11.847 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.077 * * * [progress]: [2/2] Setting up program.
0.082 * [progress]: [Phase 2 of 3] Improving.
0.082 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.082 * * [simplify]: Extracting # 0 : cost  0
0.082 * * [simplify]: Extracting # 1 : cost  0
0.082 * * [simplify]: Extracting # 2 : cost  0
0.082 * * [simplify]: Extracting # 3 : cost  0
0.082 * * [simplify]: Extracting # 4 : cost  0
0.082 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.085 * * [simplify]: Extracting # 0 : cost  0
0.085 * * [simplify]: Extracting # 1 : cost  0
0.085 * * [simplify]: Extracting # 2 : cost  0
0.085 * * [simplify]: Extracting # 3 : cost  0
0.085 * * [simplify]: Extracting # 4 : cost  0
0.085 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.091 * * [simplify]: Extracting # 0 : cost  0
0.091 * * [simplify]: Extracting # 1 : cost  0
0.091 * * [simplify]: Extracting # 2 : cost  0
0.091 * * [simplify]: Extracting # 3 : cost  0
0.091 * * [simplify]: Extracting # 4 : cost  0
0.091 * * [simplify]: iteration  2 :  30  enodes  (cost  7 )
0.104 * * [simplify]: Extracting # 0 : cost  0
0.104 * * [simplify]: Extracting # 1 : cost  0
0.104 * * [simplify]: Extracting # 2 : cost  0
0.104 * * [simplify]: Extracting # 3 : cost  0
0.105 * * [simplify]: Extracting # 4 : cost  0
0.105 * * [simplify]: iteration  3 :  74  enodes  (cost  7 )
0.144 * * [simplify]: Extracting # 0 : cost  0
0.144 * * [simplify]: Extracting # 1 : cost  0
0.145 * * [simplify]: Extracting # 2 : cost  0
0.145 * * [simplify]: Extracting # 3 : cost  0
0.146 * * [simplify]: Extracting # 4 : cost  0
0.146 * * [simplify]: iteration  4 :  218  enodes  (cost  7 )
0.284 * * [simplify]: Extracting # 0 : cost  0
0.286 * * [simplify]: Extracting # 1 : cost  0
0.288 * * [simplify]: Extracting # 2 : cost  0
0.291 * * [simplify]: Extracting # 3 : cost  0
0.293 * * [simplify]: Extracting # 4 : cost  0
0.295 * * [simplify]: Extracting # 5 : cost  0
0.298 * * [simplify]: iteration  5 :  1141  enodes  (cost  7 )
1.341 * * [simplify]: Extracting # 0 : cost  0
1.358 * * [simplify]: Extracting # 1 : cost  0
1.370 * * [simplify]: Extracting # 2 : cost  0
1.381 * * [simplify]: Extracting # 3 : cost  0
1.396 * * [simplify]: Extracting # 4 : cost  0
1.402 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
1.402 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
1.403 * * [progress]: iteration 1 / 4
1.403 * * * [progress]: picking best candidate
1.405 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
1.405 * * * [progress]: localizing error
1.413 * * * [progress]: generating rewritten candidates
1.413 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
1.441 * * * [progress]: generating series expansions
1.441 * * * * [progress]: [ 1 / 1 ] generating series at (2)
1.441 * [backup-simplify]: Simplify (- (pow x 4.0) (pow y 4.0)) into (- (pow x 4) (pow y 4))
1.441 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0
1.441 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y
1.441 * [taylor]: Taking taylor expansion of (pow x 4) in y
1.442 * [taylor]: Taking taylor expansion of x in y
1.442 * [backup-simplify]: Simplify x into x
1.442 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.442 * [taylor]: Taking taylor expansion of y in y
1.442 * [backup-simplify]: Simplify 0 into 0
1.442 * [backup-simplify]: Simplify 1 into 1
1.442 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
1.442 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.442 * [taylor]: Taking taylor expansion of x in x
1.442 * [backup-simplify]: Simplify 0 into 0
1.442 * [backup-simplify]: Simplify 1 into 1
1.442 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.442 * [taylor]: Taking taylor expansion of y in x
1.442 * [backup-simplify]: Simplify y into y
1.442 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
1.442 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.442 * [taylor]: Taking taylor expansion of x in x
1.442 * [backup-simplify]: Simplify 0 into 0
1.442 * [backup-simplify]: Simplify 1 into 1
1.442 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.442 * [taylor]: Taking taylor expansion of y in x
1.442 * [backup-simplify]: Simplify y into y
1.443 * [backup-simplify]: Simplify (* y y) into (pow y 2)
1.443 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
1.443 * [backup-simplify]: Simplify (- (pow y 4)) into (- (pow y 4))
1.443 * [backup-simplify]: Simplify (+ 0 (- (pow y 4))) into (- (pow y 4))
1.443 * [taylor]: Taking taylor expansion of (- (pow y 4)) in y
1.443 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.443 * [taylor]: Taking taylor expansion of y in y
1.443 * [backup-simplify]: Simplify 0 into 0
