2.437 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.041 * * * [progress]: [2/2] Setting up program.
0.046 * [progress]: [Phase 2 of 3] Improving.
0.047 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.047 * * [simplify]: iteration 0: 5 enodes
0.048 * * [simplify]: iteration 1: 10 enodes
0.051 * * [simplify]: iteration 2: 17 enodes
0.055 * * [simplify]: iteration 3: 32 enodes
0.073 * * [simplify]: iteration 4: 58 enodes
0.098 * * [simplify]: iteration 5: 129 enodes
0.129 * * [simplify]: iteration 6: 281 enodes
0.234 * * [simplify]: iteration 7: 703 enodes
1.287 * * [simplify]: iteration 8: 3184 enodes
2.706 * * [simplify]: iteration complete: 5000 enodes
2.706 * * [simplify]: Extracting #0: cost 1 inf + 0
2.706 * * [simplify]: Extracting #1: cost 139 inf + 0
2.721 * * [simplify]: Extracting #2: cost 1135 inf + 3
2.728 * * [simplify]: Extracting #3: cost 1018 inf + 1047
2.737 * * [simplify]: Extracting #4: cost 149 inf + 6906
2.745 * * [simplify]: Extracting #5: cost 1 inf + 8257
2.752 * * [simplify]: Extracting #6: cost 0 inf + 8263
2.757 * [simplify]: Simplified to:
  (- (* a a) (* b b))
2.757 * * [progress]: iteration 1 / 4
2.757 * * * [progress]: picking best candidate
2.760 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
2.760 * * * [progress]: localizing error
2.766 * * * [progress]: generating rewritten candidates
2.766 * * * [progress]: generating series expansions
2.766 * * * [progress]: simplifying candidates
2.767 * [simplify]: Simplifying:
  
2.767 * * [simplify]: iteration 0: 0 enodes
2.767 * * [simplify]: iteration complete: 0 enodes
2.767 * * [simplify]: Extracting #0: cost 0 inf + 0
2.767 * [simplify]: Simplified to:
  
2.767 * * * [progress]: adding candidates to table
2.767 * [progress]: [Phase 3 of 3] Extracting.
2.769 * [simplify]: Simplifying:
  (- (* a a) (* b b))
2.769 * * [simplify]: iteration 0: 5 enodes
2.770 * * [simplify]: iteration complete: 5 enodes
2.770 * * [simplify]: Extracting #0: cost 1 inf + 0
2.770 * * [simplify]: Extracting #1: cost 3 inf + 0
2.770 * * [simplify]: Extracting #2: cost 5 inf + 0
2.770 * * [simplify]: Extracting #3: cost 2 inf + 5
2.770 * * [simplify]: Extracting #4: cost 0 inf + 15
2.770 * [simplify]: Simplified to:
  (- (* a a) (* b b))
4.175 * [regime-testing]: Baseline error score: 0.006698957682300432
4.177 * [regime-testing]: Oracle error score: 0.006698957682300432
4.177 * [regime-testing]: End program error score: 0.006698957682300432
4.236 * [regime-testing]: Target error score: 0.0008751093886735842