0.004 * [progress]: [Phase 1 of 3] Setting up.
0.005 * * * [progress]: [1/2] Preparing points
0.148 * * * [progress]: [2/2] Setting up program.
0.155 * [progress]: [Phase 2 of 3] Improving.
0.156 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (x y) (- (pow x 4) (pow y 4)))>
0.158 * [simplify]: Simplifying (- (pow x 4) (pow y 4))
0.159 * * [simplify]: iteration 1: (6 enodes)
0.168 * * [simplify]: iteration 2: (26 enodes)
0.213 * * [simplify]: iteration 3: (53 enodes)
0.223 * * [simplify]: iteration 4: (90 enodes)
0.239 * * [simplify]: iteration 5: (148 enodes)
0.277 * * [simplify]: iteration 6: (285 enodes)
0.466 * * [simplify]: iteration 7: (878 enodes)
1.421 * * [simplify]: Extracting #0: cost 1 inf + 0
1.422 * * [simplify]: Extracting #1: cost 110 inf + 0
1.424 * * [simplify]: Extracting #2: cost 422 inf + 84
1.440 * * [simplify]: Extracting #3: cost 243 inf + 33094
1.500 * * [simplify]: Extracting #4: cost 24 inf + 82899
1.555 * * [simplify]: Extracting #5: cost 7 inf + 86859
1.593 * * [simplify]: Extracting #6: cost 0 inf + 89216
1.637 * [simplify]: Simplified to (- (* (* x x) (* x x)) (* (* y y) (* y y)))
1.650 * * [progress]: iteration 1 / 4
1.651 * * * [progress]: picking best candidate
1.656 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4) (pow y 4)))>
1.656 * * * [progress]: localizing error
1.679 * * * [progress]: generating rewritten candidates
1.681 * * * [progress]: generating series expansions
1.681 * * * [progress]: simplifying candidates
1.681 * [simplify]: Simplifying 
1.681 * * [simplify]: iteration 1: (0 enodes)
1.681 * * [simplify]: Extracting #0: cost 0 inf + 0
1.681 * [simplify]: Simplified to 
1.681 * * * [progress]: adding candidates to table
1.682 * [progress]: [Phase 3 of 3] Extracting.
1.688 * [simplify]: Simplifying (- (pow x 4) (pow y 4))
1.688 * * [simplify]: iteration 1: (6 enodes)
1.688 * * [simplify]: Extracting #0: cost 1 inf + 0
1.689 * * [simplify]: Extracting #1: cost 3 inf + 0
1.689 * * [simplify]: Extracting #2: cost 6 inf + 0
1.689 * * [simplify]: Extracting #3: cost 2 inf + 215
1.689 * * [simplify]: Extracting #4: cost 0 inf + 890
1.689 * [simplify]: Simplified to (- (pow x 4) (pow y 4))
4.792 * [regime-testing]: Baseline error score: 0.0032504063007875983
4.796 * [regime-testing]: Oracle error score: 0.0032504063007875983
4.796 * [regime-testing]: End program error score: 0.0032504063007875983