9.167 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.017 * * * [progress]: [2/2] Setting up program.
0.019 * [progress]: [Phase 2 of 3] Improving.
0.019 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (* 4.0 (- (- x y) (* z 0.5))) z)
0.022 * * [simplify]: iteration  0 :  20  enodes  (cost  5 )
0.024 * * [simplify]: iteration  1 :  47  enodes  (cost  5 )
0.026 * * [simplify]: iteration  2 :  146  enodes  (cost  5 )
0.030 * * [simplify]: iteration  3 :  356  enodes  (cost  5 )
0.035 * * [simplify]: iteration  4 :  750  enodes  (cost  5 )
0.046 * * [simplify]: iteration  5 :  1604  enodes  (cost  5 )
0.061 * * [simplify]: iteration  6 :  2577  enodes  (cost  5 )
0.086 * * [simplify]: iteration  7 :  5001  enodes  (cost  4 )
0.087 * [simplify]: Simplified to:
   (* (/ 4.0 z) (- x (fma 0.5 z y)))
0.089 * * [progress]: iteration 1 / 4
0.090 * * * [progress]: picking best candidate
0.093 * * * * [pick]: Picked  #<alt (λ (x y z) (/ (* 4.0 (- (- x y) (* z 0.5))) z))>
0.093 * * * [progress]: localizing error
0.101 * * * [progress]: generating rewritten candidates
0.101 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.141 * * * [progress]: generating series expansions
0.141 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.142 * [approximate]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in (x y z) around 0
0.142 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in z
0.142 * [taylor]: Taking taylor expansion of 4.0 in z
0.142 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in z
0.142 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in z
0.142 * [taylor]: Taking taylor expansion of x in z
0.142 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in z
0.142 * [taylor]: Taking taylor expansion of (* 0.5 z) in z
0.142 * [taylor]: Taking taylor expansion of 0.5 in z
0.142 * [taylor]: Taking taylor expansion of z in z
0.142 * [taylor]: Taking taylor expansion of y in z
0.142 * [taylor]: Taking taylor expansion of z in z
0.142 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in y
0.142 * [taylor]: Taking taylor expansion of 4.0 in y
0.142 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in y
0.142 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in y
0.142 * [taylor]: Taking taylor expansion of x in y
0.143 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in y
0.143 * [taylor]: Taking taylor expansion of (* 0.5 z) in y
0.143 * [taylor]: Taking taylor expansion of 0.5 in y
0.143 * [taylor]: Taking taylor expansion of z in y
0.143 * [taylor]: Taking taylor expansion of y in y
0.143 * [taylor]: Taking taylor expansion of z in y
0.143 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in x
0.143 * [taylor]: Taking taylor expansion of 4.0 in x
0.143 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in x
0.143 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in x
0.143 * [taylor]: Taking taylor expansion of (* 0.5 z) in x
0.143 * [taylor]: Taking taylor expansion of 0.5 in x
0.143 * [taylor]: Taking taylor expansion of z in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of z in x
0.143 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in x
0.143 * [taylor]: Taking taylor expansion of 4.0 in x
0.143 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in x
0.143 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in x
0.143 * [taylor]: Taking taylor expansion of (* 0.5 z) in x
0.143 * [taylor]: Taking taylor expansion of 0.5 in x
0.143 * [taylor]: Taking taylor expansion of z in x
0.143 * [taylor]: Taking taylor expansion of y in x
0.143 * [taylor]: Taking taylor expansion of z in x
0.144 * [taylor]: Taking taylor expansion of (* -4.0 (/ (+ (* 0.5 z) y) z)) in y
0.144 * [taylor]: Taking taylor expansion of -4.0 in y
0.144 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 z) y) z) in y
0.144 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in y
0.144 * [taylor]: Taking taylor expansion of (* 0.5 z) in y
0.144 * [taylor]: Taking taylor expansion of 0.5 in y
0.144 * [taylor]: Taking taylor expansion of z in y
0.144 * [taylor]: Taking taylor expansion of y in y
0.144 * [taylor]: Taking taylor expansion of z in y
0.144 * [taylor]: Taking taylor expansion of -2.0 in z
