Troubleshooting

• Be sure to have set a sufficient print_depth (also called max_depth).

  In ECLiPSe this can be done by means of comand: set_flag(print_depth,100).

• There are different initializations necessary, depending on whether one uses ECLiPSe or SICStus Prolog (see header of file pref.pl.).

  This is needed for using the verbose_mode flag.