28.254 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.028 * * * [progress]: [2/2] Setting up program.
0.031 * [progress]: [Phase 2 of 3] Improving.
0.031 * [simplify]: Simplifying:
  (/ (- x y) x)
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.032 * * [simplify]: Extracting # 2 : cost  0
0.032 * * [simplify]: Extracting # 3 : cost  0
0.032 * * [simplify]: Extracting # 4 : cost  0
0.032 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.033 * * [simplify]: Extracting # 0 : cost  0
0.033 * * [simplify]: Extracting # 1 : cost  0
0.033 * * [simplify]: Extracting # 2 : cost  0
0.033 * * [simplify]: iteration  1 :  9  enodes  (cost  5 )
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: Extracting # 1 : cost  0
0.036 * * [simplify]: Extracting # 2 : cost  0
0.036 * * [simplify]: iteration  2 :  13  enodes  (cost  5 )
0.041 * * [simplify]: Extracting # 0 : cost  0
0.041 * * [simplify]: iteration  3 :  17  enodes  (cost  5 )
0.045 * * [simplify]: Extracting # 0 : cost  0
0.045 * * [simplify]: iteration done:  17  enodes  (cost  5 )
0.045 * [simplify]: Simplified to:
  (/ (- x y) x)
0.045 * * [progress]: iteration 1 / 4
0.045 * * * [progress]: picking best candidate
0.047 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) x))>
0.048 * * * [progress]: localizing error
0.056 * * * [progress]: generating rewritten candidates
0.056 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.095 * * * [progress]: generating series expansions
0.095 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.095 * [backup-simplify]: Simplify (/ (- x y) x) into (/ (- x y) x)
0.095 * [approximate]: Taking taylor expansion of (/ (- x y) x) in (x y) around 0
0.095 * [taylor]: Taking taylor expansion of (/ (- x y) x) in y
0.095 * [taylor]: Taking taylor expansion of (- x y) in y
0.095 * [taylor]: Taking taylor expansion of x in y
0.095 * [backup-simplify]: Simplify x into x
0.095 * [taylor]: Taking taylor expansion of y in y
0.095 * [backup-simplify]: Simplify 0 into 0
0.095 * [backup-simplify]: Simplify 1 into 1
0.095 * [taylor]: Taking taylor expansion of x in y
0.095 * [backup-simplify]: Simplify x into x
0.103 * [backup-simplify]: Simplify (- 0) into 0
0.103 * [backup-simplify]: Simplify (+ x 0) into x
0.103 * [backup-simplify]: Simplify (/ x x) into 1
0.103 * [taylor]: Taking taylor expansion of (/ (- x y) x) in x
0.103 * [taylor]: Taking taylor expansion of (- x y) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [taylor]: Taking taylor expansion of y in x
0.104 * [backup-simplify]: Simplify y into y
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [backup-simplify]: Simplify (- y) into (- y)
0.104 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.104 * [backup-simplify]: Simplify (/ (- y) 1) into (* -1 y)
0.104 * [taylor]: Taking taylor expansion of (/ (- x y) x) in x
0.104 * [taylor]: Taking taylor expansion of (- x y) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [taylor]: Taking taylor expansion of y in x
0.104 * [backup-simplify]: Simplify y into y
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [backup-simplify]: Simplify (- y) into (- y)
0.104 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
0.104 * [backup-simplify]: Simplify (/ (- y) 1) into (* -1 y)
0.104 * [taylor]: Taking taylor expansion of (* -1 y) in y
0.104 * [taylor]: Taking taylor expansion of -1 in y
0.104 * [backup-simplify]: Simplify -1 into -1
0.104 * [taylor]: Taking taylor expansion of y in y
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.105 * [backup-simplify]: Simplify (* -1 0) into 0
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify (- 0) into 0
0.106 * [backup-simplify]: Simplify (+ 1 0) into 1
0.106 * [backup-simplify]: Simplify (- (/ 1 1) (+ (* (* -1 y) (/ 0 1)))) into 1
0.106 * [taylor]: Taking taylor expansion of 1 in y
0.106 * [backup-simplify]: Simplify 1 into 1
0.106 * [backup-simplify]: Simplify 1 into 1
0.107 * [backup-simplify]: Simplify (+ (* -1 1) (* 0 0)) into -1
0.107 * [backup-simplify]: Simplify -1 into -1
0.107 * [backup-simplify]: Simplify (- 0) into 0
0.107 * [backup-simplify]: Simplify (+ 0 0) into 0
0.108 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (* -1 y) (/ 0 1)) (* 1 (/ 0 1)))) into 0