0.146 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in y
0.146 * [taylor]: Taking taylor expansion of 4.0 in y
0.146 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.146 * [taylor]: Taking taylor expansion of z in y
0.146 * [taylor]: Taking taylor expansion of (/ 4.0 z) in z
0.146 * [taylor]: Taking taylor expansion of 4.0 in z
0.146 * [taylor]: Taking taylor expansion of z in z
0.147 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.147 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.147 * [taylor]: Taking taylor expansion of 4.0 in z
0.147 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.147 * [taylor]: Taking taylor expansion of z in z
0.149 * [approximate]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in (x y z) around 0
0.149 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in z
0.149 * [taylor]: Taking taylor expansion of 4.0 in z
0.149 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in z
0.149 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in z
0.149 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.149 * [taylor]: Taking taylor expansion of x in z
0.149 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in z
0.149 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in z
0.149 * [taylor]: Taking taylor expansion of 0.5 in z
0.149 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.149 * [taylor]: Taking taylor expansion of z in z
0.149 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.150 * [taylor]: Taking taylor expansion of y in z
0.150 * [taylor]: Taking taylor expansion of z in z
0.150 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in y
0.150 * [taylor]: Taking taylor expansion of 4.0 in y
0.150 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in y
0.150 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in y
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.150 * [taylor]: Taking taylor expansion of x in y
0.150 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in y
0.150 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in y
0.150 * [taylor]: Taking taylor expansion of 0.5 in y
0.150 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.150 * [taylor]: Taking taylor expansion of z in y
0.150 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.150 * [taylor]: Taking taylor expansion of y in y
0.150 * [taylor]: Taking taylor expansion of z in y
0.150 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in x
0.150 * [taylor]: Taking taylor expansion of 4.0 in x
0.150 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in x
0.150 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.151 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.151 * [taylor]: Taking taylor expansion of 0.5 in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.151 * [taylor]: Taking taylor expansion of z in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of z in x
0.151 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in x
0.151 * [taylor]: Taking taylor expansion of 4.0 in x
0.151 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in x
0.151 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.151 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.151 * [taylor]: Taking taylor expansion of 0.5 in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.151 * [taylor]: Taking taylor expansion of z in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.151 * [taylor]: Taking taylor expansion of z in x
0.152 * [taylor]: Taking taylor expansion of (* 4.0 z) in y
0.152 * [taylor]: Taking taylor expansion of 4.0 in y
0.152 * [taylor]: Taking taylor expansion of z in y
0.153 * [taylor]: Taking taylor expansion of (- (+ (* 4.0 (/ z y)) 2.0)) in y
0.153 * [taylor]: Taking taylor expansion of (+ (* 4.0 (/ z y)) 2.0) in y
0.153 * [taylor]: Taking taylor expansion of (* 4.0 (/ z y)) in y
0.153 * [taylor]: Taking taylor expansion of 4.0 in y
0.153 * [taylor]: Taking taylor expansion of (/ z y) in y
0.153 * [taylor]: Taking taylor expansion of z in y
0.153 * [taylor]: Taking taylor expansion of y in y
0.153 * [taylor]: Taking taylor expansion of 2.0 in y