1.443 * [backup-simplify]: Simplify 1 into 1
1.443 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
1.444 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
1.444 * [backup-simplify]: Simplify (- 0) into 0
1.444 * [backup-simplify]: Simplify (+ 0 0) into 0
1.444 * [taylor]: Taking taylor expansion of 0 in y
1.444 * [backup-simplify]: Simplify 0 into 0
1.444 * [backup-simplify]: Simplify 0 into 0
1.445 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
1.445 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
1.445 * [backup-simplify]: Simplify (- 0) into 0
1.445 * [backup-simplify]: Simplify (+ 0 0) into 0
1.445 * [taylor]: Taking taylor expansion of 0 in y
1.445 * [backup-simplify]: Simplify 0 into 0
1.446 * [backup-simplify]: Simplify 0 into 0
1.446 * [backup-simplify]: Simplify 0 into 0
1.446 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
1.447 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow y 2))))) into 0
1.447 * [backup-simplify]: Simplify (- 0) into 0
1.447 * [backup-simplify]: Simplify (+ 0 0) into 0
1.447 * [taylor]: Taking taylor expansion of 0 in y
1.447 * [backup-simplify]: Simplify 0 into 0
1.447 * [backup-simplify]: Simplify 0 into 0
1.447 * [backup-simplify]: Simplify 0 into 0
1.447 * [backup-simplify]: Simplify 0 into 0
1.447 * [backup-simplify]: Simplify 0 into 0
1.448 * [backup-simplify]: Simplify (- (pow (/ 1 x) 4.0) (pow (/ 1 y) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
1.448 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
1.448 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
1.448 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
1.448 * [taylor]: Taking taylor expansion of (pow x 4) in y
1.448 * [taylor]: Taking taylor expansion of x in y
1.448 * [backup-simplify]: Simplify x into x
1.448 * [backup-simplify]: Simplify (* x x) into (pow x 2)
1.448 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
1.448 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
1.448 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.448 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.448 * [taylor]: Taking taylor expansion of y in y
1.448 * [backup-simplify]: Simplify 0 into 0
1.448 * [backup-simplify]: Simplify 1 into 1
1.448 * [backup-simplify]: Simplify (* 1 1) into 1
1.449 * [backup-simplify]: Simplify (* 1 1) into 1
1.449 * [backup-simplify]: Simplify (/ 1 1) into 1
1.449 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.449 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.449 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.449 * [taylor]: Taking taylor expansion of x in x
1.449 * [backup-simplify]: Simplify 0 into 0
1.449 * [backup-simplify]: Simplify 1 into 1
1.449 * [backup-simplify]: Simplify (* 1 1) into 1
1.449 * [backup-simplify]: Simplify (* 1 1) into 1
1.450 * [backup-simplify]: Simplify (/ 1 1) into 1
1.450 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.450 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.450 * [taylor]: Taking taylor expansion of y in x
1.450 * [backup-simplify]: Simplify y into y
1.450 * [backup-simplify]: Simplify (* y y) into (pow y 2)
1.450 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
1.450 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
1.450 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.450 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.450 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.450 * [taylor]: Taking taylor expansion of x in x
1.450 * [backup-simplify]: Simplify 0 into 0
1.450 * [backup-simplify]: Simplify 1 into 1
1.450 * [backup-simplify]: Simplify (* 1 1) into 1
1.451 * [backup-simplify]: Simplify (* 1 1) into 1
1.451 * [backup-simplify]: Simplify (/ 1 1) into 1
1.451 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.451 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.451 * [taylor]: Taking taylor expansion of y in x
1.451 * [backup-simplify]: Simplify y into y
1.451 * [backup-simplify]: Simplify (* y y) into (pow y 2)
1.451 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
1.451 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
1.452 * [backup-simplify]: Simplify (+ 1 0) into 1
1.452 * [taylor]: Taking taylor expansion of 1 in y
1.452 * [backup-simplify]: Simplify 1 into 1
1.452 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.452 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.453 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.453 * [backup-simplify]: Simplify (+ 0 0) into 0
1.453 * [taylor]: Taking taylor expansion of 0 in y
1.453 * [backup-simplify]: Simplify 0 into 0
