8.623 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.017 * [progress]: [Phase 2 of 3] Improving.
0.018 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 2.0 (- (* x x) (* x y)))
0.020 * * [simplify]: iteration  0 :  14  enodes  (cost  3 )
0.022 * * [simplify]: iteration  1 :  33  enodes  (cost  3 )
0.024 * * [simplify]: iteration  2 :  73  enodes  (cost  3 )
0.026 * * [simplify]: iteration  3 :  112  enodes  (cost  3 )
0.029 * * [simplify]: iteration  4 :  129  enodes  (cost  3 )
0.031 * * [simplify]: iteration  5 :  131  enodes  (cost  3 )
0.034 * * [simplify]: iteration  6 :  131  enodes  (cost  3 )
0.034 * [simplify]: Simplified to:
   (* (* x (- x y)) 2.0)
0.036 * * [progress]: iteration 1 / 4
0.036 * * * [progress]: picking best candidate
0.038 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>
0.038 * * * [progress]: localizing error
0.044 * * * [progress]: generating rewritten candidates
0.044 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.054 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.058 * * * [progress]: generating series expansions
0.058 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.058 * [approximate]: Taking taylor expansion of (* 2.0 (- (pow x 2) (* x y))) in (x y) around 0
0.058 * [taylor]: Taking taylor expansion of (* 2.0 (- (pow x 2) (* x y))) in y
0.058 * [taylor]: Taking taylor expansion of 2.0 in y
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in y
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.058 * [taylor]: Taking taylor expansion of x in y
0.058 * [taylor]: Taking taylor expansion of (* x y) in y
0.058 * [taylor]: Taking taylor expansion of x in y
0.058 * [taylor]: Taking taylor expansion of y in y
0.058 * [taylor]: Taking taylor expansion of (* 2.0 (- (pow x 2) (* x y))) in x
0.058 * [taylor]: Taking taylor expansion of 2.0 in x
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.058 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of (* x y) in x
0.058 * [taylor]: Taking taylor expansion of x in x
0.058 * [taylor]: Taking taylor expansion of y in x
0.058 * [taylor]: Taking taylor expansion of (* 2.0 (- (pow x 2) (* x y))) in x
0.058 * [taylor]: Taking taylor expansion of 2.0 in x
0.058 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.059 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of (* x y) in x
0.059 * [taylor]: Taking taylor expansion of x in x
0.059 * [taylor]: Taking taylor expansion of y in x
0.060 * [taylor]: Taking taylor expansion of 0 in y
0.060 * [taylor]: Taking taylor expansion of (- (* 2.0 y)) in y
0.060 * [taylor]: Taking taylor expansion of (* 2.0 y) in y
0.061 * [taylor]: Taking taylor expansion of 2.0 in y
0.061 * [taylor]: Taking taylor expansion of y in y
0.063 * [taylor]: Taking taylor expansion of 2.0 in y
0.067 * [taylor]: Taking taylor expansion of 0 in y
0.071 * [taylor]: Taking taylor expansion of 0 in y
0.071 * [approximate]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in (x y) around 0
0.071 * [taylor]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in y
0.071 * [taylor]: Taking taylor expansion of 2.0 in y
0.071 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.071 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.071 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.071 * [taylor]: Taking taylor expansion of x in y
0.071 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.071 * [taylor]: Taking taylor expansion of (* x y) in y
0.071 * [taylor]: Taking taylor expansion of x in y
0.072 * [taylor]: Taking taylor expansion of y in y
0.072 * [taylor]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in x
0.072 * [taylor]: Taking taylor expansion of 2.0 in x
