20.796 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.030 * * * [progress]: [2/2] Setting up program.
0.032 * [progress]: [Phase 2 of 3] Improving.
0.032 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.032 * * [simplify]: Extracting # 0 : cost  0
0.032 * * [simplify]: Extracting # 1 : cost  0
0.032 * * [simplify]: Extracting # 2 : cost  0
0.032 * * [simplify]: Extracting # 3 : cost  0
0.032 * * [simplify]: Extracting # 4 : cost  0
0.033 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.034 * * [simplify]: Extracting # 0 : cost  0
0.034 * * [simplify]: Extracting # 1 : cost  0
0.034 * * [simplify]: Extracting # 2 : cost  0
0.034 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.036 * * [simplify]: Extracting # 0 : cost  0
0.036 * * [simplify]: Extracting # 1 : cost  0
0.036 * * [simplify]: Extracting # 2 : cost  0
0.036 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.041 * * [simplify]: Extracting # 0 : cost  0
0.041 * * [simplify]: Extracting # 1 : cost  0
0.041 * * [simplify]: Extracting # 2 : cost  0
0.041 * * [simplify]: iteration  3 :  32  enodes  (cost  7 )
0.050 * * [simplify]: Extracting # 0 : cost  0
0.050 * * [simplify]: Extracting # 1 : cost  0
0.050 * * [simplify]: Extracting # 2 : cost  0
0.050 * * [simplify]: iteration  4 :  58  enodes  (cost  7 )
0.072 * * [simplify]: Extracting # 0 : cost  0
0.072 * * [simplify]: Extracting # 1 : cost  0
0.072 * * [simplify]: Extracting # 2 : cost  0
0.072 * * [simplify]: iteration  5 :  129  enodes  (cost  7 )
0.118 * * [simplify]: Extracting # 0 : cost  0
0.118 * * [simplify]: Extracting # 1 : cost  0
0.119 * * [simplify]: Extracting # 2 : cost  0
0.119 * * [simplify]: Extracting # 3 : cost  0
0.119 * * [simplify]: iteration  6 :  187  enodes  (cost  7 )
0.200 * * [simplify]: Extracting # 0 : cost  0
0.200 * * [simplify]: Extracting # 1 : cost  0
0.201 * * [simplify]: Extracting # 2 : cost  0
0.201 * * [simplify]: Extracting # 3 : cost  0
0.201 * * [simplify]: iteration  7 :  369  enodes  (cost  7 )
0.824 * * [simplify]: Extracting # 0 : cost  0
0.827 * * [simplify]: Extracting # 1 : cost  0
0.829 * * [simplify]: Extracting # 2 : cost  0
0.831 * * [simplify]: Extracting # 3 : cost  0
0.833 * * [simplify]: Extracting # 4 : cost  0
0.835 * * [simplify]: iteration  8 :  1551  enodes  (cost  7 )
11.826 * * [simplify]: Extracting # 0 : cost  0
11.838 * * [simplify]: Extracting # 1 : cost  0
11.844 * * [simplify]: Extracting # 2 : cost  0
11.849 * * [simplify]: Extracting # 3 : cost  0
11.854 * * [simplify]: Extracting # 4 : cost  0
11.860 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
11.860 * [simplify]: Simplified to:
  (* (- x y) (+ x y))
11.865 * * [progress]: iteration 1 / 4
11.865 * * * [progress]: picking best candidate
11.867 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
11.867 * * * [progress]: localizing error
11.872 * * * [progress]: generating rewritten candidates
11.872 * * * [progress]: generating series expansions
11.872 * * * [progress]: simplifying candidates
11.873 * [simplify]: Simplifying:
  
11.873 * * [simplify]: Extracting # 0 : cost  0
11.873 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
11.873 * * [simplify]: Extracting # 0 : cost  0
11.873 * * [simplify]: iteration done:  0  enodes  (cost  0 )
11.873 * [simplify]: Simplified to:
  
11.873 * * * [progress]: adding candidates to table
11.873 * [progress]: [Phase 3 of 3] Extracting.
11.879 * [simplify]: Simplifying:
  (- (* x x) (* y y))
11.879 * * [simplify]: Extracting # 0 : cost  0
11.879 * * [simplify]: Extracting # 1 : cost  0
11.879 * * [simplify]: Extracting # 2 : cost  0
11.879 * * [simplify]: Extracting # 3 : cost  0
11.879 * * [simplify]: Extracting # 4 : cost  0
11.879 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
11.879 * * [simplify]: Extracting # 0 : cost  0
11.879 * * [simplify]: iteration done:  5  enodes  (cost  7 )
11.879 * [simplify]: Simplified to:
  (- (* x x) (* y y))
13.029 * [regime-testing]: End program error score: 0.006500812601575197