12.690 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.032 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.034 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (pow x 4.0) (pow y 4.0))
0.035 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.036 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.038 * * [simplify]: iteration  2 :  30  enodes  (cost  7 )
0.042 * * [simplify]: iteration  3 :  74  enodes  (cost  7 )
0.058 * * [simplify]: iteration  4 :  195  enodes  (cost  7 )
0.107 * * [simplify]: iteration  5 :  660  enodes  (cost  7 )
0.389 * * [simplify]: iteration  6 :  3057  enodes  (cost  7 )
1.925 * * [simplify]: iteration  done :  5000  enodes  (cost  7 )
1.925 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
1.926 * * [progress]: iteration 1 / 4
1.926 * * * [progress]: picking best candidate
1.928 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
1.928 * * * [progress]: localizing error
1.934 * * * [progress]: generating rewritten candidates
1.934 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.952 * * * [progress]: generating series expansions
1.952 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.953 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0
1.953 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y
1.953 * [taylor]: Taking taylor expansion of (pow x 4) in y
1.953 * [taylor]: Taking taylor expansion of x in y
1.953 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.953 * [taylor]: Taking taylor expansion of y in y
1.953 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
1.954 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.954 * [taylor]: Taking taylor expansion of x in x
1.954 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.954 * [taylor]: Taking taylor expansion of y in x
1.954 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
1.954 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.954 * [taylor]: Taking taylor expansion of x in x
1.954 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.954 * [taylor]: Taking taylor expansion of y in x
1.954 * [taylor]: Taking taylor expansion of (- (pow y 4)) in y
1.954 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.954 * [taylor]: Taking taylor expansion of y in y
1.955 * [taylor]: Taking taylor expansion of 0 in y
1.957 * [taylor]: Taking taylor expansion of 0 in y
1.958 * [taylor]: Taking taylor expansion of 0 in y
1.959 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
1.959 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
1.959 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
1.959 * [taylor]: Taking taylor expansion of (pow x 4) in y
1.959 * [taylor]: Taking taylor expansion of x in y
1.959 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.959 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.959 * [taylor]: Taking taylor expansion of y in y
1.960 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.960 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.960 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.960 * [taylor]: Taking taylor expansion of x in x
1.960 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.960 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.960 * [taylor]: Taking taylor expansion of y in x
1.961 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.961 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.961 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.961 * [taylor]: Taking taylor expansion of x in x
1.961 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.961 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.961 * [taylor]: Taking taylor expansion of y in x
1.962 * [taylor]: Taking taylor expansion of 1 in y
1.964 * [taylor]: Taking taylor expansion of 0 in y
1.965 * [taylor]: Taking taylor expansion of 0 in y
1.967 * [taylor]: Taking taylor expansion of 0 in y
1.969 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
1.969 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.969 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.969 * [taylor]: Taking taylor expansion of y in y
1.973 * [taylor]: Taking taylor expansion of 0 in y
1.978 * [taylor]: Taking taylor expansion of 0 in y
1.980 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
1.980 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
1.980 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
1.980 * [taylor]: Taking taylor expansion of (pow x 4) in y
1.980 * [taylor]: Taking taylor expansion of x in y
1.980 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.980 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.980 * [taylor]: Taking taylor expansion of y in y
1.981 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.981 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.981 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.981 * [taylor]: Taking taylor expansion of x in x