0.072 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.072 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.072 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.072 * [taylor]: Taking taylor expansion of x in x
0.072 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.072 * [taylor]: Taking taylor expansion of (* x y) in x
0.072 * [taylor]: Taking taylor expansion of x in x
0.073 * [taylor]: Taking taylor expansion of y in x
0.073 * [taylor]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in x
0.073 * [taylor]: Taking taylor expansion of 2.0 in x
0.073 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.073 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.073 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.073 * [taylor]: Taking taylor expansion of (* x y) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [taylor]: Taking taylor expansion of y in x
0.074 * [taylor]: Taking taylor expansion of 2.0 in y
0.076 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.076 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.076 * [taylor]: Taking taylor expansion of 2.0 in y
0.076 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.076 * [taylor]: Taking taylor expansion of y in y
0.079 * [taylor]: Taking taylor expansion of 0 in y
0.083 * [taylor]: Taking taylor expansion of 0 in y
0.091 * [taylor]: Taking taylor expansion of 0 in y
0.092 * [approximate]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in (x y) around 0
0.092 * [taylor]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in y
0.092 * [taylor]: Taking taylor expansion of 2.0 in y
0.092 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.092 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.092 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.092 * [taylor]: Taking taylor expansion of x in y
0.092 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.092 * [taylor]: Taking taylor expansion of (* x y) in y
0.092 * [taylor]: Taking taylor expansion of x in y
0.092 * [taylor]: Taking taylor expansion of y in y
0.093 * [taylor]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in x
0.093 * [taylor]: Taking taylor expansion of 2.0 in x
0.093 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.093 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.093 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.093 * [taylor]: Taking taylor expansion of x in x
0.093 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.093 * [taylor]: Taking taylor expansion of (* x y) in x
0.093 * [taylor]: Taking taylor expansion of x in x
0.093 * [taylor]: Taking taylor expansion of y in x
0.094 * [taylor]: Taking taylor expansion of (* 2.0 (- (/ 1 (pow x 2)) (/ 1 (* x y)))) in x
0.094 * [taylor]: Taking taylor expansion of 2.0 in x
0.094 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.094 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.094 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.094 * [taylor]: Taking taylor expansion of x in x
0.094 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.094 * [taylor]: Taking taylor expansion of (* x y) in x
0.094 * [taylor]: Taking taylor expansion of x in x
0.094 * [taylor]: Taking taylor expansion of y in x
0.095 * [taylor]: Taking taylor expansion of 2.0 in y
0.097 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.097 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.097 * [taylor]: Taking taylor expansion of 2.0 in y
0.097 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.097 * [taylor]: Taking taylor expansion of y in y
0.101 * [taylor]: Taking taylor expansion of 0 in y
0.105 * [taylor]: Taking taylor expansion of 0 in y
