44.026 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.033 * * * [progress]: [2/2] Setting up program.
0.035 * [progress]: [Phase 2 of 3] Improving.
0.036 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: Extracting # 1 : cost  0
0.036 * * [simplify]: Extracting # 2 : cost  0
0.036 * * [simplify]: Extracting # 3 : cost  0
0.036 * * [simplify]: Extracting # 4 : cost  0
0.036 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.038 * * [simplify]: Extracting # 0 : cost  0
0.038 * * [simplify]: Extracting # 1 : cost  0
0.038 * * [simplify]: Extracting # 2 : cost  0
0.038 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.041 * * [simplify]: Extracting # 0 : cost  0
0.041 * * [simplify]: Extracting # 1 : cost  0
0.041 * * [simplify]: Extracting # 2 : cost  0
0.041 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.044 * * [simplify]: Extracting # 0 : cost  0
0.044 * * [simplify]: Extracting # 1 : cost  0
0.044 * * [simplify]: Extracting # 2 : cost  0
0.044 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.053 * * [simplify]: Extracting # 0 : cost  0
0.054 * * [simplify]: Extracting # 1 : cost  0
0.054 * * [simplify]: Extracting # 2 : cost  0
0.054 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.081 * * [simplify]: Extracting # 0 : cost  0
0.081 * * [simplify]: Extracting # 1 : cost  0
0.082 * * [simplify]: Extracting # 2 : cost  0
0.082 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.133 * * [simplify]: Extracting # 0 : cost  0
0.134 * * [simplify]: Extracting # 1 : cost  0
0.134 * * [simplify]: Extracting # 2 : cost  0
0.134 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.248 * * [simplify]: Extracting # 0 : cost  0
0.249 * * [simplify]: Extracting # 1 : cost  0
0.249 * * [simplify]: Extracting # 2 : cost  0
0.250 * * [simplify]: Extracting # 3 : cost  0
0.250 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.276 * * [simplify]: Extracting # 0 : cost  0
1.278 * * [simplify]: Extracting # 1 : cost  0
1.280 * * [simplify]: Extracting # 2 : cost  0
1.282 * * [simplify]: Extracting # 3 : cost  0
1.284 * * [simplify]: Extracting # 4 : cost  0
1.285 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
11.435 * * [simplify]: Extracting # 0 : cost  0
11.462 * * [simplify]: Extracting # 1 : cost  0
11.465 * * [simplify]: Extracting # 2 : cost  0
11.468 * * [simplify]: Extracting # 3 : cost  0
11.471 * * [simplify]: Extracting # 4 : cost  0
11.474 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
11.474 * [simplify]: Simplified to:
  (- (* x x) (* y y))
11.475 * * [progress]: iteration 1 / 4
11.475 * * * [progress]: picking best candidate
11.476 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
11.476 * * * [progress]: localizing error
11.481 * * * [progress]: generating rewritten candidates
11.481 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
11.490 * * * [progress]: generating series expansions
11.491 * * * * [progress]: [ 1 / 1 ] generating series at (2)
11.491 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
11.491 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
11.491 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
11.491 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.491 * [taylor]: Taking taylor expansion of x in y
11.491 * [backup-simplify]: Simplify x into x
11.491 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.491 * [taylor]: Taking taylor expansion of y in y
11.491 * [backup-simplify]: Simplify 0 into 0
11.491 * [backup-simplify]: Simplify 1 into 1
11.491 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.491 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.491 * [taylor]: Taking taylor expansion of x in x
11.491 * [backup-simplify]: Simplify 0 into 0
11.491 * [backup-simplify]: Simplify 1 into 1
11.491 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.491 * [taylor]: Taking taylor expansion of y in x
11.491 * [backup-simplify]: Simplify y into y
11.491 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
11.491 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.491 * [taylor]: Taking taylor expansion of x in x
11.491 * [backup-simplify]: Simplify 0 into 0
11.491 * [backup-simplify]: Simplify 1 into 1
11.491 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.491 * [taylor]: Taking taylor expansion of y in x
11.491 * [backup-simplify]: Simplify y into y
