bug238.m:022: Error: call to predicate [38;5;87m`solutions.unsorted_solutions'/2[39;49m with
bug238.m:022:   determinism `cc_multi' [38;5;203moccurs in a context which requires all[39;49m
bug238.m:022:   [38;5;203msolutions.[39;49m
bug238.m:022:   Unification of [38;5;87m`V_2'[39;49m and [38;5;87m`V_5'[39;49m [38;5;203mcan fail.[39;49m