2.813 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.047 * * * [progress]: [2/2] Setting up program.
0.050 * [progress]: [Phase 2 of 3] Improving.
0.051 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.079 * * [simplify]: iteration  0 :  5623  enodes  (cost  7 )
0.080 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
0.080 * * [progress]: iteration 1 / 4
0.080 * * * [progress]: picking best candidate
0.083 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
0.083 * * * [progress]: localizing error
0.088 * * * [progress]: generating rewritten candidates
0.088 * * * [progress]: generating series expansions
0.088 * * * [progress]: simplifying candidates
0.088 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.090 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.090 * [simplify]: Simplified to:
   
0.090 * * * [progress]: adding candidates to table
0.091 * [progress]: [Phase 3 of 3] Extracting.
0.093 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow x 4.0) (pow y 4.0))
0.094 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.094 * * [simplify]: iteration  1 :  6  enodes  (cost  7 )
0.094 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
1.837 * [regime-testing]: End program error score: 0.0026253281660207524