11.491 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.491 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
11.491 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
11.492 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
11.492 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.492 * [taylor]: Taking taylor expansion of y in y
11.492 * [backup-simplify]: Simplify 0 into 0
11.492 * [backup-simplify]: Simplify 1 into 1
11.492 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.492 * [backup-simplify]: Simplify (- 0) into 0
11.492 * [backup-simplify]: Simplify (+ 0 0) into 0
11.492 * [taylor]: Taking taylor expansion of 0 in y
11.493 * [backup-simplify]: Simplify 0 into 0
11.493 * [backup-simplify]: Simplify 0 into 0
11.493 * [backup-simplify]: Simplify (* 1 1) into 1
11.493 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.493 * [backup-simplify]: Simplify (- 0) into 0
11.494 * [backup-simplify]: Simplify (+ 1 0) into 1
11.494 * [taylor]: Taking taylor expansion of 1 in y
11.494 * [backup-simplify]: Simplify 1 into 1
11.494 * [backup-simplify]: Simplify 1 into 1
11.494 * [backup-simplify]: Simplify 0 into 0
11.494 * [backup-simplify]: Simplify (* 1 1) into 1
11.494 * [backup-simplify]: Simplify (- 1) into -1
11.494 * [backup-simplify]: Simplify -1 into -1
11.495 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.495 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
11.495 * [backup-simplify]: Simplify (- 0) into 0
11.496 * [backup-simplify]: Simplify (+ 0 0) into 0
11.496 * [taylor]: Taking taylor expansion of 0 in y
11.496 * [backup-simplify]: Simplify 0 into 0
11.496 * [backup-simplify]: Simplify 0 into 0
11.496 * [backup-simplify]: Simplify 0 into 0
11.496 * [backup-simplify]: Simplify 0 into 0
11.497 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.497 * [backup-simplify]: Simplify (- 0) into 0
11.497 * [backup-simplify]: Simplify 0 into 0
11.497 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.498 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
11.498 * [backup-simplify]: Simplify (- 0) into 0
11.499 * [backup-simplify]: Simplify (+ 0 0) into 0
11.499 * [taylor]: Taking taylor expansion of 0 in y
11.499 * [backup-simplify]: Simplify 0 into 0
11.499 * [backup-simplify]: Simplify 0 into 0
11.499 * [backup-simplify]: Simplify 0 into 0
11.499 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
11.499 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.499 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.499 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.499 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.499 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.499 * [taylor]: Taking taylor expansion of x in y
11.499 * [backup-simplify]: Simplify x into x
11.499 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.499 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.499 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.499 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.499 * [taylor]: Taking taylor expansion of y in y
11.499 * [backup-simplify]: Simplify 0 into 0
11.499 * [backup-simplify]: Simplify 1 into 1
11.500 * [backup-simplify]: Simplify (* 1 1) into 1
11.500 * [backup-simplify]: Simplify (/ 1 1) into 1
11.500 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.500 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.500 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.500 * [taylor]: Taking taylor expansion of x in x
11.500 * [backup-simplify]: Simplify 0 into 0
11.500 * [backup-simplify]: Simplify 1 into 1
11.501 * [backup-simplify]: Simplify (* 1 1) into 1
11.501 * [backup-simplify]: Simplify (/ 1 1) into 1
11.501 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.501 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.501 * [taylor]: Taking taylor expansion of y in x
11.501 * [backup-simplify]: Simplify y into y
11.501 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.501 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.501 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.501 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.501 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.501 * [taylor]: Taking taylor expansion of x in x
11.501 * [backup-simplify]: Simplify 0 into 0
11.501 * [backup-simplify]: Simplify 1 into 1