1.454 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.454 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.455 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.455 * [backup-simplify]: Simplify (+ 0 0) into 0
1.455 * [taylor]: Taking taylor expansion of 0 in y
1.455 * [backup-simplify]: Simplify 0 into 0
1.456 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
1.457 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
1.458 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.458 * [backup-simplify]: Simplify (+ 0 0) into 0
1.458 * [taylor]: Taking taylor expansion of 0 in y
1.458 * [backup-simplify]: Simplify 0 into 0
1.459 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
1.461 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
1.462 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.462 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
1.462 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
1.462 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
1.462 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.462 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.462 * [taylor]: Taking taylor expansion of y in y
1.462 * [backup-simplify]: Simplify 0 into 0
1.462 * [backup-simplify]: Simplify 1 into 1
1.463 * [backup-simplify]: Simplify (* 1 1) into 1
1.463 * [backup-simplify]: Simplify (* 1 1) into 1
1.464 * [backup-simplify]: Simplify (/ 1 1) into 1
1.464 * [backup-simplify]: Simplify (- 1) into -1
1.464 * [backup-simplify]: Simplify -1 into -1
1.464 * [backup-simplify]: Simplify 1 into 1
1.465 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
1.467 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
1.468 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.468 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
1.468 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
1.469 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
1.469 * [backup-simplify]: Simplify (- 0) into 0
1.469 * [backup-simplify]: Simplify (+ 0 0) into 0
1.469 * [taylor]: Taking taylor expansion of 0 in y
1.469 * [backup-simplify]: Simplify 0 into 0
1.470 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.471 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.471 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.472 * [backup-simplify]: Simplify (- 0) into 0
1.472 * [backup-simplify]: Simplify 0 into 0
1.472 * [backup-simplify]: Simplify 0 into 0
1.472 * [backup-simplify]: Simplify 0 into 0
1.474 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
1.475 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
1.476 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.477 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
1.478 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
1.478 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
1.478 * [backup-simplify]: Simplify (- 0) into 0
1.479 * [backup-simplify]: Simplify (+ 0 0) into 0
1.479 * [taylor]: Taking taylor expansion of 0 in y
1.479 * [backup-simplify]: Simplify 0 into 0
1.480 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.487 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.489 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.489 * [backup-simplify]: Simplify (- 0) into 0
1.489 * [backup-simplify]: Simplify 0 into 0
1.489 * [backup-simplify]: Simplify 0 into 0
1.489 * [backup-simplify]: Simplify 0 into 0
1.490 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 4)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 4))) into (- (pow x 4) (pow y 4))
1.490 * [backup-simplify]: Simplify (- (pow (/ 1 (- x)) 4.0) (pow (/ 1 (- y)) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
1.490 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
1.490 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
1.490 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
1.490 * [taylor]: Taking taylor expansion of (pow x 4) in y
1.490 * [taylor]: Taking taylor expansion of x in y
1.490 * [backup-simplify]: Simplify x into x
1.491 * [backup-simplify]: Simplify (* x x) into (pow x 2)
1.491 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
1.491 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
1.491 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.491 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.491 * [taylor]: Taking taylor expansion of y in y
1.491 * [backup-simplify]: Simplify 0 into 0
1.491 * [backup-simplify]: Simplify 1 into 1
1.492 * [backup-simplify]: Simplify (* 1 1) into 1
1.492 * [backup-simplify]: Simplify (* 1 1) into 1
1.492 * [backup-simplify]: Simplify (/ 1 1) into 1
1.492 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.492 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.492 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.492 * [taylor]: Taking taylor expansion of x in x