1.982 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.982 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.982 * [taylor]: Taking taylor expansion of y in x
1.982 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.982 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.982 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.982 * [taylor]: Taking taylor expansion of x in x
1.983 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.983 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.983 * [taylor]: Taking taylor expansion of y in x
1.983 * [taylor]: Taking taylor expansion of 1 in y
1.985 * [taylor]: Taking taylor expansion of 0 in y
1.986 * [taylor]: Taking taylor expansion of 0 in y
1.988 * [taylor]: Taking taylor expansion of 0 in y
1.990 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
1.990 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.990 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.990 * [taylor]: Taking taylor expansion of y in y
1.993 * [taylor]: Taking taylor expansion of 0 in y
1.998 * [taylor]: Taking taylor expansion of 0 in y
2.000 * * * [progress]: simplifying candidates
2.006 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma 1 (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma 1 (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma 1 (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma 1 (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (/ (exp (pow x 4.0)) (exp (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (* (* (- (pow x 4.0) (pow y 4.0)) (- (pow x 4.0) (pow y 4.0))) (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (+ (* (pow x 4.0) (pow x 4.0)) (+ (* (pow y 4.0) (pow y 4.0)) (* (pow x 4.0) (pow y 4.0))))
  (- (pow y 4.0))
  (- (* (pow x 4.0) (pow x 4.0)) (* (pow y 4.0) (pow y 4.0)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
2.012 * * [simplify]: iteration  0 :  152  enodes  (cost  2374 )
2.034 * * [simplify]: iteration  1 :  316  enodes  (cost  1687 )
2.102 * * [simplify]: iteration  2 :  870  enodes  (cost  1361 )
2.573 * * [simplify]: iteration  3 :  3940  enodes  (cost  1158 )
5.816 * * [simplify]: iteration  done :  5001  enodes  (cost  1151 )
5.817 * [simplify]: Simplified to:
   (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow (sqrt y) (* 2 4.0))))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow y 4.0)))
  0
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow y 4.0)))
  0
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow y 4.0)))
  0
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow y 4.0)))
  0
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow y 4.0)))
  0
  (- (pow (sqrt x) (* 2 4.0)) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (- (pow (sqrt x) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (- (pow (cbrt (pow x 4.0)) 3) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (- (pow (cbrt y) 4.0) (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt y) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (pow (- (pow x 4.0) (pow y 4.0)) 3)
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (fma (pow y 4.0) (+ (pow x 4.0) (pow y 4.0)) (pow x (* 2 4.0)))
  (- (pow y 4.0))
  (- (pow x (* 2 4.0)) (pow y (* 2 4.0)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
5.817 * * * [progress]: adding candidates to table
5.960 * * [progress]: iteration 2 / 4
5.960 * * * [progress]: picking best candidate
5.962 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>
5.963 * * * [progress]: localizing error
5.973 * * * [progress]: generating rewritten candidates
5.973 * * * * [progress]: [ 1 / 4 ] rewriting at (2 2 1)
5.975 * * * * [progress]: [ 2 / 4 ] rewriting at (2 1 1)
5.977 * * * * [progress]: [ 3 / 4 ] rewriting at (2 2 2)
5.979 * * * * [progress]: [ 4 / 4 ] rewriting at (2 1 2)
5.983 * * * [progress]: generating series expansions
5.983 * * * * [progress]: [ 1 / 4 ] generating series at (2 2 1)
5.983 * [approximate]: Taking taylor expansion of (pow (pow x 2.0) 1.0) in (x) around 0
5.983 * [taylor]: Taking taylor expansion of (pow (pow x 2.0) 1.0) in x
5.983 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow x 2.0)))) in x
5.983 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow x 2.0))) in x
5.983 * [taylor]: Taking taylor expansion of 1.0 in x
5.983 * [taylor]: Taking taylor expansion of (log (pow x 2.0)) in x
5.983 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
5.983 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
5.983 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
5.983 * [taylor]: Taking taylor expansion of 2.0 in x
5.983 * [taylor]: Taking taylor expansion of (log x) in x
5.984 * [taylor]: Taking taylor expansion of x in x
5.985 * [taylor]: Taking taylor expansion of (pow (pow x 2.0) 1.0) in x
5.985 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow x 2.0)))) in x
5.985 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow x 2.0))) in x
