27.946 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.033 * [progress]: [Phase 2 of 3] Improving.
0.033 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
0.033 * * [simplify]: Extracting # 0 : cost  0
0.033 * * [simplify]: Extracting # 1 : cost  0
0.033 * * [simplify]: Extracting # 2 : cost  0
0.033 * * [simplify]: Extracting # 3 : cost  0
0.034 * * [simplify]: Extracting # 4 : cost  0
0.034 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.034 * * [simplify]: Extracting # 0 : cost  0
0.034 * * [simplify]: Extracting # 1 : cost  0
0.034 * * [simplify]: Extracting # 2 : cost  0
0.034 * * [simplify]: iteration  1 :  9  enodes  (cost  7 )
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: Extracting # 1 : cost  0
0.036 * * [simplify]: Extracting # 2 : cost  0
0.036 * * [simplify]: iteration  2 :  24  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  3 :  53  enodes  (cost  7 )
0.061 * * [simplify]: Extracting # 0 : cost  0
0.061 * * [simplify]: Extracting # 1 : cost  0
0.061 * * [simplify]: Extracting # 2 : cost  0
0.061 * * [simplify]: iteration  4 :  122  enodes  (cost  7 )
0.089 * * [simplify]: Extracting # 0 : cost  0
0.089 * * [simplify]: Extracting # 1 : cost  0
0.089 * * [simplify]: Extracting # 2 : cost  0
0.090 * * [simplify]: iteration  5 :  176  enodes  (cost  7 )
0.193 * * [simplify]: Extracting # 0 : cost  0
0.193 * * [simplify]: Extracting # 1 : cost  0
0.193 * * [simplify]: Extracting # 2 : cost  0
0.194 * * [simplify]: iteration  6 :  261  enodes  (cost  7 )
0.336 * * [simplify]: Extracting # 0 : cost  0
0.337 * * [simplify]: Extracting # 1 : cost  0
0.338 * * [simplify]: Extracting # 2 : cost  0
0.338 * * [simplify]: Extracting # 3 : cost  0
0.339 * * [simplify]: Extracting # 4 : cost  0
0.340 * * [simplify]: iteration  7 :  399  enodes  (cost  7 )
0.722 * * [simplify]: Extracting # 0 : cost  0
0.724 * * [simplify]: Extracting # 1 : cost  0
0.725 * * [simplify]: Extracting # 2 : cost  0
0.726 * * [simplify]: iteration  8 :  787  enodes  (cost  7 )
2.886 * * [simplify]: Extracting # 0 : cost  0
2.889 * * [simplify]: Extracting # 1 : cost  0
2.890 * * [simplify]: Extracting # 2 : cost  0
2.891 * * [simplify]: Extracting # 3 : cost  0
2.892 * * [simplify]: Extracting # 4 : cost  0
2.893 * * [simplify]: iteration  9 :  1977  enodes  (cost  7 )
5.338 * * [simplify]: Extracting # 0 : cost  0
5.344 * * [simplify]: Extracting # 1 : cost  0
5.349 * * [simplify]: Extracting # 2 : cost  0
5.353 * * [simplify]: Extracting # 3 : cost  0
5.357 * * [simplify]: Extracting # 4 : cost  0
5.361 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
5.362 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
5.362 * * [progress]: iteration 1 / 4
5.362 * * * [progress]: picking best candidate
5.365 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
5.365 * * * [progress]: localizing error
5.385 * * * [progress]: generating rewritten candidates
5.385 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
5.453 * * * [progress]: generating series expansions
5.453 * * * * [progress]: [ 1 / 1 ] generating series at (2)
5.453 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
5.453 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
5.453 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
5.453 * [taylor]: Taking taylor expansion of (+ x y) in y
5.453 * [taylor]: Taking taylor expansion of x in y
5.453 * [backup-simplify]: Simplify x into x
5.453 * [taylor]: Taking taylor expansion of y in y
5.453 * [backup-simplify]: Simplify 0 into 0
5.453 * [backup-simplify]: Simplify 1 into 1
5.453 * [taylor]: Taking taylor expansion of (- x y) in y
5.453 * [taylor]: Taking taylor expansion of x in y
5.453 * [backup-simplify]: Simplify x into x
5.453 * [taylor]: Taking taylor expansion of y in y
5.453 * [backup-simplify]: Simplify 0 into 0
5.453 * [backup-simplify]: Simplify 1 into 1
5.453 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
5.453 * [taylor]: Taking taylor expansion of (+ x y) in x
5.453 * [taylor]: Taking taylor expansion of x in x
5.453 * [backup-simplify]: Simplify 0 into 0
5.453 * [backup-simplify]: Simplify 1 into 1
5.453 * [taylor]: Taking taylor expansion of y in x
5.453 * [backup-simplify]: Simplify y into y
5.453 * [taylor]: Taking taylor expansion of (- x y) in x
5.454 * [taylor]: Taking taylor expansion of x in x
5.454 * [backup-simplify]: Simplify 0 into 0
5.454 * [backup-simplify]: Simplify 1 into 1
5.454 * [taylor]: Taking taylor expansion of y in x
5.454 * [backup-simplify]: Simplify y into y