1.492 * [backup-simplify]: Simplify 0 into 0
1.492 * [backup-simplify]: Simplify 1 into 1
1.493 * [backup-simplify]: Simplify (* 1 1) into 1
1.493 * [backup-simplify]: Simplify (* 1 1) into 1
1.494 * [backup-simplify]: Simplify (/ 1 1) into 1
1.494 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.494 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.494 * [taylor]: Taking taylor expansion of y in x
1.494 * [backup-simplify]: Simplify y into y
1.494 * [backup-simplify]: Simplify (* y y) into (pow y 2)
1.494 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
1.494 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
1.494 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
1.495 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
1.495 * [taylor]: Taking taylor expansion of (pow x 4) in x
1.495 * [taylor]: Taking taylor expansion of x in x
1.495 * [backup-simplify]: Simplify 0 into 0
1.495 * [backup-simplify]: Simplify 1 into 1
1.495 * [backup-simplify]: Simplify (* 1 1) into 1
1.495 * [backup-simplify]: Simplify (* 1 1) into 1
1.496 * [backup-simplify]: Simplify (/ 1 1) into 1
1.496 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
1.496 * [taylor]: Taking taylor expansion of (pow y 4) in x
1.496 * [taylor]: Taking taylor expansion of y in x
1.496 * [backup-simplify]: Simplify y into y
1.496 * [backup-simplify]: Simplify (* y y) into (pow y 2)
1.496 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
1.496 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
1.497 * [backup-simplify]: Simplify (+ 1 0) into 1
1.497 * [taylor]: Taking taylor expansion of 1 in y
1.497 * [backup-simplify]: Simplify 1 into 1
1.498 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.498 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.499 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.499 * [backup-simplify]: Simplify (+ 0 0) into 0
1.499 * [taylor]: Taking taylor expansion of 0 in y
1.499 * [backup-simplify]: Simplify 0 into 0
1.500 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.501 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.502 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.503 * [backup-simplify]: Simplify (+ 0 0) into 0
1.503 * [taylor]: Taking taylor expansion of 0 in y
1.503 * [backup-simplify]: Simplify 0 into 0
1.504 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
1.505 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
1.506 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.506 * [backup-simplify]: Simplify (+ 0 0) into 0
1.506 * [taylor]: Taking taylor expansion of 0 in y
1.507 * [backup-simplify]: Simplify 0 into 0
1.508 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
1.509 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
1.510 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.510 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
1.511 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
1.511 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
1.511 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
1.511 * [taylor]: Taking taylor expansion of (pow y 4) in y
1.511 * [taylor]: Taking taylor expansion of y in y
1.511 * [backup-simplify]: Simplify 0 into 0
1.511 * [backup-simplify]: Simplify 1 into 1
1.511 * [backup-simplify]: Simplify (* 1 1) into 1
1.512 * [backup-simplify]: Simplify (* 1 1) into 1
1.512 * [backup-simplify]: Simplify (/ 1 1) into 1
1.512 * [backup-simplify]: Simplify (- 1) into -1
1.512 * [backup-simplify]: Simplify -1 into -1
1.513 * [backup-simplify]: Simplify 1 into 1
1.514 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
1.515 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
1.516 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.516 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
1.517 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
1.517 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
1.518 * [backup-simplify]: Simplify (- 0) into 0
1.518 * [backup-simplify]: Simplify (+ 0 0) into 0
1.518 * [taylor]: Taking taylor expansion of 0 in y
1.518 * [backup-simplify]: Simplify 0 into 0
1.519 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.519 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
1.520 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
1.521 * [backup-simplify]: Simplify (- 0) into 0
1.521 * [backup-simplify]: Simplify 0 into 0
1.521 * [backup-simplify]: Simplify 0 into 0
1.521 * [backup-simplify]: Simplify 0 into 0
1.522 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
1.524 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
1.525 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.526 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
