Add Mul Add Mul x0 Pow x1 Add x1 x0 3 Mul Mul x6 exp Mul sqrt x2 log x1 Add pi 4 E 
Mul Mul Mul x6 exp Mul sqrt x2 log x1 Add pi 4 Add Pow x1 Add x1 x0 Mul x0 Mul Pow x1 Add Add x1 x0 -1 Mul x1 log x1 