5.454 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
5.454 * [taylor]: Taking taylor expansion of (+ x y) in x
5.454 * [taylor]: Taking taylor expansion of x in x
5.454 * [backup-simplify]: Simplify 0 into 0
5.454 * [backup-simplify]: Simplify 1 into 1
5.454 * [taylor]: Taking taylor expansion of y in x
5.454 * [backup-simplify]: Simplify y into y
5.454 * [taylor]: Taking taylor expansion of (- x y) in x
5.454 * [taylor]: Taking taylor expansion of x in x
5.454 * [backup-simplify]: Simplify 0 into 0
5.454 * [backup-simplify]: Simplify 1 into 1
5.454 * [taylor]: Taking taylor expansion of y in x
5.454 * [backup-simplify]: Simplify y into y
5.454 * [backup-simplify]: Simplify (+ 0 y) into y
5.454 * [backup-simplify]: Simplify (- y) into (- y)
5.454 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
5.454 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
5.454 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
5.454 * [taylor]: Taking taylor expansion of -1 in y
5.454 * [backup-simplify]: Simplify -1 into -1
5.454 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.454 * [taylor]: Taking taylor expansion of y in y
5.454 * [backup-simplify]: Simplify 0 into 0
5.454 * [backup-simplify]: Simplify 1 into 1
5.455 * [backup-simplify]: Simplify (- 0) into 0
5.456 * [backup-simplify]: Simplify (+ 1 0) into 1
5.456 * [backup-simplify]: Simplify (+ 1 0) into 1
5.457 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
5.457 * [taylor]: Taking taylor expansion of 0 in y
5.457 * [backup-simplify]: Simplify 0 into 0
5.457 * [backup-simplify]: Simplify 0 into 0
5.457 * [backup-simplify]: Simplify (- 0) into 0
5.457 * [backup-simplify]: Simplify (+ 0 0) into 0
5.458 * [backup-simplify]: Simplify (+ 0 0) into 0
5.458 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
5.458 * [taylor]: Taking taylor expansion of 1 in y
5.458 * [backup-simplify]: Simplify 1 into 1
5.458 * [backup-simplify]: Simplify 1 into 1
5.458 * [backup-simplify]: Simplify 0 into 0
5.459 * [backup-simplify]: Simplify (* 1 1) into 1
5.459 * [backup-simplify]: Simplify (* -1 1) into -1
5.459 * [backup-simplify]: Simplify -1 into -1
5.460 * [backup-simplify]: Simplify (- 0) into 0
5.460 * [backup-simplify]: Simplify (+ 0 0) into 0
5.460 * [backup-simplify]: Simplify (+ 0 0) into 0
5.461 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
5.461 * [taylor]: Taking taylor expansion of 0 in y
5.461 * [backup-simplify]: Simplify 0 into 0
5.461 * [backup-simplify]: Simplify 0 into 0
5.461 * [backup-simplify]: Simplify 0 into 0
5.461 * [backup-simplify]: Simplify 0 into 0
5.462 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.463 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
5.463 * [backup-simplify]: Simplify 0 into 0
5.463 * [backup-simplify]: Simplify (- 0) into 0
5.463 * [backup-simplify]: Simplify (+ 0 0) into 0
5.464 * [backup-simplify]: Simplify (+ 0 0) into 0
5.465 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
5.465 * [taylor]: Taking taylor expansion of 0 in y
5.465 * [backup-simplify]: Simplify 0 into 0
5.465 * [backup-simplify]: Simplify 0 into 0
5.465 * [backup-simplify]: Simplify 0 into 0
5.466 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
5.466 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))
5.466 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
5.466 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
5.466 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
5.466 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.466 * [taylor]: Taking taylor expansion of x in y
5.466 * [backup-simplify]: Simplify x into x
5.466 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
5.466 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.466 * [taylor]: Taking taylor expansion of y in y
5.466 * [backup-simplify]: Simplify 0 into 0
5.466 * [backup-simplify]: Simplify 1 into 1
5.467 * [backup-simplify]: Simplify (/ 1 1) into 1
5.467 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
5.467 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.467 * [taylor]: Taking taylor expansion of y in y
5.467 * [backup-simplify]: Simplify 0 into 0
5.467 * [backup-simplify]: Simplify 1 into 1
5.467 * [backup-simplify]: Simplify (/ 1 1) into 1
5.467 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.467 * [taylor]: Taking taylor expansion of x in y
5.467 * [backup-simplify]: Simplify x into x
5.467 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
5.467 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
5.467 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
