3.965 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.129 * * * * [points]: Sampling 256 additional inputs, on iter 0 have 0 / 256
0.131 * * * * [points]: Computing exacts on every 16 of 256 points to ramp up precision
0.131 * * * * [points]: Setting MPFR precision to 64
0.131 * * * * [points]: Setting MPFR precision to 320
0.131 * * * * [points]: Computing exacts on every 8 of 256 points to ramp up precision
0.132 * * * * [points]: Setting MPFR precision to 64
0.132 * * * * [points]: Setting MPFR precision to 320
0.132 * * * * [points]: Computing exacts on every 4 of 256 points to ramp up precision
0.132 * * * * [points]: Setting MPFR precision to 64
0.133 * * * * [points]: Setting MPFR precision to 320
0.134 * * * * [points]: Computing exacts on every 2 of 256 points to ramp up precision
0.134 * * * * [points]: Setting MPFR precision to 64
0.135 * * * * [points]: Setting MPFR precision to 320
0.136 * * * * [points]: Computing exacts for 256 points
0.136 * * * * [points]: Setting MPFR precision to 64
0.140 * * * * [points]: Setting MPFR precision to 320
0.143 * * * * [points]: Filtering points with unrepresentable outputs
0.144 * * * * [points]: Sampling 8 additional inputs, on iter 1 have 248 / 256
0.144 * * * * [points]: Computing exacts for 8 points
0.144 * * * * [points]: Setting MPFR precision to 64
0.144 * * * * [points]: Setting MPFR precision to 320
0.144 * * * * [points]: Filtering points with unrepresentable outputs
0.144 * * * * [points]: Sampled 256 points with exact outputs
0.155 * * * [progress]: [2/2] Setting up program.
0.158 * [progress]: [Phase 2 of 3] Improving.
0.159 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.203 * * [simplify]: iteration  0 :  5064  enodes  (cost  7 )
0.203 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
0.204 * * [progress]: iteration 1 / 4
0.204 * * * [progress]: picking best candidate
0.206 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
0.206 * * * [progress]: localizing error
0.212 * * * [progress]: generating rewritten candidates
0.212 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.220 * * * [progress]: generating series expansions
0.220 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.220 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0
0.220 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y
0.220 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.220 * [taylor]: Taking taylor expansion of x in y
0.220 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.220 * [taylor]: Taking taylor expansion of y in y
0.220 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
0.220 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.220 * [taylor]: Taking taylor expansion of x in x
0.220 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.220 * [taylor]: Taking taylor expansion of y in x
0.220 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
0.220 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.220 * [taylor]: Taking taylor expansion of x in x
0.220 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.220 * [taylor]: Taking taylor expansion of y in x
0.221 * [taylor]: Taking taylor expansion of (neg (pow y 4)) in y
0.221 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.221 * [taylor]: Taking taylor expansion of y in y
0.221 * [taylor]: Taking taylor expansion of 0 in y
0.221 * [taylor]: Taking taylor expansion of 0 in y
0.221 * [taylor]: Taking taylor expansion of 0 in y
0.222 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
0.222 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
0.222 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.222 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.222 * [taylor]: Taking taylor expansion of x in y
0.222 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.222 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.222 * [taylor]: Taking taylor expansion of y in y
0.222 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.222 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.222 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.222 * [taylor]: Taking taylor expansion of x in x
0.222 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.222 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.222 * [taylor]: Taking taylor expansion of y in x
0.222 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.222 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.222 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.222 * [taylor]: Taking taylor expansion of x in x
0.222 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.222 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.222 * [taylor]: Taking taylor expansion of y in x
0.223 * [taylor]: Taking taylor expansion of 1 in y
0.223 * [taylor]: Taking taylor expansion of 0 in y
0.223 * [taylor]: Taking taylor expansion of 0 in y
0.223 * [taylor]: Taking taylor expansion of 0 in y
0.223 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 4))) in y
0.223 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.223 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.223 * [taylor]: Taking taylor expansion of y in y
0.224 * [taylor]: Taking taylor expansion of 0 in y
0.225 * [taylor]: Taking taylor expansion of 0 in y
0.225 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
0.225 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
0.225 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.225 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.225 * [taylor]: Taking taylor expansion of x in y
0.225 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.225 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.225 * [taylor]: Taking taylor expansion of y in y
0.225 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.225 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.225 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.225 * [taylor]: Taking taylor expansion of x in x
0.226 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.226 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.226 * [taylor]: Taking taylor expansion of y in x
0.226 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.226 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.226 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.226 * [taylor]: Taking taylor expansion of x in x
0.226 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.226 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.226 * [taylor]: Taking taylor expansion of y in x
0.226 * [taylor]: Taking taylor expansion of 1 in y
0.226 * [taylor]: Taking taylor expansion of 0 in y
0.226 * [taylor]: Taking taylor expansion of 0 in y
0.226 * [taylor]: Taking taylor expansion of 0 in y
0.227 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow y 4))) in y
0.227 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.227 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.227 * [taylor]: Taking taylor expansion of y in y
0.227 * [taylor]: Taking taylor expansion of 0 in y
0.228 * [taylor]: Taking taylor expansion of 0 in y
0.228 * * * [progress]: simplifying candidates
0.229 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp (pow x 4.0)) (exp (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (* (* (- (pow x 4.0) (pow y 4.0)) (- (pow x 4.0) (pow y 4.0))) (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (+ (* (pow x 4.0) (pow x 4.0)) (+ (* (pow y 4.0) (pow y 4.0)) (* (pow x 4.0) (pow y 4.0))))
  (neg (pow y 4.0))
  (- (* (pow x 4.0) (pow x 4.0)) (* (pow y 4.0) (pow y 4.0)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
0.270 * * [simplify]: iteration  0 :  4895  enodes  (cost  327 )
0.270 * * [simplify]: iteration  1 :  4895  enodes  (cost  327 )
0.275 * [simplify]: Simplified to:
   (exp (- (pow x 4.0) (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (pow (- (pow x 4.0) (pow y 4.0)) 3)
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (+ (pow x (* 4.0 2)) (* (pow y 4.0) (+ (pow x 4.0) (pow y 4.0))))
  (neg (pow y 4.0))
  (- (pow x (* 4.0 2)) (pow y (* 4.0 2)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (pow (sqrt y) 4.0) (sqrt (pow x 4.0)))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow y 4.0)) (sqrt (pow x 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (pow y (/ 4.0 2)) (sqrt (pow x 4.0)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow (sqrt y) 4.0) (pow x (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow y 4.0)) (pow x (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow y (/ 4.0 2)) (pow x (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
0.275 * * * [progress]: adding candidates to table
0.321 * [progress]: [Phase 3 of 3] Extracting.
