multimode_missing_impure.m:029: Error: predicate `test1'/1 is impure. It must
multimode_missing_impure.m:029:   either be declared impure, or promised pure.
multimode_missing_impure.m:038: Error: predicate `test2'/2 is impure. It must
multimode_missing_impure.m:038:   either be declared impure, or promised pure.