5.985 * [taylor]: Taking taylor expansion of 1.0 in x
5.985 * [taylor]: Taking taylor expansion of (log (pow x 2.0)) in x
5.985 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
5.985 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
5.985 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
5.985 * [taylor]: Taking taylor expansion of 2.0 in x
5.985 * [taylor]: Taking taylor expansion of (log x) in x
5.985 * [taylor]: Taking taylor expansion of x in x
6.072 * [approximate]: Taking taylor expansion of (pow (/ 1 (pow x 2.0)) 1.0) in (x) around 0
6.072 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow x 2.0)) 1.0) in x
6.072 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow x 2.0))))) in x
6.072 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow x 2.0)))) in x
6.072 * [taylor]: Taking taylor expansion of 1.0 in x
6.072 * [taylor]: Taking taylor expansion of (log (/ 1 (pow x 2.0))) in x
6.072 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2.0)) in x
6.072 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.072 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.072 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.072 * [taylor]: Taking taylor expansion of 2.0 in x
6.072 * [taylor]: Taking taylor expansion of (log x) in x
6.072 * [taylor]: Taking taylor expansion of x in x
6.074 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow x 2.0)) 1.0) in x
6.074 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow x 2.0))))) in x
6.074 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow x 2.0)))) in x
6.074 * [taylor]: Taking taylor expansion of 1.0 in x
6.074 * [taylor]: Taking taylor expansion of (log (/ 1 (pow x 2.0))) in x
6.074 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2.0)) in x
6.074 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.074 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.074 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.074 * [taylor]: Taking taylor expansion of 2.0 in x
6.074 * [taylor]: Taking taylor expansion of (log x) in x
6.074 * [taylor]: Taking taylor expansion of x in x
6.163 * [approximate]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow x 2.0)) 1.0) in (x) around 0
6.163 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow x 2.0)) 1.0) in x
6.163 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0))))) in x
6.163 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0)))) in x
6.163 * [taylor]: Taking taylor expansion of 1.0 in x
6.163 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow x 2.0))) in x
6.163 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow x 2.0)) in x
6.163 * [taylor]: Taking taylor expansion of (pow -1 2.0) in x
6.163 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in x
6.163 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in x
6.163 * [taylor]: Taking taylor expansion of 2.0 in x
6.163 * [taylor]: Taking taylor expansion of (log -1) in x
6.163 * [taylor]: Taking taylor expansion of -1 in x
6.165 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.165 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.165 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.165 * [taylor]: Taking taylor expansion of 2.0 in x
6.165 * [taylor]: Taking taylor expansion of (log x) in x
6.165 * [taylor]: Taking taylor expansion of x in x
6.168 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow x 2.0)) 1.0) in x
6.168 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0))))) in x
6.168 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0)))) in x
6.168 * [taylor]: Taking taylor expansion of 1.0 in x
6.168 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow x 2.0))) in x
6.168 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow x 2.0)) in x
6.168 * [taylor]: Taking taylor expansion of (pow -1 2.0) in x
6.168 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in x
6.168 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in x
6.168 * [taylor]: Taking taylor expansion of 2.0 in x
6.168 * [taylor]: Taking taylor expansion of (log -1) in x
6.168 * [taylor]: Taking taylor expansion of -1 in x
6.170 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.170 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.170 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.170 * [taylor]: Taking taylor expansion of 2.0 in x
6.170 * [taylor]: Taking taylor expansion of (log x) in x
6.170 * [taylor]: Taking taylor expansion of x in x
6.334 * * * * [progress]: [ 2 / 4 ] generating series at (2 1 1)
6.334 * [approximate]: Taking taylor expansion of (pow (pow x 2.0) 1.0) in (x) around 0
6.334 * [taylor]: Taking taylor expansion of (pow (pow x 2.0) 1.0) in x
6.334 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow x 2.0)))) in x
6.334 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow x 2.0))) in x
6.334 * [taylor]: Taking taylor expansion of 1.0 in x
