29.106 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (* 4.0 (- (- x y) (* z 0.5))) z)
0.024 * * [simplify]: iteration  0 :  10  enodes  (cost  11 )
0.025 * * [simplify]: iteration  1 :  20  enodes  (cost  11 )
0.028 * * [simplify]: iteration  2 :  47  enodes  (cost  11 )
0.035 * * [simplify]: iteration  3 :  138  enodes  (cost  10 )
0.055 * * [simplify]: iteration  4 :  319  enodes  (cost  10 )
0.116 * * [simplify]: iteration  5 :  688  enodes  (cost  10 )
0.278 * * [simplify]: iteration  6 :  1316  enodes  (cost  10 )
0.707 * * [simplify]: iteration  7 :  2272  enodes  (cost  9 )
2.551 * * [simplify]: iteration  8 :  4564  enodes  (cost  9 )
9.157 * * [simplify]: iteration  done :  5001  enodes  (cost  9 )
9.157 * [simplify]: Simplified to:
   (* (- (/ (- x y) z) 0.5) 4.0)
9.160 * * [progress]: iteration 1 / 4
9.160 * * * [progress]: picking best candidate
9.162 * * * * [pick]: Picked  #<alt (λ (x y z) (* (- (/ (- x y) z) 0.5) 4.0))>
9.162 * * * [progress]: localizing error
9.168 * * * [progress]: generating rewritten candidates
9.168 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1 1)
9.178 * * * [progress]: generating series expansions
9.178 * * * * [progress]: [ 1 / 1 ] generating series at (2 1 1)
9.179 * [approximate]: Taking taylor expansion of (/ (- x y) z) in (x y z) around 0
9.179 * [taylor]: Taking taylor expansion of (/ (- x y) z) in z
9.179 * [taylor]: Taking taylor expansion of (- x y) in z
9.179 * [taylor]: Taking taylor expansion of x in z
9.179 * [taylor]: Taking taylor expansion of y in z
9.179 * [taylor]: Taking taylor expansion of z in z
9.179 * [taylor]: Taking taylor expansion of (/ (- x y) z) in y
9.179 * [taylor]: Taking taylor expansion of (- x y) in y
9.179 * [taylor]: Taking taylor expansion of x in y
9.179 * [taylor]: Taking taylor expansion of y in y
9.179 * [taylor]: Taking taylor expansion of z in y
9.179 * [taylor]: Taking taylor expansion of (/ (- x y) z) in x
9.179 * [taylor]: Taking taylor expansion of (- x y) in x
9.179 * [taylor]: Taking taylor expansion of x in x
9.179 * [taylor]: Taking taylor expansion of y in x
9.179 * [taylor]: Taking taylor expansion of z in x
9.180 * [taylor]: Taking taylor expansion of (/ (- x y) z) in x
9.180 * [taylor]: Taking taylor expansion of (- x y) in x
9.180 * [taylor]: Taking taylor expansion of x in x
9.180 * [taylor]: Taking taylor expansion of y in x
9.180 * [taylor]: Taking taylor expansion of z in x
9.180 * [taylor]: Taking taylor expansion of (* -1 (/ y z)) in y
9.180 * [taylor]: Taking taylor expansion of -1 in y
9.180 * [taylor]: Taking taylor expansion of (/ y z) in y
9.180 * [taylor]: Taking taylor expansion of y in y
9.180 * [taylor]: Taking taylor expansion of z in y
9.181 * [taylor]: Taking taylor expansion of (/ 1 z) in y
9.181 * [taylor]: Taking taylor expansion of z in y
9.181 * [taylor]: Taking taylor expansion of (/ 1 z) in z
9.181 * [taylor]: Taking taylor expansion of z in z
9.181 * [taylor]: Taking taylor expansion of (/ -1 z) in z
9.181 * [taylor]: Taking taylor expansion of -1 in z
9.181 * [taylor]: Taking taylor expansion of z in z
9.182 * [taylor]: Taking taylor expansion of 0 in y
9.182 * [taylor]: Taking taylor expansion of 0 in z
9.182 * [taylor]: Taking taylor expansion of 0 in z
9.182 * [taylor]: Taking taylor expansion of 0 in z
9.184 * [taylor]: Taking taylor expansion of 0 in y
9.184 * [taylor]: Taking taylor expansion of 0 in z
9.184 * [taylor]: Taking taylor expansion of 0 in z