0.108 * [taylor]: Taking taylor expansion of 0 in y
0.108 * [backup-simplify]: Simplify 0 into 0
0.108 * [backup-simplify]: Simplify 0 into 0
0.108 * [backup-simplify]: Simplify 0 into 0
0.109 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 1) (* 0 0))) into 0
0.109 * [backup-simplify]: Simplify 0 into 0
0.109 * [backup-simplify]: Simplify (- 0) into 0
0.109 * [backup-simplify]: Simplify (+ 0 0) into 0
0.110 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* (* -1 y) (/ 0 1)) (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.110 * [taylor]: Taking taylor expansion of 0 in y
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify (+ (* -1 (* y (/ 1 x))) 1) into (- 1 (/ y x))
0.111 * [backup-simplify]: Simplify (/ (- (/ 1 x) (/ 1 y)) (/ 1 x)) into (* (- (/ 1 x) (/ 1 y)) x)
0.111 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in (x y) around 0
0.111 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in y
0.111 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.111 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.111 * [taylor]: Taking taylor expansion of x in y
0.111 * [backup-simplify]: Simplify x into x
0.111 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.111 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.111 * [taylor]: Taking taylor expansion of y in y
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify 1 into 1
0.111 * [backup-simplify]: Simplify (/ 1 1) into 1
0.111 * [taylor]: Taking taylor expansion of x in y
0.111 * [backup-simplify]: Simplify x into x
0.111 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in x
0.111 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.111 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify 1 into 1
0.111 * [backup-simplify]: Simplify (/ 1 1) into 1
0.111 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.111 * [taylor]: Taking taylor expansion of y in x
0.111 * [backup-simplify]: Simplify y into y
0.112 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 1 into 1
0.112 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) x) in x
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 1 into 1
0.112 * [backup-simplify]: Simplify (/ 1 1) into 1
0.112 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.112 * [taylor]: Taking taylor expansion of y in x
0.112 * [backup-simplify]: Simplify y into y
0.112 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 1 into 1
0.113 * [backup-simplify]: Simplify (+ 1 0) into 1
0.113 * [backup-simplify]: Simplify (* 1 0) into 0
0.113 * [taylor]: Taking taylor expansion of 0 in y
0.113 * [backup-simplify]: Simplify 0 into 0
0.113 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.113 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
0.113 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
0.114 * [backup-simplify]: Simplify (+ (* 1 1) (* (- (/ 1 y)) 0)) into 1
0.114 * [taylor]: Taking taylor expansion of 1 in y
0.114 * [backup-simplify]: Simplify 1 into 1
0.114 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.114 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.115 * [backup-simplify]: Simplify (- 0) into 0
0.115 * [backup-simplify]: Simplify (+ 0 0) into 0
0.116 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 1) (* 0 0))) into (- (/ 1 y))
0.116 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.116 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.116 * [taylor]: Taking taylor expansion of y in y
0.116 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify 1 into 1
0.116 * [backup-simplify]: Simplify (/ 1 1) into 1
0.116 * [backup-simplify]: Simplify (- 1) into -1
0.116 * [backup-simplify]: Simplify -1 into -1
0.116 * [backup-simplify]: Simplify 1 into 1
0.116 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.117 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.117 * [backup-simplify]: Simplify (- 0) into 0
0.118 * [backup-simplify]: Simplify (+ 0 0) into 0
0.118 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 1) (* 0 0)))) into 0
0.118 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.119 * [backup-simplify]: Simplify (- 0) into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.120 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.120 * [backup-simplify]: Simplify (- 0) into 0
