3.200 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.015 * * * [progress]: [2/2] Setting up program.
0.017 * [progress]: [Phase 2 of 3] Improving.
0.017 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (+ x y) (- x y))
0.018 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.019 * * [simplify]: iteration  1 :  9  enodes  (cost  7 )
0.020 * * [simplify]: iteration  2 :  24  enodes  (cost  7 )
0.023 * * [simplify]: iteration  3 :  58  enodes  (cost  7 )
0.032 * * [simplify]: iteration  4 :  115  enodes  (cost  7 )
0.054 * * [simplify]: iteration  5 :  214  enodes  (cost  7 )
0.086 * * [simplify]: iteration  6 :  309  enodes  (cost  7 )
0.177 * * [simplify]: iteration  7 :  482  enodes  (cost  7 )
0.443 * * [simplify]: iteration  8 :  1118  enodes  (cost  7 )
1.954 * * [simplify]: iteration  9 :  3550  enodes  (cost  7 )
3.934 * * [simplify]: iteration  done :  5000  enodes  (cost  7 )
3.934 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
3.934 * * [progress]: iteration 1 / 4
3.934 * * * [progress]: picking best candidate
3.935 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
3.935 * * * [progress]: localizing error
3.944 * * * [progress]: generating rewritten candidates
3.944 * * * [progress]: generating series expansions
3.945 * * * [progress]: simplifying candidates
3.945 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
3.945 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
3.946 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
3.946 * [simplify]: Simplified to:
   
3.946 * * * [progress]: adding candidates to table
3.946 * [progress]: [Phase 3 of 3] Extracting.
3.947 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (+ x y) (- x y))
3.947 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
3.948 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
3.948 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
3.948 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
4.439 * [regime-testing]: End program error score: 0.0008751093886735842