71.090 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.022 * * * [progress]: [2/2] Setting up program.
0.024 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying:
  (- (+ x y) x)
0.412 * * [progress]: iteration 1 / 4
0.412 * * * [progress]: picking best candidate
0.413 * * * * [pick]: Picked  #<alt (λ (x y) y)>
0.413 * * * [progress]: localizing error
0.414 * * * [progress]: generating rewritten candidates
0.414 * * * [progress]: generating series expansions
0.414 * * * [progress]: simplifying candidates
0.414 * [simplify]: Simplifying:
  
0.429 * * * [progress]: adding candidates to table
0.430 * [progress]: [Phase 3 of 3] Extracting.
0.431 * [simplify]: Simplifying:
  y
1.684 * [regime-testing]: Baseline error score: 0
1.686 * [regime-testing]: Oracle error score: 0
1.687 * [regime-testing]: End program error score: 0
1.721 * [regime-testing]: Target error score: 0