40.958 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.106 * * * [progress]: [2/2] Setting up program.
0.109 * [progress]: [Phase 2 of 3] Improving.
0.110 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.349 * * [simplify]: iteration  0 :  6558  enodes  (cost  7 )
0.349 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.350 * * [progress]: iteration 1 / 4
0.350 * * * [progress]: picking best candidate
0.352 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.352 * * * [progress]: localizing error
0.357 * * * [progress]: generating rewritten candidates
0.357 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.360 * * * [progress]: generating series expansions
0.360 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.361 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
0.361 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
0.361 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.361 * [taylor]: Taking taylor expansion of a in b
0.361 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.361 * [taylor]: Taking taylor expansion of b in b
0.361 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.361 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.361 * [taylor]: Taking taylor expansion of a in a
0.361 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.361 * [taylor]: Taking taylor expansion of b in a
0.361 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.361 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.361 * [taylor]: Taking taylor expansion of a in a
0.361 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.361 * [taylor]: Taking taylor expansion of b in a
0.361 * [taylor]: Taking taylor expansion of (neg (pow b 2)) in b
0.361 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.361 * [taylor]: Taking taylor expansion of b in b
0.361 * [taylor]: Taking taylor expansion of 0 in b
0.361 * [taylor]: Taking taylor expansion of 1 in b
0.361 * [taylor]: Taking taylor expansion of 0 in b
0.362 * [taylor]: Taking taylor expansion of 0 in b
0.362 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.362 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.362 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.362 * [taylor]: Taking taylor expansion of a in b
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.362 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.362 * [taylor]: Taking taylor expansion of b in b
0.362 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.362 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.362 * [taylor]: Taking taylor expansion of a in a
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.362 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.362 * [taylor]: Taking taylor expansion of b in a
0.362 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.362 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.362 * [taylor]: Taking taylor expansion of a in a
0.362 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.362 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.362 * [taylor]: Taking taylor expansion of b in a
0.363 * [taylor]: Taking taylor expansion of 1 in b
0.363 * [taylor]: Taking taylor expansion of 0 in b
0.363 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow b 2))) in b
0.363 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.363 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.363 * [taylor]: Taking taylor expansion of b in b
0.363 * [taylor]: Taking taylor expansion of 0 in b
0.364 * [taylor]: Taking taylor expansion of 0 in b
0.364 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.364 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.364 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.364 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.364 * [taylor]: Taking taylor expansion of a in b
0.364 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.364 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.364 * [taylor]: Taking taylor expansion of b in b
0.364 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.364 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.364 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.364 * [taylor]: Taking taylor expansion of a in a
0.364 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.364 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.364 * [taylor]: Taking taylor expansion of b in a
0.364 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.364 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.364 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.364 * [taylor]: Taking taylor expansion of a in a
0.365 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.365 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.365 * [taylor]: Taking taylor expansion of b in a
0.365 * [taylor]: Taking taylor expansion of 1 in b
0.365 * [taylor]: Taking taylor expansion of 0 in b
0.365 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow b 2))) in b
0.365 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.365 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.365 * [taylor]: Taking taylor expansion of b in b
0.365 * [taylor]: Taking taylor expansion of 0 in b
0.366 * [taylor]: Taking taylor expansion of 0 in b
0.366 * * * [progress]: simplifying candidates
0.366 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp (* a a)) (exp (* b b)))
  (log (- (* a a) (* b b)))
  (exp (- (* a a) (* b b)))
  (* (cbrt (- (* a a) (* b b))) (cbrt (- (* a a) (* b b))))
  (cbrt (- (* a a) (* b b)))
  (* (* (- (* a a) (* b b)) (- (* a a) (* b b))) (- (* a a) (* b b)))
  (sqrt (- (* a a) (* b b)))
  (sqrt (- (* a a) (* b b)))
  (- (pow (* a a) 3) (pow (* b b) 3))
  (+ (* (* a a) (* a a)) (+ (* (* b b) (* b b)) (* (* a a) (* b b))))
  (neg (* b b))
  (- (* (* a a) (* a a)) (* (* b b) (* b b)))
  (+ (* a a) (* b b))
  (+ a b)
  (- a b)
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
0.397 * * [simplify]: iteration  0 :  5487  enodes  (cost  141 )
0.399 * [simplify]: Simplified to:
   (pow (exp (+ a b)) (- a b))
  (log (- (* a a) (* b b)))
  (pow (exp (+ a b)) (- a b))
  (* (cbrt (- (* a a) (* b b))) (cbrt (- (* a a) (* b b))))
  (cbrt (- (* a a) (* b b)))
  (pow (- (* a a) (* b b)) 3)
  (sqrt (- (* a a) (* b b)))
  (sqrt (- (* a a) (* b b)))
  (- (pow a 6) (pow b 6))
  (+ (pow a 4) (+ (pow b 4) (* a (* a (* b b)))))
  (* b (neg b))
  (- (pow a 4) (pow b 4))
  (+ (* a a) (* b b))
  (+ a b)
  (- a b)
  (- (* a a) (* b b))
  (- (* a a) (* b b))
  (- (* a a) (* b b))
0.399 * * * [progress]: adding candidates to table
0.420 * * [progress]: iteration 2 / 4
0.420 * * * [progress]: picking best candidate
0.422 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
0.422 * * * [progress]: localizing error
0.426 * * * [progress]: generating rewritten candidates
0.426 * * * [progress]: generating series expansions
0.426 * * * [progress]: simplifying candidates
0.426 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.428 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.429 * [simplify]: Simplified to:
   
0.429 * * * [progress]: adding candidates to table
0.429 * [progress]: [Phase 3 of 3] Extracting.
0.431 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ a b) (- a b))
0.432 * * [simplify]: iteration  0 :  40  enodes  (cost  7 )
0.432 * * [simplify]: iteration  1 :  40  enodes  (cost  7 )
0.432 * [simplify]: Simplified to:
   (* (+ a b) (- a b))
1.015 * [regime-testing]: End program error score: 0.0008751093886735842
1.121 * [regime-testing]: Target error score: 0.0008751093886735842