96.322 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.015 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (+ x y) x)
0.017 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.018 * * [simplify]: iteration  1 :  9  enodes  (cost  5 )
0.019 * * [simplify]: iteration  2 :  16  enodes  (cost  5 )
0.021 * * [simplify]: iteration  3 :  22  enodes  (cost  3 )
0.023 * * [simplify]: iteration  4 :  29  enodes  (cost  1 )
0.032 * * [simplify]: iteration  5 :  140  enodes  (cost  1 )
0.187 * * [simplify]: iteration  6 :  881  enodes  (cost  1 )
1.246 * * [simplify]: iteration  7 :  1908  enodes  (cost  1 )
3.851 * * [simplify]: iteration  done :  5000  enodes  (cost  1 )
3.851 * [simplify]: Simplified to:
   y
3.854 * * [progress]: iteration 1 / 4
3.854 * * * [progress]: picking best candidate
3.855 * * * * [pick]: Picked  #<alt (λ (x y) y)>
3.855 * * * [progress]: localizing error
3.856 * * * [progress]: generating rewritten candidates
3.856 * * * [progress]: generating series expansions
3.856 * * * [progress]: simplifying candidates
3.856 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
3.857 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
3.857 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
3.857 * [simplify]: Simplified to:
   
3.857 * * * [progress]: adding candidates to table
3.857 * [progress]: [Phase 3 of 3] Extracting.
3.858 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   y
3.858 * * [simplify]: iteration  0 :  1  enodes  (cost  1 )
3.859 * * [simplify]: iteration  done :  1  enodes  (cost  1 )
3.859 * [simplify]: Simplified to:
   y
4.317 * [regime-testing]: End program error score: 0
4.335 * [regime-testing]: Target error score: 0