0.153 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.153 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.153 * [taylor]: Taking taylor expansion of 4.0 in z
0.153 * [taylor]: Taking taylor expansion of z in z
0.153 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.153 * [taylor]: Taking taylor expansion of 4.0 in z
0.154 * [taylor]: Taking taylor expansion of z in z
0.156 * [taylor]: Taking taylor expansion of 0 in y
0.158 * [taylor]: Taking taylor expansion of (- 2.0) in z
0.158 * [taylor]: Taking taylor expansion of 2.0 in z
0.158 * [taylor]: Taking taylor expansion of 0 in z
0.162 * [taylor]: Taking taylor expansion of 0 in y
0.162 * [taylor]: Taking taylor expansion of 0 in z
0.164 * [taylor]: Taking taylor expansion of 0 in z
0.164 * [taylor]: Taking taylor expansion of 0 in z
0.168 * [approximate]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in (x y z) around 0
0.168 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in z
0.168 * [taylor]: Taking taylor expansion of -4.0 in z
0.168 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in z
0.168 * [taylor]: Taking taylor expansion of z in z
0.168 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in z
0.168 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in z
0.168 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in z
0.168 * [taylor]: Taking taylor expansion of 0.5 in z
0.168 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.168 * [taylor]: Taking taylor expansion of z in z
0.168 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.168 * [taylor]: Taking taylor expansion of y in z
0.168 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.168 * [taylor]: Taking taylor expansion of x in z
0.168 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in y
0.168 * [taylor]: Taking taylor expansion of -4.0 in y
0.169 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in y
0.169 * [taylor]: Taking taylor expansion of z in y
0.169 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in y
0.169 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in y
0.169 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in y
0.169 * [taylor]: Taking taylor expansion of 0.5 in y
0.169 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.169 * [taylor]: Taking taylor expansion of z in y
0.169 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.169 * [taylor]: Taking taylor expansion of y in y
0.169 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.169 * [taylor]: Taking taylor expansion of x in y
0.169 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in x
0.169 * [taylor]: Taking taylor expansion of -4.0 in x
0.169 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in x
0.169 * [taylor]: Taking taylor expansion of z in x
0.169 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in x
0.169 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.169 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.169 * [taylor]: Taking taylor expansion of 0.5 in x
0.169 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.169 * [taylor]: Taking taylor expansion of z in x
0.169 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.169 * [taylor]: Taking taylor expansion of y in x
0.169 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.169 * [taylor]: Taking taylor expansion of x in x
0.170 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in x
0.170 * [taylor]: Taking taylor expansion of -4.0 in x
0.170 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in x
0.170 * [taylor]: Taking taylor expansion of z in x
0.170 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in x
0.170 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.170 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.170 * [taylor]: Taking taylor expansion of 0.5 in x
0.170 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.170 * [taylor]: Taking taylor expansion of z in x
0.170 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.170 * [taylor]: Taking taylor expansion of y in x
0.170 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.170 * [taylor]: Taking taylor expansion of x in x
0.171 * [taylor]: Taking taylor expansion of (* 4.0 z) in y
0.171 * [taylor]: Taking taylor expansion of 4.0 in y
