Pow Pow x0 Add x0 sech x0 -1.99932884959832 
Mul Pow Pow x0 Add x0 sech x0 -2.99932884959832 Mul -1.99932884959832 Mul Pow x0 Add Add x0 sech x0 -1 Add Add x0 sech x0 Mul Mul x0 log x0 Add 1 Mul tanh x0 Mul -1 sech x0 