0.824 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.259 * * * [progress]: [2/2] Setting up program.
0.262 * [progress]: [Phase 2 of 3] Improving.
0.265 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 0.5 (- (* x x) y))
0.268 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.272 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.273 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.275 * * [simplify]: iteration  3 :  28  enodes  (cost  7 )
0.279 * * [simplify]: iteration  4 :  36  enodes  (cost  7 )
0.283 * * [simplify]: iteration  5 :  38  enodes  (cost  7 )
0.288 * * [simplify]: iteration  done :  38  enodes  (cost  7 )
0.289 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.290 * * [progress]: iteration 1 / 4
0.290 * * * [progress]: picking best candidate
0.292 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.293 * * * [progress]: localizing error
0.299 * * * [progress]: generating rewritten candidates
0.300 * * * [progress]: generating series expansions
0.300 * * * [progress]: simplifying candidates
0.300 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
0.301 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.301 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
0.301 * [simplify]: Simplified to:
   
0.301 * * * [progress]: adding candidates to table
0.301 * [progress]: [Phase 3 of 3] Extracting.
0.303 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 0.5 (- (* x x) y))
0.303 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.303 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
0.304 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
0.304 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.721 * [regime-testing]: End program error score: 0.03795286442064273