14.700 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.061 * * * [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
0.066 * * [simplify]: Extracting # 4 : cost  0
0.067 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.069 * * [simplify]: Extracting # 0 : cost  0
0.070 * * [simplify]: Extracting # 1 : cost  0
0.070 * * [simplify]: Extracting # 2 : cost  0
0.070 * * [simplify]: Extracting # 3 : cost  0
0.070 * * [simplify]: Extracting # 4 : cost  0
0.070 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.075 * * [simplify]: Extracting # 0 : cost  0
0.075 * * [simplify]: Extracting # 1 : cost  0
0.075 * * [simplify]: Extracting # 2 : cost  0
0.075 * * [simplify]: Extracting # 3 : cost  0
0.075 * * [simplify]: Extracting # 4 : cost  0
0.075 * * [simplify]: iteration  2 :  29  enodes  (cost  7 )
0.089 * * [simplify]: Extracting # 0 : cost  0
0.089 * * [simplify]: Extracting # 1 : cost  0
0.089 * * [simplify]: Extracting # 2 : cost  0
0.089 * * [simplify]: Extracting # 3 : cost  0
0.090 * * [simplify]: Extracting # 4 : cost  0
0.090 * * [simplify]: Extracting # 5 : cost  0
0.090 * * [simplify]: iteration  3 :  69  enodes  (cost  7 )
0.144 * * [simplify]: Extracting # 0 : cost  0
0.144 * * [simplify]: Extracting # 1 : cost  0
0.145 * * [simplify]: Extracting # 2 : cost  0
0.145 * * [simplify]: Extracting # 3 : cost  0
0.146 * * [simplify]: Extracting # 4 : cost  0
0.146 * * [simplify]: iteration  4 :  200  enodes  (cost  7 )
0.247 * * [simplify]: Extracting # 0 : cost  0
0.248 * * [simplify]: Extracting # 1 : cost  0
0.249 * * [simplify]: Extracting # 2 : cost  0
0.249 * * [simplify]: Extracting # 3 : cost  0
0.250 * * [simplify]: Extracting # 4 : cost  0
0.250 * * [simplify]: Extracting # 5 : cost  0
0.251 * * [simplify]: iteration  5 :  611  enodes  (cost  7 )
1.056 * * [simplify]: Extracting # 0 : cost  0
1.062 * * [simplify]: Extracting # 1 : cost  0
1.068 * * [simplify]: Extracting # 2 : cost  0
1.073 * * [simplify]: Extracting # 3 : cost  0
1.079 * * [simplify]: Extracting # 4 : cost  0
1.090 * * [simplify]: iteration  6 :  2916  enodes  (cost  7 )
2.694 * * [simplify]: Extracting # 0 : cost  0
2.703 * * [simplify]: Extracting # 1 : cost  0
2.709 * * [simplify]: Extracting # 2 : cost  0
2.714 * * [simplify]: Extracting # 3 : cost  0
2.720 * * [simplify]: Extracting # 4 : cost  0
2.726 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.726 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.726 * * [progress]: iteration 1 / 4
2.726 * * * [progress]: picking best candidate
2.728 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.728 * * * [progress]: localizing error
2.734 * * * [progress]: generating rewritten candidates
2.734 * * * [progress]: generating series expansions
2.734 * * * [progress]: simplifying candidates
2.734 * [simplify]: Simplifying:
  
2.734 * * [simplify]: Extracting # 0 : cost  0
2.734 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
2.735 * * [simplify]: Extracting # 0 : cost  0
2.735 * * [simplify]: iteration done:  0  enodes  (cost  0 )
2.735 * [simplify]: Simplified to:
  
2.735 * * * [progress]: adding candidates to table
2.735 * [progress]: [Phase 3 of 3] Extracting.
2.737 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.737 * * [simplify]: Extracting # 0 : cost  0
2.737 * * [simplify]: Extracting # 1 : cost  0
2.737 * * [simplify]: Extracting # 2 : cost  0
2.737 * * [simplify]: Extracting # 3 : cost  0
2.737 * * [simplify]: Extracting # 4 : cost  0
2.737 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
2.737 * * [simplify]: Extracting # 0 : cost  0
2.737 * * [simplify]: iteration done:  6  enodes  (cost  7 )
2.737 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
5.142 * [regime-testing]: End program error score: 0.0025003125390673834