1.527 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
1.527 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
1.528 * [backup-simplify]: Simplify (- 0) into 0
1.528 * [backup-simplify]: Simplify (+ 0 0) into 0
1.528 * [taylor]: Taking taylor expansion of 0 in y
1.528 * [backup-simplify]: Simplify 0 into 0
1.529 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.530 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
1.531 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
1.532 * [backup-simplify]: Simplify (- 0) into 0
1.532 * [backup-simplify]: Simplify 0 into 0
1.532 * [backup-simplify]: Simplify 0 into 0
1.532 * [backup-simplify]: Simplify 0 into 0
1.533 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 4)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 4))) into (- (pow x 4) (pow y 4))
1.533 * * * [progress]: simplifying candidates
1.537 * [simplify]: Simplifying:
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma 1 (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma 1 (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma 1 (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma 1 (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (/ (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))))
  (- (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))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
1.543 * * [simplify]: Extracting # 0 : cost  0
1.543 * * [simplify]: Extracting # 1 : cost  0
1.544 * * [simplify]: Extracting # 2 : cost  0
1.544 * * [simplify]: Extracting # 3 : cost  0
1.545 * * [simplify]: Extracting # 4 : cost  0
1.545 * * [simplify]: Extracting # 5 : cost  0
1.545 * * [simplify]: Extracting # 6 : cost  0
1.546 * * [simplify]: Extracting # 7 : cost  0
1.546 * * [simplify]: Extracting # 8 : cost  0
1.547 * * [simplify]: iteration  0 :  152  enodes  (cost  2374 )
1.606 * * [simplify]: Extracting # 0 : cost  0
1.606 * * [simplify]: Extracting # 1 : cost  0
1.607 * * [simplify]: Extracting # 2 : cost  0
1.607 * * [simplify]: Extracting # 3 : cost  0
1.608 * * [simplify]: Extracting # 4 : cost  0
1.608 * * [simplify]: iteration  1 :  328  enodes  (cost  1705 )
1.728 * * [simplify]: Extracting # 0 : cost  0
1.729 * * [simplify]: Extracting # 1 : cost  0
1.730 * * [simplify]: Extracting # 2 : cost  0
1.731 * * [simplify]: Extracting # 3 : cost  0
1.731 * * [simplify]: Extracting # 4 : cost  0
1.732 * * [simplify]: iteration  2 :  1002  enodes  (cost  1361 )
2.600 * * [simplify]: Extracting # 0 : cost  0
2.611 * * [simplify]: Extracting # 1 : cost  0
2.621 * * [simplify]: Extracting # 2 : cost  0
2.632 * * [simplify]: Extracting # 3 : cost  0
2.641 * * [simplify]: Extracting # 4 : cost  0
2.650 * * [simplify]: iteration done:  5001  enodes  (cost  1165 )
2.650 * [simplify]: Simplified to:
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow (sqrt y) (* 2 4.0))))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (- (pow (sqrt x) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (pow (cbrt (pow x 4.0)) 3))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (- (pow (cbrt (pow x 4.0)) 3) (pow (sqrt y) (* 2 4.0)))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow (cbrt (pow x 4.0)) 3) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (* (pow (* (cbrt y) (cbrt y)) 4.0) (+ (- (pow (cbrt y) 4.0)) (pow (cbrt y) 4.0)))
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  (+ (- (pow (sqrt y) (* 2 4.0))) (pow (sqrt y) (* 2 4.0)))
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (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))
  (fma (pow y 4.0) (+ (pow y 4.0) (pow x 4.0)) (pow x (* 2 4.0)))
  (- (pow y 4.0))
  (- (pow x (* 2 4.0)) (pow y (* 2 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))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
2.651 * * * [progress]: adding candidates to table
2.867 * [progress]: [Phase 3 of 3] Extracting.
2.869 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.869 * * [simplify]: Extracting # 0 : cost  0
2.869 * * [simplify]: Extracting # 1 : cost  0
2.869 * * [simplify]: Extracting # 2 : cost  0
2.869 * * [simplify]: Extracting # 3 : cost  0
2.869 * * [simplify]: Extracting # 4 : cost  0
2.869 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
2.869 * * [simplify]: Extracting # 0 : cost  0
2.869 * * [simplify]: iteration done:  6  enodes  (cost  7 )
2.869 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
5.241 * [regime-testing]: Baseline error score: 0.002250281285160645
5.243 * [regime-testing]: Oracle error score: 0.002250281285160645
5.243 * [regime-testing]: End program error score: 0.002250281285160645