0.171 * [taylor]: Taking taylor expansion of z in y
0.172 * [taylor]: Taking taylor expansion of (- (+ (* 4.0 (/ z y)) 2.0)) in y
0.172 * [taylor]: Taking taylor expansion of (+ (* 4.0 (/ z y)) 2.0) in y
0.172 * [taylor]: Taking taylor expansion of (* 4.0 (/ z y)) in y
0.172 * [taylor]: Taking taylor expansion of 4.0 in y
0.172 * [taylor]: Taking taylor expansion of (/ z y) in y
0.172 * [taylor]: Taking taylor expansion of z in y
0.172 * [taylor]: Taking taylor expansion of y in y
0.172 * [taylor]: Taking taylor expansion of 2.0 in y
0.172 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.172 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.172 * [taylor]: Taking taylor expansion of 4.0 in z
0.172 * [taylor]: Taking taylor expansion of z in z
0.173 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.173 * [taylor]: Taking taylor expansion of 4.0 in z
0.173 * [taylor]: Taking taylor expansion of z in z
0.175 * [taylor]: Taking taylor expansion of 0 in y
0.176 * [taylor]: Taking taylor expansion of (- 2.0) in z
0.176 * [taylor]: Taking taylor expansion of 2.0 in z
0.177 * [taylor]: Taking taylor expansion of 0 in z
0.180 * [taylor]: Taking taylor expansion of 0 in y
0.180 * [taylor]: Taking taylor expansion of 0 in z
0.182 * [taylor]: Taking taylor expansion of 0 in z
0.183 * [taylor]: Taking taylor expansion of 0 in z
0.186 * * * [progress]: simplifying candidates
0.187 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (log1p (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (- (+ (log 4.0) (log (- (- x y) (* z 0.5)))) (log z))
  (- (log (* 4.0 (- (- x y) (* z 0.5)))) (log z))
  (log (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (exp (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (/ (* (* (* 4.0 4.0) 4.0) (* (* (- (- x y) (* z 0.5)) (- (- x y) (* z 0.5))) (- (- x y) (* z 0.5)))) (* (* z z) z))
  (/ (* (* (* 4.0 (- (- x y) (* z 0.5))) (* 4.0 (- (- x y) (* z 0.5)))) (* 4.0 (- (- x y) (* z 0.5)))) (* (* z z) z))
  (* (cbrt (/ (* 4.0 (- (- x y) (* z 0.5))) z)) (cbrt (/ (* 4.0 (- (- x y) (* z 0.5))) z)))
  (cbrt (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (* (* (/ (* 4.0 (- (- x y) (* z 0.5))) z) (/ (* 4.0 (- (- x y) (* z 0.5))) z)) (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (sqrt (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (sqrt (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (- (* 4.0 (- (- x y) (* z 0.5))))
  (- z)
  (/ 4.0 (* (cbrt z) (cbrt z)))
  (/ (- (- x y) (* z 0.5)) (cbrt z))
  (/ 4.0 (sqrt z))
  (/ (- (- x y) (* z 0.5)) (sqrt z))
  (/ 4.0 1)
  (/ (- (- x y) (* z 0.5)) z)
  (/ 1 z)
  (/ z (* 4.0 (- (- x y) (* z 0.5))))
  (/ (* 4.0 (- (- x y) (* z 0.5))) (* (cbrt z) (cbrt z)))
  (/ (* 4.0 (- (- x y) (* z 0.5))) (sqrt z))
  (/ (* 4.0 (- (- x y) (* z 0.5))) 1)
  (/ z (- (- x y) (* z 0.5)))
  (* z (+ (* (- x y) (- x y)) (+ (* (* z 0.5) (* z 0.5)) (* (- x y) (* z 0.5)))))
  (* z (+ (- x y) (* z 0.5)))
  (- (* 4.0 (/ x z)) (+ (* 4.0 (/ y z)) 2.0))
  (- (* 4.0 (/ x z)) (+ (* 4.0 (/ y z)) 2.0))
  (- (* 4.0 (/ x z)) (+ (* 4.0 (/ y z)) 2.0))
0.191 * * [simplify]: iteration  0 :  193  enodes  (cost  201 )
0.196 * * [simplify]: iteration  1 :  818  enodes  (cost  168 )
0.214 * * [simplify]: iteration  2 :  4419  enodes  (cost  164 )
0.288 * * [simplify]: iteration  3 :  5001  enodes  (cost  163 )
0.290 * [simplify]: Simplified to:
   (expm1 (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (log1p (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (log (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (log (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (log (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (exp (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (pow (/ (* 4.0 (- (- x y) (* z 0.5))) z) 3)
  (pow (/ (* 4.0 (- (- x y) (* z 0.5))) z) 3)
  (* (cbrt (/ (* 4.0 (- (- x y) (* z 0.5))) z)) (cbrt (/ (* 4.0 (- (- x y) (* z 0.5))) z)))
  (cbrt (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (pow (/ (* 4.0 (- (- x y) (* z 0.5))) z) 3)
  (sqrt (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (sqrt (/ (* 4.0 (- (- x y) (* z 0.5))) z))
  (- (* 4.0 (- (- x y) (* z 0.5))))
  (- z)
  (/ 4.0 (* (cbrt z) (cbrt z)))