6.334 * [taylor]: Taking taylor expansion of (log (pow x 2.0)) in x
6.334 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.334 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.334 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.334 * [taylor]: Taking taylor expansion of 2.0 in x
6.334 * [taylor]: Taking taylor expansion of (log x) in x
6.334 * [taylor]: Taking taylor expansion of x in x
6.335 * [taylor]: Taking taylor expansion of (pow (pow x 2.0) 1.0) in x
6.335 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow x 2.0)))) in x
6.335 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow x 2.0))) in x
6.335 * [taylor]: Taking taylor expansion of 1.0 in x
6.335 * [taylor]: Taking taylor expansion of (log (pow x 2.0)) in x
6.335 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.335 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.335 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.335 * [taylor]: Taking taylor expansion of 2.0 in x
6.335 * [taylor]: Taking taylor expansion of (log x) in x
6.335 * [taylor]: Taking taylor expansion of x in x
6.423 * [approximate]: Taking taylor expansion of (pow (/ 1 (pow x 2.0)) 1.0) in (x) around 0
6.423 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow x 2.0)) 1.0) in x
6.423 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow x 2.0))))) in x
6.423 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow x 2.0)))) in x
6.423 * [taylor]: Taking taylor expansion of 1.0 in x
6.423 * [taylor]: Taking taylor expansion of (log (/ 1 (pow x 2.0))) in x
6.423 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2.0)) in x
6.423 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.423 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.423 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.423 * [taylor]: Taking taylor expansion of 2.0 in x
6.423 * [taylor]: Taking taylor expansion of (log x) in x
6.423 * [taylor]: Taking taylor expansion of x in x
6.424 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow x 2.0)) 1.0) in x
6.424 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow x 2.0))))) in x
6.424 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow x 2.0)))) in x
6.424 * [taylor]: Taking taylor expansion of 1.0 in x
6.424 * [taylor]: Taking taylor expansion of (log (/ 1 (pow x 2.0))) in x
6.424 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2.0)) in x
6.424 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.424 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.424 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.424 * [taylor]: Taking taylor expansion of 2.0 in x
6.424 * [taylor]: Taking taylor expansion of (log x) in x
6.425 * [taylor]: Taking taylor expansion of x in x
6.523 * [approximate]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow x 2.0)) 1.0) in (x) around 0
6.523 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow x 2.0)) 1.0) in x
6.523 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0))))) in x
6.523 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0)))) in x
6.523 * [taylor]: Taking taylor expansion of 1.0 in x
6.523 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow x 2.0))) in x
6.523 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow x 2.0)) in x
6.523 * [taylor]: Taking taylor expansion of (pow -1 2.0) in x
6.523 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in x
6.523 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in x
6.523 * [taylor]: Taking taylor expansion of 2.0 in x
6.523 * [taylor]: Taking taylor expansion of (log -1) in x
6.523 * [taylor]: Taking taylor expansion of -1 in x
6.525 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.525 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.525 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.525 * [taylor]: Taking taylor expansion of 2.0 in x
6.525 * [taylor]: Taking taylor expansion of (log x) in x
6.525 * [taylor]: Taking taylor expansion of x in x
6.528 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow x 2.0)) 1.0) in x
6.528 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0))))) in x
6.528 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow x 2.0)))) in x
6.528 * [taylor]: Taking taylor expansion of 1.0 in x
6.528 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow x 2.0))) in x
6.528 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow x 2.0)) in x
6.528 * [taylor]: Taking taylor expansion of (pow -1 2.0) in x
6.528 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in x
6.528 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in x
6.528 * [taylor]: Taking taylor expansion of 2.0 in x
6.528 * [taylor]: Taking taylor expansion of (log -1) in x
6.528 * [taylor]: Taking taylor expansion of -1 in x
6.530 * [taylor]: Taking taylor expansion of (pow x 2.0) in x
6.530 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log x))) in x
