0.003 * [progress]: [Phase 1 of 3] Setting up.
0.005 * * * [progress]: [1/2] Preparing points
0.172 * * * [progress]: [2/2] Setting up program.
0.178 * [progress]: [Phase 2 of 3] Improving.
0.179 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (x y) (- (pow x 4) (pow y 4)))>
0.181 * [simplify]: Simplifying (- (pow x 4) (pow y 4))
0.183 * * [simplify]: iteration 1: (6 enodes)
0.193 * * [simplify]: iteration 2: (26 enodes)
0.206 * * [simplify]: iteration 3: (59 enodes)
0.224 * * [simplify]: iteration 4: (78 enodes)
0.244 * * [simplify]: iteration 5: (114 enodes)
0.305 * * [simplify]: iteration 6: (228 enodes)
0.414 * * [simplify]: iteration 7: (533 enodes)
0.843 * * [simplify]: iteration 8: (1511 enodes)
2.804 * * [simplify]: Extracting #0: cost 1 inf + 0
2.805 * * [simplify]: Extracting #1: cost 148 inf + 0
2.809 * * [simplify]: Extracting #2: cost 595 inf + 167
2.819 * * [simplify]: Extracting #3: cost 492 inf + 25923
2.877 * * [simplify]: Extracting #4: cost 76 inf + 124593
2.959 * * [simplify]: Extracting #5: cost 1 inf + 143276
3.050 * * [simplify]: Extracting #6: cost 0 inf + 143443
3.150 * [simplify]: Simplified to (- (* (* x x) (* x x)) (* (* y y) (* y y)))
3.164 * * [progress]: iteration 1 / 4
3.164 * * * [progress]: picking best candidate
3.168 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4) (pow y 4)))>
3.168 * * * [progress]: localizing error
3.181 * * * [progress]: generating rewritten candidates
3.184 * * * [progress]: generating series expansions
3.184 * * * [progress]: simplifying candidates
3.184 * [simplify]: Simplifying 
3.184 * * [simplify]: iteration 1: (0 enodes)
3.184 * * [simplify]: Extracting #0: cost 0 inf + 0
3.184 * [simplify]: Simplified to 
3.184 * * * [progress]: adding candidates to table
3.185 * [progress]: [Phase 3 of 3] Extracting.
3.188 * [simplify]: Simplifying (- (pow x 4) (pow y 4))
3.188 * * [simplify]: iteration 1: (6 enodes)
3.188 * * [simplify]: Extracting #0: cost 1 inf + 0
3.188 * * [simplify]: Extracting #1: cost 3 inf + 0
3.188 * * [simplify]: Extracting #2: cost 6 inf + 0
3.188 * * [simplify]: Extracting #3: cost 2 inf + 215
3.188 * * [simplify]: Extracting #4: cost 0 inf + 890
3.188 * [simplify]: Simplified to (- (pow x 4) (pow y 4))
5.982 * [regime-testing]: Baseline error score: 0.002790589835590369
5.984 * [regime-testing]: Oracle error score: 0.002790589835590369
5.985 * [regime-testing]: End program error score: 0.002790589835590369