63.711 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.030 * [progress]: [Phase 2 of 3] Improving.
0.030 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.031 * * [simplify]: Extracting # 3 : cost  0
0.031 * * [simplify]: Extracting # 4 : cost  0
0.031 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.031 * * [simplify]: Extracting # 0 : cost  0
0.032 * * [simplify]: Extracting # 1 : cost  0
0.032 * * [simplify]: Extracting # 2 : cost  0
0.032 * * [simplify]: iteration  1 :  9  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  2 :  24  enodes  (cost  7 )
0.042 * * [simplify]: Extracting # 0 : cost  0
0.042 * * [simplify]: Extracting # 1 : cost  0
0.042 * * [simplify]: Extracting # 2 : cost  0
0.042 * * [simplify]: iteration  3 :  53  enodes  (cost  7 )
0.061 * * [simplify]: Extracting # 0 : cost  0
0.061 * * [simplify]: Extracting # 1 : cost  0
0.061 * * [simplify]: Extracting # 2 : cost  0
0.061 * * [simplify]: iteration  4 :  126  enodes  (cost  7 )
0.089 * * [simplify]: Extracting # 0 : cost  0
0.089 * * [simplify]: Extracting # 1 : cost  0
0.089 * * [simplify]: Extracting # 2 : cost  0
0.089 * * [simplify]: iteration  5 :  258  enodes  (cost  7 )
0.178 * * [simplify]: Extracting # 0 : cost  0
0.179 * * [simplify]: Extracting # 1 : cost  0
0.179 * * [simplify]: Extracting # 2 : cost  0
0.179 * * [simplify]: Extracting # 3 : cost  0
0.179 * * [simplify]: iteration  6 :  509  enodes  (cost  7 )
0.297 * * [simplify]: Extracting # 0 : cost  0
0.300 * * [simplify]: Extracting # 1 : cost  0
0.300 * * [simplify]: Extracting # 2 : cost  0
0.300 * * [simplify]: Extracting # 3 : cost  0
0.300 * * [simplify]: Extracting # 4 : cost  0
0.301 * * [simplify]: iteration  7 :  684  enodes  (cost  7 )
0.587 * * [simplify]: Extracting # 0 : cost  0
0.594 * * [simplify]: Extracting # 1 : cost  0
0.596 * * [simplify]: Extracting # 2 : cost  0
0.599 * * [simplify]: Extracting # 3 : cost  0
0.601 * * [simplify]: iteration  8 :  2688  enodes  (cost  7 )
2.350 * * [simplify]: Extracting # 0 : cost  0
2.389 * * [simplify]: Extracting # 1 : cost  0
2.393 * * [simplify]: Extracting # 2 : cost  0
2.397 * * [simplify]: Extracting # 3 : cost  0
2.404 * * [simplify]: Extracting # 4 : cost  0
2.410 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.410 * [simplify]: Simplified to:
  (- (* x x) (* y y))
2.414 * * [progress]: iteration 1 / 4
2.414 * * * [progress]: picking best candidate
2.415 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
2.415 * * * [progress]: localizing error
2.423 * * * [progress]: generating rewritten candidates
2.423 * * * [progress]: generating series expansions
2.423 * * * [progress]: simplifying candidates
2.424 * [simplify]: Simplifying:
  
2.424 * * [simplify]: Extracting # 0 : cost  0
2.424 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
2.424 * * [simplify]: Extracting # 0 : cost  0
2.424 * * [simplify]: iteration done:  0  enodes  (cost  0 )
2.424 * [simplify]: Simplified to:
  
2.424 * * * [progress]: adding candidates to table
2.424 * [progress]: [Phase 3 of 3] Extracting.
2.427 * [simplify]: Simplifying:
  (- (* x x) (* y y))
2.427 * * [simplify]: Extracting # 0 : cost  0
2.427 * * [simplify]: Extracting # 1 : cost  0
2.427 * * [simplify]: Extracting # 2 : cost  0
2.427 * * [simplify]: Extracting # 3 : cost  0
2.427 * * [simplify]: Extracting # 4 : cost  0
2.427 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
2.427 * * [simplify]: Extracting # 0 : cost  0
2.427 * * [simplify]: iteration done:  5  enodes  (cost  7 )
2.427 * [simplify]: Simplified to:
  (- (* x x) (* y y))
3.801 * [regime-testing]: Baseline error score: 0.005823848293626848
3.803 * [regime-testing]: Oracle error score: 0.005823848293626848
3.804 * [regime-testing]: End program error score: 0.005823848293626848