0.105 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.021 * [simplify]: Simplifying:
  (/ (- x y) (- 2.0 (+ x y)))
0.021 * * [simplify]: Extracting # 0 : cost  0
0.021 * * [simplify]: Extracting # 1 : cost  0
0.021 * * [simplify]: Extracting # 2 : cost  0
0.021 * * [simplify]: Extracting # 3 : cost  0
0.021 * * [simplify]: Extracting # 4 : cost  0
0.021 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
0.022 * * [simplify]: Extracting # 0 : cost  0
0.022 * * [simplify]: Extracting # 1 : cost  0
0.022 * * [simplify]: Extracting # 2 : cost  0
0.022 * * [simplify]: iteration  1 :  17  enodes  (cost  9 )
0.024 * * [simplify]: Extracting # 0 : cost  0
0.025 * * [simplify]: Extracting # 1 : cost  0
0.025 * * [simplify]: Extracting # 2 : cost  0
0.025 * * [simplify]: iteration  2 :  28  enodes  (cost  9 )
0.029 * * [simplify]: Extracting # 0 : cost  0
0.029 * * [simplify]: Extracting # 1 : cost  0
0.029 * * [simplify]: Extracting # 2 : cost  0
0.029 * * [simplify]: iteration  3 :  41  enodes  (cost  9 )
0.037 * * [simplify]: Extracting # 0 : cost  0
0.037 * * [simplify]: Extracting # 1 : cost  0
0.037 * * [simplify]: Extracting # 2 : cost  0
0.037 * * [simplify]: iteration  4 :  54  enodes  (cost  9 )
0.048 * * [simplify]: Extracting # 0 : cost  0
0.048 * * [simplify]: Extracting # 1 : cost  0
0.048 * * [simplify]: Extracting # 2 : cost  0
0.048 * * [simplify]: iteration  5 :  65  enodes  (cost  9 )
0.072 * * [simplify]: Extracting # 0 : cost  0
0.072 * * [simplify]: Extracting # 1 : cost  0
0.072 * * [simplify]: Extracting # 2 : cost  0
0.072 * * [simplify]: iteration  6 :  77  enodes  (cost  9 )
0.097 * * [simplify]: Extracting # 0 : cost  0
0.098 * * [simplify]: Extracting # 1 : cost  0
0.098 * * [simplify]: iteration  7 :  89  enodes  (cost  9 )
0.128 * * [simplify]: Extracting # 0 : cost  0
0.128 * * [simplify]: Extracting # 1 : cost  0
0.128 * * [simplify]: Extracting # 2 : cost  0
0.128 * * [simplify]: iteration  8 :  96  enodes  (cost  9 )
0.142 * * [simplify]: Extracting # 0 : cost  0
0.142 * * [simplify]: Extracting # 1 : cost  0
0.142 * * [simplify]: Extracting # 2 : cost  0
0.142 * * [simplify]: iteration  9 :  104  enodes  (cost  9 )
0.157 * * [simplify]: Extracting # 0 : cost  0
0.157 * * [simplify]: Extracting # 1 : cost  0
0.157 * * [simplify]: iteration  10 :  105  enodes  (cost  9 )
0.186 * * [simplify]: Extracting # 0 : cost  0
0.186 * * [simplify]: Extracting # 1 : cost  0
0.187 * * [simplify]: Extracting # 2 : cost  0
0.187 * * [simplify]: iteration  11 :  107  enodes  (cost  9 )
0.205 * * [simplify]: Extracting # 0 : cost  0
0.205 * * [simplify]: Extracting # 1 : cost  0
0.206 * * [simplify]: iteration  12 :  108  enodes  (cost  9 )
0.220 * * [simplify]: Extracting # 0 : cost  0
0.220 * * [simplify]: iteration done:  108  enodes  (cost  9 )
0.221 * [simplify]: Simplified to:
  (/ (- x y) (- 2.0 (+ x y)))
0.221 * * [progress]: iteration 1 / 4
0.221 * * * [progress]: picking best candidate
0.222 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (- 2.0 (+ x y))))>
