21.551 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [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 )
0.024 * * [simplify]: iteration  4 :  24  enodes  (cost  1 )
0.025 * * [simplify]: iteration  done :  24  enodes  (cost  1 )
0.025 * [simplify]: Simplified to:
   y
0.029 * * [progress]: iteration 1 / 4
0.029 * * * [progress]: picking best candidate
0.030 * * * * [pick]: Picked  #<alt (λ (x y) y)>
0.030 * * * [progress]: localizing error
0.031 * * * [progress]: generating rewritten candidates
0.031 * * * [progress]: generating series expansions
0.031 * * * [progress]: simplifying candidates
0.032 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
0.032 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.032 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
0.032 * [simplify]: Simplified to:
   
0.033 * * * [progress]: adding candidates to table
0.033 * [progress]: [Phase 3 of 3] Extracting.
0.034 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   y
0.034 * * [simplify]: iteration  0 :  1  enodes  (cost  1 )
0.034 * * [simplify]: iteration  done :  1  enodes  (cost  1 )
0.035 * [simplify]: Simplified to:
   y
0.471 * [regime-testing]: End program error score: 0
0.490 * [regime-testing]: Target error score: 0