37.039 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.028 * * * [progress]: [2/2] Setting up program.
0.030 * [progress]: [Phase 2 of 3] Improving.
0.031 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.031 * * [simplify]: Extracting # 3 : cost  0
0.031 * * [simplify]: Extracting # 4 : cost  0
0.031 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.032 * * [simplify]: Extracting # 0 : cost  0
0.032 * * [simplify]: Extracting # 1 : cost  0
0.032 * * [simplify]: Extracting # 2 : cost  0
0.032 * * [simplify]: iteration  1 :  11  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  2 :  18  enodes  (cost  7 )
0.038 * * [simplify]: Extracting # 0 : cost  0
0.038 * * [simplify]: Extracting # 1 : cost  0
0.038 * * [simplify]: Extracting # 2 : cost  0
0.039 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.052 * * [simplify]: Extracting # 0 : cost  0
0.052 * * [simplify]: Extracting # 1 : cost  0
0.052 * * [simplify]: Extracting # 2 : cost  0
0.053 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.086 * * [simplify]: Extracting # 0 : cost  0
0.086 * * [simplify]: Extracting # 1 : cost  0
0.087 * * [simplify]: Extracting # 2 : cost  0
0.087 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.175 * * [simplify]: Extracting # 0 : cost  0
0.176 * * [simplify]: Extracting # 1 : cost  0
0.176 * * [simplify]: Extracting # 2 : cost  0
0.177 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.351 * * [simplify]: Extracting # 0 : cost  0
0.351 * * [simplify]: Extracting # 1 : cost  0
0.355 * * [simplify]: Extracting # 2 : cost  0
0.356 * * [simplify]: Extracting # 3 : cost  0
0.356 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.480 * * [simplify]: Extracting # 0 : cost  0
1.482 * * [simplify]: Extracting # 1 : cost  0
1.483 * * [simplify]: Extracting # 2 : cost  0
1.485 * * [simplify]: Extracting # 3 : cost  0
1.487 * * [simplify]: Extracting # 4 : cost  0
1.488 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
12.366 * * [simplify]: Extracting # 0 : cost  0
12.379 * * [simplify]: Extracting # 1 : cost  0
12.385 * * [simplify]: Extracting # 2 : cost  0
12.391 * * [simplify]: Extracting # 3 : cost  0
12.398 * * [simplify]: Extracting # 4 : cost  0
12.405 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
12.405 * [simplify]: Simplified to:
  (- (* x x) (* y y))
12.405 * * [progress]: iteration 1 / 4
12.405 * * * [progress]: picking best candidate
12.408 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
12.408 * * * [progress]: localizing error
12.416 * * * [progress]: generating rewritten candidates
12.416 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
12.425 * * * [progress]: generating series expansions
12.425 * * * * [progress]: [ 1 / 1 ] generating series at (2)
12.425 * [backup-simplify]: Simplify (- (* x x) (* y y)) into (- (pow x 2) (pow y 2))
12.425 * [approximate]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in (x y) around 0
12.425 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in y
12.425 * [taylor]: Taking taylor expansion of (pow x 2) in y
12.425 * [taylor]: Taking taylor expansion of x in y
12.425 * [backup-simplify]: Simplify x into x
12.425 * [taylor]: Taking taylor expansion of (pow y 2) in y
12.426 * [taylor]: Taking taylor expansion of y in y
12.426 * [backup-simplify]: Simplify 0 into 0
12.426 * [backup-simplify]: Simplify 1 into 1
12.426 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
12.426 * [taylor]: Taking taylor expansion of (pow x 2) in x
12.426 * [taylor]: Taking taylor expansion of x in x
12.426 * [backup-simplify]: Simplify 0 into 0
12.426 * [backup-simplify]: Simplify 1 into 1
12.426 * [taylor]: Taking taylor expansion of (pow y 2) in x
12.426 * [taylor]: Taking taylor expansion of y in x
12.426 * [backup-simplify]: Simplify y into y
12.426 * [taylor]: Taking taylor expansion of (- (pow x 2) (pow y 2)) in x
12.426 * [taylor]: Taking taylor expansion of (pow x 2) in x
12.426 * [taylor]: Taking taylor expansion of x in x
12.426 * [backup-simplify]: Simplify 0 into 0
12.426 * [backup-simplify]: Simplify 1 into 1
12.426 * [taylor]: Taking taylor expansion of (pow y 2) in x
12.426 * [taylor]: Taking taylor expansion of y in x
12.426 * [backup-simplify]: Simplify y into y
