0.002 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.125 * * * [progress]: [2/2] Setting up program.
0.129 * [progress]: [Phase 2 of 3] Improving.
0.129 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (x y) (- (pow x 4) (pow y 4)))>
0.130 * [simplify]: Simplifying (- (pow x 4) (pow y 4))
0.131 * * [simplify]: iters left: 3 (6 enodes)
0.138 * * [simplify]: iters left: 2 (26 enodes)
0.145 * * [simplify]: iters left: 1 (59 enodes)
0.155 * * [simplify]: Extracting #0: cost 1 inf + 0
0.156 * * [simplify]: Extracting #1: cost 10 inf + 0
0.156 * * [simplify]: Extracting #2: cost 22 inf + 0
0.156 * * [simplify]: Extracting #3: cost 18 inf + 4
0.156 * * [simplify]: Extracting #4: cost 4 inf + 2304
0.157 * * [simplify]: Extracting #5: cost 0 inf + 1869
0.157 * * [simplify]: Extracting #6: cost 0 inf + 1738
0.158 * [simplify]: Simplified to (- (* (* x x) (* x x)) (* (* y y) (* y y)))
0.158 * [simplify]: Simplified (2) to (λ (x y) (- (* (* x x) (* x x)) (* (* y y) (* y y))))
0.165 * * [progress]: iteration 1 / 4
0.165 * * * [progress]: picking best candidate
0.168 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4) (pow y 4)))>
0.168 * * * [progress]: localizing error
0.192 * * * [progress]: generating rewritten candidates
0.193 * * * [progress]: generating series expansions
0.193 * * * [progress]: simplifying candidates
0.193 * * * [progress]: adding candidates to table
0.194 * [progress]: [Phase 3 of 3] Extracting.
0.199 * [simplify]: Simplifying (- (pow x 4) (pow y 4))
0.199 * * [simplify]: iters left: 3 (6 enodes)
0.199 * * [simplify]: Extracting #0: cost 1 inf + 0
0.199 * * [simplify]: Extracting #1: cost 3 inf + 0
0.199 * * [simplify]: Extracting #2: cost 6 inf + 0
0.199 * * [simplify]: Extracting #3: cost 2 inf + 215
0.199 * * [simplify]: Extracting #4: cost 0 inf + 890
0.199 * [simplify]: Simplified to (- (pow x 4) (pow y 4))
2.912 * [regime-testing]: Baseline error score: 0.0025003125390673834
2.914 * [regime-testing]: Oracle error score: 0.0025003125390673834
2.914 * [regime-testing]: End program error score: 0.0025003125390673834