18.630 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.079 * * * [progress]: [2/2] Setting up program.
0.082 * [progress]: [Phase 2 of 3] Improving.
0.082 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 2.0 (- (* x x) (* x y)))
0.095 * * [simplify]: iteration  0 :  380  enodes  (cost  7 )
0.095 * * [simplify]: iteration  1 :  380  enodes  (cost  7 )
0.096 * [simplify]: Simplified to:
   (* 2.0 (* x (- x y)))
0.099 * * [progress]: iteration 1 / 4
0.099 * * * [progress]: picking best candidate
0.103 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))>
0.103 * * * [progress]: localizing error
0.109 * * * [progress]: generating rewritten candidates
0.109 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.113 * * * [progress]: generating series expansions
0.113 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.113 * [approximate]: Taking taylor expansion of (- (pow x 2) (* x y)) in (x y) around 0
0.113 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in y
0.113 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.113 * [taylor]: Taking taylor expansion of x in y
0.113 * [taylor]: Taking taylor expansion of (* x y) in y
0.113 * [taylor]: Taking taylor expansion of x in y
0.113 * [taylor]: Taking taylor expansion of y in y
0.113 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.113 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.113 * [taylor]: Taking taylor expansion of x in x
0.113 * [taylor]: Taking taylor expansion of (* x y) in x
0.113 * [taylor]: Taking taylor expansion of x in x
0.113 * [taylor]: Taking taylor expansion of y in x
0.113 * [taylor]: Taking taylor expansion of (- (pow x 2) (* x y)) in x
0.113 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.113 * [taylor]: Taking taylor expansion of x in x
0.114 * [taylor]: Taking taylor expansion of (* x y) in x
0.114 * [taylor]: Taking taylor expansion of x in x
0.114 * [taylor]: Taking taylor expansion of y in x
0.114 * [taylor]: Taking taylor expansion of 0 in y
0.114 * [taylor]: Taking taylor expansion of (neg y) in y
0.114 * [taylor]: Taking taylor expansion of y in y
0.114 * [taylor]: Taking taylor expansion of 1 in y
0.114 * [taylor]: Taking taylor expansion of 0 in y
0.114 * [taylor]: Taking taylor expansion of 0 in y
0.114 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.114 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.114 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.114 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.114 * [taylor]: Taking taylor expansion of x in y
0.115 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.115 * [taylor]: Taking taylor expansion of (* x y) in y
0.115 * [taylor]: Taking taylor expansion of x in y
0.115 * [taylor]: Taking taylor expansion of y in y
0.115 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.115 * [taylor]: Taking taylor expansion of (* x y) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of y in x
0.115 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.115 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.115 * [taylor]: Taking taylor expansion of (* x y) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of y in x
0.115 * [taylor]: Taking taylor expansion of 1 in y
0.115 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.115 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.115 * [taylor]: Taking taylor expansion of y in y
0.115 * [taylor]: Taking taylor expansion of 0 in y
0.116 * [taylor]: Taking taylor expansion of 0 in y
0.116 * [taylor]: Taking taylor expansion of 0 in y
0.116 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in (x y) around 0
0.116 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in y
0.116 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.116 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.116 * [taylor]: Taking taylor expansion of x in y
0.117 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.117 * [taylor]: Taking taylor expansion of (* x y) in y
0.117 * [taylor]: Taking taylor expansion of x in y
0.117 * [taylor]: Taking taylor expansion of y in y
0.117 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.117 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.117 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.117 * [taylor]: Taking taylor expansion of x in x
0.117 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.117 * [taylor]: Taking taylor expansion of (* x y) in x
0.117 * [taylor]: Taking taylor expansion of x in x
0.117 * [taylor]: Taking taylor expansion of y in x
0.117 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (* x y))) in x
