Certification Problem

Input (TPDB Runtime_Complexity_Innermost_Rewriting/SK90/2.50)

The rewrite relation of the following TRS is considered.

a(b(x)) b(b(a(x))) (1)
The evaluation strategy is innermost.

Property / Task

Determine bounds on the runtime complexity.

Answer / Result

An upperbound for the complexity is O(n).

Proof (by AProVE @ termCOMP 2023)

1 Bounds

The given TRS is match-(raise)-bounded by 1. This is shown by the following automaton.