1553860600.885 * [progress]: [Phase 1 of 3] Setting up.
1553860600.885 * * * [progress]: [1/2] Preparing points
1553860600.912 * * * [progress]: [2/2] Setting up program.
1553860600.916 * [progress]: [Phase 2 of 3] Improving.
1553860600.916 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (a b) (- (* a a) (* b b)))>
1553860600.917 * [simplify]: Simplifying (- (* a a) (* b b))
1553860600.917 * * [simplify]: iters left: 4 (5 enodes)
1553860600.919 * * [simplify]: iters left: 3 (21 enodes)
1553860600.926 * * [simplify]: iters left: 2 (34 enodes)
1553860600.936 * * [simplify]: iters left: 1 (53 enodes)
1553860600.965 * * [simplify]: Extracting #0: cost 1 inf + 0
1553860600.965 * * [simplify]: Extracting #1: cost 14 inf + 0
1553860600.965 * * [simplify]: Extracting #2: cost 25 inf + 165
1553860600.965 * * [simplify]: Extracting #3: cost 9 inf + 1168
1553860600.966 * * [simplify]: Extracting #4: cost 1 inf + 1903
1553860600.966 * * [simplify]: Extracting #5: cost 0 inf + 1970
1553860600.967 * [simplify]: Simplified to (- (* a a) (* b b))
1553860600.967 * [simplify]: Simplified (2) to (λ (a b) (- (* a a) (* b b)))
1553860600.970 * * [progress]: iteration 1 / 4
1553860600.970 * * * [progress]: picking best candidate
1553860600.971 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
1553860600.971 * * * [progress]: localizing error
1553860600.981 * * * [progress]: generating rewritten candidates
1553860600.981 * * * [progress]: generating series expansions
1553860600.981 * * * [progress]: simplifying candidates
1553860600.981 * * * [progress]: adding candidates to table
1553860600.981 * [progress]: [Phase 3 of 3] Extracting.
1553860600.983 * [simplify]: Simplifying (- (* a a) (* b b))
1553860600.984 * * [simplify]: iters left: 4 (5 enodes)
1553860600.984 * * [simplify]: Extracting #0: cost 1 inf + 0
1553860600.984 * * [simplify]: Extracting #1: cost 3 inf + 0
1553860600.984 * * [simplify]: Extracting #2: cost 5 inf + 0
1553860600.984 * * [simplify]: Extracting #3: cost 2 inf + 43
1553860600.984 * * [simplify]: Extracting #4: cost 0 inf + 206
1553860600.984 * [simplify]: Simplified to (- (* a a) (* b b))
1553860602.222 * [regime-testing]: Baseline error score: 0.006125765720715089
1553860602.224 * [regime-testing]: Oracle error score: 0.006125765720715089
1553860602.224 * [regime-testing]: End program error score: 0.006125765720715089
1553860602.296 * [regime-testing]: Target error score: 0.001375171896487061