1552126017.950 * [progress]: [Phase 1 of 3] Setting up.
1552126017.950 * * * [progress]: [1/2] Preparing points
1552126017.976 * * * [progress]: [2/2] Setting up program.
1552126017.978 * [progress]: [Phase 2 of 3] Improving.
1552126017.978 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (a b) (- (* a a) (* b b)))>
1552126017.978 * [simplify]: Simplifying (- (* a a) (* b b))
1552126017.978 * * [simplify]: iters left: 4 (5 enodes)
1552126017.980 * * [simplify]: iters left: 3 (21 enodes)
1552126017.984 * * [simplify]: iters left: 2 (34 enodes)
1552126017.989 * * [simplify]: iters left: 1 (53 enodes)
1552126018.000 * * [simplify]: Extracting #0: cost 1 inf + 0
1552126018.000 * * [simplify]: Extracting #1: cost 14 inf + 0
1552126018.000 * * [simplify]: Extracting #2: cost 25 inf + 165
1552126018.001 * * [simplify]: Extracting #3: cost 9 inf + 1168
1552126018.002 * * [simplify]: Extracting #4: cost 1 inf + 1903
1552126018.003 * * [simplify]: Extracting #5: cost 0 inf + 1970
1552126018.004 * [simplify]: Simplified to (- (* a a) (* b b))
1552126018.004 * [simplify]: Simplified (2) to (λ (a b) (- (* a a) (* b b)))
1552126018.009 * * [progress]: iteration 1 / 4
1552126018.009 * * * [progress]: picking best candidate
1552126018.011 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
1552126018.011 * * * [progress]: localizing error
1552126018.020 * * * [progress]: generating rewritten candidates
1552126018.020 * * * [progress]: generating series expansions
1552126018.020 * * * [progress]: simplifying candidates
1552126018.020 * * * [progress]: adding candidates to table
1552126018.020 * [progress]: [Phase 3 of 3] Extracting.
1552126018.030 * [simplify]: Simplifying (- (* a a) (* b b))
1552126018.030 * * [simplify]: iters left: 4 (5 enodes)
1552126018.030 * * [simplify]: Extracting #0: cost 1 inf + 0
1552126018.030 * * [simplify]: Extracting #1: cost 3 inf + 0
1552126018.030 * * [simplify]: Extracting #2: cost 5 inf + 0
1552126018.030 * * [simplify]: Extracting #3: cost 2 inf + 43
1552126018.030 * * [simplify]: Extracting #4: cost 0 inf + 206
1552126018.030 * [simplify]: Simplified to (- (* a a) (* b b))
1552126019.221 * [regime-testing]: Baseline error score: 0.007250906363295412
1552126019.222 * [regime-testing]: Oracle error score: 0.007250906363295412
1552126019.222 * [regime-testing]: End program error score: 0.007250906363295412
1552126019.284 * [regime-testing]: Target error score: 0.001375171896487061