5.467 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.467 * [taylor]: Taking taylor expansion of x in x
5.467 * [backup-simplify]: Simplify 0 into 0
5.467 * [backup-simplify]: Simplify 1 into 1
5.468 * [backup-simplify]: Simplify (/ 1 1) into 1
5.468 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.468 * [taylor]: Taking taylor expansion of y in x
5.468 * [backup-simplify]: Simplify y into y
5.468 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.468 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.468 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.468 * [taylor]: Taking taylor expansion of y in x
5.468 * [backup-simplify]: Simplify y into y
5.468 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.468 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.468 * [taylor]: Taking taylor expansion of x in x
5.468 * [backup-simplify]: Simplify 0 into 0
5.468 * [backup-simplify]: Simplify 1 into 1
5.468 * [backup-simplify]: Simplify (/ 1 1) into 1
5.468 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
5.468 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
5.469 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.469 * [taylor]: Taking taylor expansion of x in x
5.469 * [backup-simplify]: Simplify 0 into 0
5.469 * [backup-simplify]: Simplify 1 into 1
5.469 * [backup-simplify]: Simplify (/ 1 1) into 1
5.469 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.469 * [taylor]: Taking taylor expansion of y in x
5.469 * [backup-simplify]: Simplify y into y
5.469 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.469 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.469 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.469 * [taylor]: Taking taylor expansion of y in x
5.469 * [backup-simplify]: Simplify y into y
5.469 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.469 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.469 * [taylor]: Taking taylor expansion of x in x
5.469 * [backup-simplify]: Simplify 0 into 0
5.469 * [backup-simplify]: Simplify 1 into 1
5.470 * [backup-simplify]: Simplify (/ 1 1) into 1
5.470 * [backup-simplify]: Simplify (+ 1 0) into 1
5.471 * [backup-simplify]: Simplify (+ 0 1) into 1
5.471 * [backup-simplify]: Simplify (* 1 1) into 1
5.471 * [taylor]: Taking taylor expansion of 1 in y
5.471 * [backup-simplify]: Simplify 1 into 1
5.472 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.472 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
5.472 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.473 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
5.473 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
5.473 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (- (/ 1 y)) 1)) into 0
5.473 * [taylor]: Taking taylor expansion of 0 in y
5.473 * [backup-simplify]: Simplify 0 into 0
5.473 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
5.474 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.474 * [backup-simplify]: Simplify (+ 0 0) into 0
5.475 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.475 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
5.476 * [backup-simplify]: Simplify (- 0) into 0
5.476 * [backup-simplify]: Simplify (+ 0 0) into 0
5.477 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) (/ 1 y)) (* 0 1))) into (- (/ 1 (pow y 2)))
5.477 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
5.477 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.477 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.477 * [taylor]: Taking taylor expansion of y in y
5.477 * [backup-simplify]: Simplify 0 into 0
5.477 * [backup-simplify]: Simplify 1 into 1
5.478 * [backup-simplify]: Simplify (* 1 1) into 1
5.478 * [backup-simplify]: Simplify (/ 1 1) into 1
5.478 * [backup-simplify]: Simplify (- 1) into -1
5.478 * [backup-simplify]: Simplify -1 into -1
5.478 * [backup-simplify]: Simplify 1 into 1
5.479 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.479 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.480 * [backup-simplify]: Simplify (+ 0 0) into 0
5.481 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.481 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.481 * [backup-simplify]: Simplify (- 0) into 0
5.482 * [backup-simplify]: Simplify (+ 0 0) into 0
5.483 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
5.483 * [taylor]: Taking taylor expansion of 0 in y
5.483 * [backup-simplify]: Simplify 0 into 0
5.483 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.484 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.484 * [backup-simplify]: Simplify (- 0) into 0