0.117 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.117 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.117 * [taylor]: Taking taylor expansion of x in x
0.117 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.117 * [taylor]: Taking taylor expansion of (* x y) in x
0.117 * [taylor]: Taking taylor expansion of x in x
0.117 * [taylor]: Taking taylor expansion of y in x
0.117 * [taylor]: Taking taylor expansion of 1 in y
0.117 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.117 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.117 * [taylor]: Taking taylor expansion of y in y
0.117 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [taylor]: Taking taylor expansion of 0 in y
0.118 * [taylor]: Taking taylor expansion of 0 in y
0.118 * * * [progress]: simplifying candidates
0.119 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (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))))
  (neg (* x y))
  (- (* (* x x) (* x x)) (* (* x y) (* x y)))
  (+ (* x x) (* x y))
  (- x y)
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
0.157 * * [simplify]: iteration  0 :  5074  enodes  (cost  116 )
0.158 * [simplify]: Simplified to:
   (pow (exp x) (- x y))
  (log (* x (- x y)))
  (pow (exp x) (- x y))
  (* (cbrt (* x (- x y))) (cbrt (* x (- x y))))
  (cbrt (* x (- x y)))
  (pow (* x (- x y)) 3)
  (sqrt (* x (- x y)))
  (sqrt (* x (- x y)))
  (- (pow x 6) (pow (* x y) 3))
  (+ (pow x 4) (* x (* x (* y (+ x y)))))
  (* x (neg y))
  (- (pow x 4) (* x (* x (* y y))))
  (* x (+ x y))
  (- x y)
  (* x (- x y))
  (* x (- x y))
  (* x (- x y))
0.159 * * * [progress]: adding candidates to table
0.173 * * [progress]: iteration 2 / 4
0.173 * * * [progress]: picking best candidate
0.175 * * * * [pick]: Picked  #<alt (λ (x y) (* 2.0 (* x (- x y))))>
0.175 * * * [progress]: localizing error
0.179 * * * [progress]: generating rewritten candidates
0.179 * * * * [progress]: [ 1 / 1 ] rewriting at (2 2)
0.186 * * * [progress]: generating series expansions
0.186 * * * * [progress]: [ 1 / 1 ] generating series at (2 2)
0.186 * [approximate]: Taking taylor expansion of (* x (- x y)) in (x y) around 0
0.186 * [taylor]: Taking taylor expansion of (* x (- x y)) in y
0.186 * [taylor]: Taking taylor expansion of x in y
0.186 * [taylor]: Taking taylor expansion of (- x y) in y
0.186 * [taylor]: Taking taylor expansion of x in y
0.187 * [taylor]: Taking taylor expansion of y in y
0.187 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of (- x y) in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of y in x
0.187 * [taylor]: Taking taylor expansion of (* x (- x y)) in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of (- x y) in x
0.187 * [taylor]: Taking taylor expansion of x in x
0.187 * [taylor]: Taking taylor expansion of y in x
0.187 * [taylor]: Taking taylor expansion of 0 in y
0.187 * [taylor]: Taking taylor expansion of (neg y) in y
0.187 * [taylor]: Taking taylor expansion of y in y
0.187 * [taylor]: Taking taylor expansion of 1 in y
0.187 * [taylor]: Taking taylor expansion of 0 in y
0.187 * [taylor]: Taking taylor expansion of 0 in y
0.187 * [approximate]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in (x y) around 0
0.187 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in y
0.187 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.187 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.187 * [taylor]: Taking taylor expansion of x in y
0.188 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.188 * [taylor]: Taking taylor expansion of y in y
0.188 * [taylor]: Taking taylor expansion of x in y
0.188 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
0.188 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.188 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.188 * [taylor]: Taking taylor expansion of x in x
0.188 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.188 * [taylor]: Taking taylor expansion of y in x
0.188 * [taylor]: Taking taylor expansion of x in x
0.188 * [taylor]: Taking taylor expansion of (/ (- (/ 1 x) (/ 1 y)) x) in x
0.188 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.188 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.188 * [taylor]: Taking taylor expansion of x in x
0.188 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.188 * [taylor]: Taking taylor expansion of y in x
0.188 * [taylor]: Taking taylor expansion of x in x
0.188 * [taylor]: Taking taylor expansion of 1 in y
0.188 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.188 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.188 * [taylor]: Taking taylor expansion of y in y
