4.314 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.042 * * * [progress]: [2/2] Setting up program.
0.045 * [progress]: [Phase 2 of 3] Improving.
0.046 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.046 * * [simplify]: Extracting # 0 : cost  0
0.046 * * [simplify]: Extracting # 1 : cost  0
0.046 * * [simplify]: Extracting # 2 : cost  0
0.046 * * [simplify]: Extracting # 3 : cost  0
0.046 * * [simplify]: Extracting # 4 : cost  0
0.046 * * [simplify]: Extracting # 5 : cost  0
0.046 * * [simplify]: iteration  0 :  9  enodes  (cost  9 )
0.049 * * [simplify]: Extracting # 0 : cost  0
0.049 * * [simplify]: Extracting # 1 : cost  0
0.049 * * [simplify]: Extracting # 2 : cost  0
0.050 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.053 * * [simplify]: Extracting # 0 : cost  0
0.054 * * [simplify]: Extracting # 1 : cost  0
0.054 * * [simplify]: Extracting # 2 : cost  0
0.054 * * [simplify]: iteration  2 :  21  enodes  (cost  9 )
0.060 * * [simplify]: Extracting # 0 : cost  0
0.060 * * [simplify]: Extracting # 1 : cost  0
0.060 * * [simplify]: Extracting # 2 : cost  0
0.060 * * [simplify]: iteration  3 :  25  enodes  (cost  9 )
0.068 * * [simplify]: Extracting # 0 : cost  0
0.068 * * [simplify]: iteration  4 :  28  enodes  (cost  9 )
0.076 * * [simplify]: Extracting # 0 : cost  0
0.076 * * [simplify]: iteration  5 :  29  enodes  (cost  9 )
0.085 * * [simplify]: Extracting # 0 : cost  0
0.085 * * [simplify]: iteration done:  29  enodes  (cost  9 )
0.085 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
0.085 * * [progress]: iteration 1 / 4
0.086 * * * [progress]: picking best candidate
0.088 * * * * [pick]: Picked  #<alt (λ (x y z) (- (/ (* x y) 2.0) (/ z 8.0)))>
0.088 * * * [progress]: localizing error
0.102 * * * [progress]: generating rewritten candidates
0.102 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.121 * * * [progress]: generating series expansions
0.121 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.121 * [backup-simplify]: Simplify (/ (* x y) 2.0) into (* 0.5 (* x y))
0.122 * [approximate]: Taking taylor expansion of (* 0.5 (* x y)) in (x y) around 0
0.122 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in y
0.122 * [taylor]: Taking taylor expansion of 0.5 in y
0.122 * [backup-simplify]: Simplify 0.5 into 0.5
0.122 * [taylor]: Taking taylor expansion of (* x y) in y
0.122 * [taylor]: Taking taylor expansion of x in y
0.122 * [backup-simplify]: Simplify x into x
0.122 * [taylor]: Taking taylor expansion of y in y
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 1 into 1
0.122 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.122 * [taylor]: Taking taylor expansion of 0.5 in x
0.122 * [backup-simplify]: Simplify 0.5 into 0.5
0.122 * [taylor]: Taking taylor expansion of (* x y) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 1 into 1
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [backup-simplify]: Simplify y into y
0.122 * [taylor]: Taking taylor expansion of (* 0.5 (* x y)) in x
0.122 * [taylor]: Taking taylor expansion of 0.5 in x
0.122 * [backup-simplify]: Simplify 0.5 into 0.5
0.122 * [taylor]: Taking taylor expansion of (* x y) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 1 into 1
0.122 * [taylor]: Taking taylor expansion of y in x
0.122 * [backup-simplify]: Simplify y into y
0.122 * [backup-simplify]: Simplify (* 0 y) into 0
0.123 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.123 * [taylor]: Taking taylor expansion of 0 in y
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.124 * [backup-simplify]: Simplify (+ (* 0.5 y) (* 0 0)) into (* 0.5 y)
0.124 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.124 * [taylor]: Taking taylor expansion of 0.5 in y
0.124 * [backup-simplify]: Simplify 0.5 into 0.5
0.124 * [taylor]: Taking taylor expansion of y in y
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.125 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.125 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.126 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 y) (* 0 0))) into 0
