40.868 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.022 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) t)
0.025 * * [simplify]: iteration  0 :  24  enodes  (cost  6 )
0.027 * * [simplify]: iteration  1 :  46  enodes  (cost  6 )
0.028 * * [simplify]: iteration  2 :  73  enodes  (cost  6 )
0.030 * * [simplify]: iteration  3 :  99  enodes  (cost  6 )
0.032 * * [simplify]: iteration  4 :  119  enodes  (cost  6 )
0.034 * * [simplify]: iteration  5 :  145  enodes  (cost  6 )
0.036 * * [simplify]: iteration  6 :  178  enodes  (cost  6 )
0.039 * * [simplify]: iteration  7 :  253  enodes  (cost  6 )
0.043 * * [simplify]: iteration  8 :  333  enodes  (cost  6 )
0.047 * * [simplify]: iteration  9 :  467  enodes  (cost  6 )
0.050 * * [simplify]: iteration  10 :  467  enodes  (cost  6 )
0.050 * [simplify]: Simplified to:
   (+ (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) t)
0.051 * * [progress]: iteration 1 / 4
0.051 * * * [progress]: picking best candidate
0.053 * * * * [pick]: Picked  #<alt (λ (x y z t) (+ (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) t))>
0.053 * * * [progress]: localizing error
0.062 * * * [progress]: generating rewritten candidates
0.062 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.068 * * * [progress]: generating series expansions
0.068 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.069 * [approximate]: Taking taylor expansion of (- (* 0.125 x) (* 0.5 (* z y))) in (x y z) around 0
0.069 * [taylor]: Taking taylor expansion of (- (* 0.125 x) (* 0.5 (* z y))) in z
0.069 * [taylor]: Taking taylor expansion of (* 0.125 x) in z
0.069 * [taylor]: Taking taylor expansion of 0.125 in z
0.069 * [taylor]: Taking taylor expansion of x in z
0.069 * [taylor]: Taking taylor expansion of (* 0.5 (* z y)) in z
0.069 * [taylor]: Taking taylor expansion of 0.5 in z
0.069 * [taylor]: Taking taylor expansion of (* z y) in z
0.069 * [taylor]: Taking taylor expansion of z in z
0.069 * [taylor]: Taking taylor expansion of y in z
0.069 * [taylor]: Taking taylor expansion of (- (* 0.125 x) (* 0.5 (* z y))) in y
0.069 * [taylor]: Taking taylor expansion of (* 0.125 x) in y
0.069 * [taylor]: Taking taylor expansion of 0.125 in y
0.069 * [taylor]: Taking taylor expansion of x in y
0.069 * [taylor]: Taking taylor expansion of (* 0.5 (* z y)) in y
0.069 * [taylor]: Taking taylor expansion of 0.5 in y
0.069 * [taylor]: Taking taylor expansion of (* z y) in y
0.069 * [taylor]: Taking taylor expansion of z in y
0.069 * [taylor]: Taking taylor expansion of y in y
0.069 * [taylor]: Taking taylor expansion of (- (* 0.125 x) (* 0.5 (* z y))) in x
0.069 * [taylor]: Taking taylor expansion of (* 0.125 x) in x
0.069 * [taylor]: Taking taylor expansion of 0.125 in x
0.069 * [taylor]: Taking taylor expansion of x in x
0.069 * [taylor]: Taking taylor expansion of (* 0.5 (* z y)) in x
0.069 * [taylor]: Taking taylor expansion of 0.5 in x
0.069 * [taylor]: Taking taylor expansion of (* z y) in x
0.069 * [taylor]: Taking taylor expansion of z in x
0.069 * [taylor]: Taking taylor expansion of y in x
0.069 * [taylor]: Taking taylor expansion of (- (* 0.125 x) (* 0.5 (* z y))) in x
0.069 * [taylor]: Taking taylor expansion of (* 0.125 x) in x
0.069 * [taylor]: Taking taylor expansion of 0.125 in x
0.069 * [taylor]: Taking taylor expansion of x in x
0.069 * [taylor]: Taking taylor expansion of (* 0.5 (* z y)) in x
0.069 * [taylor]: Taking taylor expansion of 0.5 in x
0.069 * [taylor]: Taking taylor expansion of (* z y) in x
0.069 * [taylor]: Taking taylor expansion of z in x
0.069 * [taylor]: Taking taylor expansion of y in x
0.070 * [taylor]: Taking taylor expansion of (- (* 0.5 (* z y))) in y
0.070 * [taylor]: Taking taylor expansion of (* 0.5 (* z y)) in y
0.070 * [taylor]: Taking taylor expansion of 0.5 in y
0.070 * [taylor]: Taking taylor expansion of (* z y) in y
0.070 * [taylor]: Taking taylor expansion of z in y
0.070 * [taylor]: Taking taylor expansion of y in y
0.070 * [taylor]: Taking taylor expansion of 0 in z
0.072 * [taylor]: Taking taylor expansion of 0.125 in y
