YES

This TRS is terminating using the restricteddeltasimple interpretation 
a(delta7) =  + 0 + 0*delta7
g(delta6, X3) =  + 1*X3 + 0 + 1*X3*delta6 + 0*delta6
b(delta5) =  + 3 + 2*delta5
f(delta4, X2) =  + 1*X2 + 0 + 0*X2*delta4 + 2*delta4
g_tau_1(delta6) =  + 1(delta6/(1 + 1 * delta6))
f_tau_1(delta4) =  + 1(delta4/(1 + 0 * delta4))

Time: 0.151866 seconds
SUCCESS

Statistics:
Number of monomials: 75
Last formula building started for bound 3
Last SAT solving started for bound 3