Termination Proof Script

Consider the TRS R consisting of the rewrite rule
1:    f(f(f(f(j,a),b),c),d)  → f(f(a,b),f(f(a,d),c))
There are 4 dependency pairs:
2:    F(f(f(f(j,a),b),c),d)  → F(f(a,b),f(f(a,d),c))
3:    F(f(f(f(j,a),b),c),d)  → F(a,b)
4:    F(f(f(f(j,a),b),c),d)  → F(f(a,d),c)
5:    F(f(f(f(j,a),b),c),d)  → F(a,d)
Consider the SCC {2-5}. The constraints could not be solved.
Tyrolean Termination Tool  (0.02 seconds)   ---  May 3, 2006