9.184 * [taylor]: Taking taylor expansion of 0 in z
9.185 * [taylor]: Taking taylor expansion of 0 in z
9.186 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in (x y z) around 0
9.186 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in z
9.186 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in z
9.186 * [taylor]: Taking taylor expansion of (/ 1 x) in z
9.186 * [taylor]: Taking taylor expansion of x in z
9.186 * [taylor]: Taking taylor expansion of (/ 1 y) in z
9.186 * [taylor]: Taking taylor expansion of y in z
9.186 * [taylor]: Taking taylor expansion of z in z
9.186 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in y
9.186 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
9.186 * [taylor]: Taking taylor expansion of (/ 1 x) in y
9.186 * [taylor]: Taking taylor expansion of x in y
9.186 * [taylor]: Taking taylor expansion of (/ 1 y) in y
9.186 * [taylor]: Taking taylor expansion of y in y
9.186 * [taylor]: Taking taylor expansion of z in y
9.186 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in x
9.186 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
9.186 * [taylor]: Taking taylor expansion of (/ 1 x) in x
9.186 * [taylor]: Taking taylor expansion of x in x
9.187 * [taylor]: Taking taylor expansion of (/ 1 y) in x
9.187 * [taylor]: Taking taylor expansion of y in x
9.187 * [taylor]: Taking taylor expansion of z in x
9.187 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) z) in x
9.187 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
9.187 * [taylor]: Taking taylor expansion of (/ 1 x) in x
9.187 * [taylor]: Taking taylor expansion of x in x
9.187 * [taylor]: Taking taylor expansion of (/ 1 y) in x
9.187 * [taylor]: Taking taylor expansion of y in x
9.187 * [taylor]: Taking taylor expansion of z in x
9.187 * [taylor]: Taking taylor expansion of z in y
9.188 * [taylor]: Taking taylor expansion of (- (/ z y)) in y
9.188 * [taylor]: Taking taylor expansion of (/ z y) in y
9.188 * [taylor]: Taking taylor expansion of z in y
9.188 * [taylor]: Taking taylor expansion of y in y
9.188 * [taylor]: Taking taylor expansion of (- z) in z
9.188 * [taylor]: Taking taylor expansion of z in z
9.189 * [taylor]: Taking taylor expansion of z in z
9.190 * [taylor]: Taking taylor expansion of 0 in y
9.191 * [taylor]: Taking taylor expansion of 0 in z
9.191 * [taylor]: Taking taylor expansion of 0 in z
9.193 * [taylor]: Taking taylor expansion of 0 in y
9.193 * [taylor]: Taking taylor expansion of 0 in z
9.194 * [taylor]: Taking taylor expansion of 0 in z
9.194 * [taylor]: Taking taylor expansion of 0 in z
9.195 * [approximate]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in (x y z) around 0
9.195 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in z
9.195 * [taylor]: Taking taylor expansion of -1 in z
9.195 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in z
9.195 * [taylor]: Taking taylor expansion of z in z
9.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in z
9.195 * [taylor]: Taking taylor expansion of (/ 1 y) in z
9.195 * [taylor]: Taking taylor expansion of y in z
9.195 * [taylor]: Taking taylor expansion of (/ 1 x) in z
9.195 * [taylor]: Taking taylor expansion of x in z
9.195 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in y
9.195 * [taylor]: Taking taylor expansion of -1 in y
9.195 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in y
9.195 * [taylor]: Taking taylor expansion of z in y
9.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
