8.572 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* x x) (* y y))
0.024 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.025 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.026 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.029 * * [simplify]: iteration  3 :  32  enodes  (cost  7 )
0.033 * * [simplify]: iteration  4 :  57  enodes  (cost  7 )
0.041 * * [simplify]: iteration  5 :  98  enodes  (cost  7 )
0.057 * * [simplify]: iteration  6 :  163  enodes  (cost  7 )
0.092 * * [simplify]: iteration  7 :  331  enodes  (cost  7 )
0.203 * * [simplify]: iteration  8 :  1632  enodes  (cost  7 )
0.887 * * [simplify]: iteration  done :  5001  enodes  (cost  7 )
0.887 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
0.889 * * [progress]: iteration 1 / 4
0.889 * * * [progress]: picking best candidate
0.890 * * * * [pick]: Picked  #<alt (λ (x y) (* (- x y) (+ x y)))>
0.890 * * * [progress]: localizing error
0.894 * * * [progress]: generating rewritten candidates
0.894 * * * [progress]: generating series expansions
0.894 * * * [progress]: simplifying candidates
0.895 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
0.895 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.895 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
0.895 * [simplify]: Simplified to:
   
0.895 * * * [progress]: adding candidates to table
0.896 * [progress]: [Phase 3 of 3] Extracting.
0.897 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (- x y) (+ x y))
0.897 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.897 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
0.898 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
0.898 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
1.410 * [regime-testing]: End program error score: 0.0008751093886735842