0.120 * [backup-simplify]: Simplify (+ 0 0) into 0
0.121 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
0.121 * [taylor]: Taking taylor expansion of 0 in y
0.121 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.122 * [backup-simplify]: Simplify (- 0) into 0
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify (+ 1 (* -1 (* (/ 1 (/ 1 y)) (/ 1 x)))) into (- 1 (/ y x))
0.122 * [backup-simplify]: Simplify (/ (- (/ 1 (- x)) (/ 1 (- y))) (/ 1 (- x))) into (* -1 (* x (- (/ 1 y) (/ 1 x))))
0.122 * [approximate]: Taking taylor expansion of (* -1 (* x (- (/ 1 y) (/ 1 x)))) in (x y) around 0
0.122 * [taylor]: Taking taylor expansion of (* -1 (* x (- (/ 1 y) (/ 1 x)))) in y
0.122 * [taylor]: Taking taylor expansion of -1 in y
0.122 * [backup-simplify]: Simplify -1 into -1
0.122 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) 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 (- (/ 1 y) (/ 1 x)) in y
0.122 * [taylor]: Taking taylor expansion of (/ 1 y) in y
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 * [backup-simplify]: Simplify (/ 1 1) into 1
0.123 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.123 * [taylor]: Taking taylor expansion of x in y
0.123 * [backup-simplify]: Simplify x into x
0.123 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.123 * [taylor]: Taking taylor expansion of (* -1 (* x (- (/ 1 y) (/ 1 x)))) in x
0.123 * [taylor]: Taking taylor expansion of -1 in x
0.123 * [backup-simplify]: Simplify -1 into -1
0.123 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in x
0.123 * [taylor]: Taking taylor expansion of x in x
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.123 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.123 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.123 * [taylor]: Taking taylor expansion of y in x
0.123 * [backup-simplify]: Simplify y into y
0.123 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.123 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.123 * [taylor]: Taking taylor expansion of x in x
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.123 * [backup-simplify]: Simplify (/ 1 1) into 1
0.123 * [taylor]: Taking taylor expansion of (* -1 (* x (- (/ 1 y) (/ 1 x)))) in x
0.123 * [taylor]: Taking taylor expansion of -1 in x
0.123 * [backup-simplify]: Simplify -1 into -1
0.123 * [taylor]: Taking taylor expansion of (* x (- (/ 1 y) (/ 1 x))) in x
0.123 * [taylor]: Taking taylor expansion of x in x
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.123 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.123 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.123 * [taylor]: Taking taylor expansion of y in x
0.123 * [backup-simplify]: Simplify y into y
0.123 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.123 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.123 * [taylor]: Taking taylor expansion of x in x
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.124 * [backup-simplify]: Simplify (/ 1 1) into 1
0.124 * [backup-simplify]: Simplify (- 1) into -1
0.124 * [backup-simplify]: Simplify (+ 0 -1) into -1
0.125 * [backup-simplify]: Simplify (* 0 -1) into 0
0.125 * [backup-simplify]: Simplify (* -1 0) into 0
0.125 * [taylor]: Taking taylor expansion of 0 in y
0.125 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.126 * [backup-simplify]: Simplify (- 0) into 0
0.126 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
0.126 * [backup-simplify]: Simplify (+ (* 0 (/ 1 y)) (* 1 -1)) into (- 1)
0.127 * [backup-simplify]: Simplify (+ (* -1 (- 1)) (* 0 0)) into 1
0.127 * [taylor]: Taking taylor expansion of 1 in y
0.127 * [backup-simplify]: Simplify 1 into 1
0.127 * [backup-simplify]: Simplify 0 into 0
0.127 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.127 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.127 * [backup-simplify]: Simplify (- 0) into 0
0.128 * [backup-simplify]: Simplify (+ 0 0) into 0
0.128 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 (/ 1 y)) (* 0 -1))) into (/ 1 y)
0.129 * [backup-simplify]: Simplify (+ (* -1 (/ 1 y)) (+ (* 0 (- 1)) (* 0 0))) into (- (/ 1 y))
