7.089 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.025 * [progress]: [Phase 2 of 3] Improving.
0.025 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (* 4.0 (- (- x y) (* z 0.5))) z)
0.028 * * [simplify]: iteration  0 :  20  enodes  (cost  5 )
0.030 * * [simplify]: iteration  1 :  47  enodes  (cost  5 )
0.032 * * [simplify]: iteration  2 :  146  enodes  (cost  5 )
0.035 * * [simplify]: iteration  3 :  356  enodes  (cost  5 )
0.041 * * [simplify]: iteration  4 :  750  enodes  (cost  5 )
0.051 * * [simplify]: iteration  5 :  1604  enodes  (cost  5 )
0.067 * * [simplify]: iteration  6 :  2577  enodes  (cost  5 )
0.093 * * [simplify]: iteration  7 :  5001  enodes  (cost  4 )
0.093 * [simplify]: Simplified to:
   (* (/ 4.0 z) (- x (fma 0.5 z y)))
0.096 * * [progress]: iteration 1 / 4
0.096 * * * [progress]: picking best candidate
0.099 * * * * [pick]: Picked  #<alt (λ (x y z) (/ (* 4.0 (- (- x y) (* z 0.5))) z))>
0.099 * * * [progress]: localizing error
0.107 * * * [progress]: generating rewritten candidates
0.107 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.145 * * * [progress]: generating series expansions
0.145 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.145 * [approximate]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in (x y z) around 0
0.146 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in z
0.146 * [taylor]: Taking taylor expansion of 4.0 in z
0.146 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in z
0.146 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in z
0.146 * [taylor]: Taking taylor expansion of x in z
0.146 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in z
0.146 * [taylor]: Taking taylor expansion of (* 0.5 z) in z
0.146 * [taylor]: Taking taylor expansion of 0.5 in z
0.146 * [taylor]: Taking taylor expansion of z in z
0.146 * [taylor]: Taking taylor expansion of y in z
0.146 * [taylor]: Taking taylor expansion of z in z
0.146 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in y
0.146 * [taylor]: Taking taylor expansion of 4.0 in y
0.146 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in y
0.146 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in y
0.146 * [taylor]: Taking taylor expansion of x in y
0.147 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in y
0.147 * [taylor]: Taking taylor expansion of (* 0.5 z) in y
0.147 * [taylor]: Taking taylor expansion of 0.5 in y
0.147 * [taylor]: Taking taylor expansion of z in y
0.147 * [taylor]: Taking taylor expansion of y in y
0.147 * [taylor]: Taking taylor expansion of z in y
0.147 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in x
0.147 * [taylor]: Taking taylor expansion of 4.0 in x
0.147 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in x
0.147 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in x
0.147 * [taylor]: Taking taylor expansion of (* 0.5 z) in x
0.147 * [taylor]: Taking taylor expansion of 0.5 in x
0.147 * [taylor]: Taking taylor expansion of z in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of z in x
0.147 * [taylor]: Taking taylor expansion of (* 4.0 (/ (- x (+ (* 0.5 z) y)) z)) in x
0.147 * [taylor]: Taking taylor expansion of 4.0 in x
0.147 * [taylor]: Taking taylor expansion of (/ (- x (+ (* 0.5 z) y)) z) in x
0.147 * [taylor]: Taking taylor expansion of (- x (+ (* 0.5 z) y)) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in x
0.147 * [taylor]: Taking taylor expansion of (* 0.5 z) in x
0.147 * [taylor]: Taking taylor expansion of 0.5 in x
0.147 * [taylor]: Taking taylor expansion of z in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of z in x
0.148 * [taylor]: Taking taylor expansion of (* -4.0 (/ (+ (* 0.5 z) y) z)) in y
0.148 * [taylor]: Taking taylor expansion of -4.0 in y
0.148 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 z) y) z) in y
0.148 * [taylor]: Taking taylor expansion of (+ (* 0.5 z) y) in y
0.148 * [taylor]: Taking taylor expansion of (* 0.5 z) in y
0.148 * [taylor]: Taking taylor expansion of 0.5 in y
0.148 * [taylor]: Taking taylor expansion of z in y
0.148 * [taylor]: Taking taylor expansion of y in y
0.148 * [taylor]: Taking taylor expansion of z in y
0.148 * [taylor]: Taking taylor expansion of -2.0 in z
0.150 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in y
0.150 * [taylor]: Taking taylor expansion of 4.0 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 (/ 4.0 z) in z
0.150 * [taylor]: Taking taylor expansion of 4.0 in z
0.150 * [taylor]: Taking taylor expansion of z in z
0.151 * [taylor]: Taking taylor expansion of (- (* 4.0 (/ 1 z))) in z
0.151 * [taylor]: Taking taylor expansion of (* 4.0 (/ 1 z)) in z
0.151 * [taylor]: Taking taylor expansion of 4.0 in z
0.151 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.151 * [taylor]: Taking taylor expansion of z in z
0.153 * [approximate]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in (x y z) around 0
0.153 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in z
0.153 * [taylor]: Taking taylor expansion of 4.0 in z
0.153 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in z
0.153 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in z
0.153 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.153 * [taylor]: Taking taylor expansion of x in z
0.153 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in z
0.153 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in z