6.530 * [taylor]: Taking taylor expansion of (* 2.0 (log x)) in x
6.530 * [taylor]: Taking taylor expansion of 2.0 in x
6.530 * [taylor]: Taking taylor expansion of (log x) in x
6.530 * [taylor]: Taking taylor expansion of x in x
6.693 * * * * [progress]: [ 3 / 4 ] generating series at (2 2 2)
6.693 * [approximate]: Taking taylor expansion of (pow (pow y 2.0) 1.0) in (y) around 0
6.693 * [taylor]: Taking taylor expansion of (pow (pow y 2.0) 1.0) in y
6.693 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow y 2.0)))) in y
6.693 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow y 2.0))) in y
6.693 * [taylor]: Taking taylor expansion of 1.0 in y
6.693 * [taylor]: Taking taylor expansion of (log (pow y 2.0)) in y
6.693 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
6.693 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
6.693 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
6.693 * [taylor]: Taking taylor expansion of 2.0 in y
6.693 * [taylor]: Taking taylor expansion of (log y) in y
6.693 * [taylor]: Taking taylor expansion of y in y
6.694 * [taylor]: Taking taylor expansion of (pow (pow y 2.0) 1.0) in y
6.694 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow y 2.0)))) in y
6.694 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow y 2.0))) in y
6.694 * [taylor]: Taking taylor expansion of 1.0 in y
6.694 * [taylor]: Taking taylor expansion of (log (pow y 2.0)) in y
6.694 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
6.694 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
6.694 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
6.694 * [taylor]: Taking taylor expansion of 2.0 in y
6.694 * [taylor]: Taking taylor expansion of (log y) in y
6.694 * [taylor]: Taking taylor expansion of y in y
6.780 * [approximate]: Taking taylor expansion of (pow (/ 1 (pow y 2.0)) 1.0) in (y) around 0
6.781 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow y 2.0)) 1.0) in y
6.781 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow y 2.0))))) in y
6.781 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow y 2.0)))) in y
6.781 * [taylor]: Taking taylor expansion of 1.0 in y
6.781 * [taylor]: Taking taylor expansion of (log (/ 1 (pow y 2.0))) in y
6.781 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2.0)) in y
6.781 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
6.781 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
6.781 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
6.781 * [taylor]: Taking taylor expansion of 2.0 in y
6.781 * [taylor]: Taking taylor expansion of (log y) in y
6.781 * [taylor]: Taking taylor expansion of y in y
6.782 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow y 2.0)) 1.0) in y
6.782 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow y 2.0))))) in y
6.782 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow y 2.0)))) in y
6.782 * [taylor]: Taking taylor expansion of 1.0 in y
6.782 * [taylor]: Taking taylor expansion of (log (/ 1 (pow y 2.0))) in y
6.782 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2.0)) in y
6.782 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
6.782 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
6.782 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
6.782 * [taylor]: Taking taylor expansion of 2.0 in y
6.782 * [taylor]: Taking taylor expansion of (log y) in y
6.782 * [taylor]: Taking taylor expansion of y in y
6.875 * [approximate]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow y 2.0)) 1.0) in (y) around 0
6.876 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow y 2.0)) 1.0) in y
6.876 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0))))) in y
6.876 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0)))) in y
6.876 * [taylor]: Taking taylor expansion of 1.0 in y
6.876 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow y 2.0))) in y
6.876 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow y 2.0)) in y
6.876 * [taylor]: Taking taylor expansion of (pow -1 2.0) in y
6.876 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in y
6.876 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in y
6.876 * [taylor]: Taking taylor expansion of 2.0 in y
6.876 * [taylor]: Taking taylor expansion of (log -1) in y
6.876 * [taylor]: Taking taylor expansion of -1 in y
6.878 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
6.878 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
6.878 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
6.878 * [taylor]: Taking taylor expansion of 2.0 in y
6.878 * [taylor]: Taking taylor expansion of (log y) in y
6.878 * [taylor]: Taking taylor expansion of y in y
6.880 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow y 2.0)) 1.0) in y
6.880 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0))))) in y
6.880 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0)))) in y
