7.440 * [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 x) (* y y))
0.018 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.019 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.020 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.022 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.027 * * [simplify]: iteration  4 :  66  enodes  (cost  7 )
0.036 * * [simplify]: iteration  5 :  123  enodes  (cost  7 )
0.059 * * [simplify]: iteration  6 :  227  enodes  (cost  7 )
0.099 * * [simplify]: iteration  7 :  449  enodes  (cost  7 )
0.357 * * [simplify]: iteration  8 :  1906  enodes  (cost  7 )
2.592 * * [simplify]: iteration  done :  5001  enodes  (cost  7 )
2.592 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
2.594 * * [progress]: iteration 1 / 4
2.594 * * * [progress]: picking best candidate
2.596 * * * * [pick]: Picked  #<alt (λ (x y) (* (- x y) (+ x y)))>
2.596 * * * [progress]: localizing error
2.600 * * * [progress]: generating rewritten candidates
2.600 * * * [progress]: generating series expansions
2.600 * * * [progress]: simplifying candidates
2.601 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
2.601 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
2.601 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
2.601 * [simplify]: Simplified to:
   
2.602 * * * [progress]: adding candidates to table
2.602 * [progress]: [Phase 3 of 3] Extracting.
2.603 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (- x y) (+ x y))
2.603 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
2.603 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
2.604 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
2.604 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
3.094 * [regime-testing]: End program error score: 0.0008751093886735842