11.501 * [backup-simplify]: Simplify (* 1 1) into 1
11.502 * [backup-simplify]: Simplify (/ 1 1) into 1
11.502 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.502 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.502 * [taylor]: Taking taylor expansion of y in x
11.502 * [backup-simplify]: Simplify y into y
11.502 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.502 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.502 * [backup-simplify]: Simplify (+ 1 0) into 1
11.502 * [taylor]: Taking taylor expansion of 1 in y
11.502 * [backup-simplify]: Simplify 1 into 1
11.503 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.503 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.504 * [backup-simplify]: Simplify (+ 0 0) into 0
11.504 * [taylor]: Taking taylor expansion of 0 in y
11.504 * [backup-simplify]: Simplify 0 into 0
11.504 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.505 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.505 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.505 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.505 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.505 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.505 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.505 * [taylor]: Taking taylor expansion of y in y
11.505 * [backup-simplify]: Simplify 0 into 0
11.505 * [backup-simplify]: Simplify 1 into 1
11.505 * [backup-simplify]: Simplify (* 1 1) into 1
11.506 * [backup-simplify]: Simplify (/ 1 1) into 1
11.506 * [backup-simplify]: Simplify (- 1) into -1
11.506 * [backup-simplify]: Simplify -1 into -1
11.506 * [backup-simplify]: Simplify 1 into 1
11.506 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.507 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.507 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.507 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.507 * [backup-simplify]: Simplify (- 0) into 0
11.508 * [backup-simplify]: Simplify (+ 0 0) into 0
11.508 * [taylor]: Taking taylor expansion of 0 in y
11.508 * [backup-simplify]: Simplify 0 into 0
11.508 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.509 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.509 * [backup-simplify]: Simplify (- 0) into 0
11.509 * [backup-simplify]: Simplify 0 into 0
11.509 * [backup-simplify]: Simplify 0 into 0
11.509 * [backup-simplify]: Simplify 0 into 0
11.510 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.510 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.510 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.516 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.517 * [backup-simplify]: Simplify (- 0) into 0
11.517 * [backup-simplify]: Simplify (+ 0 0) into 0
11.517 * [taylor]: Taking taylor expansion of 0 in y
11.517 * [backup-simplify]: Simplify 0 into 0
11.518 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.519 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.520 * [backup-simplify]: Simplify (- 0) into 0
11.520 * [backup-simplify]: Simplify 0 into 0
11.520 * [backup-simplify]: Simplify 0 into 0
11.520 * [backup-simplify]: Simplify 0 into 0
11.520 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
11.521 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
11.521 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
11.521 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
11.521 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
11.521 * [taylor]: Taking taylor expansion of (pow x 2) in y
11.521 * [taylor]: Taking taylor expansion of x in y
11.521 * [backup-simplify]: Simplify x into x
11.521 * [backup-simplify]: Simplify (* x x) into (pow x 2)
11.521 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
11.521 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.521 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.521 * [taylor]: Taking taylor expansion of y in y
11.521 * [backup-simplify]: Simplify 0 into 0
11.521 * [backup-simplify]: Simplify 1 into 1
11.522 * [backup-simplify]: Simplify (* 1 1) into 1
11.522 * [backup-simplify]: Simplify (/ 1 1) into 1
11.522 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.522 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.522 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.522 * [taylor]: Taking taylor expansion of x in x
11.522 * [backup-simplify]: Simplify 0 into 0
