14.454 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.052 * * * [progress]: [2/2] Setting up program.
0.056 * [progress]: [Phase 2 of 3] Improving.
0.057 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.057 * * [simplify]: Extracting # 0 : cost  0
0.057 * * [simplify]: Extracting # 1 : cost  0
0.057 * * [simplify]: Extracting # 2 : cost  0
0.057 * * [simplify]: Extracting # 3 : cost  0
0.057 * * [simplify]: Extracting # 4 : cost  0
0.057 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.059 * * [simplify]: Extracting # 0 : cost  0
0.059 * * [simplify]: Extracting # 1 : cost  0
0.059 * * [simplify]: Extracting # 2 : cost  0
0.059 * * [simplify]: Extracting # 3 : cost  0
0.059 * * [simplify]: Extracting # 4 : cost  0
0.060 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.065 * * [simplify]: Extracting # 0 : cost  0
0.065 * * [simplify]: Extracting # 1 : cost  0
0.065 * * [simplify]: Extracting # 2 : cost  0
0.065 * * [simplify]: Extracting # 3 : cost  0
0.065 * * [simplify]: Extracting # 4 : cost  0
0.065 * * [simplify]: iteration  2 :  29  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]: Extracting # 5 : cost  0
0.079 * * [simplify]: iteration  3 :  69  enodes  (cost  7 )
0.114 * * [simplify]: Extracting # 0 : cost  0
0.114 * * [simplify]: Extracting # 1 : cost  0
0.115 * * [simplify]: Extracting # 2 : cost  0
0.115 * * [simplify]: Extracting # 3 : cost  0
0.116 * * [simplify]: Extracting # 4 : cost  0
0.116 * * [simplify]: iteration  4 :  200  enodes  (cost  7 )
0.236 * * [simplify]: Extracting # 0 : cost  0
0.237 * * [simplify]: Extracting # 1 : cost  0
0.238 * * [simplify]: Extracting # 2 : cost  0
0.238 * * [simplify]: Extracting # 3 : cost  0
0.239 * * [simplify]: Extracting # 4 : cost  0
0.239 * * [simplify]: Extracting # 5 : cost  0
0.240 * * [simplify]: iteration  5 :  611  enodes  (cost  7 )
1.006 * * [simplify]: Extracting # 0 : cost  0
1.009 * * [simplify]: Extracting # 1 : cost  0
1.012 * * [simplify]: Extracting # 2 : cost  0
1.015 * * [simplify]: Extracting # 3 : cost  0
1.021 * * [simplify]: Extracting # 4 : cost  0
1.026 * * [simplify]: iteration  6 :  2916  enodes  (cost  7 )
2.642 * * [simplify]: Extracting # 0 : cost  0
2.659 * * [simplify]: Extracting # 1 : cost  0
2.668 * * [simplify]: Extracting # 2 : cost  0
2.677 * * [simplify]: Extracting # 3 : cost  0
2.686 * * [simplify]: Extracting # 4 : cost  0
2.695 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.695 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.696 * * [progress]: iteration 1 / 4
2.696 * * * [progress]: picking best candidate
2.698 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.699 * * * [progress]: localizing error
2.710 * * * [progress]: generating rewritten candidates
2.710 * * * [progress]: generating series expansions
2.710 * * * [progress]: simplifying candidates
2.710 * [simplify]: Simplifying:
  
2.710 * * [simplify]: Extracting # 0 : cost  0
2.710 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
2.710 * * [simplify]: Extracting # 0 : cost  0
2.710 * * [simplify]: iteration done:  0  enodes  (cost  0 )
2.710 * [simplify]: Simplified to:
  
2.710 * * * [progress]: adding candidates to table
2.711 * [progress]: [Phase 3 of 3] Extracting.
2.714 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.714 * * [simplify]: Extracting # 0 : cost  0
2.714 * * [simplify]: Extracting # 1 : cost  0
2.714 * * [simplify]: Extracting # 2 : cost  0
2.714 * * [simplify]: Extracting # 3 : cost  0
2.714 * * [simplify]: Extracting # 4 : cost  0
2.714 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
2.714 * * [simplify]: Extracting # 0 : cost  0
2.714 * * [simplify]: iteration done:  6  enodes  (cost  7 )
2.714 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
4.721 * [regime-testing]: End program error score: 0.0025003125390673834