58.632 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.027 * [progress]: [Phase 2 of 3] Improving.
0.027 * [simplify]: Simplifying:
  (- (+ x y) x)
0.464 * * [progress]: iteration 1 / 4
0.464 * * * [progress]: picking best candidate
0.473 * * * * [pick]: Picked  #<alt (λ (x y) y)>
0.473 * * * [progress]: localizing error
0.474 * * * [progress]: generating rewritten candidates
0.474 * * * [progress]: generating series expansions
0.474 * * * [progress]: simplifying candidates
0.474 * [simplify]: Simplifying:
  
0.491 * * * [progress]: adding candidates to table
0.491 * [progress]: [Phase 3 of 3] Extracting.
0.493 * [simplify]: Simplifying:
  y
1.291 * [regime-testing]: Baseline error score: 0
1.293 * [regime-testing]: Oracle error score: 0
1.293 * [regime-testing]: End program error score: 0
1.316 * [regime-testing]: Target error score: 0