YES

This TRS is terminating using the additive interpretation 
false(delta6) =  + 3
activate(delta5, X5) =  + 1*X5 + 3
f(delta4, X4) =  + 1*X4 + 2
true(delta3) =  + 0
n__f(delta2, X3) =  + 1*X3 + 0
c(delta1) =  + 0
if(delta0, X2, X1, X0) =  + 1*X0 + 1*X1 + 1*X2 + 1
activate_tau_1(delta5) = 
f_tau_1(delta4) = 
n__f_tau_1(delta2) = 
if_tau_1(delta0) = 
if_tau_2(delta0) = 
if_tau_3(delta0) = 

Time: 0.003006 seconds
SUCCESS

Statistics:
Number of monomials: 24
Last formula building started for bound 3
Last SAT solving started for bound 3