23.801 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.026 * [simplify]: Simplifying:
  (sqrt (fabs (- x y)))
0.027 * * [simplify]: Extracting # 0 : cost  0
0.027 * * [simplify]: Extracting # 1 : cost  0
0.027 * * [simplify]: Extracting # 2 : cost  0
0.027 * * [simplify]: Extracting # 3 : cost  0
0.027 * * [simplify]: Extracting # 4 : cost  0
0.027 * * [simplify]: Extracting # 5 : cost  0
0.027 * * [simplify]: iteration  0 :  5  enodes  (cost  5 )
0.028 * * [simplify]: Extracting # 0 : cost  0
0.028 * * [simplify]: Extracting # 1 : cost  0
0.028 * * [simplify]: Extracting # 2 : cost  0
0.028 * * [simplify]: iteration  1 :  7  enodes  (cost  5 )
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: iteration  2 :  8  enodes  (cost  5 )
0.032 * * [simplify]: Extracting # 0 : cost  0
0.032 * * [simplify]: iteration done:  8  enodes  (cost  5 )
0.032 * [simplify]: Simplified to:
  (sqrt (fabs (- x y)))
0.032 * * [progress]: iteration 1 / 4
0.032 * * * [progress]: picking best candidate
0.034 * * * * [pick]: Picked  #<alt (λ (x y) (sqrt (fabs (- x y))))>
0.034 * * * [progress]: localizing error
0.044 * * * [progress]: generating rewritten candidates
0.044 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.046 * * * [progress]: generating series expansions
0.046 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.046 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.046 * [approximate]: Taking taylor expansion of (sqrt (fabs (- x y))) in (x y) around 0
0.046 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in y
0.046 * [taylor]: Taking taylor expansion of (fabs (- x y)) in y
0.047 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.047 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.047 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.048 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in x
0.048 * [taylor]: Taking taylor expansion of (fabs (- x y)) in x
0.048 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.048 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.048 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.048 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in x
0.048 * [taylor]: Taking taylor expansion of (fabs (- x y)) in x
0.048 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.048 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.048 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.048 * [taylor]: Taking taylor expansion of (sqrt (fabs (- x y))) in y
0.048 * [taylor]: Taking taylor expansion of (fabs (- x y)) in y
0.048 * [backup-simplify]: Simplify (fabs (- x y)) into (fabs (- x y))
0.048 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.048 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- x y))))) into 0
0.048 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.048 * [taylor]: Taking taylor expansion of 0 in y
0.048 * [backup-simplify]: Simplify 0 into 0
0.048 * [backup-simplify]: Simplify 0 into 0
0.048 * [backup-simplify]: Simplify 0 into 0
0.049 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- x y))))) into 0
0.049 * [taylor]: Taking taylor expansion of 0 in y
0.049 * [backup-simplify]: Simplify 0 into 0
0.049 * [backup-simplify]: Simplify 0 into 0
0.049 * [backup-simplify]: Simplify 0 into 0
0.050 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- x y))))) into 0
0.050 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (fabs (- x y))))) into 0
0.051 * [taylor]: Taking taylor expansion of 0 in y
0.051 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify 0 into 0
0.051 * [backup-simplify]: Simplify (sqrt (fabs (- x y))) into (sqrt (fabs (- x y)))
0.051 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.051 * [approximate]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in (x y) around 0
0.051 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in y
0.051 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in y
0.051 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.051 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.051 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.051 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in x
0.051 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in x
0.051 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.051 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.051 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.052 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in x
