Add Mul Pow Mul Add pi -2.40299796172238 -4 x0 -0.0133894021871665 x3 
Mul -0.0133894021871665 Mul Pow Mul Add pi -2.40299796172238 -4 Add x0 -1 Mul Mul Add pi -2.40299796172238 -4 log Mul Add pi -2.40299796172238 -4 