0.305 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.013 * * * [progress]: [2/2] Setting up program.
0.014 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying:
  (/ (+ x y) (- x y))
0.015 * * [simplify]: Extracting # 0 : cost  0
0.015 * * [simplify]: Extracting # 1 : cost  0
0.015 * * [simplify]: Extracting # 2 : cost  0
0.015 * * [simplify]: Extracting # 3 : cost  0
0.015 * * [simplify]: Extracting # 4 : cost  0
0.015 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.016 * * [simplify]: Extracting # 0 : cost  0
0.016 * * [simplify]: Extracting # 1 : cost  0
0.016 * * [simplify]: Extracting # 2 : cost  0
0.016 * * [simplify]: iteration  1 :  8  enodes  (cost  7 )
0.017 * * [simplify]: Extracting # 0 : cost  0
0.017 * * [simplify]: iteration  2 :  9  enodes  (cost  7 )
0.018 * * [simplify]: Extracting # 0 : cost  0
0.018 * * [simplify]: iteration done:  9  enodes  (cost  7 )
0.018 * [simplify]: Simplified to:
  (/ (+ x y) (- x y))
0.018 * * [progress]: iteration 1 / 4
0.018 * * * [progress]: picking best candidate
0.020 * * * * [pick]: Picked  #<alt (λ (x y) (/ (+ x y) (- x y)))>
0.020 * * * [progress]: localizing error
0.025 * * * [progress]: generating rewritten candidates
0.025 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.062 * * * [progress]: generating series expansions
0.062 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.063 * [backup-simplify]: Simplify (/ (+ x y) (- x y)) into (/ (+ x y) (- x y))
0.063 * [approximate]: Taking taylor expansion of (/ (+ x y) (- x y)) in (x y) around 0
0.063 * [taylor]: Taking taylor expansion of (/ (+ x y) (- x y)) in y
0.063 * [taylor]: Taking taylor expansion of (+ x y) in y
0.063 * [taylor]: Taking taylor expansion of x in y
0.063 * [backup-simplify]: Simplify x into x
0.063 * [taylor]: Taking taylor expansion of y in y
0.063 * [backup-simplify]: Simplify 0 into 0
0.063 * [backup-simplify]: Simplify 1 into 1
0.063 * [taylor]: Taking taylor expansion of (- x y) in y
0.063 * [taylor]: Taking taylor expansion of x in y
0.063 * [backup-simplify]: Simplify x into x
0.063 * [taylor]: Taking taylor expansion of y in y
0.063 * [backup-simplify]: Simplify 0 into 0
0.063 * [backup-simplify]: Simplify 1 into 1
0.063 * [backup-simplify]: Simplify (+ x 0) into x
0.063 * [backup-simplify]: Simplify (- 0) into 0
0.063 * [backup-simplify]: Simplify (+ x 0) into x
0.063 * [backup-simplify]: Simplify (/ x x) into 1
0.063 * [taylor]: Taking taylor expansion of (/ (+ x y) (- x y)) in x
0.063 * [taylor]: Taking taylor expansion of (+ x y) in x
0.063 * [taylor]: Taking taylor expansion of x in x
0.063 * [backup-simplify]: Simplify 0 into 0
0.063 * [backup-simplify]: Simplify 1 into 1
0.063 * [taylor]: Taking taylor expansion of y in x
0.063 * [backup-simplify]: Simplify y into y
0.064 * [taylor]: Taking taylor expansion of (- x y) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [backup-simplify]: Simplify 0 into 0
0.064 * [backup-simplify]: Simplify 1 into 1
0.064 * [taylor]: Taking taylor expansion of y in x
0.064 * [backup-simplify]: Simplify y into y
0.064 * [backup-simplify]: Simplify (+ 0 y) into y
0.064 * [backup-simplify]: Simplify (- y) into (- y)
0.064 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.064 * [backup-simplify]: Simplify (/ y (- y)) into -1
0.064 * [taylor]: Taking taylor expansion of (/ (+ x y) (- x y)) in x
0.064 * [taylor]: Taking taylor expansion of (+ x y) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [backup-simplify]: Simplify 0 into 0
0.064 * [backup-simplify]: Simplify 1 into 1
0.064 * [taylor]: Taking taylor expansion of y in x
0.064 * [backup-simplify]: Simplify y into y
0.064 * [taylor]: Taking taylor expansion of (- x y) in x
0.064 * [taylor]: Taking taylor expansion of x in x
0.064 * [backup-simplify]: Simplify 0 into 0
0.064 * [backup-simplify]: Simplify 1 into 1
0.064 * [taylor]: Taking taylor expansion of y in x
0.064 * [backup-simplify]: Simplify y into y
0.064 * [backup-simplify]: Simplify (+ 0 y) into y
0.064 * [backup-simplify]: Simplify (- y) into (- y)
0.064 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.064 * [backup-simplify]: Simplify (/ y (- y)) into -1
0.064 * [taylor]: Taking taylor expansion of -1 in y
0.064 * [backup-simplify]: Simplify -1 into -1
0.064 * [backup-simplify]: Simplify -1 into -1
0.065 * [backup-simplify]: Simplify (+ 1 0) into 1
0.065 * [backup-simplify]: Simplify (- 0) into 0
0.065 * [backup-simplify]: Simplify (+ 1 0) into 1
0.065 * [backup-simplify]: Simplify (- (/ 1 (- y)) (+ (* -1 (/ 1 (- y))))) into (- (* 2 (/ 1 y)))
0.065 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 y))) in y
0.065 * [taylor]: Taking taylor expansion of (* 2 (/ 1 y)) in y
0.065 * [taylor]: Taking taylor expansion of 2 in y
0.065 * [backup-simplify]: Simplify 2 into 2
0.065 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.065 * [taylor]: Taking taylor expansion of y in y
0.065 * [backup-simplify]: Simplify 0 into 0
0.065 * [backup-simplify]: Simplify 1 into 1
0.065 * [backup-simplify]: Simplify (/ 1 1) into 1
0.066 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.066 * [backup-simplify]: Simplify (+ (* 2 0) (* 0 1)) into 0
0.067 * [backup-simplify]: Simplify (- 0) into 0
0.067 * [backup-simplify]: Simplify 0 into 0
0.067 * [backup-simplify]: Simplify 0 into 0
0.067 * [backup-simplify]: Simplify (+ 0 0) into 0
0.067 * [backup-simplify]: Simplify (- 0) into 0
0.067 * [backup-simplify]: Simplify (+ 0 0) into 0