  (/ (- (- x y) (* z 0.5)) (cbrt z))
  (/ 4.0 (sqrt z))
  (/ (- (- x y) (* z 0.5)) (sqrt z))
  4.0
  (/ (- (- x y) (* z 0.5)) z)
  (/ 1 z)
  (/ z (* 4.0 (- (- x y) (* z 0.5))))
  (/ (* 4.0 (- (- x y) (* z 0.5))) (* (cbrt z) (cbrt z)))
  (/ (* 4.0 (- (- x y) (* z 0.5))) (sqrt z))
  (* 4.0 (- (- x y) (* z 0.5)))
  (/ z (- (- x y) (* z 0.5)))
  (fma z (* (- x y) (fma 0.5 z (- x y))) (* (pow z 3) (* 0.5 0.5)))
  (* z (+ (- x y) (* z 0.5)))
  (fma 4.0 (/ (- x y) z) (- 2.0))
  (fma 4.0 (/ (- x y) z) (- 2.0))
  (fma 4.0 (/ (- x y) z) (- 2.0))
0.290 * * * [progress]: adding candidates to table
0.353 * * [progress]: iteration 2 / 4
0.353 * * * [progress]: picking best candidate
0.358 * * * * [pick]: Picked  #<alt (λ (x y z) (fma 4.0 (/ (- x y) z) (- 2.0)))>
0.358 * * * [progress]: localizing error
0.365 * * * [progress]: generating rewritten candidates
0.365 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.376 * * * [progress]: generating series expansions
0.376 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.376 * [approximate]: Taking taylor expansion of (/ (- x y) z) in (x y z) around 0
0.376 * [taylor]: Taking taylor expansion of (/ (- x y) z) in z
0.376 * [taylor]: Taking taylor expansion of (- x y) in z
0.376 * [taylor]: Taking taylor expansion of x in z
0.376 * [taylor]: Taking taylor expansion of y in z
0.376 * [taylor]: Taking taylor expansion of z in z
0.376 * [taylor]: Taking taylor expansion of (/ (- x y) z) in y
0.376 * [taylor]: Taking taylor expansion of (- x y) in y
0.376 * [taylor]: Taking taylor expansion of x in y
0.376 * [taylor]: Taking taylor expansion of y in y
0.376 * [taylor]: Taking taylor expansion of z in y
0.377 * [taylor]: Taking taylor expansion of (/ (- x y) z) in x
0.377 * [taylor]: Taking taylor expansion of (- x y) in x
0.377 * [taylor]: Taking taylor expansion of x in x
0.377 * [taylor]: Taking taylor expansion of y in x
0.377 * [taylor]: Taking taylor expansion of z in x
0.377 * [taylor]: Taking taylor expansion of (/ (- x y) z) in x
0.377 * [taylor]: Taking taylor expansion of (- x y) in x
0.377 * [taylor]: Taking taylor expansion of x in x
0.377 * [taylor]: Taking taylor expansion of y in x
0.377 * [taylor]: Taking taylor expansion of z in x
0.378 * [taylor]: Taking taylor expansion of (* -1 (/ y z)) in y
0.378 * [taylor]: Taking taylor expansion of -1 in y
0.378 * [taylor]: Taking taylor expansion of (/ y z) in y
0.378 * [taylor]: Taking taylor expansion of y in y
0.378 * [taylor]: Taking taylor expansion of z in y
0.378 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.378 * [taylor]: Taking taylor expansion of z in y
0.378 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.378 * [taylor]: Taking taylor expansion of z in z
0.379 * [taylor]: Taking taylor expansion of (/ -1 z) in z
0.379 * [taylor]: Taking taylor expansion of -1 in z
0.379 * [taylor]: Taking taylor expansion of z in z
0.380 * [taylor]: Taking taylor expansion of 0 in y
0.380 * [taylor]: Taking taylor expansion of 0 in z
0.380 * [taylor]: Taking taylor expansion of 0 in z
0.380 * [taylor]: Taking taylor expansion of 0 in z
0.382 * [taylor]: Taking taylor expansion of 0 in y
0.382 * [taylor]: Taking taylor expansion of 0 in z
0.382 * [taylor]: Taking taylor expansion of 0 in z
0.382 * [taylor]: Taking taylor expansion of 0 in z
0.383 * [taylor]: Taking taylor expansion of 0 in z
0.383 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in (x y z) around 0
0.384 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in z
0.384 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in z
0.384 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.384 * [taylor]: Taking taylor expansion of x in z
0.384 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.384 * [taylor]: Taking taylor expansion of y in z
0.384 * [taylor]: Taking taylor expansion of z in z
0.384 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in y
0.384 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.384 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.384 * [taylor]: Taking taylor expansion of x in y
0.384 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.384 * [taylor]: Taking taylor expansion of y in y
