nextlevel=xbt_dict_new();
VERB1("Create a dict (%p)",nextlevel);
xbt_dict_set_ext(thislevel, thiskey, thislen, nextlevel, &_free_dict);
nextlevel=xbt_dict_new();
VERB1("Create a dict (%p)",nextlevel);
xbt_dict_set_ext(thislevel, thiskey, thislen, nextlevel, &_free_dict);