12.426 * [backup-simplify]: Simplify (* y y) into (pow y 2)
12.426 * [backup-simplify]: Simplify (- (pow y 2)) into (- (pow y 2))
12.426 * [backup-simplify]: Simplify (+ 0 (- (pow y 2))) into (- (pow y 2))
12.426 * [taylor]: Taking taylor expansion of (- (pow y 2)) in y
12.426 * [taylor]: Taking taylor expansion of (pow y 2) in y
12.426 * [taylor]: Taking taylor expansion of y in y
12.426 * [backup-simplify]: Simplify 0 into 0
12.426 * [backup-simplify]: Simplify 1 into 1
12.426 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
12.427 * [backup-simplify]: Simplify (- 0) into 0
12.427 * [backup-simplify]: Simplify (+ 0 0) into 0
12.427 * [taylor]: Taking taylor expansion of 0 in y
12.427 * [backup-simplify]: Simplify 0 into 0
12.427 * [backup-simplify]: Simplify 0 into 0
12.427 * [backup-simplify]: Simplify (* 1 1) into 1
12.428 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
12.428 * [backup-simplify]: Simplify (- 0) into 0
12.428 * [backup-simplify]: Simplify (+ 1 0) into 1
12.428 * [taylor]: Taking taylor expansion of 1 in y
12.428 * [backup-simplify]: Simplify 1 into 1
12.428 * [backup-simplify]: Simplify 1 into 1
12.428 * [backup-simplify]: Simplify 0 into 0
12.429 * [backup-simplify]: Simplify (* 1 1) into 1
12.429 * [backup-simplify]: Simplify (- 1) into -1
12.429 * [backup-simplify]: Simplify -1 into -1
12.429 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
12.430 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
12.430 * [backup-simplify]: Simplify (- 0) into 0
12.430 * [backup-simplify]: Simplify (+ 0 0) into 0
12.430 * [taylor]: Taking taylor expansion of 0 in y
12.430 * [backup-simplify]: Simplify 0 into 0
12.430 * [backup-simplify]: Simplify 0 into 0
12.430 * [backup-simplify]: Simplify 0 into 0
12.430 * [backup-simplify]: Simplify 0 into 0
12.431 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
12.431 * [backup-simplify]: Simplify (- 0) into 0
12.431 * [backup-simplify]: Simplify 0 into 0
12.432 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
12.432 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
12.432 * [backup-simplify]: Simplify (- 0) into 0
12.433 * [backup-simplify]: Simplify (+ 0 0) into 0
12.433 * [taylor]: Taking taylor expansion of 0 in y
12.433 * [backup-simplify]: Simplify 0 into 0
12.433 * [backup-simplify]: Simplify 0 into 0
12.433 * [backup-simplify]: Simplify 0 into 0
12.433 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
12.433 * [backup-simplify]: Simplify (- (* (/ 1 x) (/ 1 x)) (* (/ 1 y) (/ 1 y))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
12.433 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
12.433 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
12.433 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
12.433 * [taylor]: Taking taylor expansion of (pow x 2) in y
12.433 * [taylor]: Taking taylor expansion of x in y
12.433 * [backup-simplify]: Simplify x into x
12.433 * [backup-simplify]: Simplify (* x x) into (pow x 2)
12.433 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
12.434 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
12.434 * [taylor]: Taking taylor expansion of (pow y 2) in y
12.434 * [taylor]: Taking taylor expansion of y in y
12.434 * [backup-simplify]: Simplify 0 into 0
12.434 * [backup-simplify]: Simplify 1 into 1
12.434 * [backup-simplify]: Simplify (* 1 1) into 1
12.434 * [backup-simplify]: Simplify (/ 1 1) into 1
12.434 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
12.434 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
12.434 * [taylor]: Taking taylor expansion of (pow x 2) in x
12.434 * [taylor]: Taking taylor expansion of x in x
12.434 * [backup-simplify]: Simplify 0 into 0
12.434 * [backup-simplify]: Simplify 1 into 1
12.434 * [backup-simplify]: Simplify (* 1 1) into 1
12.435 * [backup-simplify]: Simplify (/ 1 1) into 1
12.435 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
12.435 * [taylor]: Taking taylor expansion of (pow y 2) in x
12.435 * [taylor]: Taking taylor expansion of y in x
12.435 * [backup-simplify]: Simplify y into y
12.435 * [backup-simplify]: Simplify (* y y) into (pow y 2)
12.435 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
