3.314 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.018 * [progress]: [Phase 2 of 3] Improving.
0.018 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (+ x y) (- x y))
0.019 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.020 * * [simplify]: iteration  1 :  9  enodes  (cost  7 )
0.021 * * [simplify]: iteration  2 :  24  enodes  (cost  7 )
0.024 * * [simplify]: iteration  3 :  52  enodes  (cost  7 )
0.032 * * [simplify]: iteration  4 :  93  enodes  (cost  7 )
0.051 * * [simplify]: iteration  5 :  144  enodes  (cost  7 )
0.076 * * [simplify]: iteration  6 :  209  enodes  (cost  7 )
0.118 * * [simplify]: iteration  7 :  321  enodes  (cost  7 )
0.283 * * [simplify]: iteration  8 :  939  enodes  (cost  7 )
1.313 * * [simplify]: iteration  9 :  3170  enodes  (cost  7 )
3.301 * * [simplify]: iteration  done :  5000  enodes  (cost  7 )
3.301 * [simplify]: Simplified to:
   (- (* x x) (* y y))
3.303 * * [progress]: iteration 1 / 4
3.304 * * * [progress]: picking best candidate
3.305 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
3.305 * * * [progress]: localizing error
3.309 * * * [progress]: generating rewritten candidates
3.309 * * * [progress]: generating series expansions
3.309 * * * [progress]: simplifying candidates
3.309 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
3.310 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
3.310 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
3.310 * [simplify]: Simplified to:
   
3.310 * * * [progress]: adding candidates to table
3.310 * [progress]: [Phase 3 of 3] Extracting.
3.312 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (+ x y) (- x y))
3.312 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
3.312 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
3.312 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
3.312 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
3.835 * [regime-testing]: End program error score: 0.0008751093886735842