10.333 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.062 * * * [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 )
0.070 * * [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
0.076 * * [simplify]: Extracting # 1 : cost  0
0.076 * * [simplify]: Extracting # 2 : cost  0
0.076 * * [simplify]: Extracting # 3 : cost  0
0.076 * * [simplify]: Extracting # 4 : cost  0
0.076 * * [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 )
0.108 * * [simplify]: Extracting # 0 : cost  0
0.108 * * [simplify]: Extracting # 1 : cost  0
0.108 * * [simplify]: Extracting # 2 : cost  0
0.108 * * [simplify]: Extracting # 3 : cost  0
0.109 * * [simplify]: Extracting # 4 : cost  0
0.109 * * [simplify]: iteration  4 :  200  enodes  (cost  7 )
0.212 * * [simplify]: Extracting # 0 : cost  0
0.213 * * [simplify]: Extracting # 1 : cost  0
0.213 * * [simplify]: Extracting # 2 : cost  0
0.214 * * [simplify]: Extracting # 3 : cost  0
0.219 * * [simplify]: Extracting # 4 : cost  0
0.219 * * [simplify]: Extracting # 5 : cost  0
0.220 * * [simplify]: iteration  5 :  611  enodes  (cost  7 )
1.022 * * [simplify]: Extracting # 0 : cost  0
1.025 * * [simplify]: Extracting # 1 : cost  0
1.028 * * [simplify]: Extracting # 2 : cost  0
1.030 * * [simplify]: Extracting # 3 : cost  0
1.033 * * [simplify]: Extracting # 4 : cost  0
1.036 * * [simplify]: iteration  6 :  2916  enodes  (cost  7 )
2.745 * * [simplify]: Extracting # 0 : cost  0
2.763 * * [simplify]: Extracting # 1 : cost  0
2.774 * * [simplify]: Extracting # 2 : cost  0
2.785 * * [simplify]: Extracting # 3 : cost  0
2.796 * * [simplify]: Extracting # 4 : cost  0
2.804 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.804 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.804 * * [progress]: iteration 1 / 4
2.804 * * * [progress]: picking best candidate
2.806 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.806 * * * [progress]: localizing error
2.813 * * * [progress]: generating rewritten candidates
2.813 * * * [progress]: generating series expansions
2.813 * * * [progress]: simplifying candidates
2.813 * [simplify]: Simplifying:
  
2.813 * * [simplify]: Extracting # 0 : cost  0
2.813 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
2.813 * * [simplify]: Extracting # 0 : cost  0
2.813 * * [simplify]: iteration done:  0  enodes  (cost  0 )
2.813 * [simplify]: Simplified to:
  
2.813 * * * [progress]: adding candidates to table
2.813 * [progress]: [Phase 3 of 3] Extracting.
2.815 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
2.815 * * [simplify]: Extracting # 0 : cost  0
2.815 * * [simplify]: Extracting # 1 : cost  0
2.815 * * [simplify]: Extracting # 2 : cost  0
2.815 * * [simplify]: Extracting # 3 : cost  0
2.815 * * [simplify]: Extracting # 4 : cost  0
2.816 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
2.816 * * [simplify]: Extracting # 0 : cost  0
2.816 * * [simplify]: iteration done:  6  enodes  (cost  7 )
2.816 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
5.081 * [regime-testing]: End program error score: 0.002750343792974122