Pow x1 Pow Pow x3 Pow x3 x0 x3 
Mul Pow x1 Add Pow Pow x3 Pow x3 x0 x3 -1 Mul Mul x1 log x1 Mul Pow Pow x3 Pow x3 x0 Add x3 -1 Mul x3 Mul Pow x3 Add Pow x3 x0 -1 Mul Mul x3 log x3 Mul Pow x3 Add x0 -1 Mul x3 log x3 