0.072 * [taylor]: Taking taylor expansion of 0.125 in z
0.073 * [taylor]: Taking taylor expansion of (- (* 0.5 z)) in z
0.073 * [taylor]: Taking taylor expansion of (* 0.5 z) in z
0.073 * [taylor]: Taking taylor expansion of 0.5 in z
0.073 * [taylor]: Taking taylor expansion of z in z
0.075 * [taylor]: Taking taylor expansion of 0 in y
0.075 * [taylor]: Taking taylor expansion of 0 in z
0.075 * [taylor]: Taking taylor expansion of 0 in z
0.076 * [taylor]: Taking taylor expansion of 0 in z
0.077 * [approximate]: Taking taylor expansion of (- (* 0.125 (/ 1 x)) (* 0.5 (/ 1 (* z y)))) in (x y z) around 0
0.077 * [taylor]: Taking taylor expansion of (- (* 0.125 (/ 1 x)) (* 0.5 (/ 1 (* z y)))) in z
0.077 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in z
0.077 * [taylor]: Taking taylor expansion of 0.125 in z
0.077 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.077 * [taylor]: Taking taylor expansion of x in z
0.077 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in z
0.077 * [taylor]: Taking taylor expansion of 0.5 in z
0.077 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.077 * [taylor]: Taking taylor expansion of (* z y) in z
0.077 * [taylor]: Taking taylor expansion of z in z
0.077 * [taylor]: Taking taylor expansion of y in z
0.077 * [taylor]: Taking taylor expansion of (- (* 0.125 (/ 1 x)) (* 0.5 (/ 1 (* z y)))) in y
0.077 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in y
0.077 * [taylor]: Taking taylor expansion of 0.125 in y
0.077 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.077 * [taylor]: Taking taylor expansion of x in y
0.077 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in y
0.077 * [taylor]: Taking taylor expansion of 0.5 in y
0.077 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.078 * [taylor]: Taking taylor expansion of (* z y) in y
0.078 * [taylor]: Taking taylor expansion of z in y
0.078 * [taylor]: Taking taylor expansion of y in y
0.078 * [taylor]: Taking taylor expansion of (- (* 0.125 (/ 1 x)) (* 0.5 (/ 1 (* z y)))) in x
0.078 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in x
0.078 * [taylor]: Taking taylor expansion of 0.125 in x
0.078 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.078 * [taylor]: Taking taylor expansion of x in x
0.078 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in x
0.078 * [taylor]: Taking taylor expansion of 0.5 in x
0.078 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.078 * [taylor]: Taking taylor expansion of (* z y) in x
0.078 * [taylor]: Taking taylor expansion of z in x
0.078 * [taylor]: Taking taylor expansion of y in x
0.078 * [taylor]: Taking taylor expansion of (- (* 0.125 (/ 1 x)) (* 0.5 (/ 1 (* z y)))) in x
0.078 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in x
0.078 * [taylor]: Taking taylor expansion of 0.125 in x
0.078 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.078 * [taylor]: Taking taylor expansion of x in x
0.079 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in x
0.079 * [taylor]: Taking taylor expansion of 0.5 in x
0.079 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.079 * [taylor]: Taking taylor expansion of (* z y) in x
0.079 * [taylor]: Taking taylor expansion of z in x
0.079 * [taylor]: Taking taylor expansion of y in x
0.079 * [taylor]: Taking taylor expansion of 0.125 in y
0.080 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 (* z y)))) in y
0.080 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in y
0.080 * [taylor]: Taking taylor expansion of 0.5 in y
0.081 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.081 * [taylor]: Taking taylor expansion of (* z y) in y
0.081 * [taylor]: Taking taylor expansion of z in y
0.081 * [taylor]: Taking taylor expansion of y in y
0.081 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 z))) in z
0.081 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in z
0.081 * [taylor]: Taking taylor expansion of 0.5 in z
0.081 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.081 * [taylor]: Taking taylor expansion of z in z
0.082 * [taylor]: Taking taylor expansion of 0.125 in z
