3.939 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.036 * * * [progress]: [2/2] Setting up program.
0.039 * [progress]: [Phase 2 of 3] Improving.
0.039 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.041 * * [simplify]: iteration  0 :  14  enodes  (cost  3 )
0.042 * * [simplify]: iteration  1 :  29  enodes  (cost  3 )
0.044 * * [simplify]: iteration  2 :  68  enodes  (cost  3 )
0.046 * * [simplify]: iteration  3 :  204  enodes  (cost  3 )
0.050 * * [simplify]: iteration  4 :  776  enodes  (cost  3 )
0.069 * * [simplify]: iteration  5 :  3986  enodes  (cost  3 )
0.173 * * [simplify]: iteration  6 :  5002  enodes  (cost  3 )
0.173 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
0.173 * * [progress]: iteration 1 / 4
0.173 * * * [progress]: picking best candidate
0.175 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
0.175 * * * [progress]: localizing error
0.181 * * * [progress]: generating rewritten candidates
0.181 * * * [progress]: generating series expansions
0.181 * * * [progress]: simplifying candidates
0.181 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.183 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.183 * [simplify]: Simplified to:
   
0.183 * * * [progress]: adding candidates to table
0.183 * [progress]: [Phase 3 of 3] Extracting.
0.185 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.185 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
0.185 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
1.222 * [regime-testing]: End program error score: 0.0023752969121140144