0.126 * [taylor]: Taking taylor expansion of 0 in y
0.126 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.128 * [backup-simplify]: Simplify 0.5 into 0.5
0.128 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.130 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 y) (* 0 0)))) into 0
0.130 * [taylor]: Taking taylor expansion of 0 in y
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify 0 into 0
0.131 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.131 * [backup-simplify]: Simplify 0 into 0
0.131 * [backup-simplify]: Simplify 0 into 0
0.133 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.134 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 y) (* 0 0))))) into 0
0.134 * [taylor]: Taking taylor expansion of 0 in y
0.134 * [backup-simplify]: Simplify 0 into 0
0.134 * [backup-simplify]: Simplify 0 into 0
0.134 * [backup-simplify]: Simplify (* 0.5 (* y x)) into (* 0.5 (* x y))
0.135 * [backup-simplify]: Simplify (/ (* (/ 1 x) (/ 1 y)) 2.0) into (/ 0.5 (* x y))
0.135 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.135 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.135 * [taylor]: Taking taylor expansion of 0.5 in y
0.135 * [backup-simplify]: Simplify 0.5 into 0.5
0.135 * [taylor]: Taking taylor expansion of (* x y) in y
0.135 * [taylor]: Taking taylor expansion of x in y
0.135 * [backup-simplify]: Simplify x into x
0.135 * [taylor]: Taking taylor expansion of y in y
0.135 * [backup-simplify]: Simplify 0 into 0
0.135 * [backup-simplify]: Simplify 1 into 1
0.135 * [backup-simplify]: Simplify (* x 0) into 0
0.135 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.135 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.135 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.135 * [taylor]: Taking taylor expansion of 0.5 in x
0.135 * [backup-simplify]: Simplify 0.5 into 0.5
0.136 * [taylor]: Taking taylor expansion of (* x y) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 1 into 1
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [backup-simplify]: Simplify y into y
0.136 * [backup-simplify]: Simplify (* 0 y) into 0
0.136 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.136 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.136 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.136 * [taylor]: Taking taylor expansion of 0.5 in x
0.136 * [backup-simplify]: Simplify 0.5 into 0.5
0.136 * [taylor]: Taking taylor expansion of (* x y) in x
0.136 * [taylor]: Taking taylor expansion of x in x
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 1 into 1
0.136 * [taylor]: Taking taylor expansion of y in x
0.136 * [backup-simplify]: Simplify y into y
0.136 * [backup-simplify]: Simplify (* 0 y) into 0
0.137 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.137 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.137 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.137 * [taylor]: Taking taylor expansion of 0.5 in y
0.137 * [backup-simplify]: Simplify 0.5 into 0.5
0.137 * [taylor]: Taking taylor expansion of y in y
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 1 into 1
0.138 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.138 * [backup-simplify]: Simplify 0.5 into 0.5
0.138 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.138 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.139 * [taylor]: Taking taylor expansion of 0 in y
0.139 * [backup-simplify]: Simplify 0 into 0
0.139 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.139 * [backup-simplify]: Simplify 0 into 0
0.140 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.141 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.141 * [backup-simplify]: Simplify 0 into 0
0.141 * [backup-simplify]: Simplify 0 into 0
0.142 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.142 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.143 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.143 * [taylor]: Taking taylor expansion of 0 in y