0.188 * [taylor]: Taking taylor expansion of 0 in y
0.189 * [taylor]: Taking taylor expansion of 0 in y
0.189 * [taylor]: Taking taylor expansion of 0 in y
0.189 * [approximate]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in (x y) around 0
0.189 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in y
0.189 * [taylor]: Taking taylor expansion of -1 in y
0.189 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in y
0.189 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.189 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.189 * [taylor]: Taking taylor expansion of y in y
0.189 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.189 * [taylor]: Taking taylor expansion of x in y
0.189 * [taylor]: Taking taylor expansion of x in y
0.189 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in x
0.189 * [taylor]: Taking taylor expansion of -1 in x
0.189 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
0.189 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.189 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.189 * [taylor]: Taking taylor expansion of y in x
0.189 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of (* -1 (/ (- (/ 1 y) (/ 1 x)) x)) in x
0.190 * [taylor]: Taking taylor expansion of -1 in x
0.190 * [taylor]: Taking taylor expansion of (/ (- (/ 1 y) (/ 1 x)) x) in x
0.190 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.190 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.190 * [taylor]: Taking taylor expansion of y in x
0.190 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of x in x
0.190 * [taylor]: Taking taylor expansion of 1 in y
0.190 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.190 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.190 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [taylor]: Taking taylor expansion of 0 in y
0.191 * * * [progress]: simplifying candidates
0.191 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (- x y))
  (+ (log x) (log (- x y)))
  (log (* x (- x y)))
  (exp (* x (- x y)))
  (* (* (* x x) x) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* x (- x y))) (cbrt (* x (- x y))))
  (cbrt (* x (- x y)))
  (* (* (* x (- x y)) (* x (- x y))) (* x (- x y)))
  (sqrt (* x (- x y)))
  (sqrt (* x (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* x x)
  (* x (neg y))
  (* x x)
  (* (neg y) x)
  (* x (* (cbrt (- x y)) (cbrt (- x y))))
  (* x (sqrt (- x y)))
  (* x 1)
  (* x (+ (sqrt x) (sqrt y)))
  (* x 1)
  (* (cbrt x) (- x y))
  (* (sqrt x) (- x y))
  (* x (- x y))
  (* x (- (pow x 3) (pow y 3)))
  (* x (- (* x x) (* y y)))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
  (- (pow x 2) (* x y))
0.230 * * [simplify]: iteration  0 :  5081  enodes  (cost  172 )
0.231 * [simplify]: Simplified to:
   (* x (- x y))
  (log (* x (- x y)))
  (log (* x (- x y)))
  (pow (exp x) (- x y))
  (pow (* x (- x y)) 3)
  (* (cbrt (* x (- x y))) (cbrt (* x (- x y))))
  (cbrt (* x (- x y)))
  (pow (* x (- x y)) 3)
  (sqrt (* x (- x y)))
  (sqrt (* x (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* (sqrt x) (sqrt (- x y)))
  (* x x)
  (* x (neg y))
  (* x x)
  (* x (neg y))
  (* x (* (cbrt (- x y)) (cbrt (- x y))))
  (* x (sqrt (- x y)))
  x
  (* x (+ (sqrt x) (sqrt y)))
  x
  (* (- x y) (cbrt x))
  (* (- x y) (sqrt x))
  (* x (- x y))
  (- (pow x 4) (* x (pow y 3)))
  (- (pow x 3) (* x (* y y)))
  (* x (- x y))
  (* x (- x y))
  (* x (- x y))
0.232 * * * [progress]: adding candidates to table
0.252 * [progress]: [Phase 3 of 3] Extracting.
0.253 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
0.253 * * * [regime-changes]: Trying 4 branch expressions: ((- (* x x) (* x y)) (* 2.0 (- (* x x) (* x y))) y x)
0.253 * * * * [regimes]: Trying to branch on (- (* x x) (* x y)) from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
0.284 * * * * [regimes]: Trying to branch on (* 2.0 (- (* x x) (* x y))) from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
0.317 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
0.348 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (* 2.0 (- (* x x) (* x y))))> #<alt (λ (x y) (* 2.0 (* x (- x y))))>)
0.379 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.379 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* 2.0 (- (* x x) (* x y)))
0.380 * * [simplify]: iteration  0 :  35  enodes  (cost  9 )
0.380 * * [simplify]: iteration  1 :  35  enodes  (cost  9 )
0.381 * [simplify]: Simplified to:
   (* 2.0 (- (* x x) (* x y)))
0.984 * [regime-testing]: End program error score: 0.015626953369171147
1.050 * [regime-testing]: Target error score: 0.010001250156269533