Meaning of the annotations for the proof of each method:
- loop: the method seems to be part of a loop or recursion
- may_diverge: proved the existence of at least a diverging execution
- local_polyh: proved to terminate by using a local linear ranking function for the binary unfolding with polyhedra
- local_bds: proved to terminate by using local linear ranking functions for the binary unfolding with bounded difference shapes
- local_sct: proved to terminate via the size change termination principle with monotonicity constraints
- global_lex_aff_rnkfn: proved to terminate by using a global lexicographic affine ranking function
  * numerical: the ranking function uses numerical variables or fields
  * structural: the ranking function uses reference variables or fields

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

There is at least a diverging computation for these methods:
  none

Nothing is known about these methods:
  none

There are no warnings