7.619 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.027 * [progress]: [Phase 2 of 3] Improving.
0.028 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.030 * * [simplify]: iteration  0 :  10  enodes  (cost  3 )
0.031 * * [simplify]: iteration  1 :  17  enodes  (cost  3 )
0.032 * * [simplify]: iteration  2 :  32  enodes  (cost  3 )
0.034 * * [simplify]: iteration  3 :  58  enodes  (cost  3 )
0.035 * * [simplify]: iteration  4 :  129  enodes  (cost  3 )
0.038 * * [simplify]: iteration  5 :  207  enodes  (cost  3 )
0.041 * * [simplify]: iteration  6 :  393  enodes  (cost  3 )
0.050 * * [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))
0.108 * * [progress]: iteration 1 / 4
0.108 * * * [progress]: picking best candidate
0.110 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.110 * * * [progress]: localizing error
0.114 * * * [progress]: generating rewritten candidates
0.114 * * * [progress]: generating series expansions
0.114 * * * [progress]: simplifying candidates
0.114 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.116 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.116 * [simplify]: Simplified to:
   
0.116 * * * [progress]: adding candidates to table
0.117 * [progress]: [Phase 3 of 3] Extracting.
0.119 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.120 * * [simplify]: iteration  0 :  5  enodes  (cost  3 )
0.120 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.975 * [regime-testing]: End program error score: 0.006375796974621828
1.040 * [regime-testing]: Target error score: 0.0011251406425803225