Certification Problem

Input (TPDB TRS_Outermost/Strategy_outermost_added_08/ttt2)

The rewrite relation of the following TRS is considered.

+(1,x) +(+(0,1),x) (1)
+(0,x) x (2)
The evaluation strategy is outermost

Property / Task

Prove or disprove termination.

Answer / Result

No.

Proof (by AProVE @ termCOMP 2023)

1 Loop

The following loop proves nontermination.

t0 = +(+(0,1),x)
+(1,x)
+(+(0,1),x)
= t2
where t2 = t0