13.263 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.024 * * * [progress]: [2/2] Setting up program.
0.028 * [progress]: [Phase 2 of 3] Improving.
0.028 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.028 * * [simplify]: iteration 0: 5 enodes
0.029 * * [simplify]: iteration 1: 11 enodes
0.030 * * [simplify]: iteration 2: 18 enodes
0.033 * * [simplify]: iteration 3: 35 enodes
0.039 * * [simplify]: iteration 4: 67 enodes
0.060 * * [simplify]: iteration 5: 160 enodes
0.100 * * [simplify]: iteration 6: 366 enodes
0.249 * * [simplify]: iteration 7: 901 enodes
1.661 * * [simplify]: iteration 8: 3866 enodes
3.488 * * [simplify]: iteration complete: 5000 enodes
3.488 * * [simplify]: Extracting #0: cost 1 inf + 0
3.489 * * [simplify]: Extracting #1: cost 251 inf + 0
3.499 * * [simplify]: Extracting #2: cost 671 inf + 8504
3.543 * * [simplify]: Extracting #3: cost 153 inf + 97580
3.603 * * [simplify]: Extracting #4: cost 0 inf + 129595
3.693 * [simplify]: Simplified to:
  (- (* a a) (* b b))
3.695 * * [progress]: iteration 1 / 4
3.695 * * * [progress]: picking best candidate
3.702 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
3.702 * * * [progress]: localizing error
3.715 * * * [progress]: generating rewritten candidates
3.715 * * * [progress]: generating series expansions
3.715 * * * [progress]: simplifying candidates
3.715 * [simplify]: Simplifying:
  
3.715 * * [simplify]: iteration 0: 0 enodes
3.715 * * [simplify]: iteration complete: 0 enodes
3.715 * * [simplify]: Extracting #0: cost 0 inf + 0
3.715 * [simplify]: Simplified to:
  
3.715 * * * [progress]: adding candidates to table
3.716 * [progress]: [Phase 3 of 3] Extracting.
3.722 * [simplify]: Simplifying:
  (- (* a a) (* b b))
3.723 * * [simplify]: iteration 0: 5 enodes
3.723 * * [simplify]: iteration complete: 5 enodes
3.723 * * [simplify]: Extracting #0: cost 1 inf + 0
3.723 * * [simplify]: Extracting #1: cost 3 inf + 0
3.723 * * [simplify]: Extracting #2: cost 5 inf + 0
3.723 * * [simplify]: Extracting #3: cost 2 inf + 43
3.723 * * [simplify]: Extracting #4: cost 0 inf + 206
3.723 * [simplify]: Simplified to:
  (- (* a a) (* b b))
4.941 * [regime-testing]: Baseline error score: 0.007529543529253141
4.952 * [regime-testing]: Oracle error score: 0.007529543529253141
4.952 * [regime-testing]: End program error score: 0.007529543529253141
5.095 * [regime-testing]: Target error score: 0.00037504688086010754