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.

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{written file /tmp/tmpCDgZAv/naive_rev_eterms_shfr_nfg_resources_co.pl}
:- module(_1,[reverse/2],[assertions,predefres(res_steps),nativeprops,basicmodes,regtypes]).

:- true pred app(_1,Ys,_2)
         : ( list(_1,gnd), rt2(Ys), term(_2) )
        => ( list(_1,gnd), rt19(Ys), rt19(_2) ).

:- true pred app(_1,Ys,_2)
         : ( mshare([[_2]]), ground([_1,Ys]) )
        => ground([_1,Ys,_2]).

:- true pred app(_1,Ys,_2)
         : ( list(_1,gnd), rt2(Ys), term(_2) )
        => ( list(_1,gnd), rt19(Ys), rt19(_2) )
         + ( possibly_fails, not_covered ).

:- true pred app(_1,Ys,_2)
         : ( list(_1,gnd), rt2(Ys), term(_2) )
        => ( list(_1,gnd), rt19(Ys), rt19(_2), size(lb,_1,length(_1)), size(lb,Ys,length(Ys)), size(lb,_2,length(Ys)+length(_1)) )
         + cost(lb,steps,0).

:- true pred app(_1,Ys,_2)
         : ( list(_1,gnd), rt2(Ys), term(_2) )
        => ( list(_1,gnd), rt19(Ys), rt19(_2), size(ub,_1,length(_1)), size(ub,Ys,length(Ys)), size(ub,_2,length(Ys)+length(_1)) )
         + cost(ub,steps,length(_1)+1).

app([X|Xs],Ys,[X|Zs]) :-
        app(Xs,Ys,Zs).
app([],Ys,Ys).

:- entry reverse(A,B)
         : ground(A).

:- true pred reverse(A,B)
         : ( gnd(A), term(B) )
        => ( list(A,gnd), list(B,gnd) ).

:- true pred reverse(A,B)
         : ( mshare([[B]]), ground([A]) )
        => ground([A,B]).

:- true pred reverse(A,B)
         : ( gnd(A), term(B) )
        => ( list(A,gnd), list(B,gnd) )
         + ( possibly_fails, not_covered ).

:- true pred reverse(A,B)
         : ( gnd(A), term(B) )
        => ( list(A,gnd), list(B,gnd), size(lb,A,length(A)), size(lb,B,length(A)) )
         + cost(lb,steps,0).

:- true pred reverse(A,B)
         : ( gnd(A), term(B) )
        => ( list(A,gnd), list(B,gnd), size(ub,A,length(A)), size(ub,B,length(A)) )
         + cost(ub,steps,0.5*exp(length(A),2)+1.5*length(A)+1).

reverse([X|Xs],Ys) :-
        reverse(Xs,Zs),
        app(Zs,[X],Ys).
reverse([],[]).


:- regtype rt2/1.

rt2([A]) :-
        gnd(A).


:- regtype rt19/1.

rt19([A|B]) :-
        gnd(A),
        list(B,gnd).