16.864 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.039 * * * [progress]: [2/2] Setting up program.
0.043 * [progress]: [Phase 2 of 3] Improving.
0.043 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.043 * * [simplify]: iteration 0: 6 enodes
0.045 * * [simplify]: iteration 1: 14 enodes
0.047 * * [simplify]: iteration 2: 29 enodes
0.053 * * [simplify]: iteration 3: 69 enodes
0.077 * * [simplify]: iteration 4: 194 enodes
0.172 * * [simplify]: iteration 5: 613 enodes
0.921 * * [simplify]: iteration 6: 2795 enodes
1.962 * * [simplify]: iteration complete: 5038 enodes
1.962 * * [simplify]: Extracting #0: cost 1 inf + 0
1.962 * * [simplify]: Extracting #1: cost 63 inf + 0
1.963 * * [simplify]: Extracting #2: cost 422 inf + 0
1.972 * * [simplify]: Extracting #3: cost 1163 inf + 1143
1.978 * * [simplify]: Extracting #4: cost 1490 inf + 2992
2.004 * * [simplify]: Extracting #5: cost 1231 inf + 118365
2.069 * * [simplify]: Extracting #6: cost 589 inf + 577721
2.185 * * [simplify]: Extracting #7: cost 104 inf + 966547
2.356 * * [simplify]: Extracting #8: cost 0 inf + 1035009
2.519 * * [simplify]: Extracting #9: cost 0 inf + 1022372
2.715 * * [simplify]: Extracting #10: cost 0 inf + 1022001
2.837 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.838 * * [progress]: iteration 1 / 4
2.838 * * * [progress]: picking best candidate
2.842 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.842 * * * [progress]: localizing error
2.850 * * * [progress]: generating rewritten candidates
2.850 * * * [progress]: generating series expansions
2.850 * * * [progress]: simplifying candidates
2.850 * [simplify]: Simplifying:
  
2.850 * * [simplify]: iteration 0: 0 enodes
2.850 * * [simplify]: iteration complete: 0 enodes
2.850 * * [simplify]: Extracting #0: cost 0 inf + 0
2.850 * [simplify]: Simplified to:
  
2.850 * * * [progress]: adding candidates to table
2.851 * [progress]: [Phase 3 of 3] Extracting.
2.854 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.854 * * [simplify]: iteration 0: 6 enodes
2.855 * * [simplify]: iteration complete: 6 enodes
2.855 * * [simplify]: Extracting #0: cost 1 inf + 0
2.855 * * [simplify]: Extracting #1: cost 3 inf + 0
2.855 * * [simplify]: Extracting #2: cost 6 inf + 0
2.855 * * [simplify]: Extracting #3: cost 2 inf + 215
2.855 * * [simplify]: Extracting #4: cost 0 inf + 890
2.855 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
5.072 * [regime-testing]: Baseline error score: 0.0015001875234404302
5.082 * [regime-testing]: Oracle error score: 0.0015001875234404302
5.083 * [regime-testing]: End program error score: 0.0015001875234404302