0.110 * [taylor]: Taking taylor expansion of 0 in y
0.111 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.111 * [approximate]: Taking taylor expansion of (- (pow x 2) (* x y)) in (x y) around 0
0.111 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in y
0.111 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.111 * [taylor]: Taking taylor expansion of x in y
0.111 * [taylor]: Taking taylor expansion of (* x y) in y
0.111 * [taylor]: Taking taylor expansion of x in y
0.111 * [taylor]: Taking taylor expansion of y in y
0.111 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.111 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [taylor]: Taking taylor expansion of (* x y) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [taylor]: Taking taylor expansion of y in x
0.111 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.111 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [taylor]: Taking taylor expansion of (* x y) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [taylor]: Taking taylor expansion of y in x
0.112 * [taylor]: Taking taylor expansion of 0 in y
0.112 * [taylor]: Taking taylor expansion of (- y) in y
0.112 * [taylor]: Taking taylor expansion of y in y
0.114 * [taylor]: Taking taylor expansion of 1 in y
0.116 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.118 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.118 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.118 * [taylor]: Taking taylor expansion of x in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.118 * [taylor]: Taking taylor expansion of (* x y) in y
0.118 * [taylor]: Taking taylor expansion of x in y
0.118 * [taylor]: Taking taylor expansion of y in y
0.119 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.119 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.119 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.119 * [taylor]: Taking taylor expansion of x in x
0.119 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.119 * [taylor]: Taking taylor expansion of (* x y) in x
0.119 * [taylor]: Taking taylor expansion of x in x
0.119 * [taylor]: Taking taylor expansion of y in x
0.120 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.120 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.120 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.120 * [taylor]: Taking taylor expansion of x in x
0.120 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.120 * [taylor]: Taking taylor expansion of (* x y) in x
0.120 * [taylor]: Taking taylor expansion of x in x
0.120 * [taylor]: Taking taylor expansion of y in x
0.121 * [taylor]: Taking taylor expansion of 1 in y
0.122 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.122 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.122 * [taylor]: Taking taylor expansion of y in y
0.124 * [taylor]: Taking taylor expansion of 0 in y
0.128 * [taylor]: Taking taylor expansion of 0 in y
0.131 * [taylor]: Taking taylor expansion of 0 in y
0.131 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.131 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.132 * [taylor]: Taking taylor expansion of x in y
0.132 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.132 * [taylor]: Taking taylor expansion of (* x y) in y
0.132 * [taylor]: Taking taylor expansion of x in y
0.132 * [taylor]: Taking taylor expansion of y in y
0.132 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.132 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.132 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.132 * [taylor]: Taking taylor expansion of x in x