0.222 * * * [progress]: localizing error
0.230 * * * [progress]: generating rewritten candidates
0.230 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.277 * * * [progress]: generating series expansions
0.277 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.277 * [backup-simplify]: Simplify (/ (- x y) (- 2.0 (+ x y))) into (/ (- x y) (- 2.0 (+ x y)))
0.277 * [approximate]: Taking taylor expansion of (/ (- x y) (- 2.0 (+ x y))) in (x y) around 0
0.277 * [taylor]: Taking taylor expansion of (/ (- x y) (- 2.0 (+ x y))) in y
0.277 * [taylor]: Taking taylor expansion of (- x y) in y
0.277 * [taylor]: Taking taylor expansion of x in y
0.277 * [backup-simplify]: Simplify x into x
0.277 * [taylor]: Taking taylor expansion of y in y
0.277 * [backup-simplify]: Simplify 0 into 0
0.277 * [backup-simplify]: Simplify 1 into 1
0.277 * [taylor]: Taking taylor expansion of (- 2.0 (+ x y)) in y
0.277 * [taylor]: Taking taylor expansion of 2.0 in y
0.277 * [backup-simplify]: Simplify 2.0 into 2.0
0.277 * [taylor]: Taking taylor expansion of (+ x y) in y
0.277 * [taylor]: Taking taylor expansion of x in y
0.277 * [backup-simplify]: Simplify x into x
0.277 * [taylor]: Taking taylor expansion of y in y
0.277 * [backup-simplify]: Simplify 0 into 0
0.277 * [backup-simplify]: Simplify 1 into 1
0.278 * [backup-simplify]: Simplify (- 0) into 0
0.278 * [backup-simplify]: Simplify (+ x 0) into x
0.278 * [backup-simplify]: Simplify (+ x 0) into x
0.278 * [backup-simplify]: Simplify (- x) into (- x)
0.278 * [backup-simplify]: Simplify (+ 2.0 (- x)) into (- 2.0 x)
0.278 * [backup-simplify]: Simplify (/ x (- 2.0 x)) into (/ x (- 2.0 x))
0.278 * [taylor]: Taking taylor expansion of (/ (- x y) (- 2.0 (+ x y))) in x
0.278 * [taylor]: Taking taylor expansion of (- x y) in x
0.278 * [taylor]: Taking taylor expansion of x in x
0.278 * [backup-simplify]: Simplify 0 into 0
0.278 * [backup-simplify]: Simplify 1 into 1
0.278 * [taylor]: Taking taylor expansion of y in x
0.278 * [backup-simplify]: Simplify y into y
0.278 * [taylor]: Taking taylor expansion of (- 2.0 (+ x y)) in x
0.278 * [taylor]: Taking taylor expansion of 2.0 in x
0.278 * [backup-simplify]: Simplify 2.0 into 2.0
0.278 * [taylor]: Taking taylor expansion of (+ x y) in x
0.278 * [taylor]: Taking taylor expansion of x in x
0.279 * [backup-simplify]: Simplify 0 into 0
0.279 * [backup-simplify]: Simplify 1 into 1
0.279 * [taylor]: Taking taylor expansion of y in x
0.279 * [backup-simplify]: Simplify y into y
0.279 * [backup-simplify]: Simplify (- y) into (- y)
0.279 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.279 * [backup-simplify]: Simplify (+ 0 y) into y
0.279 * [backup-simplify]: Simplify (- y) into (- y)
0.279 * [backup-simplify]: Simplify (+ 2.0 (- y)) into (- 2.0 y)
0.279 * [backup-simplify]: Simplify (/ (- y) (- 2.0 y)) into (* -1 (/ y (- 2.0 y)))
0.279 * [taylor]: Taking taylor expansion of (/ (- x y) (- 2.0 (+ x y))) in x
0.279 * [taylor]: Taking taylor expansion of (- x y) in x
0.279 * [taylor]: Taking taylor expansion of x in x
0.279 * [backup-simplify]: Simplify 0 into 0