9.195 * [taylor]: Taking taylor expansion of (/ 1 y) in y
9.195 * [taylor]: Taking taylor expansion of y in y
9.195 * [taylor]: Taking taylor expansion of (/ 1 x) in y
9.195 * [taylor]: Taking taylor expansion of x in y
9.195 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in x
9.195 * [taylor]: Taking taylor expansion of -1 in x
9.195 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in x
9.195 * [taylor]: Taking taylor expansion of z in x
9.195 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
9.195 * [taylor]: Taking taylor expansion of (/ 1 y) in x
9.195 * [taylor]: Taking taylor expansion of y in x
9.195 * [taylor]: Taking taylor expansion of (/ 1 x) in x
9.196 * [taylor]: Taking taylor expansion of x in x
9.196 * [taylor]: Taking taylor expansion of (* -1 (* z (- (/ 1 y) (/ 1 x)))) in x
9.196 * [taylor]: Taking taylor expansion of -1 in x
9.196 * [taylor]: Taking taylor expansion of (* z (- (/ 1 y) (/ 1 x))) in x
9.196 * [taylor]: Taking taylor expansion of z in x
9.196 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
9.196 * [taylor]: Taking taylor expansion of (/ 1 y) in x
9.196 * [taylor]: Taking taylor expansion of y in x
9.196 * [taylor]: Taking taylor expansion of (/ 1 x) in x
9.196 * [taylor]: Taking taylor expansion of x in x
9.197 * [taylor]: Taking taylor expansion of z in y
9.198 * [taylor]: Taking taylor expansion of (- (/ z y)) in y
9.198 * [taylor]: Taking taylor expansion of (/ z y) in y
9.198 * [taylor]: Taking taylor expansion of z in y
9.198 * [taylor]: Taking taylor expansion of y in y
9.198 * [taylor]: Taking taylor expansion of (- z) in z
9.198 * [taylor]: Taking taylor expansion of z in z
9.198 * [taylor]: Taking taylor expansion of z in z
9.200 * [taylor]: Taking taylor expansion of 0 in y
9.201 * [taylor]: Taking taylor expansion of 0 in z
9.201 * [taylor]: Taking taylor expansion of 0 in z
9.203 * [taylor]: Taking taylor expansion of 0 in y
9.203 * [taylor]: Taking taylor expansion of 0 in z
9.204 * [taylor]: Taking taylor expansion of 0 in z
9.204 * [taylor]: Taking taylor expansion of 0 in z
9.205 * * * [progress]: simplifying candidates
9.206 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (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))
9.208 * * [simplify]: iteration  0 :  75  enodes  (cost  416 )
9.218 * * [simplify]: iteration  1 :  160  enodes  (cost  394 )
9.247 * * [simplify]: iteration  2 :  431  enodes  (cost  374 )
9.350 * * [simplify]: iteration  3 :  1377  enodes  (cost  374 )
9.909 * * [simplify]: iteration  4 :  3601  enodes  (cost  373 )
11.340 * * [simplify]: iteration  done :  5001  enodes  (cost  373 )
11.341 * [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 y) (sqrt x))
  (/ (- (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 (* y (+ x y))) z)
  (* z (+ x y))
  (/ (- x y) z)
  (/ (- x y) z)
  (/ (- x y) z)
11.341 * * * [progress]: adding candidates to table
11.436 * [progress]: [Phase 3 of 3] Extracting.
11.438 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (- (/ (- x y) z) 0.5) 4.0)
11.438 * * [simplify]: iteration  0 :  9  enodes  (cost  9 )
11.439 * * [simplify]: iteration  1 :  10  enodes  (cost  9 )
11.439 * * [simplify]: iteration  done :  10  enodes  (cost  9 )
11.439 * [simplify]: Simplified to:
   (* (- (/ (- x y) z) 0.5) 4.0)
11.996 * [regime-testing]: End program error score: 0.007416168032865028
12.020 * [regime-testing]: Target error score: 0.008489422502263847