0.153 * [taylor]: Taking taylor expansion of 0.5 in z
0.153 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.153 * [taylor]: Taking taylor expansion of z in z
0.153 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.153 * [taylor]: Taking taylor expansion of y in z
0.153 * [taylor]: Taking taylor expansion of z in z
0.153 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in y
0.153 * [taylor]: Taking taylor expansion of 4.0 in y
0.153 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in y
0.153 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in y
0.153 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.153 * [taylor]: Taking taylor expansion of x in y
0.153 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in y
0.153 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in y
0.153 * [taylor]: Taking taylor expansion of 0.5 in y
0.153 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.154 * [taylor]: Taking taylor expansion of z in y
0.154 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.154 * [taylor]: Taking taylor expansion of y in y
0.154 * [taylor]: Taking taylor expansion of z in y
0.154 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in x
0.154 * [taylor]: Taking taylor expansion of 4.0 in x
0.154 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in x
0.154 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in x
0.154 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.154 * [taylor]: Taking taylor expansion of x in x
0.154 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.154 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.154 * [taylor]: Taking taylor expansion of 0.5 in x
0.154 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.154 * [taylor]: Taking taylor expansion of z in x
0.154 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.154 * [taylor]: Taking taylor expansion of y in x
0.154 * [taylor]: Taking taylor expansion of z in x
0.154 * [taylor]: Taking taylor expansion of (* 4.0 (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z)) in x
0.154 * [taylor]: Taking taylor expansion of 4.0 in x
0.154 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) z) in x
0.154 * [taylor]: Taking taylor expansion of (- (/ 1 x) (+ (* 0.5 (/ 1 z)) (/ 1 y))) in x
0.154 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.154 * [taylor]: Taking taylor expansion of x in x
0.155 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.155 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.155 * [taylor]: Taking taylor expansion of 0.5 in x
0.155 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.155 * [taylor]: Taking taylor expansion of z in x
0.155 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.155 * [taylor]: Taking taylor expansion of y in x
0.155 * [taylor]: Taking taylor expansion of z in x
0.155 * [taylor]: Taking taylor expansion of (* 4.0 z) in y
0.155 * [taylor]: Taking taylor expansion of 4.0 in y
0.155 * [taylor]: Taking taylor expansion of z in y
0.157 * [taylor]: Taking taylor expansion of (- (+ (* 4.0 (/ z y)) 2.0)) in y
0.157 * [taylor]: Taking taylor expansion of (+ (* 4.0 (/ z y)) 2.0) in y
0.157 * [taylor]: Taking taylor expansion of (* 4.0 (/ z y)) in y
0.157 * [taylor]: Taking taylor expansion of 4.0 in y
0.157 * [taylor]: Taking taylor expansion of (/ z y) in y
0.157 * [taylor]: Taking taylor expansion of z in y
0.157 * [taylor]: Taking taylor expansion of y in y
0.157 * [taylor]: Taking taylor expansion of 2.0 in y
0.157 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.157 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.157 * [taylor]: Taking taylor expansion of 4.0 in z
0.157 * [taylor]: Taking taylor expansion of z in z
0.157 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.157 * [taylor]: Taking taylor expansion of 4.0 in z
0.157 * [taylor]: Taking taylor expansion of z in z
0.159 * [taylor]: Taking taylor expansion of 0 in y
0.161 * [taylor]: Taking taylor expansion of (- 2.0) in z
0.161 * [taylor]: Taking taylor expansion of 2.0 in z
0.161 * [taylor]: Taking taylor expansion of 0 in z
0.165 * [taylor]: Taking taylor expansion of 0 in y
0.165 * [taylor]: Taking taylor expansion of 0 in z
0.166 * [taylor]: Taking taylor expansion of 0 in z
0.167 * [taylor]: Taking taylor expansion of 0 in z
0.171 * [approximate]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in (x y z) around 0
0.171 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in z
0.171 * [taylor]: Taking taylor expansion of -4.0 in z
0.171 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in z
0.171 * [taylor]: Taking taylor expansion of z in z
0.171 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in z
0.171 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in z
0.171 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in z
0.171 * [taylor]: Taking taylor expansion of 0.5 in z
0.171 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.171 * [taylor]: Taking taylor expansion of z in z
0.171 * [taylor]: Taking taylor expansion of (/ 1 y) in z
0.171 * [taylor]: Taking taylor expansion of y in z
0.171 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.171 * [taylor]: Taking taylor expansion of x in z
0.171 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in y
0.171 * [taylor]: Taking taylor expansion of -4.0 in y