0.052 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in x
0.052 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.052 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.052 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.052 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 x) (/ 1 y)))) in y
0.052 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 x) (/ 1 y))) in y
0.052 * [backup-simplify]: Simplify (fabs (- (/ 1 x) (/ 1 y))) into (fabs (- (/ 1 x) (/ 1 y)))
0.052 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.052 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.052 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 x) (/ 1 y)))) into (sqrt (fabs (- (/ 1 x) (/ 1 y))))
0.052 * [taylor]: Taking taylor expansion of 0 in y
0.052 * [backup-simplify]: Simplify 0 into 0
0.052 * [backup-simplify]: Simplify 0 into 0
0.052 * [backup-simplify]: Simplify 0 into 0
0.053 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.053 * [taylor]: Taking taylor expansion of 0 in y
0.053 * [backup-simplify]: Simplify 0 into 0
0.053 * [backup-simplify]: Simplify 0 into 0
0.053 * [backup-simplify]: Simplify 0 into 0
0.054 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.054 * [backup-simplify]: Simplify 0 into 0
0.054 * [backup-simplify]: Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (fabs (- (/ 1 x) (/ 1 y)))))) into 0
0.054 * [taylor]: Taking taylor expansion of 0 in y
0.054 * [backup-simplify]: Simplify 0 into 0
0.054 * [backup-simplify]: Simplify 0 into 0
0.054 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 (/ 1 x)) (/ 1 (/ 1 y))))) into (sqrt (fabs (- x y)))
0.054 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 (- x)) (/ 1 (- y))))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.054 * [approximate]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in (x y) around 0
0.054 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in y
0.054 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in y
0.055 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.055 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.055 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.055 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in x
0.055 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in x
0.055 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.055 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.055 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.055 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in x
0.055 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in x
0.055 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.055 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.055 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.056 * [taylor]: Taking taylor expansion of (sqrt (fabs (- (/ 1 y) (/ 1 x)))) in y
0.056 * [taylor]: Taking taylor expansion of (fabs (- (/ 1 y) (/ 1 x))) in y
0.056 * [backup-simplify]: Simplify (fabs (- (/ 1 y) (/ 1 x))) into (fabs (- (/ 1 y) (/ 1 x)))
0.056 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.056 * [backup-simplify]: Simplify (/ 0 (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.056 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 y) (/ 1 x)))) into (sqrt (fabs (- (/ 1 y) (/ 1 x))))
0.056 * [taylor]: Taking taylor expansion of 0 in y
0.056 * [backup-simplify]: Simplify 0 into 0
0.056 * [backup-simplify]: Simplify 0 into 0
0.056 * [backup-simplify]: Simplify 0 into 0
0.057 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.057 * [taylor]: Taking taylor expansion of 0 in y
0.057 * [backup-simplify]: Simplify 0 into 0
0.057 * [backup-simplify]: Simplify 0 into 0
0.057 * [backup-simplify]: Simplify 0 into 0
0.057 * [backup-simplify]: Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.057 * [backup-simplify]: Simplify 0 into 0
0.058 * [backup-simplify]: Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (fabs (- (/ 1 y) (/ 1 x)))))) into 0
0.058 * [taylor]: Taking taylor expansion of 0 in y
0.058 * [backup-simplify]: Simplify 0 into 0
0.058 * [backup-simplify]: Simplify 0 into 0
0.058 * [backup-simplify]: Simplify (sqrt (fabs (- (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x)))))) into (sqrt (fabs (- x y)))
