12.088 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.024 * * * [progress]: [2/2] Setting up program.
0.027 * [progress]: [Phase 2 of 3] Improving.
0.027 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.027 * * [simplify]: iteration 0: 5 enodes
0.028 * * [simplify]: iteration 1: 11 enodes
0.030 * * [simplify]: iteration 2: 18 enodes
0.032 * * [simplify]: iteration 3: 35 enodes
0.052 * * [simplify]: iteration 4: 67 enodes
0.085 * * [simplify]: iteration 5: 160 enodes
0.136 * * [simplify]: iteration 6: 366 enodes
0.351 * * [simplify]: iteration 7: 901 enodes
1.828 * * [simplify]: iteration 8: 3866 enodes
3.512 * * [simplify]: iteration complete: 5000 enodes
3.512 * * [simplify]: Extracting #0: cost 1 inf + 0
3.513 * * [simplify]: Extracting #1: cost 251 inf + 0
3.516 * * [simplify]: Extracting #2: cost 671 inf + 485
3.522 * * [simplify]: Extracting #3: cost 153 inf + 5304
3.528 * * [simplify]: Extracting #4: cost 0 inf + 6977
3.532 * [simplify]: Simplified to:
  (- (* a a) (* b b))
3.532 * * [progress]: iteration 1 / 4
3.533 * * * [progress]: picking best candidate
3.535 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
3.535 * * * [progress]: localizing error
3.541 * * * [progress]: generating rewritten candidates
3.541 * * * [progress]: generating series expansions
3.541 * * * [progress]: simplifying candidates
3.541 * [simplify]: Simplifying:
  
3.541 * * [simplify]: iteration 0: 0 enodes
3.541 * * [simplify]: iteration complete: 0 enodes
3.541 * * [simplify]: Extracting #0: cost 0 inf + 0
3.541 * [simplify]: Simplified to:
  
3.541 * * * [progress]: adding candidates to table
3.542 * [progress]: [Phase 3 of 3] Extracting.
3.544 * [simplify]: Simplifying:
  (- (* a a) (* b b))
3.544 * * [simplify]: iteration 0: 5 enodes
3.544 * * [simplify]: iteration complete: 5 enodes
3.544 * * [simplify]: Extracting #0: cost 1 inf + 0
3.544 * * [simplify]: Extracting #1: cost 3 inf + 0
3.544 * * [simplify]: Extracting #2: cost 5 inf + 0
3.544 * * [simplify]: Extracting #3: cost 2 inf + 5
3.544 * * [simplify]: Extracting #4: cost 0 inf + 15
3.544 * [simplify]: Simplified to:
  (- (* a a) (* b b))
4.693 * [regime-testing]: Baseline error score: 0.007000875109388674
4.696 * [regime-testing]: Oracle error score: 0.007000875109388674
4.696 * [regime-testing]: End program error score: 0.007000875109388674
4.764 * [regime-testing]: Target error score: 0.0008751093886735842