0.133 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.133 * [taylor]: Taking taylor expansion of (* x y) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.133 * [taylor]: Taking taylor expansion of y in x
0.133 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.133 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.133 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.133 * [taylor]: Taking taylor expansion of x in x
0.134 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.134 * [taylor]: Taking taylor expansion of (* x y) in x
0.134 * [taylor]: Taking taylor expansion of x in x
0.134 * [taylor]: Taking taylor expansion of y in x
0.134 * [taylor]: Taking taylor expansion of 1 in y
0.135 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.135 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.135 * [taylor]: Taking taylor expansion of y in y
0.138 * [taylor]: Taking taylor expansion of 0 in y
0.141 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [taylor]: Taking taylor expansion of 0 in y
0.144 * * * [progress]: simplifying candidates
0.145 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* 2.0 (- (* x x) (* x y))))
  (log1p (* 2.0 (- (* x x) (* x y))))
  (* 2.0 (- (* x x) (* x y)))
  (+ (log 2.0) (log (- (* x x) (* x y))))
  (log (* 2.0 (- (* x x) (* x y))))
  (exp (* 2.0 (- (* x x) (* x y))))
  (* (* (* 2.0 2.0) 2.0) (* (* (- (* x x) (* x y)) (- (* x x) (* x y))) (- (* x x) (* x y))))
  (* (cbrt (* 2.0 (- (* x x) (* x y)))) (cbrt (* 2.0 (- (* x x) (* x y)))))
  (cbrt (* 2.0 (- (* x x) (* x y))))
  (* (* (* 2.0 (- (* x x) (* x y))) (* 2.0 (- (* x x) (* x y)))) (* 2.0 (- (* x x) (* x y))))
  (sqrt (* 2.0 (- (* x x) (* x y))))
  (sqrt (* 2.0 (- (* x x) (* x y))))
  (* (sqrt 2.0) (sqrt (- (* x x) (* x y))))
  (* (sqrt 2.0) (sqrt (- (* x x) (* x y))))
  (* 2.0 (fma x x (- (* y x))))
  (* 2.0 (fma (- y) x (* y x)))
  (* 2.0 (* x x))
  (* 2.0 (- (* x y)))
  (* 2.0 (* x x))
  (* 2.0 (- (* x y)))
  (* (fma x x (- (* y x))) 2.0)
  (* (fma (- y) x (* y x)) 2.0)
  (* (* x x) 2.0)
  (* (- (* x y)) 2.0)
  (* (* x x) 2.0)
  (* (- (* x y)) 2.0)
  (* 2.0 (* (cbrt (- (* x x) (* x y))) (cbrt (- (* x x) (* x y)))))
  (* 2.0 (sqrt (- (* x x) (* x y))))
  (* 2.0 1)
  (* 2.0 x)
  (* (cbrt 2.0) (- (* x x) (* x y)))
  (* (sqrt 2.0) (- (* x x) (* x y)))
  (* 2.0 (- (* x x) (* x y)))
  (* 2.0 (- (pow (* x x) 3) (pow (* x y) 3)))
  (* 2.0 (- (* (* x x) (* x x)) (* (* x y) (* x y))))
  (fma x x (- (* y x)))
  (fma (- y) x (* y x))
  (expm1 (- (* x x) (* x y)))
  (log1p (- (* x x) (* x y)))
  (- (* x y))
  (/ (exp (* x x)) (exp (* x y)))
  (log (- (* x x) (* x y)))
  (exp (- (* x x) (* x y)))
  (* (cbrt (- (* x x) (* x y))) (cbrt (- (* x x) (* x y))))
  (cbrt (- (* x x) (* x y)))
  (* (* (- (* x x) (* x y)) (- (* x x) (* x y))) (- (* x x) (* x y)))
  (sqrt (- (* x x) (* x y)))
  (sqrt (- (* x x) (* x y)))
  (- (pow (* x x) 3) (pow (* x y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* x y) (* x y)) (* (* x x) (* x y))))
  (- (* x y))
  (- (* (* x x) (* x x)) (* (* x y) (* x y)))
  (+ (* x x) (* x y))
  (- x y)
  (- (* x y))
  (- (* 2.0 (pow x 2)) (* 2.0 (* x y)))
  (- (* 2.0 (pow x 2)) (* 2.0 (* x y)))
  (- (* 2.0 (pow x 2)) (* 2.0 (* x y)))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
0.150 * * [simplify]: iteration  0 :  182  enodes  (cost  265 )
0.154 * * [simplify]: iteration  1 :  814  enodes  (cost  234 )
0.176 * * [simplify]: iteration  2 :  4686  enodes  (cost  230 )
0.285 * * [simplify]: iteration  3 :  5001  enodes  (cost  230 )
0.287 * [simplify]: Simplified to:
   (expm1 (* 2.0 (- (* x x) (* x y))))
  (log1p (* 2.0 (- (* x x) (* x y))))
  (* (* x (- x y)) 2.0)
  (log (* (* x (- x y)) 2.0))
  (log (* (* x (- x y)) 2.0))
  (pow (exp 2.0) (* x (- x y)))
