0.002 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.032 * [progress]: [Phase 2 of 3] Improving.
0.032 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (a b) (- (* a a) (* b b)))>
0.032 * [simplify]: Simplifying (- (* a a) (* b b))
0.032 * * [simplify]: iteration 1: (5 enodes)
0.034 * * [simplify]: iteration 2: (21 enodes)
0.039 * * [simplify]: iteration 3: (34 enodes)
0.046 * * [simplify]: iteration 4: (53 enodes)
0.060 * * [simplify]: iteration 5: (100 enodes)
0.096 * * [simplify]: iteration 6: (205 enodes)
0.149 * * [simplify]: iteration 7: (343 enodes)
0.270 * * [simplify]: iteration 8: (604 enodes)
0.810 * * [simplify]: Extracting #0: cost 1 inf + 0
0.810 * * [simplify]: Extracting #1: cost 77 inf + 0
0.812 * * [simplify]: Extracting #2: cost 265 inf + 535
0.818 * * [simplify]: Extracting #3: cost 118 inf + 21092
0.832 * * [simplify]: Extracting #4: cost 1 inf + 43253
0.849 * * [simplify]: Extracting #5: cost 0 inf + 42925
0.863 * * [simplify]: Extracting #6: cost 0 inf + 42910
0.878 * [simplify]: Simplified to (- (* a a) (* b b))
0.878 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (a b) (- (* a a) (* b b)))>
0.878 * [simplify]: Simplified (2) to (λ (a b) (- (* a a) (* b b)))
0.880 * * [progress]: iteration 1 / 4
0.880 * * * [progress]: picking best candidate
0.882 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.882 * * * [progress]: localizing error
0.890 * * * [progress]: generating rewritten candidates
0.890 * * * [progress]: generating series expansions
0.890 * * * [progress]: simplifying candidates
0.890 * [simplify]: Simplifying 
0.890 * * [simplify]: iteration 1: (0 enodes)
0.890 * * [simplify]: Extracting #0: cost 0 inf + 0
0.890 * [simplify]: Simplified to 
0.891 * * * [progress]: adding candidates to table
0.891 * [progress]: [Phase 3 of 3] Extracting.
0.893 * [simplify]: Simplifying (- (* a a) (* b b))
0.893 * * [simplify]: iteration 1: (5 enodes)
0.893 * * [simplify]: Extracting #0: cost 1 inf + 0
0.893 * * [simplify]: Extracting #1: cost 3 inf + 0
0.893 * * [simplify]: Extracting #2: cost 5 inf + 0
0.893 * * [simplify]: Extracting #3: cost 2 inf + 43
0.893 * * [simplify]: Extracting #4: cost 0 inf + 206
0.893 * [simplify]: Simplified to (- (* a a) (* b b))
2.095 * [regime-testing]: Baseline error score: 0.00845653909110823
2.097 * [regime-testing]: Oracle error score: 0.00845653909110823
2.097 * [regime-testing]: End program error score: 0.00845653909110823
2.134 * [regime-testing]: Target error score: 0.00037504688086010754