0.279 * [backup-simplify]: Simplify 1 into 1
0.279 * [taylor]: Taking taylor expansion of y in x
0.279 * [backup-simplify]: Simplify y into y
0.279 * [taylor]: Taking taylor expansion of (- 2.0 (+ x y)) in x
0.279 * [taylor]: Taking taylor expansion of 2.0 in x
0.279 * [backup-simplify]: Simplify 2.0 into 2.0
0.279 * [taylor]: Taking taylor expansion of (+ x y) in x
0.279 * [taylor]: Taking taylor expansion of x in x
0.279 * [backup-simplify]: Simplify 0 into 0
0.279 * [backup-simplify]: Simplify 1 into 1
0.279 * [taylor]: Taking taylor expansion of y in x
0.279 * [backup-simplify]: Simplify y into y
0.279 * [backup-simplify]: Simplify (- y) into (- y)
0.279 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.279 * [backup-simplify]: Simplify (+ 0 y) into y
0.279 * [backup-simplify]: Simplify (- y) into (- y)
0.279 * [backup-simplify]: Simplify (+ 2.0 (- y)) into (- 2.0 y)
0.279 * [backup-simplify]: Simplify (/ (- y) (- 2.0 y)) into (* -1 (/ y (- 2.0 y)))
0.279 * [taylor]: Taking taylor expansion of (* -1 (/ y (- 2.0 y))) in y
0.279 * [taylor]: Taking taylor expansion of -1 in y
0.279 * [backup-simplify]: Simplify -1 into -1
0.279 * [taylor]: Taking taylor expansion of (/ y (- 2.0 y)) in y
0.279 * [taylor]: Taking taylor expansion of y in y
0.279 * [backup-simplify]: Simplify 0 into 0
0.280 * [backup-simplify]: Simplify 1 into 1
0.280 * [taylor]: Taking taylor expansion of (- 2.0 y) in y
0.280 * [taylor]: Taking taylor expansion of 2.0 in y
0.280 * [backup-simplify]: Simplify 2.0 into 2.0
0.280 * [taylor]: Taking taylor expansion of y in y
0.280 * [backup-simplify]: Simplify 0 into 0
0.280 * [backup-simplify]: Simplify 1 into 1
0.280 * [backup-simplify]: Simplify (- 0) into 0
0.280 * [backup-simplify]: Simplify (+ 2.0 0) into 2.0
0.280 * [backup-simplify]: Simplify (/ 1 2.0) into 0.5
0.281 * [backup-simplify]: Simplify (- 0) into 0
0.281 * [backup-simplify]: Simplify (+ 1 0) into 1
0.281 * [backup-simplify]: Simplify (+ 1 0) into 1
0.281 * [backup-simplify]: Simplify (- 1) into -1
0.282 * [backup-simplify]: Simplify (+ 0 -1) into -1
0.282 * [backup-simplify]: Simplify (- (/ 1 (- 2.0 y)) (+ (* (* -1 (/ y (- 2.0 y))) (/ -1 (- 2.0 y))))) into (- (/ 1 (- 2.0 y)) (/ y (pow (- 2.0 y) 2)))
0.282 * [taylor]: Taking taylor expansion of (- (/ 1 (- 2.0 y)) (/ y (pow (- 2.0 y) 2))) in y
0.282 * [taylor]: Taking taylor expansion of (/ 1 (- 2.0 y)) in y
0.282 * [taylor]: Taking taylor expansion of (- 2.0 y) in y
0.282 * [taylor]: Taking taylor expansion of 2.0 in y
0.282 * [backup-simplify]: Simplify 2.0 into 2.0
0.282 * [taylor]: Taking taylor expansion of y in y
0.282 * [backup-simplify]: Simplify 0 into 0
0.282 * [backup-simplify]: Simplify 1 into 1
0.282 * [backup-simplify]: Simplify (- 0) into 0
0.283 * [backup-simplify]: Simplify (+ 2.0 0) into 2.0
0.283 * [backup-simplify]: Simplify (/ 1 2.0) into 0.5
0.283 * [taylor]: Taking taylor expansion of (/ y (pow (- 2.0 y) 2)) in y
0.283 * [taylor]: Taking taylor expansion of y in y
0.283 * [backup-simplify]: Simplify 0 into 0