0.129 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.129 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.129 * [taylor]: Taking taylor expansion of y in y
0.129 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify 1 into 1
0.130 * [backup-simplify]: Simplify (/ 1 1) into 1
0.130 * [backup-simplify]: Simplify (- 1) into -1
0.130 * [backup-simplify]: Simplify -1 into -1
0.130 * [backup-simplify]: Simplify 1 into 1
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.131 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.132 * [backup-simplify]: Simplify (- 0) into 0
0.132 * [backup-simplify]: Simplify (+ 0 0) into 0
0.134 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 (/ 1 y)) (* 0 -1)))) into 0
0.135 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 y)) (+ (* 0 (- 1)) (* 0 0)))) into 0
0.135 * [taylor]: Taking taylor expansion of 0 in y
0.135 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.136 * [backup-simplify]: Simplify (- 0) into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.138 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.138 * [backup-simplify]: Simplify (- 0) into 0
0.138 * [backup-simplify]: Simplify (+ 0 0) into 0
0.140 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1))))) into 0
0.141 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (+ (* 0 (- 1)) (* 0 0))))) into 0
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.141 * [backup-simplify]: Simplify 0 into 0
0.142 * [backup-simplify]: Simplify 0 into 0
0.142 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.143 * [backup-simplify]: Simplify (- 0) into 0
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify (+ 1 (* -1 (* (/ 1 (/ 1 (- y))) (/ 1 (- x))))) into (- 1 (/ y x))
0.143 * * * [progress]: simplifying candidates
0.144 * [simplify]: Simplifying:
  (expm1 (/ (- x y) x))
  (log1p (/ (- x y) x))
  (- (log (- x y)) (log x))
  (log (/ (- x y) x))
  (exp (/ (- x y) x))
  (/ (* (* (- x y) (- x y)) (- x y)) (* (* x x) x))
  (* (cbrt (/ (- x y) x)) (cbrt (/ (- x y) x)))
  (cbrt (/ (- x y) x))
  (* (* (/ (- x y) x) (/ (- x y) x)) (/ (- x y) x))
  (sqrt (/ (- x y) x))
  (sqrt (/ (- x y) x))
  (- (- x y))
  (- x)
  (/ x x)
  (/ y x)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt x) (cbrt x)))
  (/ (cbrt (- x y)) (cbrt x))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt x))
  (/ (cbrt (- x y)) (sqrt x))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) 1)
  (/ (cbrt (- x y)) x)
  (/ (sqrt (- x y)) (* (cbrt x) (cbrt x)))
  (/ (sqrt (- x y)) (cbrt x))
  (/ (sqrt (- x y)) (sqrt x))
  (/ (sqrt (- x y)) (sqrt x))
  (/ (sqrt (- x y)) 1)
  (/ (sqrt (- x y)) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (- x y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (- x y) (sqrt x))
  (/ 1 1)
  (/ (- x y) x)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (- (sqrt x) (sqrt y)) (cbrt x))
  (/ (+ (sqrt x) (sqrt y)) (sqrt x))
  (/ (- (sqrt x) (sqrt y)) (sqrt x))
  (/ (+ (sqrt x) (sqrt y)) 1)
  (/ (- (sqrt x) (sqrt y)) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (- x y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (- x y) (sqrt x))
  (/ 1 1)
  (/ (- x y) x)
  (/ 1 x)
  (/ x (- x y))
  (/ (- x y) (* (cbrt x) (cbrt x)))
  (/ (- x y) (sqrt x))
  (/ (- x y) 1)
  (/ x (cbrt (- x y)))
  (/ x (sqrt (- x y)))
  (/ x (- x y))
  (/ x (- (sqrt x) (sqrt y)))
  (/ x (- x y))
  (* x (+ (* x x) (+ (* y y) (* x y))))
  (* x (+ x y))
  (- 1 (/ y x))
  (- 1 (/ y x))
  (- 1 (/ y x))
0.146 * * [simplify]: Extracting # 0 : cost  0
0.146 * * [simplify]: Extracting # 1 : cost  0
0.146 * * [simplify]: Extracting # 2 : cost  0
0.146 * * [simplify]: Extracting # 3 : cost  0
0.147 * * [simplify]: Extracting # 4 : cost  0
0.147 * * [simplify]: Extracting # 5 : cost  0
0.147 * * [simplify]: iteration  0 :  72  enodes  (cost  410 )
0.175 * * [simplify]: Extracting # 0 : cost  0
0.176 * * [simplify]: Extracting # 1 : cost  0
0.176 * * [simplify]: Extracting # 2 : cost  0
0.177 * * [simplify]: iteration  1 :  152  enodes  (cost  392 )
0.237 * * [simplify]: Extracting # 0 : cost  0
0.238 * * [simplify]: Extracting # 1 : cost  0