11.522 * [backup-simplify]: Simplify 1 into 1
11.523 * [backup-simplify]: Simplify (* 1 1) into 1
11.523 * [backup-simplify]: Simplify (/ 1 1) into 1
11.523 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.523 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.523 * [taylor]: Taking taylor expansion of y in x
11.523 * [backup-simplify]: Simplify y into y
11.523 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.524 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.524 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
11.524 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
11.524 * [taylor]: Taking taylor expansion of (pow x 2) in x
11.524 * [taylor]: Taking taylor expansion of x in x
11.524 * [backup-simplify]: Simplify 0 into 0
11.524 * [backup-simplify]: Simplify 1 into 1
11.524 * [backup-simplify]: Simplify (* 1 1) into 1
11.525 * [backup-simplify]: Simplify (/ 1 1) into 1
11.525 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
11.525 * [taylor]: Taking taylor expansion of (pow y 2) in x
11.525 * [taylor]: Taking taylor expansion of y in x
11.525 * [backup-simplify]: Simplify y into y
11.525 * [backup-simplify]: Simplify (* y y) into (pow y 2)
11.525 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
11.525 * [backup-simplify]: Simplify (+ 1 0) into 1
11.525 * [taylor]: Taking taylor expansion of 1 in y
11.525 * [backup-simplify]: Simplify 1 into 1
11.526 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.527 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.527 * [backup-simplify]: Simplify (+ 0 0) into 0
11.527 * [taylor]: Taking taylor expansion of 0 in y
11.527 * [backup-simplify]: Simplify 0 into 0
11.528 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.529 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.529 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
11.529 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
11.529 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
11.529 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
11.529 * [taylor]: Taking taylor expansion of (pow y 2) in y
11.529 * [taylor]: Taking taylor expansion of y in y
11.529 * [backup-simplify]: Simplify 0 into 0
11.529 * [backup-simplify]: Simplify 1 into 1
11.530 * [backup-simplify]: Simplify (* 1 1) into 1
11.530 * [backup-simplify]: Simplify (/ 1 1) into 1
11.530 * [backup-simplify]: Simplify (- 1) into -1
11.530 * [backup-simplify]: Simplify -1 into -1
11.530 * [backup-simplify]: Simplify 1 into 1
11.531 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
11.531 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.531 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
11.531 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
11.532 * [backup-simplify]: Simplify (- 0) into 0
11.532 * [backup-simplify]: Simplify (+ 0 0) into 0
11.532 * [taylor]: Taking taylor expansion of 0 in y
11.532 * [backup-simplify]: Simplify 0 into 0
11.532 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
11.533 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
11.533 * [backup-simplify]: Simplify (- 0) into 0
11.533 * [backup-simplify]: Simplify 0 into 0
11.533 * [backup-simplify]: Simplify 0 into 0
11.533 * [backup-simplify]: Simplify 0 into 0
11.534 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
11.534 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.535 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
11.535 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
11.535 * [backup-simplify]: Simplify (- 0) into 0
11.535 * [backup-simplify]: Simplify (+ 0 0) into 0
11.535 * [taylor]: Taking taylor expansion of 0 in y
11.535 * [backup-simplify]: Simplify 0 into 0
11.536 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
11.536 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
11.537 * [backup-simplify]: Simplify (- 0) into 0
11.537 * [backup-simplify]: Simplify 0 into 0
11.537 * [backup-simplify]: Simplify 0 into 0
11.537 * [backup-simplify]: Simplify 0 into 0
11.537 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
11.537 * * * [progress]: simplifying candidates
11.537 * [simplify]: Simplifying:
  (fma x x (- (* y y)))
  (fma (- y) y (* y y))
