2.575 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [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 )
0.026 * * [simplify]: iteration  4 :  69  enodes  (cost  7 )
0.035 * * [simplify]: iteration  5 :  126  enodes  (cost  7 )
0.056 * * [simplify]: iteration  6 :  236  enodes  (cost  7 )
0.094 * * [simplify]: iteration  7 :  458  enodes  (cost  7 )
0.238 * * [simplify]: iteration  8 :  1989  enodes  (cost  7 )
0.938 * * [simplify]: iteration  done :  5000  enodes  (cost  7 )
0.938 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
0.943 * * [progress]: iteration 1 / 4
0.943 * * * [progress]: picking best candidate
0.945 * * * * [pick]: Picked  #<alt (λ (x y) (* (- x y) (+ x y)))>
0.945 * * * [progress]: localizing error
0.949 * * * [progress]: generating rewritten candidates
0.949 * * * [progress]: generating series expansions
0.949 * * * [progress]: simplifying candidates
0.949 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
0.950 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.950 * * [simplify]: iteration  done :  0  enodes  (cost  0 )
0.950 * [simplify]: Simplified to:
   
0.950 * * * [progress]: adding candidates to table
0.950 * [progress]: [Phase 3 of 3] Extracting.
0.951 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (* (- x y) (+ x y))
0.951 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.952 * * [simplify]: iteration  1 :  7  enodes  (cost  7 )
0.952 * * [simplify]: iteration  done :  7  enodes  (cost  7 )
0.952 * [simplify]: Simplified to:
   (* (- x y) (+ x y))
1.470 * [regime-testing]: End program error score: 0.0008751093886735842