0.239 * * [simplify]: Extracting # 2 : cost  0
0.240 * * [simplify]: Extracting # 3 : cost  0
0.240 * * [simplify]: Extracting # 4 : cost  0
0.241 * * [simplify]: iteration  2 :  363  enodes  (cost  369 )
0.545 * * [simplify]: Extracting # 0 : cost  0
0.546 * * [simplify]: Extracting # 1 : cost  0
0.547 * * [simplify]: Extracting # 2 : cost  0
0.547 * * [simplify]: Extracting # 3 : cost  0
0.548 * * [simplify]: iteration  3 :  936  enodes  (cost  369 )
1.727 * * [simplify]: Extracting # 0 : cost  0
1.730 * * [simplify]: Extracting # 1 : cost  0
1.733 * * [simplify]: Extracting # 2 : cost  0
1.735 * * [simplify]: Extracting # 3 : cost  0
1.737 * * [simplify]: Extracting # 4 : cost  0
1.739 * * [simplify]: iteration  4 :  2745  enodes  (cost  368 )
3.056 * * [simplify]: Extracting # 0 : cost  0
3.066 * * [simplify]: Extracting # 1 : cost  0
3.077 * * [simplify]: Extracting # 2 : cost  0
3.086 * * [simplify]: iteration done:  5001  enodes  (cost  368 )
3.086 * [simplify]: Simplified to:
  (expm1 (/ (- x y) x))
  (log1p (/ (- x y) x))
  (log1p (- (/ y x)))
  (log1p (- (/ y x)))
  (exp (/ (- x y) x))
  (pow (- 1 (/ y x)) 3)
  (* (cbrt (/ (- x y) x)) (cbrt (/ (- x y) x)))
  (cbrt (/ (- x y) x))
  (pow (- 1 (/ y x)) 3)
  (sqrt (/ (- x y) x))
  (sqrt (/ (- x y) x))
  (- y x)
  (- x)
  1
  (/ y x)
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (* (cbrt x) (cbrt x)))
  (/ (cbrt (- x y)) (cbrt x))
  (/ (* (cbrt (- x y)) (cbrt (- x y))) (sqrt x))
  (/ (cbrt (- x y)) (sqrt x))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (/ (cbrt (- x y)) x)
  (/ (sqrt (- x y)) (* (cbrt x) (cbrt x)))
  (/ (sqrt (- x y)) (cbrt x))
  (/ (sqrt (- x y)) (sqrt x))
  (/ (sqrt (- x y)) (sqrt x))
  (sqrt (- x y))
  (/ (sqrt (- x y)) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (- x y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (- x y) (sqrt x))
  1
  (/ (- x y) x)
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt x) (cbrt x)))
  (/ (- (sqrt x) (sqrt y)) (cbrt x))
  (/ (+ (sqrt x) (sqrt y)) (sqrt x))
  (- 1 (/ (sqrt y) (sqrt x)))
  (+ (sqrt x) (sqrt y))
  (/ (- (sqrt x) (sqrt y)) x)
  (/ 1 (* (cbrt x) (cbrt x)))
  (/ (- x y) (cbrt x))
  (/ 1 (sqrt x))
  (/ (- x y) (sqrt x))
  1
  (/ (- x y) x)
  (/ 1 x)
  (/ x (- x y))
  (/ (- x y) (* (cbrt x) (cbrt x)))
  (/ (- x y) (sqrt x))
  (- x y)
  (/ x (cbrt (- x y)))
  (/ x (sqrt (- x y)))
  (/ x (- x y))
  (/ x (- (sqrt x) (sqrt y)))
  (/ x (- x y))
  (* x (fma x x (* y (+ x y))))
  (* x (+ x y))
  (/ (- x y) x)
  (/ (- x y) x)
  (/ (- x y) x)
3.087 * * * [progress]: adding candidates to table
3.198 * * [progress]: iteration 2 / 4
3.198 * * * [progress]: picking best candidate
3.200 * * * * [pick]: Picked  #<alt (λ (x y) (- 1 (/ y x)))>
3.200 * * * [progress]: localizing error
3.209 * * * [progress]: generating rewritten candidates
3.209 * * * [progress]: generating series expansions
3.210 * * * [progress]: simplifying candidates
3.210 * [simplify]: Simplifying:
  
3.210 * * [simplify]: Extracting # 0 : cost  0
3.210 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
3.210 * * [simplify]: Extracting # 0 : cost  0
3.210 * * [simplify]: iteration done:  0  enodes  (cost  0 )
3.210 * [simplify]: Simplified to:
  
3.210 * * * [progress]: adding candidates to table
3.211 * [progress]: [Phase 3 of 3] Extracting.
3.214 * [simplify]: Simplifying:
  (- 1 (/ y x))
3.214 * * [simplify]: Extracting # 0 : cost  0
3.214 * * [simplify]: Extracting # 1 : cost  0
3.214 * * [simplify]: Extracting # 2 : cost  0
3.214 * * [simplify]: Extracting # 3 : cost  0
3.214 * * [simplify]: Extracting # 4 : cost  0
3.214 * * [simplify]: iteration  0 :  5  enodes  (cost  5 )
3.215 * * [simplify]: Extracting # 0 : cost  0
3.215 * * [simplify]: iteration  1 :  7  enodes  (cost  5 )
3.215 * * [simplify]: Extracting # 0 : cost  0
3.215 * * [simplify]: iteration done:  7  enodes  (cost  5 )
3.215 * [simplify]: Simplified to:
  (- 1 (/ y x))
4.037 * [regime-testing]: Baseline error score: 0.0018752344043005376
4.039 * [regime-testing]: Oracle error score: 0.0018752344043005376
4.039 * [regime-testing]: End program error score: 0.0018752344043005376
4.069 * [regime-testing]: Target error score: 0.0018752344043005376