Meaning of the annotations for the proof of each method:
- local_polyh: uses a local linear ranking function for the binary unfolding with polyhedra
- local_mono: uses a local linear ranking function for the binary unfolding with monotonicity constraints
- global_affrnkfn: uses a global affine ranking function with polyhedra
- numerical: the ranking function uses numerical variables or fields
- structural: the ranking function uses reference variables or fields
- loop: the method seems to be part of a loop or recursion

All calls to these methods terminate:
                                             public static Nats.Nats.succ(Nats.Nats):Nats.Nats
                                             public static Nats.Nats.zero():Nats.Nats
[loop,structural,local_polyh]                public static Nats.DivMinus.minus(Nats.Nats,Nats.Nats):Nats.Nats
[loop,structural,local_polyh]                public static Nats.DivMinus.div(Nats.Nats,Nats.Nats):Nats.Nats
                                             public Nats.Nats.():void
[loop,numerical,local_polyh]                 public Nats.Nats.(int):void
                                             public Nats.Nats.isZero():boolean
                                             public static Nats.DivMinus.main(java.lang.String[]):void
[loop,structural,local_polyh]                public Nats.Nats.copy():Nats.Nats

Some calls to these methods might not terminate:
  none
There are no warnings