Pow Add x0 -4 sech Mul x0 -0.995054753686730 
Mul Pow Add x0 -4 Add sech Mul x0 -0.995054753686730 -1 Add sech Mul x0 -0.995054753686730 Mul Mul Add x0 -4 log Add x0 -4 Mul Mul tanh Mul x0 -0.995054753686730 Mul -1 sech Mul x0 -0.995054753686730 -0.995054753686730 