0.171 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in y
0.171 * [taylor]: Taking taylor expansion of z in y
0.171 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in y
0.171 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in y
0.171 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in y
0.171 * [taylor]: Taking taylor expansion of 0.5 in y
0.171 * [taylor]: Taking taylor expansion of (/ 1 z) in y
0.171 * [taylor]: Taking taylor expansion of z in y
0.171 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.171 * [taylor]: Taking taylor expansion of y in y
0.172 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.172 * [taylor]: Taking taylor expansion of x in y
0.172 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in x
0.172 * [taylor]: Taking taylor expansion of -4.0 in x
0.172 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in x
0.172 * [taylor]: Taking taylor expansion of z in x
0.172 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in x
0.172 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.172 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.172 * [taylor]: Taking taylor expansion of 0.5 in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.172 * [taylor]: Taking taylor expansion of z in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.172 * [taylor]: Taking taylor expansion of y in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.172 * [taylor]: Taking taylor expansion of x in x
0.172 * [taylor]: Taking taylor expansion of (* -4.0 (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)))) in x
0.172 * [taylor]: Taking taylor expansion of -4.0 in x
0.172 * [taylor]: Taking taylor expansion of (* z (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x))) in x
0.172 * [taylor]: Taking taylor expansion of z in x
0.172 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 z)) (/ 1 y)) (/ 1 x)) in x
0.172 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 z)) (/ 1 y)) in x
0.172 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in x
0.172 * [taylor]: Taking taylor expansion of 0.5 in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 z) in x
0.172 * [taylor]: Taking taylor expansion of z in x
0.172 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.173 * [taylor]: Taking taylor expansion of y in x
0.173 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.173 * [taylor]: Taking taylor expansion of x in x
0.173 * [taylor]: Taking taylor expansion of (* 4.0 z) in y
0.173 * [taylor]: Taking taylor expansion of 4.0 in y
0.173 * [taylor]: Taking taylor expansion of z in y
0.175 * [taylor]: Taking taylor expansion of (- (+ (* 4.0 (/ z y)) 2.0)) in y
0.175 * [taylor]: Taking taylor expansion of (+ (* 4.0 (/ z y)) 2.0) in y
0.175 * [taylor]: Taking taylor expansion of (* 4.0 (/ z y)) in y
0.175 * [taylor]: Taking taylor expansion of 4.0 in y
0.175 * [taylor]: Taking taylor expansion of (/ z y) in y
0.175 * [taylor]: Taking taylor expansion of z in y
0.175 * [taylor]: Taking taylor expansion of y in y
0.175 * [taylor]: Taking taylor expansion of 2.0 in y
0.175 * [taylor]: Taking taylor expansion of (- (* 4.0 z)) in z
0.175 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.175 * [taylor]: Taking taylor expansion of 4.0 in z
0.175 * [taylor]: Taking taylor expansion of z in z
0.175 * [taylor]: Taking taylor expansion of (* 4.0 z) in z
0.175 * [taylor]: Taking taylor expansion of 4.0 in z
0.175 * [taylor]: Taking taylor expansion of z in z
0.177 * [taylor]: Taking taylor expansion of 0 in y
0.179 * [taylor]: Taking taylor expansion of (- 2.0) in z
0.179 * [taylor]: Taking taylor expansion of 2.0 in z
0.179 * [taylor]: Taking taylor expansion of 0 in z
0.183 * [taylor]: Taking taylor expansion of 0 in y
0.183 * [taylor]: Taking taylor expansion of 0 in z
0.185 * [taylor]: Taking taylor expansion of 0 in z
0.185 * [taylor]: Taking taylor expansion of 0 in z
0.189 * * * [progress]: simplifying candidates
0.189 * [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))
0.195 * * [simplify]: iteration  0 :  193  enodes  (cost  201 )
0.200 * * [simplify]: iteration  1 :  818  enodes  (cost  168 )
0.221 * * [simplify]: iteration  2 :  4419  enodes  (cost  164 )
0.292 * * [simplify]: iteration  3 :  5001  enodes  (cost  163 )
0.293 * [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))
0.293 * * * [progress]: adding candidates to table
0.349 * * [progress]: iteration 2 / 4
0.349 * * * [progress]: picking best candidate
0.350 * * * * [pick]: Picked  #<alt (λ (x y z) (fma 4.0 (/ (- x y) z) (- 2.0)))>
0.350 * * * [progress]: localizing error
0.361 * * * [progress]: generating rewritten candidates
0.361 * * * [progress]: generating series expansions
0.361 * * * [progress]: simplifying candidates
0.361 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.364 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.364 * [simplify]: Simplified to:
   
0.364 * * * [progress]: adding candidates to table
0.364 * [progress]: [Phase 3 of 3] Extracting.
0.366 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (fma 4.0 (/ (- x y) z) (- 2.0))
0.367 * * [simplify]: iteration  0 :  9  enodes  (cost  4 )
0.368 * [simplify]: Simplified to:
   (fma 4.0 (/ (- x y) z) (- 2.0))
1.115 * [regime-testing]: End program error score: 0.007250906363295412
1.136 * [regime-testing]: Target error score: 0.007875984498062257