12.435 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
12.435 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
12.435 * [taylor]: Taking taylor expansion of (pow x 2) in x
12.435 * [taylor]: Taking taylor expansion of x in x
12.435 * [backup-simplify]: Simplify 0 into 0
12.435 * [backup-simplify]: Simplify 1 into 1
12.435 * [backup-simplify]: Simplify (* 1 1) into 1
12.435 * [backup-simplify]: Simplify (/ 1 1) into 1
12.435 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
12.436 * [taylor]: Taking taylor expansion of (pow y 2) in x
12.436 * [taylor]: Taking taylor expansion of y in x
12.436 * [backup-simplify]: Simplify y into y
12.436 * [backup-simplify]: Simplify (* y y) into (pow y 2)
12.436 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
12.436 * [backup-simplify]: Simplify (+ 1 0) into 1
12.436 * [taylor]: Taking taylor expansion of 1 in y
12.436 * [backup-simplify]: Simplify 1 into 1
12.436 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
12.437 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
12.437 * [backup-simplify]: Simplify (+ 0 0) into 0
12.437 * [taylor]: Taking taylor expansion of 0 in y
12.437 * [backup-simplify]: Simplify 0 into 0
12.438 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
12.438 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.438 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
12.439 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
12.439 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
12.439 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
12.439 * [taylor]: Taking taylor expansion of (pow y 2) in y
12.439 * [taylor]: Taking taylor expansion of y in y
12.439 * [backup-simplify]: Simplify 0 into 0
12.439 * [backup-simplify]: Simplify 1 into 1
12.439 * [backup-simplify]: Simplify (* 1 1) into 1
12.439 * [backup-simplify]: Simplify (/ 1 1) into 1
12.439 * [backup-simplify]: Simplify (- 1) into -1
12.439 * [backup-simplify]: Simplify -1 into -1
12.439 * [backup-simplify]: Simplify 1 into 1
12.440 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
12.441 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.441 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
12.441 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
12.441 * [backup-simplify]: Simplify (- 0) into 0
12.441 * [backup-simplify]: Simplify (+ 0 0) into 0
12.441 * [taylor]: Taking taylor expansion of 0 in y
12.442 * [backup-simplify]: Simplify 0 into 0
12.442 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
12.443 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
12.444 * [backup-simplify]: Simplify (- 0) into 0
12.444 * [backup-simplify]: Simplify 0 into 0
12.444 * [backup-simplify]: Simplify 0 into 0
12.444 * [backup-simplify]: Simplify 0 into 0
12.445 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
12.446 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.446 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
12.447 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
12.447 * [backup-simplify]: Simplify (- 0) into 0
12.447 * [backup-simplify]: Simplify (+ 0 0) into 0
12.448 * [taylor]: Taking taylor expansion of 0 in y
12.448 * [backup-simplify]: Simplify 0 into 0
12.448 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
12.449 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.450 * [backup-simplify]: Simplify (- 0) into 0
12.450 * [backup-simplify]: Simplify 0 into 0
12.450 * [backup-simplify]: Simplify 0 into 0
12.450 * [backup-simplify]: Simplify 0 into 0
12.450 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
12.451 * [backup-simplify]: Simplify (- (* (/ 1 (- x)) (/ 1 (- x))) (* (/ 1 (- y)) (/ 1 (- y)))) into (- (/ 1 (pow x 2)) (/ 1 (pow y 2)))
12.451 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
12.451 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
12.451 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
12.451 * [taylor]: Taking taylor expansion of (pow x 2) in y
12.451 * [taylor]: Taking taylor expansion of x in y
12.451 * [backup-simplify]: Simplify x into x
12.451 * [backup-simplify]: Simplify (* x x) into (pow x 2)
12.451 * [backup-simplify]: Simplify (/ 1 (pow x 2)) into (/ 1 (pow x 2))
12.451 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
