73.298 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.023 * * * [progress]: [2/2] Setting up program.
0.024 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+.f64 x (/.f64 (-.f64 y x) 2))
0.272 * * [simplify]: iteration  0 :  4905  enodes  (cost  7 )
0.272 * * [simplify]: iteration  1 :  4905  enodes  (cost  7 )
0.273 * [simplify]: Simplified to:
   (*.f64 1/2 (+.f64 x y))
0.276 * * [progress]: iteration 1 / 4
0.276 * * * [progress]: picking best candidate
0.276 * * * * [pick]: Picked  #<alt (λ (x y) (*.f64 1/2 (+.f64 x y)))>
0.276 * * * [progress]: localizing error
0.280 * * * [progress]: generating rewritten candidates
0.280 * * * [progress]: generating series expansions
0.280 * * * [progress]: simplifying candidates
0.280 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.291 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.291 * [simplify]: Simplified to:
   
0.291 * * * [progress]: adding candidates to table
0.292 * [progress]: [Phase 3 of 3] Extracting.
0.292 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (*.f64 1/2 (+.f64 x y))
0.295 * * [simplify]: iteration  0 :  8  enodes  (cost  7 )
0.295 * * [simplify]: iteration  1 :  8  enodes  (cost  7 )
0.295 * [simplify]: Simplified to:
   (*.f64 1/2 (+.f64 x y))
0.626 * [regime-testing]: End program error score: 0
0.642 * [regime-testing]: Target error score: 0