16.293 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [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:
  (- (* a a) (* b b))
1.135 * * [progress]: iteration 1 / 4
1.135 * * * [progress]: picking best candidate
1.137 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
1.137 * * * [progress]: localizing error
1.145 * * * [progress]: generating rewritten candidates
1.145 * * * [progress]: generating series expansions
1.145 * * * [progress]: simplifying candidates
1.145 * [simplify]: Simplifying:
  
1.161 * * * [progress]: adding candidates to table
1.162 * [progress]: [Phase 3 of 3] Extracting.
1.164 * [simplify]: Simplifying:
  (- (* a a) (* b b))
3.474 * [regime-testing]: Baseline error score: 0.005875734466808351
3.476 * [regime-testing]: Oracle error score: 0.005875734466808351
3.476 * [regime-testing]: End program error score: 0.005875734466808351
3.505 * [regime-testing]: Target error score: 0.0007500937617202151