4.940 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.154 * * * [progress]: [2/2] Setting up program.
0.157 * [progress]: [Phase 2 of 3] Improving.
0.157 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.200 * * [simplify]: iteration  0 :  5064  enodes  (cost  7 )
0.201 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
0.201 * * [progress]: iteration 1 / 4
0.201 * * * [progress]: picking best candidate
0.204 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
0.204 * * * [progress]: localizing error
0.210 * * * [progress]: generating rewritten candidates
0.210 * * * [progress]: generating series expansions
0.210 * * * [progress]: simplifying candidates
0.210 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.212 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.212 * [simplify]: Simplified to:
   
0.212 * * * [progress]: adding candidates to table
0.212 * [progress]: [Phase 3 of 3] Extracting.
0.215 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.216 * * [simplify]: iteration  0 :  16  enodes  (cost  7 )
0.216 * * [simplify]: iteration  1 :  16  enodes  (cost  7 )
0.216 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
1.008 * [regime-testing]: End program error score: 0.0019483638580724035