25.565 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (+ x y) x)
0.016 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.017 * * [simplify]: iteration  1 :  9  enodes  (cost  5 )
0.018 * * [simplify]: iteration  2 :  16  enodes  (cost  5 )
0.020 * * [simplify]: iteration  3 :  22  enodes  (cost  3 )
0.022 * * [simplify]: iteration  4 :  29  enodes  (cost  1 )
0.030 * * [simplify]: iteration  5 :  160  enodes  (cost  1 )
0.109 * * [simplify]: iteration  6 :  957  enodes  (cost  1 )
1.696 * * [simplify]: iteration  7 :  2759  enodes  (cost  1 )
6.344 * * [simplify]: iteration  done :  5000  enodes  (cost  1 )
6.344 * [simplify]: Simplified to:
   y
6.347 * * [progress]: iteration 1 / 4
6.347 * * * [progress]: picking best candidate
6.348 * * * * [pick]: Picked  #<alt (λ (x y) y)>
6.348 * * * [progress]: localizing error
6.349 * * * [progress]: generating rewritten candidates
6.349 * * * [progress]: generating series expansions
6.349 * * * [progress]: simplifying candidates
6.349 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
6.350 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
6.350 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
6.350 * [simplify]: Simplified to:
   
6.350 * * * [progress]: adding candidates to table
6.350 * [progress]: [Phase 3 of 3] Extracting.
6.351 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   y
6.351 * * [simplify]: iteration  0 :  1  enodes  (cost  1 )
6.351 * * [simplify]: iteration  done :  1  enodes  (cost  1 )
6.351 * [simplify]: Simplified to:
   y
6.784 * [regime-testing]: End program error score: 0
6.799 * [regime-testing]: Target error score: 0