0.084 * [taylor]: Taking taylor expansion of 0 in y
0.085 * [taylor]: Taking taylor expansion of 0 in z
0.085 * [taylor]: Taking taylor expansion of 0 in z
0.089 * [taylor]: Taking taylor expansion of 0 in y
0.089 * [taylor]: Taking taylor expansion of 0 in z
0.090 * [taylor]: Taking taylor expansion of 0 in z
0.090 * [taylor]: Taking taylor expansion of 0 in z
0.094 * [taylor]: Taking taylor expansion of 0 in y
0.094 * [taylor]: Taking taylor expansion of 0 in z
0.094 * [taylor]: Taking taylor expansion of 0 in z
0.096 * [taylor]: Taking taylor expansion of 0 in z
0.096 * [taylor]: Taking taylor expansion of 0 in z
0.097 * [approximate]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x)))) in (x y z) around 0
0.097 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x)))) in z
0.097 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x))) in z
0.097 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in z
0.097 * [taylor]: Taking taylor expansion of 0.5 in z
0.097 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in z
0.097 * [taylor]: Taking taylor expansion of (* z y) in z
0.097 * [taylor]: Taking taylor expansion of z in z
0.097 * [taylor]: Taking taylor expansion of y in z
0.097 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in z
0.097 * [taylor]: Taking taylor expansion of 0.125 in z
0.097 * [taylor]: Taking taylor expansion of (/ 1 x) in z
0.097 * [taylor]: Taking taylor expansion of x in z
0.097 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x)))) in y
0.097 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x))) in y
0.097 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in y
0.098 * [taylor]: Taking taylor expansion of 0.5 in y
0.098 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.098 * [taylor]: Taking taylor expansion of (* z y) in y
0.098 * [taylor]: Taking taylor expansion of z in y
0.098 * [taylor]: Taking taylor expansion of y in y
0.098 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in y
0.098 * [taylor]: Taking taylor expansion of 0.125 in y
0.098 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.098 * [taylor]: Taking taylor expansion of x in y
0.098 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x)))) in x
0.098 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x))) in x
0.098 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in x
0.098 * [taylor]: Taking taylor expansion of 0.5 in x
0.098 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.098 * [taylor]: Taking taylor expansion of (* z y) in x
0.098 * [taylor]: Taking taylor expansion of z in x
0.098 * [taylor]: Taking taylor expansion of y in x
0.098 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in x
0.098 * [taylor]: Taking taylor expansion of 0.125 in x
0.098 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.098 * [taylor]: Taking taylor expansion of (- (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x)))) in x
0.099 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 (* z y))) (* 0.125 (/ 1 x))) in x
0.099 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in x
0.099 * [taylor]: Taking taylor expansion of 0.5 in x
0.099 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in x
0.099 * [taylor]: Taking taylor expansion of (* z y) in x
0.099 * [taylor]: Taking taylor expansion of z in x
0.099 * [taylor]: Taking taylor expansion of y in x
0.099 * [taylor]: Taking taylor expansion of (* 0.125 (/ 1 x)) in x
0.099 * [taylor]: Taking taylor expansion of 0.125 in x
0.099 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.099 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (- 0.125) in y
0.100 * [taylor]: Taking taylor expansion of 0.125 in y
0.101 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 (* z y)))) in y
0.101 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (* z y))) in y
0.101 * [taylor]: Taking taylor expansion of 0.5 in y
0.101 * [taylor]: Taking taylor expansion of (/ 1 (* z y)) in y
0.101 * [taylor]: Taking taylor expansion of (* z y) in y
0.101 * [taylor]: Taking taylor expansion of z in y