6.880 * [taylor]: Taking taylor expansion of 1.0 in y
6.880 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow y 2.0))) in y
6.880 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow y 2.0)) in y
6.880 * [taylor]: Taking taylor expansion of (pow -1 2.0) in y
6.880 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in y
6.880 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in y
6.880 * [taylor]: Taking taylor expansion of 2.0 in y
6.880 * [taylor]: Taking taylor expansion of (log -1) in y
6.880 * [taylor]: Taking taylor expansion of -1 in y
6.882 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
6.882 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
6.882 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
6.882 * [taylor]: Taking taylor expansion of 2.0 in y
6.882 * [taylor]: Taking taylor expansion of (log y) in y
6.882 * [taylor]: Taking taylor expansion of y in y
7.046 * * * * [progress]: [ 4 / 4 ] generating series at (2 1 2)
7.046 * [approximate]: Taking taylor expansion of (pow (pow y 2.0) 1.0) in (y) around 0
7.046 * [taylor]: Taking taylor expansion of (pow (pow y 2.0) 1.0) in y
7.046 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow y 2.0)))) in y
7.046 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow y 2.0))) in y
7.046 * [taylor]: Taking taylor expansion of 1.0 in y
7.046 * [taylor]: Taking taylor expansion of (log (pow y 2.0)) in y
7.046 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
7.046 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
7.046 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
7.046 * [taylor]: Taking taylor expansion of 2.0 in y
7.046 * [taylor]: Taking taylor expansion of (log y) in y
7.046 * [taylor]: Taking taylor expansion of y in y
7.047 * [taylor]: Taking taylor expansion of (pow (pow y 2.0) 1.0) in y
7.047 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (pow y 2.0)))) in y
7.047 * [taylor]: Taking taylor expansion of (* 1.0 (log (pow y 2.0))) in y
7.047 * [taylor]: Taking taylor expansion of 1.0 in y
7.047 * [taylor]: Taking taylor expansion of (log (pow y 2.0)) in y
7.047 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
7.047 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
7.047 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
7.047 * [taylor]: Taking taylor expansion of 2.0 in y
7.047 * [taylor]: Taking taylor expansion of (log y) in y
7.047 * [taylor]: Taking taylor expansion of y in y
7.134 * [approximate]: Taking taylor expansion of (pow (/ 1 (pow y 2.0)) 1.0) in (y) around 0
7.134 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow y 2.0)) 1.0) in y
7.134 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow y 2.0))))) in y
7.134 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow y 2.0)))) in y
7.134 * [taylor]: Taking taylor expansion of 1.0 in y
7.134 * [taylor]: Taking taylor expansion of (log (/ 1 (pow y 2.0))) in y
7.134 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2.0)) in y
7.134 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
7.134 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
7.134 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
7.134 * [taylor]: Taking taylor expansion of 2.0 in y
7.134 * [taylor]: Taking taylor expansion of (log y) in y
7.134 * [taylor]: Taking taylor expansion of y in y
7.135 * [taylor]: Taking taylor expansion of (pow (/ 1 (pow y 2.0)) 1.0) in y
7.135 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ 1 (pow y 2.0))))) in y
7.135 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ 1 (pow y 2.0)))) in y
7.135 * [taylor]: Taking taylor expansion of 1.0 in y
7.135 * [taylor]: Taking taylor expansion of (log (/ 1 (pow y 2.0))) in y
7.135 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2.0)) in y
7.135 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
7.135 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
7.135 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
7.135 * [taylor]: Taking taylor expansion of 2.0 in y
7.135 * [taylor]: Taking taylor expansion of (log y) in y
7.135 * [taylor]: Taking taylor expansion of y in y
7.229 * [approximate]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow y 2.0)) 1.0) in (y) around 0
7.229 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow y 2.0)) 1.0) in y
7.229 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0))))) in y
7.229 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0)))) in y
7.229 * [taylor]: Taking taylor expansion of 1.0 in y
7.229 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow y 2.0))) in y
7.229 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow y 2.0)) in y
7.229 * [taylor]: Taking taylor expansion of (pow -1 2.0) in y
7.229 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in y
7.229 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in y
7.229 * [taylor]: Taking taylor expansion of 2.0 in y