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (/ (exp (* x x)) (exp (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (* (* (- (* x x) (* y y)) (- (* x x) (* y y))) (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (+ (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* y y))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (+ (* x x) (* y y))
  (+ x y)
  (- x y)
  (- (* y y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
11.538 * * [simplify]: Extracting # 0 : cost  0
11.538 * * [simplify]: Extracting # 1 : cost  0
11.538 * * [simplify]: Extracting # 2 : cost  0
11.538 * * [simplify]: Extracting # 3 : cost  0
11.538 * * [simplify]: Extracting # 4 : cost  0
11.538 * * [simplify]: Extracting # 5 : cost  0
11.538 * * [simplify]: iteration  0 :  38  enodes  (cost  214 )
11.547 * * [simplify]: Extracting # 0 : cost  0
11.547 * * [simplify]: Extracting # 1 : cost  0
11.547 * * [simplify]: Extracting # 2 : cost  0
11.547 * * [simplify]: Extracting # 3 : cost  0
11.547 * * [simplify]: Extracting # 4 : cost  0
11.547 * * [simplify]: iteration  1 :  100  enodes  (cost  205 )
11.591 * * [simplify]: Extracting # 0 : cost  0
11.591 * * [simplify]: Extracting # 1 : cost  0
11.591 * * [simplify]: Extracting # 2 : cost  0
11.592 * * [simplify]: Extracting # 3 : cost  0
11.592 * * [simplify]: Extracting # 4 : cost  0
11.592 * * [simplify]: iteration  2 :  291  enodes  (cost  175 )
12.121 * * [simplify]: Extracting # 0 : cost  0
12.122 * * [simplify]: Extracting # 1 : cost  0
12.123 * * [simplify]: Extracting # 2 : cost  0
12.124 * * [simplify]: Extracting # 3 : cost  0
12.125 * * [simplify]: Extracting # 4 : cost  0
12.126 * * [simplify]: iteration  3 :  922  enodes  (cost  175 )
13.322 * * [simplify]: Extracting # 0 : cost  0
13.330 * * [simplify]: Extracting # 1 : cost  0
13.337 * * [simplify]: Extracting # 2 : cost  0
13.343 * * [simplify]: Extracting # 3 : cost  0
13.349 * * [simplify]: Extracting # 4 : cost  0
13.356 * * [simplify]: iteration  4 :  4017  enodes  (cost  170 )
14.786 * * [simplify]: Extracting # 0 : cost  0
14.796 * * [simplify]: Extracting # 1 : cost  0
14.805 * * [simplify]: iteration done:  5000  enodes  (cost  170 )
14.806 * [simplify]: Simplified to:
  (fma x x (- (* y y)))
  0
  (expm1 (- (* x x) (* y y)))
  (log1p (- (* x x) (* y y)))
  (- (* y y))
  (exp (- (* x x) (* y y)))
  (log (- (* x x) (* y y)))
  (exp (- (* x x) (* y y)))
  (* (cbrt (- (* x x) (* y y))) (cbrt (- (* x x) (* y y))))
  (cbrt (- (* x x) (* y y)))
  (pow (fma x x (- (* y y))) 3)
  (sqrt (- (* x x) (* y y)))
  (sqrt (- (* x x) (* y y)))
  (- (pow x 6) (pow y 6))
  (fma (* y y) (fma x x (pow y 2)) (pow x 4))
  (- (* y y))
  (- (pow x 4) (pow y 4))
  (fma x x (pow y 2))
  (+ x y)
  (- x y)
  (- (* y y))
  (fma x x (- (* y y)))
  (fma x x (- (* y y)))
  (fma x x (- (* y y)))
14.806 * * * [progress]: adding candidates to table
14.858 * * [progress]: iteration 2 / 4
14.859 * * * [progress]: picking best candidate
14.861 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
14.861 * * * [progress]: localizing error
14.872 * * * [progress]: generating rewritten candidates
14.872 * * * [progress]: generating series expansions
14.872 * * * [progress]: simplifying candidates
14.872 * [simplify]: Simplifying:
  
14.872 * * [simplify]: Extracting # 0 : cost  0
14.872 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
14.872 * * [simplify]: Extracting # 0 : cost  0
14.872 * * [simplify]: iteration done:  0  enodes  (cost  0 )
14.872 * [simplify]: Simplified to:
  
14.872 * * * [progress]: adding candidates to table
14.873 * [progress]: [Phase 3 of 3] Extracting.
14.875 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
14.875 * * [simplify]: Extracting # 0 : cost  0
14.875 * * [simplify]: Extracting # 1 : cost  0
14.876 * * [simplify]: Extracting # 2 : cost  0
14.876 * * [simplify]: Extracting # 3 : cost  0
14.876 * * [simplify]: Extracting # 4 : cost  0
14.876 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
14.876 * * [simplify]: Extracting # 0 : cost  0
14.876 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
14.877 * * [simplify]: Extracting # 0 : cost  0
14.877 * * [simplify]: iteration done:  7  enodes  (cost  7 )
14.877 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
16.208 * [regime-testing]: Baseline error score: 0.0010001250156269534
16.210 * [regime-testing]: Oracle error score: 0.0010001250156269534
16.210 * [regime-testing]: End program error score: 0.0010001250156269534