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify 0 into 0
0.144 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.144 * [backup-simplify]: Simplify 0 into 0
0.144 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))) into (* 0.5 (* x y))
0.145 * [backup-simplify]: Simplify (/ (* (/ 1 (- x)) (/ 1 (- y))) 2.0) into (/ 0.5 (* x y))
0.145 * [approximate]: Taking taylor expansion of (/ 0.5 (* x y)) in (x y) around 0
0.145 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in y
0.145 * [taylor]: Taking taylor expansion of 0.5 in y
0.145 * [backup-simplify]: Simplify 0.5 into 0.5
0.145 * [taylor]: Taking taylor expansion of (* x y) in y
0.145 * [taylor]: Taking taylor expansion of x in y
0.145 * [backup-simplify]: Simplify x into x
0.145 * [taylor]: Taking taylor expansion of y in y
0.145 * [backup-simplify]: Simplify 0 into 0
0.145 * [backup-simplify]: Simplify 1 into 1
0.145 * [backup-simplify]: Simplify (* x 0) into 0
0.145 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.145 * [backup-simplify]: Simplify (/ 0.5 x) into (/ 0.5 x)
0.145 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.145 * [taylor]: Taking taylor expansion of 0.5 in x
0.145 * [backup-simplify]: Simplify 0.5 into 0.5
0.145 * [taylor]: Taking taylor expansion of (* x y) in x
0.146 * [taylor]: Taking taylor expansion of x in x
0.146 * [backup-simplify]: Simplify 0 into 0
0.146 * [backup-simplify]: Simplify 1 into 1
0.146 * [taylor]: Taking taylor expansion of y in x
0.146 * [backup-simplify]: Simplify y into y
0.146 * [backup-simplify]: Simplify (* 0 y) into 0
0.146 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.146 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.146 * [taylor]: Taking taylor expansion of (/ 0.5 (* x y)) in x
0.146 * [taylor]: Taking taylor expansion of 0.5 in x
0.146 * [backup-simplify]: Simplify 0.5 into 0.5
0.146 * [taylor]: Taking taylor expansion of (* x y) in x
0.146 * [taylor]: Taking taylor expansion of x in x
0.146 * [backup-simplify]: Simplify 0 into 0
0.146 * [backup-simplify]: Simplify 1 into 1
0.146 * [taylor]: Taking taylor expansion of y in x
0.146 * [backup-simplify]: Simplify y into y
0.146 * [backup-simplify]: Simplify (* 0 y) into 0
0.147 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.147 * [backup-simplify]: Simplify (/ 0.5 y) into (/ 0.5 y)
0.147 * [taylor]: Taking taylor expansion of (/ 0.5 y) in y
0.147 * [taylor]: Taking taylor expansion of 0.5 in y
0.147 * [backup-simplify]: Simplify 0.5 into 0.5
0.147 * [taylor]: Taking taylor expansion of y in y
0.147 * [backup-simplify]: Simplify 0 into 0
0.147 * [backup-simplify]: Simplify 1 into 1
0.147 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.147 * [backup-simplify]: Simplify 0.5 into 0.5
0.148 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.148 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)))) into 0
0.148 * [taylor]: Taking taylor expansion of 0 in y
0.148 * [backup-simplify]: Simplify 0 into 0
0.149 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)))) into 0
0.149 * [backup-simplify]: Simplify 0 into 0
0.150 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.150 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.151 * [taylor]: Taking taylor expansion of 0 in y
0.151 * [backup-simplify]: Simplify 0 into 0
0.151 * [backup-simplify]: Simplify 0 into 0
0.152 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.152 * [backup-simplify]: Simplify 0 into 0
0.153 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.153 * [backup-simplify]: Simplify (- (/ 0 y) (+ (* (/ 0.5 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.153 * [taylor]: Taking taylor expansion of 0 in y
0.153 * [backup-simplify]: Simplify 0 into 0
0.153 * [backup-simplify]: Simplify 0 into 0
0.153 * [backup-simplify]: Simplify 0 into 0
0.154 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.154 * [backup-simplify]: Simplify 0 into 0
0.155 * [backup-simplify]: Simplify (* 0.5 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))) into (* 0.5 (* x y))