5.484 * [backup-simplify]: Simplify 0 into 0
5.485 * [backup-simplify]: Simplify 0 into 0
5.485 * [backup-simplify]: Simplify 0 into 0
5.485 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.486 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.486 * [backup-simplify]: Simplify (+ 0 0) into 0
5.487 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.487 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.488 * [backup-simplify]: Simplify (- 0) into 0
5.488 * [backup-simplify]: Simplify (+ 0 0) into 0
5.489 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
5.489 * [taylor]: Taking taylor expansion of 0 in y
5.489 * [backup-simplify]: Simplify 0 into 0
5.490 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.491 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.491 * [backup-simplify]: Simplify (- 0) into 0
5.491 * [backup-simplify]: Simplify 0 into 0
5.492 * [backup-simplify]: Simplify 0 into 0
5.492 * [backup-simplify]: Simplify 0 into 0
5.492 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
5.492 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))
5.492 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
5.492 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
5.493 * [taylor]: Taking taylor expansion of -1 in y
5.493 * [backup-simplify]: Simplify -1 into -1
5.493 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
5.493 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
5.493 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.493 * [taylor]: Taking taylor expansion of y in y
5.493 * [backup-simplify]: Simplify 0 into 0
5.493 * [backup-simplify]: Simplify 1 into 1
5.493 * [backup-simplify]: Simplify (/ 1 1) into 1
5.493 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.493 * [taylor]: Taking taylor expansion of x in y
5.493 * [backup-simplify]: Simplify x into x
5.493 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
5.493 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
5.493 * [taylor]: Taking taylor expansion of (/ 1 y) in y
5.493 * [taylor]: Taking taylor expansion of y in y
5.493 * [backup-simplify]: Simplify 0 into 0
5.493 * [backup-simplify]: Simplify 1 into 1
5.494 * [backup-simplify]: Simplify (/ 1 1) into 1
5.494 * [taylor]: Taking taylor expansion of (/ 1 x) in y
5.494 * [taylor]: Taking taylor expansion of x in y
5.494 * [backup-simplify]: Simplify x into x
5.494 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
5.494 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
5.494 * [taylor]: Taking taylor expansion of -1 in x
5.494 * [backup-simplify]: Simplify -1 into -1
5.494 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
5.494 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.494 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.494 * [taylor]: Taking taylor expansion of y in x
5.494 * [backup-simplify]: Simplify y into y
5.494 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.494 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.494 * [taylor]: Taking taylor expansion of x in x
5.494 * [backup-simplify]: Simplify 0 into 0
5.494 * [backup-simplify]: Simplify 1 into 1
5.495 * [backup-simplify]: Simplify (/ 1 1) into 1
5.495 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
5.495 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.495 * [taylor]: Taking taylor expansion of y in x
5.495 * [backup-simplify]: Simplify y into y
5.495 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.495 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.495 * [taylor]: Taking taylor expansion of x in x
5.495 * [backup-simplify]: Simplify 0 into 0
5.495 * [backup-simplify]: Simplify 1 into 1
5.495 * [backup-simplify]: Simplify (/ 1 1) into 1
5.495 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
5.495 * [taylor]: Taking taylor expansion of -1 in x
5.495 * [backup-simplify]: Simplify -1 into -1
5.495 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
5.495 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
5.495 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.495 * [taylor]: Taking taylor expansion of y in x
5.495 * [backup-simplify]: Simplify y into y
5.496 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.496 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.496 * [taylor]: Taking taylor expansion of x in x
5.496 * [backup-simplify]: Simplify 0 into 0
5.496 * [backup-simplify]: Simplify 1 into 1
5.496 * [backup-simplify]: Simplify (/ 1 1) into 1
5.496 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