0.324 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.325 * * [simplify]: iteration  0 :  16  enodes  (cost  7 )
0.325 * * [simplify]: iteration  1 :  16  enodes  (cost  7 )
0.325 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
0.325 * * * * [points]: Sampling 8000 additional inputs, on iter 0 have 0 / 8000
0.386 * * * * [points]: Computing exacts on every 500 of 8000 points to ramp up precision
0.386 * * * * [points]: Setting MPFR precision to 64
0.387 * * * * [points]: Setting MPFR precision to 320
0.387 * * * * [points]: Computing exacts on every 250 of 8000 points to ramp up precision
0.387 * * * * [points]: Setting MPFR precision to 64
0.387 * * * * [points]: Setting MPFR precision to 320
0.388 * * * * [points]: Computing exacts on every 125 of 8000 points to ramp up precision
0.388 * * * * [points]: Setting MPFR precision to 64
0.389 * * * * [points]: Setting MPFR precision to 320
0.390 * * * * [points]: Computing exacts on every 62 of 8000 points to ramp up precision
0.390 * * * * [points]: Setting MPFR precision to 64
0.391 * * * * [points]: Setting MPFR precision to 320
0.393 * * * * [points]: Computing exacts on every 31 of 8000 points to ramp up precision
0.393 * * * * [points]: Setting MPFR precision to 64
0.396 * * * * [points]: Setting MPFR precision to 320
0.400 * * * * [points]: Computing exacts on every 15 of 8000 points to ramp up precision
0.400 * * * * [points]: Setting MPFR precision to 64
0.410 * * * * [points]: Setting MPFR precision to 320
0.417 * * * * [points]: Computing exacts on every 7 of 8000 points to ramp up precision
0.417 * * * * [points]: Setting MPFR precision to 64
0.431 * * * * [points]: Setting MPFR precision to 320
0.445 * * * * [points]: Computing exacts on every 3 of 8000 points to ramp up precision
0.445 * * * * [points]: Setting MPFR precision to 64
0.470 * * * * [points]: Setting MPFR precision to 320
0.499 * * * * [points]: Computing exacts for 8000 points
0.500 * * * * [points]: Setting MPFR precision to 64
0.604 * * * * [points]: Setting MPFR precision to 320
0.712 * * * * [points]: Filtering points with unrepresentable outputs
0.724 * * * * [points]: Sampling 271 additional inputs, on iter 1 have 7729 / 8000
0.726 * * * * [points]: Computing exacts on every 16 of 271 points to ramp up precision
0.726 * * * * [points]: Setting MPFR precision to 64
0.727 * * * * [points]: Setting MPFR precision to 320
0.727 * * * * [points]: Computing exacts on every 8 of 271 points to ramp up precision
0.727 * * * * [points]: Setting MPFR precision to 64
0.727 * * * * [points]: Setting MPFR precision to 320
0.728 * * * * [points]: Computing exacts on every 4 of 271 points to ramp up precision
0.728 * * * * [points]: Setting MPFR precision to 64
0.729 * * * * [points]: Setting MPFR precision to 320
0.729 * * * * [points]: Computing exacts on every 2 of 271 points to ramp up precision
0.729 * * * * [points]: Setting MPFR precision to 64
0.731 * * * * [points]: Setting MPFR precision to 320
0.732 * * * * [points]: Computing exacts for 271 points
0.732 * * * * [points]: Setting MPFR precision to 64
0.736 * * * * [points]: Setting MPFR precision to 320
0.739 * * * * [points]: Filtering points with unrepresentable outputs
0.740 * * * * [points]: Sampling 14 additional inputs, on iter 2 have 7986 / 8000
0.740 * * * * [points]: Computing exacts for 14 points
0.743 * * * * [points]: Setting MPFR precision to 64
0.743 * * * * [points]: Setting MPFR precision to 320
0.743 * * * * [points]: Filtering points with unrepresentable outputs
0.743 * * * * [points]: Sampled 8000 points with exact outputs
1.324 * [regime-testing]: End program error score: 0.00275