0.800 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.256 * * * [progress]: [2/2] Setting up program.
0.258 * [progress]: [Phase 2 of 3] Improving.
0.261 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 0.5 (- (* x x) y))
0.264 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.267 * * [simplify]: iteration  1 :  9  enodes  (cost  7 )
0.268 * * [simplify]: iteration  2 :  16  enodes  (cost  7 )
0.271 * * [simplify]: iteration  3 :  25  enodes  (cost  7 )
0.274 * * [simplify]: iteration  4 :  29  enodes  (cost  7 )
0.278 * * [simplify]: iteration  done :  29  enodes  (cost  7 )
0.278 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.279 * * [progress]: iteration 1 / 4
0.279 * * * [progress]: picking best candidate
0.281 * * * * [pick]: Picked  #<alt (λ (x y) (* 0.5 (- (* x x) y)))>
0.281 * * * [progress]: localizing error
0.287 * * * [progress]: generating rewritten candidates
0.288 * * * [progress]: generating series expansions
0.288 * * * [progress]: simplifying candidates
0.289 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
0.289 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.289 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
0.289 * [simplify]: Simplified to:
   
0.289 * * * [progress]: adding candidates to table
0.290 * [progress]: [Phase 3 of 3] Extracting.
0.291 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* 0.5 (- (* x x) y))
0.292 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.292 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
0.292 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
0.292 * [simplify]: Simplified to:
   (* 0.5 (- (* x x) y))
0.725 * [regime-testing]: End program error score: 0.03795286442064273