  (pow (* (* x (- x y)) 2.0) 3)
  (* (cbrt (* 2.0 (- (* x x) (* x y)))) (cbrt (* 2.0 (- (* x x) (* x y)))))
  (cbrt (* 2.0 (- (* x x) (* x y))))
  (pow (* (* x (- x y)) 2.0) 3)
  (sqrt (* 2.0 (- (* x x) (* x y))))
  (sqrt (* 2.0 (- (* x x) (* x y))))
  (* (sqrt 2.0) (sqrt (- (* x x) (* x y))))
  (* (sqrt 2.0) (sqrt (- (* x x) (* x y))))
  (* (* x (- x y)) 2.0)
  (* 2.0 (fma (- y) x (* y x)))
  (* 2.0 (* x x))
  (* 2.0 (- (* x y)))
  (* 2.0 (* x x))
  (* 2.0 (- (* x y)))
  (* (* x (- x y)) 2.0)
  (* 2.0 (fma (- y) x (* y x)))
  (* 2.0 (* x x))
  (* 2.0 (- (* x y)))
  (* 2.0 (* x x))
  (* 2.0 (- (* x y)))
  (* 2.0 (* (cbrt (- (* x x) (* x y))) (cbrt (- (* x x) (* x y)))))
  (* 2.0 (sqrt (- (* x x) (* x y))))
  2.0
  (* 2.0 x)
  (* (* x (- x y)) (cbrt 2.0))
  (* (* x (- x y)) (sqrt 2.0))
  (* (* x (- x y)) 2.0)
  (* 2.0 (- (pow (* x x) 3) (pow (* x y) 3)))
  (* (* 2.0 (fma x x (* x y))) (* x (- x y)))
  (* x (- x y))
  (fma (- y) x (* y x))
  (expm1 (- (* x x) (* x y)))
  (log1p (- (* x x) (* x y)))
  (- (* x y))
  (pow (exp x) (- x y))
  (log (- (* x x) (* x y)))
  (pow (exp x) (- x y))
  (* (cbrt (- (* x x) (* x y))) (cbrt (- (* x x) (* x y))))
  (cbrt (- (* x x) (* x y)))
  (pow (* x (- x y)) 3)
  (sqrt (- (* x x) (* x y)))
  (sqrt (- (* x x) (* x y)))
  (- (pow (* x x) 3) (pow (* x y) 3))
  (fma (* x (* x y)) (+ x y) (pow x 4))
  (- (* x y))
  (* (pow x 2) (- (pow x 2) (* y y)))
  (fma x x (* x y))
  (- x y)
  (- (* x y))
  (* (* x (- x y)) 2.0)
  (* (* x (- x y)) 2.0)
  (* (* x (- x y)) 2.0)
  (* x (- x y))
  (* x (- x y))
  (* x (- x y))
0.287 * * * [progress]: adding candidates to table
0.374 * * [progress]: iteration 2 / 4
0.374 * * * [progress]: picking best candidate
0.375 * * * * [pick]: Picked  #<alt (λ (x y) (* (* 2.0 x) (- x y)))>
0.376 * * * [progress]: localizing error
0.381 * * * [progress]: generating rewritten candidates
0.381 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.396 * * * [progress]: generating series expansions
0.396 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.397 * [approximate]: Taking taylor expansion of (* 2.0 (* x (- x y))) in (x y) around 0
0.397 * [taylor]: Taking taylor expansion of (* 2.0 (* x (- x y))) in y
0.397 * [taylor]: Taking taylor expansion of 2.0 in y
0.397 * [taylor]: Taking taylor expansion of (* x (- x y)) in y
0.397 * [taylor]: Taking taylor expansion of x in y
0.397 * [taylor]: Taking taylor expansion of (- x y) in y
0.397 * [taylor]: Taking taylor expansion of x in y
0.397 * [taylor]: Taking taylor expansion of y in y
0.397 * [taylor]: Taking taylor expansion of (* 2.0 (* x (- x y))) in x
0.397 * [taylor]: Taking taylor expansion of 2.0 in x
0.397 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of (- x y) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of y in x
0.397 * [taylor]: Taking taylor expansion of (* 2.0 (* x (- x y))) in x
0.397 * [taylor]: Taking taylor expansion of 2.0 in x
0.397 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of (- x y) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of y in x
0.398 * [taylor]: Taking taylor expansion of 0 in y
0.399 * [taylor]: Taking taylor expansion of (- (* 2.0 y)) in y
0.399 * [taylor]: Taking taylor expansion of (* 2.0 y) in y
0.399 * [taylor]: Taking taylor expansion of 2.0 in y
0.399 * [taylor]: Taking taylor expansion of y in y
0.401 * [taylor]: Taking taylor expansion of 2.0 in y
0.404 * [taylor]: Taking taylor expansion of 0 in y
0.407 * [taylor]: Taking taylor expansion of 0 in y
0.408 * [approximate]: Taking taylor expansion of (* 2.0 (/ (- (/ 1 x) (/ 1 y)) x)) in (x y) around 0
0.408 * [taylor]: Taking taylor expansion of (* 2.0 (/ (- (/ 1 x) (/ 1 y)) x)) in y