0.384 * [taylor]: Taking taylor expansion of z in y
0.384 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in x
0.384 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.384 * [taylor]: Taking taylor expansion of x in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.384 * [taylor]: Taking taylor expansion of y in x
0.384 * [taylor]: Taking taylor expansion of z in x
0.385 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in x
0.385 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.385 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.385 * [taylor]: Taking taylor expansion of x in x
0.385 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.385 * [taylor]: Taking taylor expansion of y in x
0.385 * [taylor]: Taking taylor expansion of z in x
0.385 * [taylor]: Taking taylor expansion of z in y
0.386 * [taylor]: Taking taylor expansion of (- (/ z y)) in y
0.386 * [taylor]: Taking taylor expansion of (/ z y) in y
0.386 * [taylor]: Taking taylor expansion of z in y
0.386 * [taylor]: Taking taylor expansion of y in y
0.386 * [taylor]: Taking taylor expansion of (- z) in z
0.386 * [taylor]: Taking taylor expansion of z in z
0.387 * [taylor]: Taking taylor expansion of z in z
0.388 * [taylor]: Taking taylor expansion of 0 in y
0.389 * [taylor]: Taking taylor expansion of 0 in z
0.389 * [taylor]: Taking taylor expansion of 0 in z
0.391 * [taylor]: Taking taylor expansion of 0 in y
0.391 * [taylor]: Taking taylor expansion of 0 in z
0.392 * [taylor]: Taking taylor expansion of 0 in z
0.392 * [taylor]: Taking taylor expansion of 0 in z
0.393 * [approximate]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in (x y z) around 0
0.393 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in z
0.393 * [taylor]: Taking taylor expansion of -1 in z
0.393 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in z
0.393 * [taylor]: Taking taylor expansion of z in z
0.393 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in z
0.393 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.393 * [taylor]: Taking taylor expansion of y in z
0.393 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.393 * [taylor]: Taking taylor expansion of x in z
0.393 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in y
0.393 * [taylor]: Taking taylor expansion of -1 in y
0.393 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in y
0.393 * [taylor]: Taking taylor expansion of z in y
0.393 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.393 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.393 * [taylor]: Taking taylor expansion of y in y
0.393 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.393 * [taylor]: Taking taylor expansion of x in y
0.393 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in x
0.394 * [taylor]: Taking taylor expansion of -1 in x
0.394 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in x
0.394 * [taylor]: Taking taylor expansion of z in x
0.394 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.394 * [taylor]: Taking taylor expansion of y in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.394 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in x
0.394 * [taylor]: Taking taylor expansion of -1 in x
0.394 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in x
0.394 * [taylor]: Taking taylor expansion of z in x
0.394 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.394 * [taylor]: Taking taylor expansion of y in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.395 * [taylor]: Taking taylor expansion of z in y
0.396 * [taylor]: Taking taylor expansion of (- (/ z y)) in y
0.396 * [taylor]: Taking taylor expansion of (/ z y) in y
0.396 * [taylor]: Taking taylor expansion of z in y
0.396 * [taylor]: Taking taylor expansion of y in y
0.396 * [taylor]: Taking taylor expansion of (- z) in z
0.396 * [taylor]: Taking taylor expansion of z in z
0.397 * [taylor]: Taking taylor expansion of z in z
0.398 * [taylor]: Taking taylor expansion of 0 in y
0.399 * [taylor]: Taking taylor expansion of 0 in z
0.399 * [taylor]: Taking taylor expansion of 0 in z
0.402 * [taylor]: Taking taylor expansion of 0 in y
0.402 * [taylor]: Taking taylor expansion of 0 in z
