11.807 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.051 * * * [progress]: [2/2] Setting up program.
0.054 * [progress]: [Phase 2 of 3] Improving.
0.054 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.474 * * [progress]: iteration 1 / 4
2.474 * * * [progress]: picking best candidate
2.476 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.476 * * * [progress]: localizing error
2.482 * * * [progress]: generating rewritten candidates
2.482 * * * [progress]: generating series expansions
2.482 * * * [progress]: simplifying candidates
2.482 * [simplify]: Simplifying:
  
2.495 * * * [progress]: adding candidates to table
2.496 * [progress]: [Phase 3 of 3] Extracting.
2.500 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
7.492 * [regime-testing]: Baseline error score: 0.0024557889973465087
7.494 * [regime-testing]: Oracle error score: 0.0024557889973465087
7.494 * [regime-testing]: End program error score: 0.0024557889973465087