:- module pl4_01.
:- pragma termination_info(pl4_01.append3((builtin.in), (builtin.in), (builtin.in), (builtin.out)), finite(0, [no, yes, yes, yes, no]), cannot_loop).
:- pragma termination_info(pl4_01.append3((builtin.out), (builtin.out), (builtin.out), (builtin.in)), finite(0, [no, no, no, no, yes]), cannot_loop).