7.229 * [taylor]: Taking taylor expansion of (log -1) in y
7.229 * [taylor]: Taking taylor expansion of -1 in y
7.231 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
7.231 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
7.231 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
7.231 * [taylor]: Taking taylor expansion of 2.0 in y
7.231 * [taylor]: Taking taylor expansion of (log y) in y
7.231 * [taylor]: Taking taylor expansion of y in y
7.239 * [taylor]: Taking taylor expansion of (pow (/ (pow -1 2.0) (pow y 2.0)) 1.0) in y
7.239 * [taylor]: Taking taylor expansion of (exp (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0))))) in y
7.239 * [taylor]: Taking taylor expansion of (* 1.0 (log (/ (pow -1 2.0) (pow y 2.0)))) in y
7.239 * [taylor]: Taking taylor expansion of 1.0 in y
7.239 * [taylor]: Taking taylor expansion of (log (/ (pow -1 2.0) (pow y 2.0))) in y
7.239 * [taylor]: Taking taylor expansion of (/ (pow -1 2.0) (pow y 2.0)) in y
7.239 * [taylor]: Taking taylor expansion of (pow -1 2.0) in y
7.239 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log -1))) in y
7.239 * [taylor]: Taking taylor expansion of (* 2.0 (log -1)) in y
7.239 * [taylor]: Taking taylor expansion of 2.0 in y
7.239 * [taylor]: Taking taylor expansion of (log -1) in y
7.239 * [taylor]: Taking taylor expansion of -1 in y
7.241 * [taylor]: Taking taylor expansion of (pow y 2.0) in y
7.241 * [taylor]: Taking taylor expansion of (exp (* 2.0 (log y))) in y
7.241 * [taylor]: Taking taylor expansion of (* 2.0 (log y)) in y
7.241 * [taylor]: Taking taylor expansion of 2.0 in y
7.241 * [taylor]: Taking taylor expansion of (log y) in y
7.241 * [taylor]: Taking taylor expansion of y in y
7.408 * * * [progress]: simplifying candidates
7.409 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (sqrt (pow x 4.0)))
  (log1p (sqrt (pow x 4.0)))
  (log (sqrt (pow x 4.0)))
  (exp (sqrt (pow x 4.0)))
  (* (cbrt (sqrt (pow x 4.0))) (cbrt (sqrt (pow x 4.0))))
  (cbrt (sqrt (pow x 4.0)))
  (* (* (sqrt (pow x 4.0)) (sqrt (pow x 4.0))) (sqrt (pow x 4.0)))
  (sqrt (pow (* (cbrt x) (cbrt x)) 4.0))
  (sqrt (pow (cbrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  (sqrt (pow 1 4.0))
  (sqrt (pow x 4.0))
  (sqrt (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))))
  (sqrt (cbrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (sqrt 1)
  (sqrt (pow x 4.0))
  (sqrt (pow x (/ 4.0 2)))
  (sqrt (pow x (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (expm1 (sqrt (pow x 4.0)))
  (log1p (sqrt (pow x 4.0)))
  (log (sqrt (pow x 4.0)))
  (exp (sqrt (pow x 4.0)))
  (* (cbrt (sqrt (pow x 4.0))) (cbrt (sqrt (pow x 4.0))))
  (cbrt (sqrt (pow x 4.0)))
  (* (* (sqrt (pow x 4.0)) (sqrt (pow x 4.0))) (sqrt (pow x 4.0)))
  (sqrt (pow (* (cbrt x) (cbrt x)) 4.0))
  (sqrt (pow (cbrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  (sqrt (pow 1 4.0))
  (sqrt (pow x 4.0))
  (sqrt (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))))
  (sqrt (cbrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (sqrt 1)
  (sqrt (pow x 4.0))
  (sqrt (pow x (/ 4.0 2)))
  (sqrt (pow x (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (expm1 (sqrt (pow y 4.0)))
  (log1p (sqrt (pow y 4.0)))
  (log (sqrt (pow y 4.0)))
  (exp (sqrt (pow y 4.0)))
  (* (cbrt (sqrt (pow y 4.0))) (cbrt (sqrt (pow y 4.0))))
  (cbrt (sqrt (pow y 4.0)))
  (* (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))) (sqrt (pow y 4.0)))
  (sqrt (pow (* (cbrt y) (cbrt y)) 4.0))
  (sqrt (pow (cbrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  (sqrt (pow 1 4.0))
  (sqrt (pow y 4.0))
  (sqrt (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))
  (sqrt (cbrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (sqrt 1)
  (sqrt (pow y 4.0))
  (sqrt (pow y (/ 4.0 2)))
  (sqrt (pow y (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (expm1 (sqrt (pow y 4.0)))
  (log1p (sqrt (pow y 4.0)))
  (log (sqrt (pow y 4.0)))
  (exp (sqrt (pow y 4.0)))
  (* (cbrt (sqrt (pow y 4.0))) (cbrt (sqrt (pow y 4.0))))
  (cbrt (sqrt (pow y 4.0)))
  (* (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))) (sqrt (pow y 4.0)))
  (sqrt (pow (* (cbrt y) (cbrt y)) 4.0))
  (sqrt (pow (cbrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  (sqrt (pow 1 4.0))
  (sqrt (pow y 4.0))
  (sqrt (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))
  (sqrt (cbrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (sqrt 1)
  (sqrt (pow y 4.0))
  (sqrt (pow y (/ 4.0 2)))
  (sqrt (pow y (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (pow (pow x 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow x 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow y 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow y 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
7.411 * * [simplify]: iteration  0 :  79  enodes  (cost  704 )
7.422 * * [simplify]: iteration  1 :  140  enodes  (cost  644 )
