3.639 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.030 * * * [progress]: [2/2] Setting up program.
0.031 * [progress]: [Phase 2 of 3] Improving.
0.031 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.033 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.035 * * [simplify]: iteration  1 :  17  enodes  (cost  3 )
0.036 * * [simplify]: iteration  2 :  32  enodes  (cost  3 )
0.037 * * [simplify]: iteration  3 :  58  enodes  (cost  3 )
0.039 * * [simplify]: iteration  4 :  129  enodes  (cost  3 )
0.041 * * [simplify]: iteration  5 :  207  enodes  (cost  3 )
0.045 * * [simplify]: iteration  6 :  393  enodes  (cost  3 )
0.053 * * [simplify]: iteration  7 :  1794  enodes  (cost  3 )
0.107 * * [simplify]: iteration  8 :  5001  enodes  (cost  3 )
0.107 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.107 * * [progress]: iteration 1 / 4
0.107 * * * [progress]: picking best candidate
0.109 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.109 * * * [progress]: localizing error
0.113 * * * [progress]: generating rewritten candidates
0.113 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.116 * * * [progress]: generating series expansions
0.116 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.116 * [approximate]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in (a b) around 0
0.116 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in b
0.116 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.116 * [taylor]: Taking taylor expansion of a in b
0.116 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.116 * [taylor]: Taking taylor expansion of b in b
0.116 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.116 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.116 * [taylor]: Taking taylor expansion of a in a
0.116 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.116 * [taylor]: Taking taylor expansion of b in a
0.116 * [taylor]: Taking taylor expansion of (- (pow a 2) (pow b 2)) in a
0.116 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.116 * [taylor]: Taking taylor expansion of a in a
0.116 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.116 * [taylor]: Taking taylor expansion of b in a
0.117 * [taylor]: Taking taylor expansion of (- (pow b 2)) in b
0.117 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.117 * [taylor]: Taking taylor expansion of b in b
0.117 * [taylor]: Taking taylor expansion of 0 in b
0.118 * [taylor]: Taking taylor expansion of 1 in b
0.120 * [taylor]: Taking taylor expansion of 0 in b
0.122 * [taylor]: Taking taylor expansion of 0 in b
0.123 * [approximate]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in (a b) around 0
0.123 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in b
0.123 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in b
0.123 * [taylor]: Taking taylor expansion of (pow a 2) in b
0.123 * [taylor]: Taking taylor expansion of a in b
0.123 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.123 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.123 * [taylor]: Taking taylor expansion of b in b
0.123 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.123 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.123 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.123 * [taylor]: Taking taylor expansion of a in a
0.124 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.124 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.124 * [taylor]: Taking taylor expansion of b in a
0.124 * [taylor]: Taking taylor expansion of (- (/ 1 (pow a 2)) (/ 1 (pow b 2))) in a
0.124 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.124 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.124 * [taylor]: Taking taylor expansion of a in a
0.125 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in a
0.125 * [taylor]: Taking taylor expansion of (pow b 2) in a
0.125 * [taylor]: Taking taylor expansion of b in a
0.125 * [taylor]: Taking taylor expansion of 1 in b
0.126 * [taylor]: Taking taylor expansion of 0 in b
0.127 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
0.127 * [taylor]: Taking taylor expansion of (/ 1 (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
0.130 * [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
0.135 * [taylor]: Taking taylor expansion of b in b
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 (pow a 2)) (/ 1 (pow b 2))) in a
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow a 2)) in a
0.136 * [taylor]: Taking taylor expansion of (pow a 2) in a
0.136 * [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
0.137 * [taylor]: Taking taylor expansion of 1 in b
0.138 * [taylor]: Taking taylor expansion of 0 in b
0.139 * [taylor]: Taking taylor expansion of (- (/ 1 (pow b 2))) in b
0.139 * [taylor]: Taking taylor expansion of (/ 1 (pow b 2)) in b
0.139 * [taylor]: Taking taylor expansion of (pow b 2) in b
0.139 * [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 * * * [progress]: simplifying candidates
0.146 * [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))))
  (- (* 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))
0.149 * * [simplify]: iteration  0 :  93  enodes  (cost  83 )
0.151 * * [simplify]: iteration  1 :  375  enodes  (cost  72 )
0.158 * * [simplify]: iteration  2 :  1243  enodes  (cost  72 )
0.184 * * [simplify]: iteration  3 :  5001  enodes  (cost  72 )
0.184 * [simplify]: Simplified to:
   (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)))
  (- (pow (* a a) 3) (pow (* b b) 3))
  (+ (+ (pow a 4) (* (* a a) (* b b))) (pow b 4))
  (- (* b b))
  (+ (* (- (pow b 3)) b) (pow a 4))
  (+ (* a a) (* b b))
  (+ a b)
  (- a b)
  (- (* b b))
  (- (* a a) (* b b))
  (- (* a a) (* b b))
  (- (* a a) (* b b))
0.184 * * * [progress]: adding candidates to table
0.211 * * [progress]: iteration 2 / 4
0.211 * * * [progress]: picking best candidate
0.212 * * * * [pick]: Picked  #<alt (λ (a b) (* (+ a b) (- a b)))>
0.212 * * * [progress]: localizing error
0.217 * * * [progress]: generating rewritten candidates
0.217 * * * [progress]: generating series expansions
0.217 * * * [progress]: simplifying candidates
0.217 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.219 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.219 * [simplify]: Simplified to:
   
0.219 * * * [progress]: adding candidates to table
0.219 * [progress]: [Phase 3 of 3] Extracting.
0.220 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ a b) (- a b))
0.221 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.221 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.221 * [simplify]: Simplified to:
   (* (+ a b) (- a b))
1.149 * [regime-testing]: End program error score: 0.0007500937617202151
1.167 * [regime-testing]: Target error score: 0.0007500937617202151