97.810 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.027 * * * [progress]: [2/2] Setting up program.
0.029 * [progress]: [Phase 2 of 3] Improving.
0.030 * [simplify]: Simplifying:
  (/ (- x y) (+ x y))
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: Extracting # 1 : cost  0
0.030 * * [simplify]: Extracting # 2 : cost  0
0.030 * * [simplify]: Extracting # 3 : cost  0
0.030 * * [simplify]: Extracting # 4 : cost  0
0.030 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.032 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.034 * * [simplify]: Extracting # 0 : cost  0
0.035 * * [simplify]: Extracting # 1 : cost  0
0.035 * * [simplify]: Extracting # 2 : cost  0
0.035 * * [simplify]: iteration  2 :  14  enodes  (cost  7 )
0.039 * * [simplify]: Extracting # 0 : cost  0
0.039 * * [simplify]: iteration  3 :  16  enodes  (cost  7 )
0.043 * * [simplify]: Extracting # 0 : cost  0
0.043 * * [simplify]: iteration done:  16  enodes  (cost  7 )
0.043 * [simplify]: Simplified to:
  (/ (- x y) (+ x y))
0.044 * * [progress]: iteration 1 / 4
0.044 * * * [progress]: picking best candidate
0.046 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (+ x y)))>
0.046 * * * [progress]: localizing error
0.056 * * * [progress]: generating rewritten candidates
0.056 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.104 * * * [progress]: generating series expansions
0.104 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.104 * [backup-simplify]: Simplify (/ (- x y) (+ x y)) into (/ (- x y) (+ x y))
0.104 * [approximate]: Taking taylor expansion of (/ (- x y) (+ x y)) in (x y) around 0
0.104 * [taylor]: Taking taylor expansion of (/ (- x y) (+ x y)) in y
0.104 * [taylor]: Taking taylor expansion of (- x y) in y
0.105 * [taylor]: Taking taylor expansion of x in y
0.105 * [backup-simplify]: Simplify x into x
0.105 * [taylor]: Taking taylor expansion of y in y
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 1 into 1
0.105 * [taylor]: Taking taylor expansion of (+ x y) in y
0.105 * [taylor]: Taking taylor expansion of x in y
0.105 * [backup-simplify]: Simplify x into x
0.105 * [taylor]: Taking taylor expansion of y in y
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 1 into 1
0.105 * [backup-simplify]: Simplify (- 0) into 0
0.105 * [backup-simplify]: Simplify (+ x 0) into x
0.106 * [backup-simplify]: Simplify (+ x 0) into x
0.106 * [backup-simplify]: Simplify (/ x x) into 1
0.106 * [taylor]: Taking taylor expansion of (/ (- x y) (+ x y)) in x
0.106 * [taylor]: Taking taylor expansion of (- x y) in x
0.106 * [taylor]: Taking taylor expansion of x in x
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify 1 into 1
0.106 * [taylor]: Taking taylor expansion of y in x
0.106 * [backup-simplify]: Simplify y into y
0.106 * [taylor]: Taking taylor expansion of (+ x y) in x
0.106 * [taylor]: Taking taylor expansion of x in x
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify 1 into 1
0.106 * [taylor]: Taking taylor expansion of y in x
0.106 * [backup-simplify]: Simplify y into y
0.106 * [backup-simplify]: Simplify (- y) into (- y)
0.106 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.106 * [backup-simplify]: Simplify (+ 0 y) into y
0.106 * [backup-simplify]: Simplify (/ (- y) y) into -1
0.106 * [taylor]: Taking taylor expansion of (/ (- x y) (+ x y)) in x
0.106 * [taylor]: Taking taylor expansion of (- x y) in x
0.106 * [taylor]: Taking taylor expansion of x in x
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify 1 into 1
0.106 * [taylor]: Taking taylor expansion of y in x
0.106 * [backup-simplify]: Simplify y into y
0.106 * [taylor]: Taking taylor expansion of (+ x y) in x
0.106 * [taylor]: Taking taylor expansion of x in x
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify 1 into 1
0.106 * [taylor]: Taking taylor expansion of y in x
0.106 * [backup-simplify]: Simplify y into y
0.107 * [backup-simplify]: Simplify (- y) into (- y)
0.107 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.107 * [backup-simplify]: Simplify (+ 0 y) into y
0.107 * [backup-simplify]: Simplify (/ (- y) y) into -1
0.107 * [taylor]: Taking taylor expansion of -1 in y
0.107 * [backup-simplify]: Simplify -1 into -1
0.107 * [backup-simplify]: Simplify -1 into -1
0.107 * [backup-simplify]: Simplify (- 0) into 0
0.108 * [backup-simplify]: Simplify (+ 1 0) into 1
0.108 * [backup-simplify]: Simplify (+ 1 0) into 1
0.108 * [backup-simplify]: Simplify (- (/ 1 y) (+ (* -1 (/ 1 y)))) into (* 2 (/ 1 y))
0.108 * [taylor]: Taking taylor expansion of (* 2 (/ 1 y)) in y
0.108 * [taylor]: Taking taylor expansion of 2 in y
0.108 * [backup-simplify]: Simplify 2 into 2
0.108 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.108 * [taylor]: Taking taylor expansion of y in y
0.109 * [backup-simplify]: Simplify 0 into 0
0.109 * [backup-simplify]: Simplify 1 into 1
0.109 * [backup-simplify]: Simplify (/ 1 1) into 1
0.110 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.110 * [backup-simplify]: Simplify (+ (* 2 0) (* 0 1)) into 0
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify (- 0) into 0
0.111 * [backup-simplify]: Simplify (+ 0 0) into 0
0.112 * [backup-simplify]: Simplify (+ 0 0) into 0