3.899 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.032 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.034 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
0.037 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.039 * * [simplify]: iteration  1 :  24  enodes  (cost  3 )
0.041 * * [simplify]: iteration  2 :  53  enodes  (cost  3 )
0.044 * * [simplify]: iteration  3 :  130  enodes  (cost  3 )
0.047 * * [simplify]: iteration  4 :  205  enodes  (cost  3 )
0.051 * * [simplify]: iteration  5 :  295  enodes  (cost  3 )
0.056 * * [simplify]: iteration  6 :  446  enodes  (cost  3 )
0.064 * * [simplify]: iteration  7 :  1317  enodes  (cost  3 )
0.106 * * [simplify]: iteration  8 :  5002  enodes  (cost  3 )
0.106 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
0.107 * * [progress]: iteration 1 / 4
0.107 * * * [progress]: picking best candidate
0.108 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
0.108 * * * [progress]: localizing error
0.113 * * * [progress]: generating rewritten candidates
0.113 * * * [progress]: generating series expansions
0.113 * * * [progress]: simplifying candidates
0.114 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.116 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.116 * [simplify]: Simplified to:
   
0.116 * * * [progress]: adding candidates to table
0.117 * [progress]: [Phase 3 of 3] Extracting.
0.118 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
0.120 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.120 * * [simplify]: iteration  1 :  7  enodes  (cost  3 )
0.120 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
1.019 * [regime-testing]: End program error score: 0.0007500937617202151