5.347 * [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.
0.030 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.033 * * [simplify]: iteration  0 :  11  enodes  (cost  3 )
0.034 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
0.036 * * [simplify]: iteration  2 :  35  enodes  (cost  3 )
0.037 * * [simplify]: iteration  3 :  67  enodes  (cost  3 )
0.039 * * [simplify]: iteration  4 :  163  enodes  (cost  3 )
0.042 * * [simplify]: iteration  5 :  294  enodes  (cost  3 )
0.046 * * [simplify]: iteration  6 :  541  enodes  (cost  3 )
0.056 * * [simplify]: iteration  7 :  2138  enodes  (cost  3 )
0.116 * * [simplify]: iteration  8 :  5001  enodes  (cost  3 )
0.117 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.117 * * [progress]: iteration 1 / 4
0.117 * * * [progress]: picking best candidate
0.119 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.119 * * * [progress]: localizing error
0.123 * * * [progress]: generating rewritten candidates
0.123 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.126 * * * [progress]: generating series expansions
0.126 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.127 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
0.127 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
0.127 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.127 * [taylor]: Taking taylor expansion of a in b
0.127 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.127 * [taylor]: Taking taylor expansion of b in b
0.127 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.127 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.127 * [taylor]: Taking taylor expansion of a in a
0.127 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.127 * [taylor]: Taking taylor expansion of b in a
0.127 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.127 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.127 * [taylor]: Taking taylor expansion of a in a
0.127 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.127 * [taylor]: Taking taylor expansion of b in a
0.127 * [taylor]: Taking taylor expansion of (- (pow b 2)) in b
0.127 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.127 * [taylor]: Taking taylor expansion of b in b
0.128 * [taylor]: Taking taylor expansion of 0 in b
0.129 * [taylor]: Taking taylor expansion of 1 in b
0.131 * [taylor]: Taking taylor expansion of 0 in b
0.133 * [taylor]: Taking taylor expansion of 0 in b
0.134 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.134 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.134 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.134 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.134 * [taylor]: Taking taylor expansion of a in b
0.134 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.134 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.134 * [taylor]: Taking taylor expansion of b in b
0.134 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.134 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.134 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.134 * [taylor]: Taking taylor expansion of a in a
0.135 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.135 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.135 * [taylor]: Taking taylor expansion of b in a
0.135 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.135 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.135 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.135 * [taylor]: Taking taylor expansion of a in a
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.136 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.136 * [taylor]: Taking taylor expansion of b in a
0.136 * [taylor]: Taking taylor expansion of 1 in b
0.137 * [taylor]: Taking taylor expansion of 0 in b
0.138 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
0.138 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.138 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.138 * [taylor]: Taking taylor expansion of b in b
0.141 * [taylor]: Taking taylor expansion of 0 in b
0.144 * [taylor]: Taking taylor expansion of 0 in b
0.146 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.146 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.146 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.146 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.146 * [taylor]: Taking taylor expansion of a in b
0.146 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.146 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.146 * [taylor]: Taking taylor expansion of b in b
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.147 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.147 * [taylor]: Taking taylor expansion of a in a
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.147 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.147 * [taylor]: Taking taylor expansion of b in a
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.147 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.147 * [taylor]: Taking taylor expansion of a in a
0.148 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.148 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.148 * [taylor]: Taking taylor expansion of b in a
0.148 * [taylor]: Taking taylor expansion of 1 in b
0.149 * [taylor]: Taking taylor expansion of 0 in b
0.151 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
0.151 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.151 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.151 * [taylor]: Taking taylor expansion of b in b
0.153 * [taylor]: Taking taylor expansion of 0 in b
0.156 * [taylor]: Taking taylor expansion of 0 in b
0.158 * * * [progress]: simplifying candidates
0.158 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (fma a a (- (* b b)))
  (fma (- b) b (* b b))
  (expm1 (- (* a a) (* b b)))
  (log1p (- (* a a) (* b b)))
  (- (* b b))
  (/ (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))))
  (- (* b b))
  (- (* (* a a) (* a a)) (* (* b b) (* b b)))
  (+ (* a a) (* b b))
  (+ a b)
  (- a b)
  (- (* b b))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
  (- (pow a 2) (pow b 2))
0.161 * * [simplify]: iteration  0 :  102  enodes  (cost  97 )
0.164 * * [simplify]: iteration  1 :  416  enodes  (cost  87 )
0.171 * * [simplify]: iteration  2 :  1403  enodes  (cost  84 )
0.198 * * [simplify]: iteration  3 :  5002  enodes  (cost  80 )
0.199 * [simplify]: Simplified to:
   (- (* a a) (* b b))
  0
  (expm1 (- (* a a) (* b b)))
  (log1p (- (* a a) (* b b)))
  (- (* b b))
  (exp (- (* a a) (* 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)))
  (pow (- (* a a) (* b b)) 3)
  (sqrt (- (* a a) (* b b)))
  (sqrt (- (* a a) (* b b)))
  (fma (- (pow b 5)) b (pow a 6))
  (fma b (* b (fma a a (* b b))) (pow a 4))
  (- (* b b))
  (fma (- (pow b 3)) b (pow a 4))
  (fma a a (* b b))
  (+ a b)
  (- a b)
  (- (* b b))
  (- (* a a) (* b b))
  (- (* a a) (* b b))
  (- (* a a) (* b b))
0.199 * * * [progress]: adding candidates to table
0.235 * * [progress]: iteration 2 / 4
0.236 * * * [progress]: picking best candidate
0.237 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
0.237 * * * [progress]: localizing error
0.241 * * * [progress]: generating rewritten candidates
0.241 * * * [progress]: generating series expansions
0.241 * * * [progress]: simplifying candidates
0.241 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.243 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.243 * [simplify]: Simplified to:
   
0.243 * * * [progress]: adding candidates to table
0.244 * [progress]: [Phase 3 of 3] Extracting.
0.245 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ a b) (- a b))
0.245 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.246 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.246 * [simplify]: Simplified to:
   (* (+ a b) (- a b))
1.076 * [regime-testing]: End program error score: 0.0008751093886735842
1.094 * [regime-testing]: Target error score: 0.0008751093886735842