19.574 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.036 * * * [progress]: [2/2] Setting up program.
0.041 * [progress]: [Phase 2 of 3] Improving.
0.042 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.042 * * [simplify]: iteration 0: 5 enodes
0.043 * * [simplify]: iteration 1: 10 enodes
0.045 * * [simplify]: iteration 2: 17 enodes
0.049 * * [simplify]: iteration 3: 32 enodes
0.057 * * [simplify]: iteration 4: 58 enodes
0.077 * * [simplify]: iteration 5: 129 enodes
0.118 * * [simplify]: iteration 6: 281 enodes
0.524 * * [simplify]: iteration 7: 703 enodes
1.434 * * [simplify]: iteration 8: 3184 enodes
2.658 * * [simplify]: iteration complete: 5000 enodes
2.658 * * [simplify]: Extracting #0: cost 1 inf + 0
2.659 * * [simplify]: Extracting #1: cost 139 inf + 0
2.663 * * [simplify]: Extracting #2: cost 1135 inf + 42
2.672 * * [simplify]: Extracting #3: cost 1018 inf + 18699
2.703 * * [simplify]: Extracting #4: cost 149 inf + 129695
2.745 * * [simplify]: Extracting #5: cost 1 inf + 155685
2.796 * * [simplify]: Extracting #6: cost 0 inf + 155807
2.857 * [simplify]: Simplified to:
  (- (* a a) (* b b))
2.858 * * [progress]: iteration 1 / 4
2.858 * * * [progress]: picking best candidate
2.861 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
2.861 * * * [progress]: localizing error
2.868 * * * [progress]: generating rewritten candidates
2.868 * * * [progress]: generating series expansions
2.868 * * * [progress]: simplifying candidates
2.869 * [simplify]: Simplifying:
  
2.869 * * [simplify]: iteration 0: 0 enodes
2.869 * * [simplify]: iteration complete: 0 enodes
2.869 * * [simplify]: Extracting #0: cost 0 inf + 0
2.869 * [simplify]: Simplified to:
  
2.869 * * * [progress]: adding candidates to table
2.869 * [progress]: [Phase 3 of 3] Extracting.
2.873 * [simplify]: Simplifying:
  (- (* a a) (* b b))
2.873 * * [simplify]: iteration 0: 5 enodes
2.873 * * [simplify]: iteration complete: 5 enodes
2.873 * * [simplify]: Extracting #0: cost 1 inf + 0
2.873 * * [simplify]: Extracting #1: cost 3 inf + 0
2.873 * * [simplify]: Extracting #2: cost 5 inf + 0
2.873 * * [simplify]: Extracting #3: cost 2 inf + 43
2.873 * * [simplify]: Extracting #4: cost 0 inf + 206
2.873 * [simplify]: Simplified to:
  (- (* a a) (* b b))
4.135 * [regime-testing]: Baseline error score: 0.007529543529253141
4.152 * [regime-testing]: Oracle error score: 0.007529543529253141
4.153 * [regime-testing]: End program error score: 0.007529543529253141
4.280 * [regime-testing]: Target error score: 0.00037504688086010754