0.403 * [taylor]: Taking taylor expansion of 0 in z
0.403 * [taylor]: Taking taylor expansion of 0 in z
0.403 * * * [progress]: simplifying candidates
0.404 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (/ (- x y) z))
  (log1p (/ (- x y) z))
  (- (log (- x y)) (log z))
  (log (/ (- x y) z))
  (exp (/ (- x y) z))
  (/ (* (* (- x y) (- x y)) (- x y)) (* (* z z) z))
  (* (cbrt (/ (- x y) z)) (cbrt (/ (- x y) z)))
  (cbrt (/ (- x y) z))
  (* (* (/ (- x y) z) (/ (- x y) z)) (/ (- x y) z))
  (sqrt (/ (- x y) z))
  (sqrt (/ (- x y) z))
  (- (- x y))
  (- z)
  (/ x z)
  (/ y z)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt z) (cbrt z)))
  (/ (cbrt (- x y)) (cbrt z))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt z))
  (/ (cbrt (- x y)) (sqrt z))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) 1)
  (/ (cbrt (- x y)) z)
  (/ (sqrt (- x y)) (* (cbrt z) (cbrt z)))
  (/ (sqrt (- x y)) (cbrt z))
  (/ (sqrt (- x y)) (sqrt z))
  (/ (sqrt (- x y)) (sqrt z))
  (/ (sqrt (- x y)) 1)
  (/ (sqrt (- x y)) z)
  (/ 1 (* (cbrt z) (cbrt z)))
  (/ (- x y) (cbrt z))
  (/ 1 (sqrt z))
  (/ (- x y) (sqrt z))
  (/ 1 1)
  (/ (- x y) z)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt z) (cbrt z)))
  (/ (- (sqrt x) (sqrt y)) (cbrt z))
  (/ (+ (sqrt x) (sqrt y)) (sqrt z))
  (/ (- (sqrt x) (sqrt y)) (sqrt z))
  (/ (+ (sqrt x) (sqrt y)) 1)
  (/ (- (sqrt x) (sqrt y)) z)
  (/ 1 (* (cbrt z) (cbrt z)))
  (/ (- x y) (cbrt z))
  (/ 1 (sqrt z))
  (/ (- x y) (sqrt z))
  (/ 1 1)
  (/ (- x y) z)
  (/ 1 z)
  (/ z (- x y))
  (/ (- x y) (* (cbrt z) (cbrt z)))
  (/ (- x y) (sqrt z))
  (/ (- x y) 1)
  (/ z (cbrt (- x y)))
  (/ z (sqrt (- x y)))
  (/ z (- x y))
  (/ z (- (sqrt x) (sqrt y)))
  (/ z (- x y))
  (* z (+ (* x x) (+ (* y y) (* x y))))
  (* z (+ x y))
  (- (/ x z) (/ y z))
  (- (/ x z) (/ y z))
  (- (/ x z) (/ y z))
0.408 * * [simplify]: iteration  0 :  160  enodes  (cost  202 )
0.412 * * [simplify]: iteration  1 :  447  enodes  (cost  192 )
0.420 * * [simplify]: iteration  2 :  1529  enodes  (cost  192 )
0.445 * * [simplify]: iteration  3 :  4891  enodes  (cost  191 )
0.517 * * [simplify]: iteration  4 :  5001  enodes  (cost  191 )
0.519 * [simplify]: Simplified to:
   (expm1 (/ (- x y) z))
  (log1p (/ (- x y) z))
  (log (/ (- x y) z))
  (log (/ (- x y) z))
  (exp (/ (- x y) z))
  (pow (/ (- x y) z) 3)
  (* (cbrt (/ (- x y) z)) (cbrt (/ (- x y) z)))
  (cbrt (/ (- x y) z))
  (pow (/ (- x y) z) 3)
  (sqrt (/ (- x y) z))
  (sqrt (/ (- x y) z))
  (- y x)
  (- z)
  (/ x z)
  (/ y z)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt z) (cbrt z)))
  (/ (cbrt (- x y)) (cbrt z))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt z))
  (/ (cbrt (- x y)) (sqrt z))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (cbrt (- x y)) z)
  (/ (sqrt (- x y)) (* (cbrt z) (cbrt z)))
  (/ (sqrt (- x y)) (cbrt z))
  (/ (sqrt (- x y)) (sqrt z))
  (/ (sqrt (- x y)) (sqrt z))
  (sqrt (- x y))
  (/ (sqrt (- x y)) z)
  (/ 1 (* (cbrt z) (cbrt z)))
  (/ (- x y) (cbrt z))
  (/ 1 (sqrt z))
  (/ (- x y) (sqrt z))
  1
  (/ (- x y) z)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt z) (cbrt z)))
  (/ (- (sqrt x) (sqrt y)) (cbrt z))
  (/ (+ (sqrt x) (sqrt y)) (sqrt z))
  (/ (- (sqrt x) (sqrt y)) (sqrt z))
  (+ (sqrt x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) z)
  (/ 1 (* (cbrt z) (cbrt z)))
  (/ (- x y) (cbrt z))
  (/ 1 (sqrt z))
  (/ (- x y) (sqrt z))
  1
  (/ (- x y) z)
  (/ 1 z)
  (/ z (- x y))
  (/ (- x y) (* (cbrt z) (cbrt z)))
  (/ (- x y) (sqrt z))
  (- x y)
  (/ z (cbrt (- x y)))
  (/ z (sqrt (- x y)))
  (/ z (- x y))
  (/ z (- (sqrt x) (sqrt y)))
  (/ z (- x y))
  (* (fma x x (fma y y (* x y))) z)
  (* z (+ x y))
  (/ (- x y) z)
  (/ (- x y) z)
  (/ (- x y) z)
0.519 * * * [progress]: adding candidates to table
0.624 * [progress]: [Phase 3 of 3] Extracting.
0.626 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (fma 4.0 (/ (- x y) z) (- 2.0))
0.627 * * [simplify]: iteration  0 :  9  enodes  (cost  4 )
0.627 * [simplify]: Simplified to:
   (fma 4.0 (/ (- x y) z) (- 2.0))
1.177 * [regime-testing]: End program error score: 0.007416168032865028
1.199 * [regime-testing]: Target error score: 0.008489422502263847