2.564 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.026 * * * [progress]: [2/2] Setting up program.
0.029 * [progress]: [Phase 2 of 3] Improving.
0.029 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.029 * * [simplify]: Extracting # 0 : cost  0
0.029 * * [simplify]: Extracting # 1 : cost  0
0.029 * * [simplify]: Extracting # 2 : cost  0
0.029 * * [simplify]: Extracting # 3 : cost  0
0.029 * * [simplify]: Extracting # 4 : cost  0
0.029 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.031 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.034 * * [simplify]: Extracting # 0 : cost  0
0.035 * * [simplify]: Extracting # 1 : cost  0
0.035 * * [simplify]: Extracting # 2 : cost  0
0.035 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.040 * * [simplify]: Extracting # 0 : cost  0
0.040 * * [simplify]: Extracting # 1 : cost  0
0.040 * * [simplify]: Extracting # 2 : cost  0
0.040 * * [simplify]: iteration  3 :  32  enodes  (cost  7 )
0.054 * * [simplify]: Extracting # 0 : cost  0
0.054 * * [simplify]: Extracting # 1 : cost  0
0.054 * * [simplify]: Extracting # 2 : cost  0
0.054 * * [simplify]: iteration  4 :  58  enodes  (cost  7 )
0.069 * * [simplify]: Extracting # 0 : cost  0
0.069 * * [simplify]: Extracting # 1 : cost  0
0.070 * * [simplify]: Extracting # 2 : cost  0
0.070 * * [simplify]: iteration  5 :  129  enodes  (cost  7 )
0.126 * * [simplify]: Extracting # 0 : cost  0
0.126 * * [simplify]: Extracting # 1 : cost  0
0.127 * * [simplify]: Extracting # 2 : cost  0
0.127 * * [simplify]: Extracting # 3 : cost  0
0.127 * * [simplify]: iteration  6 :  187  enodes  (cost  7 )
0.225 * * [simplify]: Extracting # 0 : cost  0
0.226 * * [simplify]: Extracting # 1 : cost  0
0.227 * * [simplify]: Extracting # 2 : cost  0
0.227 * * [simplify]: Extracting # 3 : cost  0
0.228 * * [simplify]: iteration  7 :  369  enodes  (cost  7 )
1.002 * * [simplify]: Extracting # 0 : cost  0
1.005 * * [simplify]: Extracting # 1 : cost  0
1.009 * * [simplify]: Extracting # 2 : cost  0
1.012 * * [simplify]: Extracting # 3 : cost  0
1.015 * * [simplify]: Extracting # 4 : cost  0
1.017 * * [simplify]: iteration  8 :  1551  enodes  (cost  7 )
14.611 * * [simplify]: Extracting # 0 : cost  0
14.621 * * [simplify]: Extracting # 1 : cost  0
14.624 * * [simplify]: Extracting # 2 : cost  0
14.627 * * [simplify]: Extracting # 3 : cost  0
14.632 * * [simplify]: Extracting # 4 : cost  0
14.635 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
14.636 * [simplify]: Simplified to:
  (* (- x y) (+ x y))
14.638 * * [progress]: iteration 1 / 4
14.638 * * * [progress]: picking best candidate
14.639 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
14.639 * * * [progress]: localizing error
14.644 * * * [progress]: generating rewritten candidates
14.644 * * * [progress]: generating series expansions
14.644 * * * [progress]: simplifying candidates
14.645 * [simplify]: Simplifying:
  
14.645 * * [simplify]: Extracting # 0 : cost  0
14.645 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
14.645 * * [simplify]: Extracting # 0 : cost  0
14.645 * * [simplify]: iteration done:  0  enodes  (cost  0 )
14.645 * [simplify]: Simplified to:
  
14.645 * * * [progress]: adding candidates to table
14.645 * [progress]: [Phase 3 of 3] Extracting.
14.646 * [simplify]: Simplifying:
  (- (* x x) (* y y))
14.646 * * [simplify]: Extracting # 0 : cost  0
14.646 * * [simplify]: Extracting # 1 : cost  0
14.646 * * [simplify]: Extracting # 2 : cost  0
14.646 * * [simplify]: Extracting # 3 : cost  0
14.646 * * [simplify]: Extracting # 4 : cost  0
14.646 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
14.647 * * [simplify]: Extracting # 0 : cost  0
14.647 * * [simplify]: iteration done:  5  enodes  (cost  7 )
14.647 * [simplify]: Simplified to:
  (- (* x x) (* y y))
15.659 * [regime-testing]: Baseline error score: 0.007029481021439666
15.662 * [regime-testing]: Oracle error score: 0.007029481021439666
15.662 * [regime-testing]: End program error score: 0.007029481021439666