11.475 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.069 * * * [progress]: [2/2] Setting up program.
0.074 * [progress]: [Phase 2 of 3] Improving.
0.074 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.074 * * [simplify]: Extracting # 0 : cost  0
0.074 * * [simplify]: Extracting # 1 : cost  0
0.074 * * [simplify]: Extracting # 2 : cost  0
0.074 * * [simplify]: Extracting # 3 : cost  0
0.074 * * [simplify]: Extracting # 4 : cost  0
0.074 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.077 * * [simplify]: Extracting # 0 : cost  0
0.077 * * [simplify]: Extracting # 1 : cost  0
0.077 * * [simplify]: Extracting # 2 : cost  0
0.077 * * [simplify]: Extracting # 3 : cost  0
0.077 * * [simplify]: Extracting # 4 : cost  0
0.077 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.082 * * [simplify]: Extracting # 0 : cost  0
0.082 * * [simplify]: Extracting # 1 : cost  0
0.082 * * [simplify]: Extracting # 2 : cost  0
0.083 * * [simplify]: Extracting # 3 : cost  0
0.083 * * [simplify]: Extracting # 4 : cost  0
0.083 * * [simplify]: iteration  2 :  29  enodes  (cost  7 )
0.109 * * [simplify]: Extracting # 0 : cost  0
0.109 * * [simplify]: Extracting # 1 : cost  0
0.109 * * [simplify]: Extracting # 2 : cost  0
0.109 * * [simplify]: Extracting # 3 : cost  0
0.110 * * [simplify]: Extracting # 4 : cost  0
0.110 * * [simplify]: Extracting # 5 : cost  0
0.110 * * [simplify]: iteration  3 :  69  enodes  (cost  7 )
0.138 * * [simplify]: Extracting # 0 : cost  0
0.138 * * [simplify]: Extracting # 1 : cost  0
0.139 * * [simplify]: Extracting # 2 : cost  0
0.139 * * [simplify]: Extracting # 3 : cost  0
0.139 * * [simplify]: Extracting # 4 : cost  0
0.139 * * [simplify]: iteration  4 :  205  enodes  (cost  7 )
0.256 * * [simplify]: Extracting # 0 : cost  0
0.258 * * [simplify]: Extracting # 1 : cost  0
0.261 * * [simplify]: Extracting # 2 : cost  0
0.263 * * [simplify]: Extracting # 3 : cost  0
0.266 * * [simplify]: Extracting # 4 : cost  0
0.268 * * [simplify]: iteration  5 :  1087  enodes  (cost  7 )
1.075 * * [simplify]: Extracting # 0 : cost  0
1.091 * * [simplify]: Extracting # 1 : cost  0
1.098 * * [simplify]: Extracting # 2 : cost  0
1.103 * * [simplify]: Extracting # 3 : cost  0
1.109 * * [simplify]: Extracting # 4 : cost  0
1.118 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
1.118 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
1.119 * * [progress]: iteration 1 / 4
1.119 * * * [progress]: picking best candidate
1.122 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
1.123 * * * [progress]: localizing error
1.135 * * * [progress]: generating rewritten candidates
1.135 * * * [progress]: generating series expansions
1.136 * * * [progress]: simplifying candidates
1.136 * [simplify]: Simplifying:
  
1.136 * * [simplify]: Extracting # 0 : cost  0
1.136 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
1.136 * * [simplify]: Extracting # 0 : cost  0
1.136 * * [simplify]: iteration done:  0  enodes  (cost  0 )
1.136 * [simplify]: Simplified to:
  
1.136 * * * [progress]: adding candidates to table
1.137 * [progress]: [Phase 3 of 3] Extracting.
1.140 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
1.140 * * [simplify]: Extracting # 0 : cost  0
1.140 * * [simplify]: Extracting # 1 : cost  0
1.140 * * [simplify]: Extracting # 2 : cost  0
1.141 * * [simplify]: Extracting # 3 : cost  0
1.141 * * [simplify]: Extracting # 4 : cost  0
1.141 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
1.141 * * [simplify]: Extracting # 0 : cost  0
1.141 * * [simplify]: iteration done:  6  enodes  (cost  7 )
1.141 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
3.401 * [regime-testing]: Baseline error score: 0.0029484888736993568
3.404 * [regime-testing]: Oracle error score: 0.0029484888736993568
3.404 * [regime-testing]: End program error score: 0.0029484888736993568