11.022 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.022 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.026 * * [simplify]: iteration  0 :  11  enodes  (cost  3 )
0.027 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
0.029 * * [simplify]: iteration  2 :  35  enodes  (cost  3 )
0.030 * * [simplify]: iteration  3 :  67  enodes  (cost  3 )
0.032 * * [simplify]: iteration  4 :  163  enodes  (cost  3 )
0.035 * * [simplify]: iteration  5 :  294  enodes  (cost  3 )
0.039 * * [simplify]: iteration  6 :  541  enodes  (cost  3 )
0.048 * * [simplify]: iteration  7 :  2138  enodes  (cost  3 )
0.105 * * [simplify]: iteration  8 :  5001  enodes  (cost  3 )
0.105 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.105 * * [progress]: iteration 1 / 4
0.105 * * * [progress]: picking best candidate
0.107 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.107 * * * [progress]: localizing error
0.111 * * * [progress]: generating rewritten candidates
0.111 * * * [progress]: generating series expansions
0.111 * * * [progress]: simplifying candidates
0.111 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.113 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.113 * [simplify]: Simplified to:
   
0.113 * * * [progress]: adding candidates to table
0.113 * [progress]: [Phase 3 of 3] Extracting.
0.115 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.115 * * [simplify]: iteration  0 :  5  enodes  (cost  3 )
0.115 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.715 * [regime-testing]: End program error score: 0.007074004563160539
0.732 * [regime-testing]: Target error score: 0.0011251406425803225