5.496 * [taylor]: Taking taylor expansion of (/ 1 y) in x
5.496 * [taylor]: Taking taylor expansion of y in x
5.496 * [backup-simplify]: Simplify y into y
5.496 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
5.496 * [taylor]: Taking taylor expansion of (/ 1 x) in x
5.496 * [taylor]: Taking taylor expansion of x in x
5.496 * [backup-simplify]: Simplify 0 into 0
5.496 * [backup-simplify]: Simplify 1 into 1
5.497 * [backup-simplify]: Simplify (/ 1 1) into 1
5.497 * [backup-simplify]: Simplify (+ 0 1) into 1
5.497 * [backup-simplify]: Simplify (- 1) into -1
5.498 * [backup-simplify]: Simplify (+ 0 -1) into -1
5.498 * [backup-simplify]: Simplify (* 1 -1) into -1
5.499 * [backup-simplify]: Simplify (* -1 -1) into 1
5.499 * [taylor]: Taking taylor expansion of 1 in y
5.499 * [backup-simplify]: Simplify 1 into 1
5.499 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.500 * [backup-simplify]: Simplify (- 0) into 0
5.500 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
5.501 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.501 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
5.501 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (/ 1 y) -1)) into 0
5.501 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
5.501 * [taylor]: Taking taylor expansion of 0 in y
5.502 * [backup-simplify]: Simplify 0 into 0
5.502 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
5.503 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.503 * [backup-simplify]: Simplify (- 0) into 0
5.503 * [backup-simplify]: Simplify (+ 0 0) into 0
5.503 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
5.510 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.511 * [backup-simplify]: Simplify (+ 0 0) into 0
5.512 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 -1))) into (/ 1 (pow y 2))
5.513 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
5.513 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
5.513 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
5.513 * [taylor]: Taking taylor expansion of (pow y 2) in y
5.513 * [taylor]: Taking taylor expansion of y in y
5.513 * [backup-simplify]: Simplify 0 into 0
5.513 * [backup-simplify]: Simplify 1 into 1
5.513 * [backup-simplify]: Simplify (* 1 1) into 1
5.514 * [backup-simplify]: Simplify (/ 1 1) into 1
5.514 * [backup-simplify]: Simplify (- 1) into -1
5.514 * [backup-simplify]: Simplify -1 into -1
5.514 * [backup-simplify]: Simplify 1 into 1
5.514 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.515 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.516 * [backup-simplify]: Simplify (- 0) into 0
5.516 * [backup-simplify]: Simplify (+ 0 0) into 0
5.516 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.517 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.517 * [backup-simplify]: Simplify (+ 0 0) into 0
5.518 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 -1)))) into 0
5.520 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
5.520 * [taylor]: Taking taylor expansion of 0 in y
5.520 * [backup-simplify]: Simplify 0 into 0
5.520 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
5.521 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
5.521 * [backup-simplify]: Simplify (- 0) into 0
5.521 * [backup-simplify]: Simplify 0 into 0
5.521 * [backup-simplify]: Simplify 0 into 0
5.521 * [backup-simplify]: Simplify 0 into 0
5.522 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.523 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.523 * [backup-simplify]: Simplify (- 0) into 0
5.523 * [backup-simplify]: Simplify (+ 0 0) into 0
5.523 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
5.524 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.525 * [backup-simplify]: Simplify (+ 0 0) into 0
5.526 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1))))) into 0
5.528 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
5.528 * [taylor]: Taking taylor expansion of 0 in y
5.528 * [backup-simplify]: Simplify 0 into 0
5.529 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
5.530 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
5.530 * [backup-simplify]: Simplify (- 0) into 0
5.530 * [backup-simplify]: Simplify 0 into 0
5.530 * [backup-simplify]: Simplify 0 into 0
5.530 * [backup-simplify]: Simplify 0 into 0
5.531 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
5.531 * * * [progress]: simplifying candidates
5.532 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