12.451 * [taylor]: Taking taylor expansion of (pow y 2) in y
12.451 * [taylor]: Taking taylor expansion of y in y
12.451 * [backup-simplify]: Simplify 0 into 0
12.451 * [backup-simplify]: Simplify 1 into 1
12.452 * [backup-simplify]: Simplify (* 1 1) into 1
12.452 * [backup-simplify]: Simplify (/ 1 1) into 1
12.452 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
12.452 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
12.452 * [taylor]: Taking taylor expansion of (pow x 2) in x
12.452 * [taylor]: Taking taylor expansion of x in x
12.452 * [backup-simplify]: Simplify 0 into 0
12.452 * [backup-simplify]: Simplify 1 into 1
12.453 * [backup-simplify]: Simplify (* 1 1) into 1
12.453 * [backup-simplify]: Simplify (/ 1 1) into 1
12.453 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
12.453 * [taylor]: Taking taylor expansion of (pow y 2) in x
12.453 * [taylor]: Taking taylor expansion of y in x
12.453 * [backup-simplify]: Simplify y into y
12.453 * [backup-simplify]: Simplify (* y y) into (pow y 2)
12.453 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
12.453 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
12.453 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
12.453 * [taylor]: Taking taylor expansion of (pow x 2) in x
12.453 * [taylor]: Taking taylor expansion of x in x
12.454 * [backup-simplify]: Simplify 0 into 0
12.454 * [backup-simplify]: Simplify 1 into 1
12.454 * [backup-simplify]: Simplify (* 1 1) into 1
12.454 * [backup-simplify]: Simplify (/ 1 1) into 1
12.454 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
12.454 * [taylor]: Taking taylor expansion of (pow y 2) in x
12.454 * [taylor]: Taking taylor expansion of y in x
12.454 * [backup-simplify]: Simplify y into y
12.455 * [backup-simplify]: Simplify (* y y) into (pow y 2)
12.455 * [backup-simplify]: Simplify (/ 1 (pow y 2)) into (/ 1 (pow y 2))
12.455 * [backup-simplify]: Simplify (+ 1 0) into 1
12.455 * [taylor]: Taking taylor expansion of 1 in y
12.455 * [backup-simplify]: Simplify 1 into 1
12.456 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
12.457 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
12.457 * [backup-simplify]: Simplify (+ 0 0) into 0
12.457 * [taylor]: Taking taylor expansion of 0 in y
12.457 * [backup-simplify]: Simplify 0 into 0
12.458 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
12.458 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.459 * [backup-simplify]: Simplify (- (/ 1 (pow y 2))) into (- (/ 1 (pow y 2)))
12.459 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 2)))) into (- (/ 1 (pow y 2)))
12.459 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
12.459 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
12.459 * [taylor]: Taking taylor expansion of (pow y 2) in y
12.459 * [taylor]: Taking taylor expansion of y in y
12.459 * [backup-simplify]: Simplify 0 into 0
12.459 * [backup-simplify]: Simplify 1 into 1
12.459 * [backup-simplify]: Simplify (* 1 1) into 1
12.459 * [backup-simplify]: Simplify (/ 1 1) into 1
12.460 * [backup-simplify]: Simplify (- 1) into -1
12.460 * [backup-simplify]: Simplify -1 into -1
12.460 * [backup-simplify]: Simplify 1 into 1
12.460 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
12.461 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.461 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
12.461 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))))) into 0
12.461 * [backup-simplify]: Simplify (- 0) into 0
12.462 * [backup-simplify]: Simplify (+ 0 0) into 0
12.462 * [taylor]: Taking taylor expansion of 0 in y
12.462 * [backup-simplify]: Simplify 0 into 0
12.462 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
12.462 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
12.463 * [backup-simplify]: Simplify (- 0) into 0
12.463 * [backup-simplify]: Simplify 0 into 0
12.463 * [backup-simplify]: Simplify 0 into 0
12.463 * [backup-simplify]: Simplify 0 into 0
12.463 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
12.464 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.464 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
12.465 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 2)) (/ 0 (pow y 2))) (* 0 (/ 0 (pow y 2))))) into 0
