26.286 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.031 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.034 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.034 * * [simplify]: iteration 0: 5 enodes
0.035 * * [simplify]: iteration 1: 11 enodes
0.037 * * [simplify]: iteration 2: 18 enodes
0.040 * * [simplify]: iteration 3: 35 enodes
0.046 * * [simplify]: iteration 4: 66 enodes
0.064 * * [simplify]: iteration 5: 159 enodes
0.124 * * [simplify]: iteration 6: 286 enodes
0.264 * * [simplify]: iteration 7: 519 enodes
0.805 * * [simplify]: iteration 8: 1418 enodes
7.031 * * [simplify]: iteration 9: 4794 enodes
8.322 * * [simplify]: iteration complete: 5000 enodes
8.322 * * [simplify]: Extracting #0: cost 1 inf + 0
8.323 * * [simplify]: Extracting #1: cost 191 inf + 0
8.327 * * [simplify]: Extracting #2: cost 574 inf + 3326
8.359 * * [simplify]: Extracting #3: cost 140 inf + 78086
8.412 * * [simplify]: Extracting #4: cost 3 inf + 107323
8.455 * * [simplify]: Extracting #5: cost 0 inf + 106470
8.511 * [simplify]: Simplified to:
  (- (* a a) (* b b))
8.512 * * [progress]: iteration 1 / 4
8.512 * * * [progress]: picking best candidate
8.515 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
8.515 * * * [progress]: localizing error
8.521 * * * [progress]: generating rewritten candidates
8.521 * * * [progress]: generating series expansions
8.521 * * * [progress]: simplifying candidates
8.521 * [simplify]: Simplifying:
  
8.521 * * [simplify]: iteration 0: 0 enodes
8.521 * * [simplify]: iteration complete: 0 enodes
8.521 * * [simplify]: Extracting #0: cost 0 inf + 0
8.521 * [simplify]: Simplified to:
  
8.521 * * * [progress]: adding candidates to table
8.522 * [progress]: [Phase 3 of 3] Extracting.
8.527 * [simplify]: Simplifying:
  (- (* a a) (* b b))
8.527 * * [simplify]: iteration 0: 5 enodes
8.527 * * [simplify]: iteration complete: 5 enodes
8.527 * * [simplify]: Extracting #0: cost 1 inf + 0
8.527 * * [simplify]: Extracting #1: cost 3 inf + 0
8.527 * * [simplify]: Extracting #2: cost 5 inf + 0
8.527 * * [simplify]: Extracting #3: cost 2 inf + 43
8.527 * * [simplify]: Extracting #4: cost 0 inf + 206
8.527 * [simplify]: Simplified to:
  (- (* a a) (* b b))
10.460 * [regime-testing]: Baseline error score: 0.007529543529253141
10.469 * [regime-testing]: Oracle error score: 0.007529543529253141
10.469 * [regime-testing]: End program error score: 0.007529543529253141
10.577 * [regime-testing]: Target error score: 0.00037504688086010754