0.408 * [taylor]: Taking taylor expansion of 2.0 in y
0.408 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in y
0.408 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.408 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.408 * [taylor]: Taking taylor expansion of x in y
0.408 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.408 * [taylor]: Taking taylor expansion of y in y
0.408 * [taylor]: Taking taylor expansion of x in y
0.409 * [taylor]: Taking taylor expansion of (* 2.0 (/ (- (/ 1 x) (/ 1 y)) x)) in x
0.409 * [taylor]: Taking taylor expansion of 2.0 in x
0.409 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
0.409 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.409 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.409 * [taylor]: Taking taylor expansion of x in x
0.412 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.412 * [taylor]: Taking taylor expansion of y in x
0.412 * [taylor]: Taking taylor expansion of x in x
0.413 * [taylor]: Taking taylor expansion of (* 2.0 (/ (- (/ 1 x) (/ 1 y)) x)) in x
0.413 * [taylor]: Taking taylor expansion of 2.0 in x
0.413 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
0.413 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.413 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.413 * [taylor]: Taking taylor expansion of x in x
0.413 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.413 * [taylor]: Taking taylor expansion of y in x
0.413 * [taylor]: Taking taylor expansion of x in x
0.414 * [taylor]: Taking taylor expansion of 2.0 in y
0.415 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.415 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.415 * [taylor]: Taking taylor expansion of 2.0 in y
0.415 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.415 * [taylor]: Taking taylor expansion of y in y
0.419 * [taylor]: Taking taylor expansion of 0 in y
0.423 * [taylor]: Taking taylor expansion of 0 in y
0.428 * [taylor]: Taking taylor expansion of 0 in y
0.428 * [approximate]: Taking taylor expansion of (* -2.0 (/ (- (/ 1 y) (/ 1 x)) x)) in (x y) around 0
0.428 * [taylor]: Taking taylor expansion of (* -2.0 (/ (- (/ 1 y) (/ 1 x)) x)) in y
0.428 * [taylor]: Taking taylor expansion of -2.0 in y
0.428 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in y
0.428 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.428 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.429 * [taylor]: Taking taylor expansion of y in y
0.429 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.429 * [taylor]: Taking taylor expansion of x in y
0.429 * [taylor]: Taking taylor expansion of x in y
0.429 * [taylor]: Taking taylor expansion of (* -2.0 (/ (- (/ 1 y) (/ 1 x)) x)) in x
0.429 * [taylor]: Taking taylor expansion of -2.0 in x
0.429 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
0.429 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.429 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.429 * [taylor]: Taking taylor expansion of y in x
0.429 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.429 * [taylor]: Taking taylor expansion of x in x
0.430 * [taylor]: Taking taylor expansion of x in x
0.430 * [taylor]: Taking taylor expansion of (* -2.0 (/ (- (/ 1 y) (/ 1 x)) x)) in x
0.430 * [taylor]: Taking taylor expansion of -2.0 in x
0.430 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
0.430 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.430 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.430 * [taylor]: Taking taylor expansion of y in x
0.430 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.432 * [taylor]: Taking taylor expansion of 2.0 in y