7.440 * * [simplify]: iteration  2 :  265  enodes  (cost  636 )
7.482 * * [simplify]: iteration  3 :  577  enodes  (cost  636 )
7.602 * * [simplify]: iteration  4 :  1439  enodes  (cost  636 )
8.089 * * [simplify]: iteration  5 :  4329  enodes  (cost  636 )
9.624 * * [simplify]: iteration  done :  5001  enodes  (cost  636 )
9.624 * [simplify]: Simplified to:
   (expm1 (sqrt (pow x 4.0)))
  (log1p (sqrt (pow x 4.0)))
  (log (sqrt (pow x 4.0)))
  (exp (sqrt (pow x 4.0)))
  (* (cbrt (sqrt (pow x 4.0))) (cbrt (sqrt (pow x 4.0))))
  (cbrt (sqrt (pow x 4.0)))
  (pow (sqrt (pow x 4.0)) 3)
  (sqrt (pow (* (cbrt x) (cbrt x)) 4.0))
  (sqrt (pow (cbrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  1
  (sqrt (pow x 4.0))
  (fabs (cbrt (pow x 4.0)))
  (sqrt (cbrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  1
  (sqrt (pow x 4.0))
  (sqrt (pow x (/ 4.0 2)))
  (sqrt (pow x (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (expm1 (sqrt (pow x 4.0)))
  (log1p (sqrt (pow x 4.0)))
  (log (sqrt (pow x 4.0)))
  (exp (sqrt (pow x 4.0)))
  (* (cbrt (sqrt (pow x 4.0))) (cbrt (sqrt (pow x 4.0))))
  (cbrt (sqrt (pow x 4.0)))
  (pow (sqrt (pow x 4.0)) 3)
  (sqrt (pow (* (cbrt x) (cbrt x)) 4.0))
  (sqrt (pow (cbrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  (sqrt (pow (sqrt x) 4.0))
  1
  (sqrt (pow x 4.0))
  (fabs (cbrt (pow x 4.0)))
  (sqrt (cbrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  1
  (sqrt (pow x 4.0))
  (sqrt (pow x (/ 4.0 2)))
  (sqrt (pow x (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow x 4.0)))
  (sqrt (sqrt (pow x 4.0)))
  (expm1 (sqrt (pow y 4.0)))
  (log1p (sqrt (pow y 4.0)))
  (log (sqrt (pow y 4.0)))
  (exp (sqrt (pow y 4.0)))
  (* (cbrt (sqrt (pow y 4.0))) (cbrt (sqrt (pow y 4.0))))
  (cbrt (sqrt (pow y 4.0)))
  (pow (sqrt (pow y 4.0)) 3)
  (sqrt (pow (* (cbrt y) (cbrt y)) 4.0))
  (sqrt (pow (cbrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  1
  (sqrt (pow y 4.0))
  (fabs (cbrt (pow y 4.0)))
  (sqrt (cbrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  1
  (sqrt (pow y 4.0))
  (sqrt (pow y (/ 4.0 2)))
  (sqrt (pow y (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (expm1 (sqrt (pow y 4.0)))
  (log1p (sqrt (pow y 4.0)))
  (log (sqrt (pow y 4.0)))
  (exp (sqrt (pow y 4.0)))
  (* (cbrt (sqrt (pow y 4.0))) (cbrt (sqrt (pow y 4.0))))
  (cbrt (sqrt (pow y 4.0)))
  (pow (sqrt (pow y 4.0)) 3)
  (sqrt (pow (* (cbrt y) (cbrt y)) 4.0))
  (sqrt (pow (cbrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  (sqrt (pow (sqrt y) 4.0))
  1
  (sqrt (pow y 4.0))
  (fabs (cbrt (pow y 4.0)))
  (sqrt (cbrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  1
  (sqrt (pow y 4.0))
  (sqrt (pow y (/ 4.0 2)))
  (sqrt (pow y (/ 4.0 2)))
  (/ 4.0 2)
  (sqrt (sqrt (pow y 4.0)))
  (sqrt (sqrt (pow y 4.0)))
  (pow (pow x 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow x 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow x 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow y 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow y 2.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
  (pow (pow (pow (pow (pow (pow (pow (pow y 2.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0) 1.0)
9.625 * * * [progress]: adding candidates to table
9.957 * [progress]: [Phase 3 of 3] Extracting.
9.957 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))> #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>)
9.958 * * * [regime-changes]: Trying 5 branch expressions: ((pow y 4.0) (pow x 4.0) (- (pow x 4.0) (pow y 4.0)) y x)
9.958 * * * * [regimes]: Trying to branch on (pow y 4.0) from (#<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))> #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>)
9.973 * * * * [regimes]: Trying to branch on (pow x 4.0) from (#<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))> #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>)
9.989 * * * * [regimes]: Trying to branch on (- (pow x 4.0) (pow y 4.0)) from (#<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))> #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>)
10.012 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))> #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>)
10.025 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))> #<alt (λ (x y) (* (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))))>)
10.038 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
10.038 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (pow x 4.0) (pow y 4.0))
10.038 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
10.038 * * [simplify]: iteration  done :  6  enodes  (cost  7 )
10.038 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
11.168 * [regime-testing]: Baseline error score: 0.0025003125390673834
11.169 * [regime-testing]: Oracle error score: 0.001375171896487061
11.170 * [regime-testing]: End program error score: 0.0025003125390673834