21.559 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.108 * * * [progress]: [2/2] Setting up program.
0.109 * [progress]: [Phase 2 of 3] Improving.
0.109 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/.f64 (-.f64 x y) (*.f64 (*.f64 x 2) y))
0.286 * * [simplify]: iteration  0 :  5238  enodes  (cost  10 )
0.287 * [simplify]: Simplified to:
   (+.f64 (/.f64 1/2 y) (/.f64 -1/2 x))
0.290 * * [progress]: iteration 1 / 4
0.290 * * * [progress]: picking best candidate
0.294 * * * * [pick]: Picked  #<alt (λ (x y) (+.f64 (/.f64 1/2 y) (/.f64 -1/2 x)))>
0.294 * * * [progress]: localizing error
0.299 * * * [progress]: generating rewritten candidates
0.299 * * * [progress]: generating series expansions
0.299 * * * [progress]: simplifying candidates
0.299 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.311 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.311 * [simplify]: Simplified to:
   
0.311 * * * [progress]: adding candidates to table
0.311 * [progress]: [Phase 3 of 3] Extracting.
0.312 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+.f64 (/.f64 1/2 y) (/.f64 -1/2 x))
0.315 * * [simplify]: iteration  0 :  9  enodes  (cost  10 )
0.315 * * [simplify]: iteration  1 :  9  enodes  (cost  10 )
0.315 * [simplify]: Simplified to:
   (+.f64 (/.f64 1/2 y) (/.f64 -1/2 x))
0.707 * [regime-testing]: End program error score: 0.013865094461258724
0.725 * [regime-testing]: Target error score: 0.013865094461258724