0.433 * [taylor]: Taking taylor expansion of (- (* 2.0 (/ 1 y))) in y
0.433 * [taylor]: Taking taylor expansion of (* 2.0 (/ 1 y)) in y
0.434 * [taylor]: Taking taylor expansion of 2.0 in y
0.434 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.434 * [taylor]: Taking taylor expansion of y in y
0.437 * [taylor]: Taking taylor expansion of 0 in y
0.441 * [taylor]: Taking taylor expansion of 0 in y
0.446 * [taylor]: Taking taylor expansion of 0 in y
0.447 * * * [progress]: simplifying candidates
0.448 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (expm1 (* (* 2.0 x) (- x y)))
  (log1p (* (* 2.0 x) (- x y)))
  (* (* 2.0 x) (- x y))
  (* (* 2.0 x) (- x y))
  (+ (+ (log 2.0) (log x)) (log (- x y)))
  (+ (log (* 2.0 x)) (log (- x y)))
  (log (* (* 2.0 x) (- x y)))
  (exp (* (* 2.0 x) (- x y)))
  (* (* (* (* 2.0 2.0) 2.0) (* (* x x) x)) (* (* (- x y) (- x y)) (- x y)))
  (* (* (* (* 2.0 x) (* 2.0 x)) (* 2.0 x)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* (* 2.0 x) (- x y))) (cbrt (* (* 2.0 x) (- x y))))
  (cbrt (* (* 2.0 x) (- x y)))
  (* (* (* (* 2.0 x) (- x y)) (* (* 2.0 x) (- x y))) (* (* 2.0 x) (- x y)))
  (sqrt (* (* 2.0 x) (- x y)))
  (sqrt (* (* 2.0 x) (- x y)))
  (* (* 2.0 x) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* (* 2.0 x) (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* (* 2.0 x) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) (sqrt y)))))
  (* (* 2.0 x) (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* (* 2.0 x) (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* y 1))))
  (* (* 2.0 x) (fma (- y) 1 (* y 1)))
  (* (* 2.0 x) (fma (sqrt x) (sqrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* (* 2.0 x) (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* (* 2.0 x) (fma (sqrt x) (sqrt x) (- (* (sqrt y) (sqrt y)))))
  (* (* 2.0 x) (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* (* 2.0 x) (fma (sqrt x) (sqrt x) (- (* y 1))))
  (* (* 2.0 x) (fma (- y) 1 (* y 1)))
  (* (* 2.0 x) (fma 1 x (- (* (cbrt y) (* (cbrt y) (cbrt y))))))
  (* (* 2.0 x) (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))))
  (* (* 2.0 x) (fma 1 x (- (* (sqrt y) (sqrt y)))))
  (* (* 2.0 x) (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))))
  (* (* 2.0 x) (fma 1 x (- (* y 1))))
  (* (* 2.0 x) (fma (- y) 1 (* y 1)))
  (* (* 2.0 x) x)
  (* (* 2.0 x) (- y))
  (* (* 2.0 x) x)
  (* (* 2.0 x) (- y))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))) (* 2.0 x))
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) (* 2.0 x))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* (sqrt y) (sqrt y)))) (* 2.0 x))
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) (* 2.0 x))
  (* (fma (* (cbrt x) (cbrt x)) (cbrt x) (- (* y 1))) (* 2.0 x))
  (* (fma (- y) 1 (* y 1)) (* 2.0 x))
  (* (fma (sqrt x) (sqrt x) (- (* (cbrt y) (* (cbrt y) (cbrt y))))) (* 2.0 x))
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) (* 2.0 x))
  (* (fma (sqrt x) (sqrt x) (- (* (sqrt y) (sqrt y)))) (* 2.0 x))
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) (* 2.0 x))
  (* (fma (sqrt x) (sqrt x) (- (* y 1))) (* 2.0 x))
  (* (fma (- y) 1 (* y 1)) (* 2.0 x))
  (* (fma 1 x (- (* (cbrt y) (* (cbrt y) (cbrt y))))) (* 2.0 x))
  (* (fma (- (cbrt y)) (* (cbrt y) (cbrt y)) (* (cbrt y) (* (cbrt y) (cbrt y)))) (* 2.0 x))
  (* (fma 1 x (- (* (sqrt y) (sqrt y)))) (* 2.0 x))
  (* (fma (- (sqrt y)) (sqrt y) (* (sqrt y) (sqrt y))) (* 2.0 x))
  (* (fma 1 x (- (* y 1))) (* 2.0 x))
  (* (fma (- y) 1 (* y 1)) (* 2.0 x))
  (* x (* 2.0 x))
  (* (- y) (* 2.0 x))
  (* x (* 2.0 x))
  (* (- y) (* 2.0 x))
  (* (* 2.0 x) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (* 2.0 x) (sqrt (- x y)))
