ulrich@p0:~/SO$ /opt/gupu/yap-6.3/bin/yap -f
YAP 6.3.4 (x86_64-linux): Mon Jan 26 00:38:17 CET 2015
 ?- write(xx),nl.
%
%
% YAP OOOPS: tried to access illegal address 0x7f28d67a5c10!!!!.
%
%
%
% PC: meta-call
%   Continuation: prolog:catch/3 at clause 1 
Active Choice-Points:
$catch(_1048439,$history:fail,_1048404)
yap_flag(readline,true)
$history:save_history_line(write(xx),nl)
repeat 
$catch(_131086,user:$Error(_131086),_1048524)
repeat 

   Exiting ....