13.017 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.063 * * * [progress]: [2/2] Setting up program.
0.066 * [progress]: [Phase 2 of 3] Improving.
0.066 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.066 * * [simplify]: Extracting # 0 : cost  0
0.066 * * [simplify]: Extracting # 1 : cost  0
0.066 * * [simplify]: Extracting # 2 : cost  0
0.066 * * [simplify]: Extracting # 3 : cost  0
0.067 * * [simplify]: Extracting # 4 : cost  0
0.067 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.068 * * [simplify]: Extracting # 0 : cost  0
0.068 * * [simplify]: Extracting # 1 : cost  0
0.068 * * [simplify]: Extracting # 2 : cost  0
0.068 * * [simplify]: Extracting # 3 : cost  0
0.068 * * [simplify]: Extracting # 4 : cost  0
0.068 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.071 * * [simplify]: Extracting # 0 : cost  0
0.071 * * [simplify]: Extracting # 1 : cost  0
0.071 * * [simplify]: Extracting # 2 : cost  0
0.071 * * [simplify]: Extracting # 3 : cost  0
0.071 * * [simplify]: Extracting # 4 : cost  0
0.071 * * [simplify]: iteration  2 :  30  enodes  (cost  7 )
0.078 * * [simplify]: Extracting # 0 : cost  0
0.078 * * [simplify]: Extracting # 1 : cost  0
0.078 * * [simplify]: Extracting # 2 : cost  0
0.078 * * [simplify]: Extracting # 3 : cost  0
0.078 * * [simplify]: Extracting # 4 : cost  0
0.078 * * [simplify]: iteration  3 :  74  enodes  (cost  7 )
0.112 * * [simplify]: Extracting # 0 : cost  0
0.112 * * [simplify]: Extracting # 1 : cost  0
0.113 * * [simplify]: Extracting # 2 : cost  0
0.113 * * [simplify]: Extracting # 3 : cost  0
0.114 * * [simplify]: Extracting # 4 : cost  0
0.114 * * [simplify]: iteration  4 :  213  enodes  (cost  7 )
0.237 * * [simplify]: Extracting # 0 : cost  0
0.238 * * [simplify]: Extracting # 1 : cost  0
0.239 * * [simplify]: Extracting # 2 : cost  0
0.239 * * [simplify]: Extracting # 3 : cost  0
0.240 * * [simplify]: Extracting # 4 : cost  0
0.240 * * [simplify]: iteration  5 :  658  enodes  (cost  7 )
1.076 * * [simplify]: Extracting # 0 : cost  0
1.079 * * [simplify]: Extracting # 1 : cost  0
1.082 * * [simplify]: Extracting # 2 : cost  0
1.085 * * [simplify]: Extracting # 3 : cost  0
1.087 * * [simplify]: Extracting # 4 : cost  0
1.090 * * [simplify]: iteration  6 :  3171  enodes  (cost  7 )
2.752 * * [simplify]: Extracting # 0 : cost  0
2.767 * * [simplify]: Extracting # 1 : cost  0
2.773 * * [simplify]: Extracting # 2 : cost  0
2.778 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.778 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.778 * * [progress]: iteration 1 / 4
2.778 * * * [progress]: picking best candidate
2.780 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.780 * * * [progress]: localizing error
2.787 * * * [progress]: generating rewritten candidates
2.787 * * * [progress]: generating series expansions
2.787 * * * [progress]: simplifying candidates
2.787 * [simplify]: Simplifying:
  
2.787 * * [simplify]: Extracting # 0 : cost  0
2.787 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
2.787 * * [simplify]: Extracting # 0 : cost  0
2.787 * * [simplify]: iteration done:  0  enodes  (cost  0 )
2.787 * [simplify]: Simplified to:
  
2.787 * * * [progress]: adding candidates to table
2.787 * [progress]: [Phase 3 of 3] Extracting.
2.789 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.789 * * [simplify]: Extracting # 0 : cost  0
2.789 * * [simplify]: Extracting # 1 : cost  0
2.789 * * [simplify]: Extracting # 2 : cost  0
2.789 * * [simplify]: Extracting # 3 : cost  0
2.789 * * [simplify]: Extracting # 4 : cost  0
2.789 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
2.790 * * [simplify]: Extracting # 0 : cost  0
2.790 * * [simplify]: iteration done:  6  enodes  (cost  7 )
2.790 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
4.873 * [regime-testing]: Baseline error score: 0.0029484888736993568
4.877 * [regime-testing]: Oracle error score: 0.0029484888736993568
4.877 * [regime-testing]: End program error score: 0.0029484888736993568