  (* (* 2.0 x) 1)
  (* (* 2.0 x) (+ (sqrt x) (sqrt y)))
  (* (* 2.0 x) 1)
  (* x (- x y))
  (* (* 2.0 x) (- (pow x 3) (pow y 3)))
  (* (* 2.0 x) (- (* x x) (* y y)))
  (- (* 2.0 (pow x 2)) (* 2.0 (* x y)))
  (- (* 2.0 (pow x 2)) (* 2.0 (* x y)))
  (- (* 2.0 (pow x 2)) (* 2.0 (* x y)))
0.453 * * [simplify]: iteration  0 :  297  enodes  (cost  433 )
0.460 * * [simplify]: iteration  1 :  1306  enodes  (cost  284 )
0.489 * * [simplify]: iteration  2 :  5001  enodes  (cost  272 )
0.491 * [simplify]: Simplified to:
   (expm1 (* (* 2.0 x) (- x y)))
  (log1p (* (* 2.0 x) (- x y)))
  (* (* 2.0 x) (- x y))
  (* (* 2.0 x) (- x y))
  (log (* (* 2.0 x) (- x y)))
  (log (* (* 2.0 x) (- x y)))
  (log (* (* 2.0 x) (- x y)))
  (exp (* (* 2.0 x) (- x y)))
  (pow (* (* 2.0 x) (- x y)) 3)
  (pow (* (* 2.0 x) (- x y)) 3)
  (* (cbrt (* (* 2.0 x) (- x y))) (cbrt (* (* 2.0 x) (- x y))))
  (cbrt (* (* 2.0 x) (- x y)))
  (pow (* (* 2.0 x) (- x y)) 3)
  (sqrt (* (* 2.0 x) (- x y)))
  (sqrt (* (* 2.0 x) (- x y)))
  (* (+ (* 2.0 (pow (cbrt x) 3)) (* (- y) 2.0)) x)
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (+ (* 2.0 (pow (cbrt x) 3)) (* (- y) 2.0)) x)
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (+ (* 2.0 (pow (cbrt x) 3)) (* (- y) 2.0)) x)
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) x)
  (* (* 2.0 x) (- y))
  (* (* 2.0 x) x)
  (* (* 2.0 x) (- y))
  (* (+ (* 2.0 (pow (cbrt x) 3)) (* (- y) 2.0)) x)
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (+ (* 2.0 (pow (cbrt x) 3)) (* (- y) 2.0)) x)
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (+ (* 2.0 (pow (cbrt x) 3)) (* (- y) 2.0)) x)
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) (- x y))
  (* (* (fma (- y) 1 y) x) 2.0)
  (* (* 2.0 x) x)
  (* (* 2.0 x) (- y))
  (* (* 2.0 x) x)
  (* (* 2.0 x) (- y))
  (* (* 2.0 x) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (* 2.0 x) (sqrt (- x y)))
  (* 2.0 x)
  (* (* 2.0 x) (+ (sqrt x) (sqrt y)))
  (* 2.0 x)
  (* x (- x y))
  (* (* 2.0 x) (- (pow x 3) (pow y 3)))
  (* (* 2.0 x) (- (* x x) (* y y)))
  (* (* 2.0 x) (- x y))
  (* (* 2.0 x) (- x y))
  (* (* 2.0 x) (- x y))
0.491 * * * [progress]: adding candidates to table
0.537 * [progress]: [Phase 3 of 3] Extracting.
0.537 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* (* 2.0 x) (- x y)))> #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>)
0.537 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x x) (* x y)) (* 2.0 (- (* x x) (* x y))) y x)
0.537 * * * * [regimes]: Trying to branch on (- (* x x) (* x y)) from (#<alt (λ (x y) (* (* 2.0 x) (- x y)))> #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>)
0.548 * * * * [regimes]: Trying to branch on (* 2.0 (- (* x x) (* x y))) from (#<alt (λ (x y) (* (* 2.0 x) (- x y)))> #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>)
0.562 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* (* 2.0 x) (- x y)))> #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>)
0.573 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* (* 2.0 x) (- x y)))> #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>)
0.584 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.584 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (* 2.0 x) (- x y))
0.585 * * [simplify]: iteration  0 :  8  enodes  (cost  3 )
0.585 * * [simplify]: iteration  1 :  8  enodes  (cost  3 )
0.585 * [simplify]: Simplified to:
   (* (* 2.0 x) (- x y))
1.262 * [regime-testing]: Baseline error score: 0.010126265783222902
1.263 * [regime-testing]: Oracle error score: 0.0031253906738342293
1.264 * [regime-testing]: End program error score: 0.010126265783222902
1.284 * [regime-testing]: Target error score: 0.010126265783222902