13.442 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.041 * * * [progress]: [2/2] Setting up program.
0.045 * [progress]: [Phase 2 of 3] Improving.
0.046 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.046 * * [simplify]: Extracting # 0 : cost  0
0.046 * * [simplify]: Extracting # 1 : cost  0
0.046 * * [simplify]: Extracting # 2 : cost  0
0.046 * * [simplify]: Extracting # 3 : cost  0
0.046 * * [simplify]: Extracting # 4 : cost  0
0.046 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.049 * * [simplify]: Extracting # 0 : cost  0
0.049 * * [simplify]: Extracting # 1 : cost  0
0.049 * * [simplify]: Extracting # 2 : cost  0
0.049 * * [simplify]: Extracting # 3 : cost  0
0.049 * * [simplify]: Extracting # 4 : cost  0
0.049 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.055 * * [simplify]: Extracting # 0 : cost  0
0.055 * * [simplify]: Extracting # 1 : cost  0
0.055 * * [simplify]: Extracting # 2 : cost  0
0.055 * * [simplify]: Extracting # 3 : cost  0
0.055 * * [simplify]: Extracting # 4 : cost  0
0.056 * * [simplify]: iteration  2 :  30  enodes  (cost  7 )
0.068 * * [simplify]: Extracting # 0 : cost  0
0.068 * * [simplify]: Extracting # 1 : cost  0
0.069 * * [simplify]: Extracting # 2 : cost  0
0.069 * * [simplify]: Extracting # 3 : cost  0
0.069 * * [simplify]: Extracting # 4 : cost  0
0.069 * * [simplify]: iteration  3 :  74  enodes  (cost  7 )
0.115 * * [simplify]: Extracting # 0 : cost  0
0.116 * * [simplify]: Extracting # 1 : cost  0
0.116 * * [simplify]: Extracting # 2 : cost  0
0.116 * * [simplify]: Extracting # 3 : cost  0
0.116 * * [simplify]: Extracting # 4 : cost  0
0.116 * * [simplify]: iteration  4 :  213  enodes  (cost  7 )
0.240 * * [simplify]: Extracting # 0 : cost  0
0.241 * * [simplify]: Extracting # 1 : cost  0
0.242 * * [simplify]: Extracting # 2 : cost  0
0.242 * * [simplify]: Extracting # 3 : cost  0
0.243 * * [simplify]: Extracting # 4 : cost  0
0.243 * * [simplify]: iteration  5 :  658  enodes  (cost  7 )
1.149 * * [simplify]: Extracting # 0 : cost  0
1.152 * * [simplify]: Extracting # 1 : cost  0
1.155 * * [simplify]: Extracting # 2 : cost  0
1.158 * * [simplify]: Extracting # 3 : cost  0
1.161 * * [simplify]: Extracting # 4 : cost  0
1.163 * * [simplify]: iteration  6 :  3171  enodes  (cost  7 )
3.043 * * [simplify]: Extracting # 0 : cost  0
3.053 * * [simplify]: Extracting # 1 : cost  0
3.062 * * [simplify]: Extracting # 2 : cost  0
3.072 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
3.072 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
3.073 * * [progress]: iteration 1 / 4
3.073 * * * [progress]: picking best candidate
3.076 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
3.076 * * * [progress]: localizing error
3.098 * * * [progress]: generating rewritten candidates
3.098 * * * [progress]: generating series expansions
3.098 * * * [progress]: simplifying candidates
3.098 * [simplify]: Simplifying:
  
3.098 * * [simplify]: Extracting # 0 : cost  0
3.098 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
3.098 * * [simplify]: Extracting # 0 : cost  0
3.098 * * [simplify]: iteration done:  0  enodes  (cost  0 )
3.098 * [simplify]: Simplified to:
  
3.098 * * * [progress]: adding candidates to table
3.099 * [progress]: [Phase 3 of 3] Extracting.
3.102 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
3.102 * * [simplify]: Extracting # 0 : cost  0
3.102 * * [simplify]: Extracting # 1 : cost  0
3.102 * * [simplify]: Extracting # 2 : cost  0
3.102 * * [simplify]: Extracting # 3 : cost  0
3.102 * * [simplify]: Extracting # 4 : cost  0
3.102 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
3.103 * * [simplify]: Extracting # 0 : cost  0
3.103 * * [simplify]: iteration done:  6  enodes  (cost  7 )
3.103 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
5.178 * [regime-testing]: Baseline error score: 0.0029484888736993568
5.180 * [regime-testing]: Oracle error score: 0.0029484888736993568
5.180 * [regime-testing]: End program error score: 0.0029484888736993568