  (+ (log (+ x y)) (log (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (* (* (* (+ x y) (+ x y)) (+ x y)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (* (* (* (+ x y) (- x y)) (* (+ x y) (- x y))) (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (- x y) (+ (* x x) (+ (* y y) (* x y))))
  (* (- (* x x) (* y y)) (- (* x x) (* y y)))
  (* (- x y) (+ x y))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (* (+ x y) 1)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (* (+ x y) 1)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (- x y))
  (* (- (* x x) (* y y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
5.533 * * [simplify]: Extracting # 0 : cost  0
5.533 * * [simplify]: Extracting # 1 : cost  0
5.534 * * [simplify]: Extracting # 2 : cost  0
5.534 * * [simplify]: Extracting # 3 : cost  0
5.534 * * [simplify]: Extracting # 4 : cost  0
5.534 * * [simplify]: Extracting # 5 : cost  0
5.534 * * [simplify]: Extracting # 6 : cost  0
5.534 * * [simplify]: iteration  0 :  70  enodes  (cost  436 )
5.563 * * [simplify]: Extracting # 0 : cost  0
5.564 * * [simplify]: Extracting # 1 : cost  0
5.564 * * [simplify]: Extracting # 2 : cost  0
5.565 * * [simplify]: Extracting # 3 : cost  0
5.565 * * [simplify]: Extracting # 4 : cost  0
5.565 * * [simplify]: iteration  1 :  192  enodes  (cost  423 )
5.699 * * [simplify]: Extracting # 0 : cost  0
5.700 * * [simplify]: Extracting # 1 : cost  0
5.701 * * [simplify]: Extracting # 2 : cost  0
5.703 * * [simplify]: Extracting # 3 : cost  0
5.705 * * [simplify]: Extracting # 4 : cost  0
5.707 * * [simplify]: iteration  2 :  840  enodes  (cost  395 )
6.884 * * [simplify]: Extracting # 0 : cost  0
6.893 * * [simplify]: Extracting # 1 : cost  0
6.901 * * [simplify]: Extracting # 2 : cost  0
6.904 * * [simplify]: Extracting # 3 : cost  0
6.908 * * [simplify]: Extracting # 4 : cost  0
6.911 * * [simplify]: iteration  3 :  3985  enodes  (cost  395 )
8.576 * * [simplify]: Extracting # 0 : cost  0
8.587 * * [simplify]: Extracting # 1 : cost  0
8.596 * * [simplify]: Extracting # 2 : cost  0
8.605 * * [simplify]: Extracting # 3 : cost  0
8.609 * * [simplify]: Extracting # 4 : cost  0
8.620 * * [simplify]: iteration done:  5001  enodes  (cost  395 )
8.620 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
  (log (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (- y x)) (* x x)) (+ (* y (+ x y)) (* x x)))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* y (- y x)) (* x x)) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (+ x y)) (* x x)) (- x y))
  (* (- x y) (* (+ x y) (- (* x x) (* y y))))
  (- (pow x 2) (pow y 2))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (+ x y)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (+ x y)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (- x y) (+ (pow x 3) (pow y 3)))
  (* (- (pow x 2) (pow y 2)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
8.620 * * * [progress]: adding candidates to table
8.737 * * [progress]: iteration 2 / 4
8.738 * * * [progress]: picking best candidate
8.742 * * * * [pick]: Picked  #<alt (λ (x y) (pow (- (pow x 2) (pow y 2)) 1))>
8.742 * * * [progress]: localizing error
8.761 * * * [progress]: generating rewritten candidates
8.761 * * * [progress]: generating series expansions
8.761 * * * [progress]: simplifying candidates
8.761 * [simplify]: Simplifying:
  
8.761 * * [simplify]: Extracting # 0 : cost  0
8.761 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
8.761 * * [simplify]: Extracting # 0 : cost  0
8.761 * * [simplify]: iteration done:  0  enodes  (cost  0 )
8.761 * [simplify]: Simplified to:
  
8.761 * * * [progress]: adding candidates to table
8.762 * [progress]: [Phase 3 of 3] Extracting.
8.766 * [simplify]: Simplifying:
  (pow (- (pow x 2) (pow y 2)) 1)
8.767 * * [simplify]: Extracting # 0 : cost  0
8.767 * * [simplify]: Extracting # 1 : cost  0
8.767 * * [simplify]: Extracting # 2 : cost  0
8.767 * * [simplify]: Extracting # 3 : cost  0
8.767 * * [simplify]: Extracting # 4 : cost  0
8.767 * * [simplify]: Extracting # 5 : cost  0
8.767 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
8.768 * * [simplify]: Extracting # 0 : cost  0
8.768 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
8.768 * * [simplify]: Extracting # 0 : cost  0
8.768 * * [simplify]: iteration done:  10  enodes  (cost  7 )
8.769 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
9.968 * [regime-testing]: Baseline error score: 0.007029481021439666
9.970 * [regime-testing]: Oracle error score: 0.007029481021439666
9.970 * [regime-testing]: End program error score: 0.007029481021439666