0.155 * * * [progress]: simplifying candidates
0.155 * [simplify]: Simplifying:
  (expm1 (/ (* x y) 2.0))
  (log1p (/ (* x y) 2.0))
  (- (+ (log x) (log y)) (log 2.0))
  (- (log (* x y)) (log 2.0))
  (log (/ (* x y) 2.0))
  (exp (/ (* x y) 2.0))
  (/ (* (* (* x x) x) (* (* y y) y)) (* (* 2.0 2.0) 2.0))
  (/ (* (* (* x y) (* x y)) (* x y)) (* (* 2.0 2.0) 2.0))
  (* (cbrt (/ (* x y) 2.0)) (cbrt (/ (* x y) 2.0)))
  (cbrt (/ (* x y) 2.0))
  (* (* (/ (* x y) 2.0) (/ (* x y) 2.0)) (/ (* x y) 2.0))
  (sqrt (/ (* x y) 2.0))
  (sqrt (/ (* x y) 2.0))
  (- (* x y))
  (- 2.0)
  (/ x (* (cbrt 2.0) (cbrt 2.0)))
  (/ y (cbrt 2.0))
  (/ x (sqrt 2.0))
  (/ y (sqrt 2.0))
  (/ x 1)
  (/ y 2.0)
  (/ 1 2.0)
  (/ 2.0 (* x y))
  (/ (* x y) (* (cbrt 2.0) (cbrt 2.0)))
  (/ (* x y) (sqrt 2.0))
  (/ (* x y) 1)
  (/ 2.0 y)
  (* 0.5 (* x y))
  (* 0.5 (* x y))
  (* 0.5 (* x y))
0.156 * * [simplify]: Extracting # 0 : cost  0
0.156 * * [simplify]: Extracting # 1 : cost  0
0.157 * * [simplify]: Extracting # 2 : cost  0
0.157 * * [simplify]: Extracting # 3 : cost  0
0.157 * * [simplify]: Extracting # 4 : cost  0
0.157 * * [simplify]: Extracting # 5 : cost  0
0.157 * * [simplify]: Extracting # 6 : cost  0
0.157 * * [simplify]: iteration  0 :  52  enodes  (cost  198 )
0.188 * * [simplify]: Extracting # 0 : cost  0
0.189 * * [simplify]: Extracting # 1 : cost  0
0.189 * * [simplify]: Extracting # 2 : cost  0
0.189 * * [simplify]: iteration  1 :  117  enodes  (cost  191 )
0.228 * * [simplify]: Extracting # 0 : cost  0
0.229 * * [simplify]: Extracting # 1 : cost  0
0.229 * * [simplify]: Extracting # 2 : cost  0
0.230 * * [simplify]: Extracting # 3 : cost  0
0.230 * * [simplify]: Extracting # 4 : cost  0
0.230 * * [simplify]: iteration  2 :  404  enodes  (cost  161 )
0.803 * * [simplify]: Extracting # 0 : cost  0
0.807 * * [simplify]: Extracting # 1 : cost  0
0.811 * * [simplify]: Extracting # 2 : cost  0
0.814 * * [simplify]: Extracting # 3 : cost  0
0.817 * * [simplify]: Extracting # 4 : cost  0
0.820 * * [simplify]: iteration  3 :  1814  enodes  (cost  161 )
4.026 * * [simplify]: Extracting # 0 : cost  0
4.037 * * [simplify]: Extracting # 1 : cost  0
4.042 * * [simplify]: Extracting # 2 : cost  0
4.050 * * [simplify]: Extracting # 3 : cost  0
4.055 * * [simplify]: Extracting # 4 : cost  0
4.061 * * [simplify]: Extracting # 5 : cost  0
4.069 * * [simplify]: iteration done:  5000  enodes  (cost  161 )
4.070 * [simplify]: Simplified to:
  (expm1 (/ (* x y) 2.0))
  (log1p (/ (* x y) 2.0))
  (log (/ (* x y) 2.0))
  (log (/ (* x y) 2.0))
  (log (/ (* x y) 2.0))
  (exp (/ (* x y) 2.0))
  (pow (/ (* x y) 2.0) 3)
  (pow (/ (* x y) 2.0) 3)
  (* (cbrt (/ (* x y) 2.0)) (cbrt (/ (* x y) 2.0)))
  (cbrt (/ (* x y) 2.0))
  (pow (/ (* x y) 2.0) 3)
  (sqrt (/ (* x y) 2.0))
  (sqrt (/ (* x y) 2.0))
  (- (* x y))
  (- 2.0)
  (/ x (* (cbrt 2.0) (cbrt 2.0)))
  (/ y (cbrt 2.0))
  (/ x (sqrt 2.0))
  (/ y (sqrt 2.0))
  x
  (/ y 2.0)
  (/ 1 2.0)
  (/ 2.0 (* x y))
  (/ (* x y) (* (cbrt 2.0) (cbrt 2.0)))
  (/ (* x y) (sqrt 2.0))
  (* x y)
  (/ 2.0 y)
  (* 0.5 (* x y))
  (* 0.5 (* x y))
  (* 0.5 (* x y))
4.070 * * * [progress]: adding candidates to table
4.150 * [progress]: [Phase 3 of 3] Extracting.
4.153 * [simplify]: Simplifying:
  (- (/ (* x y) 2.0) (/ z 8.0))
4.153 * * [simplify]: Extracting # 0 : cost  0
4.153 * * [simplify]: Extracting # 1 : cost  0
4.153 * * [simplify]: Extracting # 2 : cost  0
4.153 * * [simplify]: Extracting # 3 : cost  0
4.153 * * [simplify]: Extracting # 4 : cost  0
4.153 * * [simplify]: Extracting # 5 : cost  0
4.153 * * [simplify]: iteration  0 :  9  enodes  (cost  9 )
4.154 * * [simplify]: Extracting # 0 : cost  0
4.154 * * [simplify]: iteration  1 :  10  enodes  (cost  9 )
4.154 * * [simplify]: Extracting # 0 : cost  0
4.154 * * [simplify]: iteration done:  10  enodes  (cost  9 )
4.154 * [simplify]: Simplified to:
  (- (/ (* x y) 2.0) (/ z 8.0))
5.104 * [regime-testing]: End program error score: 0.0315770674460209