26.261 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.033 * [progress]: [Phase 2 of 3] Improving.
0.033 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.033 * * [simplify]: iteration 0: 5 enodes
0.034 * * [simplify]: iteration 1: 10 enodes
0.035 * * [simplify]: iteration 2: 17 enodes
0.038 * * [simplify]: iteration 3: 32 enodes
0.043 * * [simplify]: iteration 4: 57 enodes
0.055 * * [simplify]: iteration 5: 128 enodes
0.083 * * [simplify]: iteration 6: 201 enodes
0.146 * * [simplify]: iteration 7: 367 enodes
0.402 * * [simplify]: iteration 8: 1179 enodes
2.288 * * [simplify]: iteration 9: 4084 enodes
4.496 * * [simplify]: iteration complete: 5002 enodes
4.496 * * [simplify]: Extracting #0: cost 1 inf + 0
4.496 * * [simplify]: Extracting #1: cost 166 inf + 0
4.499 * * [simplify]: Extracting #2: cost 895 inf + 2
4.507 * * [simplify]: Extracting #3: cost 702 inf + 29891
4.552 * * [simplify]: Extracting #4: cost 180 inf + 115226
4.598 * * [simplify]: Extracting #5: cost 4 inf + 156981
4.645 * * [simplify]: Extracting #6: cost 0 inf + 157867
4.692 * [simplify]: Simplified to:
  (* (- a b) (+ b a))
4.692 * * [progress]: iteration 1 / 4
4.692 * * * [progress]: picking best candidate
4.696 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
4.696 * * * [progress]: localizing error
4.702 * * * [progress]: generating rewritten candidates
4.702 * * * [progress]: generating series expansions
4.702 * * * [progress]: simplifying candidates
4.702 * [simplify]: Simplifying:
  
4.702 * * [simplify]: iteration 0: 0 enodes
4.702 * * [simplify]: iteration complete: 0 enodes
4.702 * * [simplify]: Extracting #0: cost 0 inf + 0
4.702 * [simplify]: Simplified to:
  
4.702 * * * [progress]: adding candidates to table
4.703 * [progress]: [Phase 3 of 3] Extracting.
4.706 * [simplify]: Simplifying:
  (- (* a a) (* b b))
4.706 * * [simplify]: iteration 0: 5 enodes
4.706 * * [simplify]: iteration complete: 5 enodes
4.706 * * [simplify]: Extracting #0: cost 1 inf + 0
4.706 * * [simplify]: Extracting #1: cost 3 inf + 0
4.706 * * [simplify]: Extracting #2: cost 5 inf + 0
4.706 * * [simplify]: Extracting #3: cost 2 inf + 43
4.706 * * [simplify]: Extracting #4: cost 0 inf + 206
4.706 * [simplify]: Simplified to:
  (- (* a a) (* b b))
5.872 * [regime-testing]: Baseline error score: 0.007529543529253141
5.888 * [regime-testing]: Oracle error score: 0.007529543529253141
5.888 * [regime-testing]: End program error score: 0.007529543529253141
6.033 * [regime-testing]: Target error score: 0.00037504688086010754