0.283 * [backup-simplify]: Simplify 1 into 1
0.283 * [taylor]: Taking taylor expansion of (pow (- 2.0 y) 2) in y
0.283 * [taylor]: Taking taylor expansion of (- 2.0 y) in y
0.283 * [taylor]: Taking taylor expansion of 2.0 in y
0.283 * [backup-simplify]: Simplify 2.0 into 2.0
0.283 * [taylor]: Taking taylor expansion of y in y
0.283 * [backup-simplify]: Simplify 0 into 0
0.283 * [backup-simplify]: Simplify 1 into 1
0.283 * [backup-simplify]: Simplify (- 0) into 0
0.284 * [backup-simplify]: Simplify (+ 2.0 0) into 2.0
0.284 * [backup-simplify]: Simplify (* 2.0 2.0) into 4.0
0.284 * [backup-simplify]: Simplify (/ 1 4.0) into 0.25
0.284 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
0.284 * [backup-simplify]: Simplify 0.5 into 0.5
0.285 * [backup-simplify]: Simplify (* -1 0.5) into -0.5
0.285 * [backup-simplify]: Simplify -0.5 into -0.5
0.285 * [backup-simplify]: Simplify (- 0) into 0
0.285 * [backup-simplify]: Simplify (+ 0 0) into 0
0.285 * [backup-simplify]: Simplify (+ 0 0) into 0
0.286 * [backup-simplify]: Simplify (- 0) into 0
0.286 * [backup-simplify]: Simplify (+ 0 0) into 0
0.286 * [backup-simplify]: Simplify (- (/ 0 (- 2.0 y)) (+ (* (* -1 (/ y (- 2.0 y))) (/ 0 (- 2.0 y))) (* (- (/ 1 (- 2.0 y)) (/ y (pow (- 2.0 y) 2))) (/ -1 (- 2.0 y))))) into (- (/ 1 (pow (- 2.0 y) 2)) (/ y (pow (- 2.0 y) 3)))
0.286 * [taylor]: Taking taylor expansion of (- (/ 1 (pow (- 2.0 y) 2)) (/ y (pow (- 2.0 y) 3))) in y
0.286 * [taylor]: Taking taylor expansion of (/ 1 (pow (- 2.0 y) 2)) in y
0.286 * [taylor]: Taking taylor expansion of (pow (- 2.0 y) 2) in y
0.286 * [taylor]: Taking taylor expansion of (- 2.0 y) in y
0.286 * [taylor]: Taking taylor expansion of 2.0 in y
0.286 * [backup-simplify]: Simplify 2.0 into 2.0
0.287 * [taylor]: Taking taylor expansion of y in y
0.287 * [backup-simplify]: Simplify 0 into 0
0.287 * [backup-simplify]: Simplify 1 into 1
0.287 * [backup-simplify]: Simplify (- 0) into 0
0.287 * [backup-simplify]: Simplify (+ 2.0 0) into 2.0
0.287 * [backup-simplify]: Simplify (* 2.0 2.0) into 4.0
0.288 * [backup-simplify]: Simplify (/ 1 4.0) into 0.25
0.288 * [taylor]: Taking taylor expansion of (/ y (pow (- 2.0 y) 3)) in y
0.288 * [taylor]: Taking taylor expansion of y in y
0.288 * [backup-simplify]: Simplify 0 into 0
0.288 * [backup-simplify]: Simplify 1 into 1
0.288 * [taylor]: Taking taylor expansion of (pow (- 2.0 y) 3) in y
0.288 * [taylor]: Taking taylor expansion of (- 2.0 y) in y
0.288 * [taylor]: Taking taylor expansion of 2.0 in y
0.288 * [backup-simplify]: Simplify 2.0 into 2.0
0.288 * [taylor]: Taking taylor expansion of y in y
0.288 * [backup-simplify]: Simplify 0 into 0
0.288 * [backup-simplify]: Simplify 1 into 1
0.288 * [backup-simplify]: Simplify (- 0) into 0
0.288 * [backup-simplify]: Simplify (+ 2.0 0) into 2.0
0.289 * [backup-simplify]: Simplify (* 2.0 2.0) into 4.0
0.289 * [backup-simplify]: Simplify (* 2.0 4.0) into 8.0
0.289 * [backup-simplify]: Simplify (/ 1 8.0) into 0.125
0.290 * [backup-simplify]: Simplify (+ 0.25 0) into 0.25
0.290 * [backup-simplify]: Simplify 0.25 into 0.25