12.802 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x (/ (- y x) 2.0))
0.023 * * [simplify]: iteration  0 :  12  enodes  (cost  3 )
0.024 * * [simplify]: iteration  1 :  19  enodes  (cost  3 )
0.025 * * [simplify]: iteration  2 :  28  enodes  (cost  3 )
0.027 * * [simplify]: iteration  3 :  40  enodes  (cost  3 )
0.028 * * [simplify]: iteration  4 :  50  enodes  (cost  3 )
0.029 * * [simplify]: iteration  5 :  73  enodes  (cost  3 )
0.031 * * [simplify]: iteration  6 :  102  enodes  (cost  3 )
0.032 * * [simplify]: iteration  7 :  118  enodes  (cost  3 )
0.034 * * [simplify]: iteration  8 :  145  enodes  (cost  3 )
0.035 * * [simplify]: iteration  9 :  174  enodes  (cost  3 )
0.037 * * [simplify]: iteration  10 :  190  enodes  (cost  3 )
0.039 * * [simplify]: iteration  11 :  190  enodes  (cost  3 )
0.039 * [simplify]: Simplified to:
   (+ x (/ (- y x) 2.0))
0.039 * * [progress]: iteration 1 / 4
0.039 * * * [progress]: picking best candidate
0.040 * * * * [pick]: Picked  #<alt (λ (x y) (+ x (/ (- y x) 2.0)))>
0.040 * * * [progress]: localizing error
0.045 * * * [progress]: generating rewritten candidates
0.045 * * * [progress]: generating series expansions
0.045 * * * [progress]: simplifying candidates
0.045 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.047 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.047 * [simplify]: Simplified to:
   
0.047 * * * [progress]: adding candidates to table
0.048 * [progress]: [Phase 3 of 3] Extracting.
0.049 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x (/ (- y x) 2.0))
0.050 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.050 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.050 * [simplify]: Simplified to:
   (+ x (/ (- y x) 2.0))
0.365 * [regime-testing]: End program error score: 0.016617678772797323
0.384 * [regime-testing]: Target error score: 0