42.045 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.082 * * * [progress]: [2/2] Setting up program.
0.085 * [progress]: [Phase 2 of 3] Improving.
0.085 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.189 * * [simplify]: iteration  0 :  6509  enodes  (cost  7 )
0.190 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.190 * * [progress]: iteration 1 / 4
0.190 * * * [progress]: picking best candidate
0.192 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.192 * * * [progress]: localizing error
0.196 * * * [progress]: generating rewritten candidates
0.196 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.200 * * * [progress]: generating series expansions
0.200 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.200 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
0.200 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
0.200 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.200 * [taylor]: Taking taylor expansion of a in b
0.200 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.200 * [taylor]: Taking taylor expansion of b in b
0.200 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.200 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.200 * [taylor]: Taking taylor expansion of a in a
0.200 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.201 * [taylor]: Taking taylor expansion of b in a
0.201 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.201 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.201 * [taylor]: Taking taylor expansion of a in a
0.201 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.201 * [taylor]: Taking taylor expansion of b in a
0.201 * [taylor]: Taking taylor expansion of (neg (pow b 2)) in b
0.201 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.201 * [taylor]: Taking taylor expansion of b in b
0.201 * [taylor]: Taking taylor expansion of 0 in b
0.201 * [taylor]: Taking taylor expansion of 1 in b
0.201 * [taylor]: Taking taylor expansion of 0 in b
0.201 * [taylor]: Taking taylor expansion of 0 in b
0.202 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.202 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.202 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.202 * [taylor]: Taking taylor expansion of a in b
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.202 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.202 * [taylor]: Taking taylor expansion of b in b
0.202 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.202 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.202 * [taylor]: Taking taylor expansion of a in a
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.202 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.202 * [taylor]: Taking taylor expansion of b in a
0.202 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.202 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.202 * [taylor]: Taking taylor expansion of a in a
0.202 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.202 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.202 * [taylor]: Taking taylor expansion of b in a
0.202 * [taylor]: Taking taylor expansion of 1 in b
0.202 * [taylor]: Taking taylor expansion of 0 in b
0.203 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow b 2))) in b
0.203 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.203 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.203 * [taylor]: Taking taylor expansion of b in b
0.203 * [taylor]: Taking taylor expansion of 0 in b
0.203 * [taylor]: Taking taylor expansion of 0 in b
0.204 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.204 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.204 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.204 * [taylor]: Taking taylor expansion of a in b
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.204 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.204 * [taylor]: Taking taylor expansion of b in b
0.204 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.204 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.204 * [taylor]: Taking taylor expansion of a in a
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.204 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.204 * [taylor]: Taking taylor expansion of b in a
0.204 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.204 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.204 * [taylor]: Taking taylor expansion of a in a
0.204 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.204 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.204 * [taylor]: Taking taylor expansion of b in a
0.204 * [taylor]: Taking taylor expansion of 1 in b
0.204 * [taylor]: Taking taylor expansion of 0 in b
0.205 * [taylor]: Taking taylor expansion of (neg (/ 1 (pow b 2))) in b
0.205 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.205 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.205 * [taylor]: Taking taylor expansion of b in b
0.205 * [taylor]: Taking taylor expansion of 0 in b
0.205 * [taylor]: Taking taylor expansion of 0 in b
0.206 * * * [progress]: simplifying candidates
0.206 * [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))
0.256 * * [simplify]: iteration  0 :  4881  enodes  (cost  141 )
0.256 * * [simplify]: iteration  1 :  4881  enodes  (cost  141 )
0.257 * [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))
0.257 * * * [progress]: adding candidates to table
0.273 * * [progress]: iteration 2 / 4
0.273 * * * [progress]: picking best candidate
0.275 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
0.275 * * * [progress]: localizing error
0.279 * * * [progress]: generating rewritten candidates
0.279 * * * [progress]: generating series expansions
0.279 * * * [progress]: simplifying candidates
0.279 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.281 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.281 * [simplify]: Simplified to:
   
0.281 * * * [progress]: adding candidates to table
0.281 * [progress]: [Phase 3 of 3] Extracting.
0.283 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ a b) (- a b))
0.284 * * [simplify]: iteration  0 :  17  enodes  (cost  7 )
0.284 * * [simplify]: iteration  1 :  17  enodes  (cost  7 )
0.284 * [simplify]: Simplified to:
   (* (+ a b) (- a b))
0.768 * [regime-testing]: End program error score: 0.0008751093886735842
0.830 * [regime-testing]: Target error score: 0.0008751093886735842