0.101 * [taylor]: Taking taylor expansion of y in y
0.101 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 z))) in z
0.101 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 z)) in z
0.101 * [taylor]: Taking taylor expansion of 0.5 in z
0.101 * [taylor]: Taking taylor expansion of (/ 1 z) in z
0.101 * [taylor]: Taking taylor expansion of z in z
0.103 * [taylor]: Taking taylor expansion of (- 0.125) in z
0.103 * [taylor]: Taking taylor expansion of 0.125 in z
0.105 * [taylor]: Taking taylor expansion of 0 in y
0.106 * [taylor]: Taking taylor expansion of 0 in z
0.106 * [taylor]: Taking taylor expansion of 0 in z
0.113 * [taylor]: Taking taylor expansion of 0 in y
0.113 * [taylor]: Taking taylor expansion of 0 in z
0.114 * [taylor]: Taking taylor expansion of 0 in z
0.115 * [taylor]: Taking taylor expansion of 0 in z
0.119 * [taylor]: Taking taylor expansion of 0 in y
0.119 * [taylor]: Taking taylor expansion of 0 in z
0.119 * [taylor]: Taking taylor expansion of 0 in z
0.121 * [taylor]: Taking taylor expansion of 0 in z
0.121 * [taylor]: Taking taylor expansion of 0 in z
0.122 * * * [progress]: simplifying candidates
0.122 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp (* (/ 1.0 8.0) x)) (exp (/ (* y z) 2.0)))
  (log (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (exp (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (* (cbrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0))) (cbrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0))))
  (cbrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (* (* (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0))) (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (sqrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (sqrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (- (* (* 1.0 x) 2.0) (* 8.0 (* y z)))
  (* 8.0 2.0)
  (- (pow (* (/ 1.0 8.0) x) 3) (pow (/ (* y z) 2.0) 3))
  (+ (* (* (/ 1.0 8.0) x) (* (/ 1.0 8.0) x)) (+ (* (/ (* y z) 2.0) (/ (* y z) 2.0)) (* (* (/ 1.0 8.0) x) (/ (* y z) 2.0))))
  (- (/ (* y z) 2.0))
  (- (* (* (/ 1.0 8.0) x) (* (/ 1.0 8.0) x)) (* (/ (* y z) 2.0) (/ (* y z) 2.0)))
  (+ (* (/ 1.0 8.0) x) (/ (* y z) 2.0))
  (- (/ (* y z) 2.0))
  (* 0.125 x)
  (- (* 0.125 x) (* 0.5 (* z y)))
  (- (* 0.125 x) (* 0.5 (* z y)))
0.126 * * [simplify]: iteration  0 :  113  enodes  (cost  124 )
0.128 * * [simplify]: iteration  1 :  385  enodes  (cost  113 )
0.136 * * [simplify]: iteration  2 :  1527  enodes  (cost  113 )
0.162 * * [simplify]: iteration  3 :  5002  enodes  (cost  113 )
0.163 * [simplify]: Simplified to:
   (exp (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (log (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (exp (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (* (cbrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0))) (cbrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0))))
  (cbrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (pow (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) 3)
  (sqrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (sqrt (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)))
  (- (* (* 1.0 x) 2.0) (* 8.0 (* y z)))
  (* 8.0 2.0)
  (- (pow (* (/ 1.0 8.0) x) 3) (pow (/ (* y z) 2.0) 3))
  (+ (* (/ (* y z) 2.0) (+ (/ (* y z) 2.0) (* (/ 1.0 8.0) x))) (* (* (/ 1.0 8.0) x) (* (/ 1.0 8.0) x)))
  (- (/ (* y z) 2.0))
  (- (* (* (/ 1.0 8.0) x) (* (/ 1.0 8.0) x)) (* (/ (* y z) 2.0) (/ (* y z) 2.0)))
  (+ (* (/ 1.0 8.0) x) (/ (* y z) 2.0))
  (- (/ (* y z) 2.0))
  (* 0.125 x)
  (- (* 0.125 x) (* 0.5 (* z y)))
  (- (* 0.125 x) (* 0.5 (* z y)))
0.163 * * * [progress]: adding candidates to table
0.199 * [progress]: [Phase 3 of 3] Extracting.
0.203 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) t)
0.203 * * [simplify]: iteration  0 :  16  enodes  (cost  6 )
0.203 * * [simplify]: iteration  1 :  16  enodes  (cost  6 )
0.204 * [simplify]: Simplified to:
   (+ (- (* (/ 1.0 8.0) x) (/ (* y z) 2.0)) t)
0.801 * [regime-testing]: End program error score: 0.04620389579956509
0.822 * [regime-testing]: Target error score: 0.006073879547533586