12.774 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.042 * * * [progress]: [2/2] Setting up program.
0.046 * [progress]: [Phase 2 of 3] Improving.
0.046 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (a b) (- (* a a) (* b b)))>
0.046 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.046 * * [simplify]: iteration 1: (5 enodes)
0.048 * * [simplify]: iteration 2: (10 enodes)
0.050 * * [simplify]: iteration 3: (17 enodes)
0.054 * * [simplify]: iteration 4: (32 enodes)
0.063 * * [simplify]: iteration 5: (57 enodes)
0.081 * * [simplify]: iteration 6: (128 enodes)
0.122 * * [simplify]: iteration 7: (201 enodes)
0.184 * * [simplify]: iteration 8: (367 enodes)
0.518 * * [simplify]: iteration 9: (1172 enodes)
2.477 * * [simplify]: Extracting #0: cost 1 inf + 0
2.478 * * [simplify]: Extracting #1: cost 299 inf + 0
2.490 * * [simplify]: Extracting #2: cost 1086 inf + 1
2.503 * * [simplify]: Extracting #3: cost 919 inf + 26265
2.557 * * [simplify]: Extracting #4: cost 251 inf + 172788
2.635 * * [simplify]: Extracting #5: cost 3 inf + 236504
2.712 * * [simplify]: Extracting #6: cost 0 inf + 237710
2.769 * [simplify]: Simplified to:
  (* (- a b) (+ b a))
2.771 * * [progress]: iteration 1 / 4
2.771 * * * [progress]: picking best candidate
2.773 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
2.773 * * * [progress]: localizing error
2.783 * * * [progress]: generating rewritten candidates
2.783 * * * [progress]: generating series expansions
2.783 * * * [progress]: simplifying candidates
2.783 * [simplify]: Simplifying:
  
2.783 * * [simplify]: iteration 1: (0 enodes)
2.783 * * [simplify]: Extracting #0: cost 0 inf + 0
2.783 * [simplify]: Simplified to:
  
2.783 * * * [progress]: adding candidates to table
2.784 * [progress]: [Phase 3 of 3] Extracting.
2.786 * [simplify]: Simplifying:
  (- (* a a) (* b b))
2.786 * * [simplify]: iteration 1: (5 enodes)
2.786 * * [simplify]: Extracting #0: cost 1 inf + 0
2.786 * * [simplify]: Extracting #1: cost 3 inf + 0
2.786 * * [simplify]: Extracting #2: cost 5 inf + 0
2.786 * * [simplify]: Extracting #3: cost 2 inf + 43
2.786 * * [simplify]: Extracting #4: cost 0 inf + 206
2.786 * [simplify]: Simplified to:
  (- (* a a) (* b b))
4.237 * [regime-testing]: Baseline error score: 0.006875859482435304
4.240 * [regime-testing]: Oracle error score: 0.006875859482435304
4.240 * [regime-testing]: End program error score: 0.006875859482435304
4.280 * [regime-testing]: Target error score: 0.0007500937617202151