0.058 * * * [progress]: simplifying candidates
0.058 * [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)))
0.059 * * [simplify]: Extracting # 0 : cost  0
0.059 * * [simplify]: Extracting # 1 : cost  0
0.059 * * [simplify]: Extracting # 2 : cost  0
0.059 * * [simplify]: Extracting # 3 : cost  0
0.059 * * [simplify]: Extracting # 4 : cost  0
0.059 * * [simplify]: Extracting # 5 : cost  0
0.059 * * [simplify]: Extracting # 6 : cost  0
0.059 * * [simplify]: Extracting # 7 : cost  0
0.059 * * [simplify]: iteration  0 :  20  enodes  (cost  115 )
0.064 * * [simplify]: Extracting # 0 : cost  0
0.064 * * [simplify]: Extracting # 1 : cost  0
0.064 * * [simplify]: Extracting # 2 : cost  0
0.065 * * [simplify]: iteration  1 :  27  enodes  (cost  99 )
0.071 * * [simplify]: Extracting # 0 : cost  0
0.071 * * [simplify]: Extracting # 1 : cost  0
0.071 * * [simplify]: Extracting # 2 : cost  0
0.071 * * [simplify]: Extracting # 3 : cost  0
0.071 * * [simplify]: iteration  2 :  31  enodes  (cost  96 )
0.078 * * [simplify]: Extracting # 0 : cost  0
0.078 * * [simplify]: Extracting # 1 : cost  0
0.078 * * [simplify]: Extracting # 2 : cost  0
0.078 * * [simplify]: Extracting # 3 : cost  0
0.079 * * [simplify]: iteration  3 :  35  enodes  (cost  96 )
0.087 * * [simplify]: Extracting # 0 : cost  0
0.087 * * [simplify]: Extracting # 1 : cost  0
0.087 * * [simplify]: Extracting # 2 : cost  0
0.088 * * [simplify]: Extracting # 3 : cost  0
0.088 * * [simplify]: Extracting # 4 : cost  0
0.088 * * [simplify]: iteration  4 :  41  enodes  (cost  96 )
0.094 * * [simplify]: Extracting # 0 : cost  0
0.094 * * [simplify]: Extracting # 1 : cost  0
0.094 * * [simplify]: Extracting # 2 : cost  0
0.094 * * [simplify]: Extracting # 3 : cost  0
0.094 * * [simplify]: Extracting # 4 : cost  0
0.094 * * [simplify]: iteration  5 :  51  enodes  (cost  96 )
0.105 * * [simplify]: Extracting # 0 : cost  0
0.106 * * [simplify]: Extracting # 1 : cost  0
0.106 * * [simplify]: Extracting # 2 : cost  0
0.106 * * [simplify]: Extracting # 3 : cost  0
0.106 * * [simplify]: Extracting # 4 : cost  0
0.106 * * [simplify]: iteration  6 :  72  enodes  (cost  96 )
0.134 * * [simplify]: Extracting # 0 : cost  0
0.134 * * [simplify]: Extracting # 1 : cost  0
0.134 * * [simplify]: Extracting # 2 : cost  0
0.134 * * [simplify]: Extracting # 3 : cost  0
0.134 * * [simplify]: iteration  7 :  148  enodes  (cost  96 )
0.239 * * [simplify]: Extracting # 0 : cost  0
0.239 * * [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
0.240 * * [simplify]: iteration  8 :  445  enodes  (cost  96 )
1.061 * * [simplify]: Extracting # 0 : cost  0
1.063 * * [simplify]: Extracting # 1 : cost  0
1.064 * * [simplify]: Extracting # 2 : cost  0
1.069 * * [simplify]: Extracting # 3 : cost  0
1.071 * * [simplify]: Extracting # 4 : cost  0
1.073 * * [simplify]: iteration  9 :  1868  enodes  (cost  96 )
2.158 * * [simplify]: Extracting # 0 : cost  0
2.162 * * [simplify]: Extracting # 1 : cost  0
2.168 * * [simplify]: Extracting # 2 : cost  0
2.179 * * [simplify]: Extracting # 3 : cost  0
2.184 * * [simplify]: iteration done:  5000  enodes  (cost  96 )
2.185 * [simplify]: Simplified to:
  (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))))
  (pow (sqrt (fabs (- x y))) 3)
  (fabs (cbrt (fabs (- x y))))
  (sqrt (cbrt (fabs (- x y))))
  (sqrt (sqrt (fabs (- x y))))
  (sqrt (sqrt (fabs (- x y))))
  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)))
2.185 * * * [progress]: adding candidates to table
2.211 * [progress]: [Phase 3 of 3] Extracting.
2.213 * [simplify]: Simplifying:
  (sqrt (fabs (- x y)))
2.213 * * [simplify]: Extracting # 0 : cost  0
2.213 * * [simplify]: Extracting # 1 : cost  0
2.213 * * [simplify]: Extracting # 2 : cost  0
2.213 * * [simplify]: Extracting # 3 : cost  0
2.213 * * [simplify]: Extracting # 4 : cost  0
2.213 * * [simplify]: Extracting # 5 : cost  0
2.213 * * [simplify]: iteration  0 :  5  enodes  (cost  5 )
2.213 * * [simplify]: Extracting # 0 : cost  0
2.213 * * [simplify]: iteration done:  5  enodes  (cost  5 )
2.213 * [simplify]: Simplified to:
  (sqrt (fabs (- x y)))
2.921 * [regime-testing]: Baseline error score: 0.008251031378922365
2.923 * [regime-testing]: Oracle error score: 0.008251031378922365
2.923 * [regime-testing]: End program error score: 0.008251031378922365