9.923 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.028 * [progress]: [Phase 2 of 3] Improving.
0.029 * [simplify]: Simplifying:
  (sqrt (fabs (- x y)))
0.052 * * [progress]: iteration 1 / 4
0.052 * * * [progress]: picking best candidate
0.055 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (fabs (- x y))))>
0.055 * * * [progress]: localizing error
0.065 * * * [progress]: generating rewritten candidates
0.065 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.068 * * * [progress]: generating series expansions
0.069 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.069 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.069 * [approximate]: Taking taylor expansion of (sqrt (fabs (- x y))) in (x y) around 0
0.069 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in y
0.069 * [taylor]: Taking taylor expansion of (fabs (- x y)) in y
0.070 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.071 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.071 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.071 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in x
0.071 * [taylor]: Taking taylor expansion of (fabs (- x y)) in x
0.071 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.071 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.071 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.071 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in x
0.071 * [taylor]: Taking taylor expansion of (fabs (- x y)) in x
0.071 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.071 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.072 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.072 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in y
0.072 * [taylor]: Taking taylor expansion of (fabs (- x y)) in y
0.072 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.072 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.073 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.073 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.073 * [taylor]: Taking taylor expansion of 0 in y
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify 0 into 0
0.074 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- x y))))) into 0
0.074 * [taylor]: Taking taylor expansion of 0 in y
0.074 * [backup-simplify]: Simplify 0 into 0
0.074 * [backup-simplify]: Simplify 0 into 0
0.074 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- x y))))) into 0
0.075 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (fabs (- x y))))) into 0
0.076 * [taylor]: Taking taylor expansion of 0 in y
0.076 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.076 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.076 * [approximate]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in (x y) around 0
0.076 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in y
0.076 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in y
0.077 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.077 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.077 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.077 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in x
0.077 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in x
0.077 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.077 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.078 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.078 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in x
0.078 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in x
0.078 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.078 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.078 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.078 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in y
0.078 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in y
0.078 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.079 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.079 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.079 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.079 * [taylor]: Taking taylor expansion of 0 in y
0.079 * [backup-simplify]: Simplify 0 into 0
0.079 * [backup-simplify]: Simplify 0 into 0
0.079 * [backup-simplify]: Simplify 0 into 0
0.080 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.080 * [taylor]: Taking taylor expansion of 0 in y
0.080 * [backup-simplify]: Simplify 0 into 0
0.080 * [backup-simplify]: Simplify 0 into 0
0.080 * [backup-simplify]: Simplify 0 into 0
0.081 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.081 * [backup-simplify]: Simplify 0 into 0
0.082 * [backup-simplify]: Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.082 * [taylor]: Taking taylor expansion of 0 in y
0.082 * [backup-simplify]: Simplify 0 into 0
0.082 * [backup-simplify]: Simplify 0 into 0
0.082 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 (/ 1 x)) (/ 1 (/ 1 y))))) into (sqrt (fabs (- x y)))
0.082 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 (- x)) (/ 1 (- y))))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.082 * [approximate]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in (x y) around 0
0.082 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in y
0.082 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in y
0.083 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.083 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.083 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.083 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in x
0.083 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in x
0.083 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.083 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.084 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.084 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in x
0.084 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in x
0.084 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.084 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.084 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.084 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in y
0.084 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in y
0.084 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.085 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.085 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.085 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.085 * [taylor]: Taking taylor expansion of 0 in y
0.085 * [backup-simplify]: Simplify 0 into 0
0.085 * [backup-simplify]: Simplify 0 into 0
0.085 * [backup-simplify]: Simplify 0 into 0
0.086 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.086 * [taylor]: Taking taylor expansion of 0 in y
0.086 * [backup-simplify]: Simplify 0 into 0
0.086 * [backup-simplify]: Simplify 0 into 0
0.086 * [backup-simplify]: Simplify 0 into 0
0.087 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.087 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.088 * [taylor]: Taking taylor expansion of 0 in y
0.088 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify 0 into 0
0.088 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x)))))) into (sqrt (fabs (- x y)))
0.088 * * * [progress]: simplifying candidates
0.089 * [simplify]: Simplifying:
  (log (sqrt (fabs (- x y))))
  (exp (sqrt (fabs (- x y))))
  (* (cbrt (sqrt (fabs (- x y)))) (cbrt (sqrt (fabs (- x y)))))
  (cbrt (sqrt (fabs (- x y))))
  (* (* (sqrt (fabs (- x y))) (sqrt (fabs (- x y)))) (sqrt (fabs (- x y))))
  (sqrt (* (cbrt (fabs (- x y))) (cbrt (fabs (- x y)))))
  (sqrt (cbrt (fabs (- x y))))
  (sqrt (sqrt (fabs (- x y))))
  (sqrt (sqrt (fabs (- x y))))
  (sqrt 1)
  (sqrt (fabs (- x y)))
  (/ 1 2)
  (sqrt (sqrt (fabs (- x y))))
  (sqrt (sqrt (fabs (- x y))))
  (sqrt (fabs (- x y)))
  (sqrt (fabs (- x y)))
  (sqrt (fabs (- x y)))
2.356 * * * [progress]: adding candidates to table
2.398 * [progress]: [Phase 3 of 3] Extracting.
2.400 * [simplify]: Simplifying:
  (sqrt (fabs (- x y)))
3.165 * [regime-testing]: Baseline error score: 0.007250906363295412
3.173 * [regime-testing]: Oracle error score: 0.007250906363295412
3.173 * [regime-testing]: End program error score: 0.007250906363295412