12.465 * [backup-simplify]: Simplify (- 0) into 0
12.465 * [backup-simplify]: Simplify (+ 0 0) into 0
12.465 * [taylor]: Taking taylor expansion of 0 in y
12.465 * [backup-simplify]: Simplify 0 into 0
12.466 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
12.466 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
12.467 * [backup-simplify]: Simplify (- 0) into 0
12.467 * [backup-simplify]: Simplify 0 into 0
12.467 * [backup-simplify]: Simplify 0 into 0
12.467 * [backup-simplify]: Simplify 0 into 0
12.467 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
12.467 * * * [progress]: simplifying candidates
12.467 * [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))
12.468 * * [simplify]: Extracting # 0 : cost  0
12.468 * * [simplify]: Extracting # 1 : cost  0
12.468 * * [simplify]: Extracting # 2 : cost  0
12.468 * * [simplify]: Extracting # 3 : cost  0
12.468 * * [simplify]: Extracting # 4 : cost  0
12.468 * * [simplify]: Extracting # 5 : cost  0
12.468 * * [simplify]: iteration  0 :  38  enodes  (cost  214 )
12.481 * * [simplify]: Extracting # 0 : cost  0
12.482 * * [simplify]: Extracting # 1 : cost  0
12.482 * * [simplify]: Extracting # 2 : cost  0
12.482 * * [simplify]: Extracting # 3 : cost  0
12.482 * * [simplify]: Extracting # 4 : cost  0
12.482 * * [simplify]: iteration  1 :  100  enodes  (cost  205 )
12.528 * * [simplify]: Extracting # 0 : cost  0
12.529 * * [simplify]: Extracting # 1 : cost  0
12.529 * * [simplify]: Extracting # 2 : cost  0
12.529 * * [simplify]: Extracting # 3 : cost  0
12.530 * * [simplify]: Extracting # 4 : cost  0
12.530 * * [simplify]: iteration  2 :  291  enodes  (cost  175 )
12.690 * * [simplify]: Extracting # 0 : cost  0
12.692 * * [simplify]: Extracting # 1 : cost  0
12.694 * * [simplify]: Extracting # 2 : cost  0
12.696 * * [simplify]: Extracting # 3 : cost  0
12.697 * * [simplify]: Extracting # 4 : cost  0
12.699 * * [simplify]: iteration  3 :  922  enodes  (cost  175 )
14.156 * * [simplify]: Extracting # 0 : cost  0
14.175 * * [simplify]: Extracting # 1 : cost  0
14.181 * * [simplify]: Extracting # 2 : cost  0
14.188 * * [simplify]: Extracting # 3 : cost  0
14.194 * * [simplify]: Extracting # 4 : cost  0
14.200 * * [simplify]: iteration  4 :  4017  enodes  (cost  170 )
15.739 * * [simplify]: Extracting # 0 : cost  0
15.748 * * [simplify]: Extracting # 1 : cost  0
15.757 * * [simplify]: iteration done:  5000  enodes  (cost  170 )
15.757 * [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)))
15.758 * * * [progress]: adding candidates to table
15.820 * * [progress]: iteration 2 / 4
15.820 * * * [progress]: picking best candidate
15.821 * * * * [pick]: Picked  #<alt (λ (x y) (+ (fma x x (- (* y y))) 0))>
15.821 * * * [progress]: localizing error
15.828 * * * [progress]: generating rewritten candidates
15.828 * * * [progress]: generating series expansions
15.828 * * * [progress]: simplifying candidates
15.828 * [simplify]: Simplifying:
  
15.828 * * [simplify]: Extracting # 0 : cost  0
15.828 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
15.829 * * [simplify]: Extracting # 0 : cost  0
15.829 * * [simplify]: iteration done:  0  enodes  (cost  0 )
15.829 * [simplify]: Simplified to:
  
15.829 * * * [progress]: adding candidates to table
15.829 * [progress]: [Phase 3 of 3] Extracting.
15.830 * [simplify]: Simplifying:
  (+ (fma x x (- (* y y))) 0)
15.831 * * [simplify]: Extracting # 0 : cost  0
15.831 * * [simplify]: Extracting # 1 : cost  0
15.831 * * [simplify]: Extracting # 2 : cost  0
15.831 * * [simplify]: Extracting # 3 : cost  0
15.831 * * [simplify]: Extracting # 4 : cost  0
15.831 * * [simplify]: Extracting # 5 : cost  0
15.831 * * [simplify]: Extracting # 6 : cost  0
15.831 * * [simplify]: iteration  0 :  7  enodes  (cost  9 )
15.831 * * [simplify]: Extracting # 0 : cost  0
15.831 * * [simplify]: Extracting # 1 : cost  0
15.831 * * [simplify]: Extracting # 2 : cost  0
15.831 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
15.832 * * [simplify]: Extracting # 0 : cost  0
15.832 * * [simplify]: iteration done:  11  enodes  (cost  7 )
15.832 * [simplify]: Simplified to:
  (fma x x (- (* y y)))
16.998 * [regime-testing]: End program error score: 0.004573692024093157