).
rt5([A|B]) :-
        gnd(A),
        rt5(B).


:- regtype rt4/1.

rt4([]).
rt4([A|B]) :-
        gnd(A),
        rt5(B).


:- regtype rt11/1.

rt11([]).
rt11([A|B]) :-
        gnd(A),
        rt11(B).


:- regtype rt10/1.

rt10([]).
rt10([A|B]) :-
        gnd(A),
        rt11(B).