12.386 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.022 * * * [progress]: [2/2] Setting up program.
0.024 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.024 * * [simplify]: Extracting # 0 : cost  0
0.024 * * [simplify]: Extracting # 1 : cost  0
0.024 * * [simplify]: Extracting # 2 : cost  0
0.024 * * [simplify]: Extracting # 3 : cost  0
0.024 * * [simplify]: Extracting # 4 : cost  0
0.024 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.025 * * [simplify]: Extracting # 0 : cost  0
0.025 * * [simplify]: Extracting # 1 : cost  0
0.025 * * [simplify]: Extracting # 2 : cost  0
0.025 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.027 * * [simplify]: Extracting # 0 : cost  0
0.027 * * [simplify]: Extracting # 1 : cost  0
0.027 * * [simplify]: Extracting # 2 : cost  0
0.027 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: Extracting # 1 : cost  0
0.030 * * [simplify]: Extracting # 2 : cost  0
0.030 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.038 * * [simplify]: Extracting # 0 : cost  0
0.038 * * [simplify]: Extracting # 1 : cost  0
0.038 * * [simplify]: Extracting # 2 : cost  0
0.038 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.063 * * [simplify]: Extracting # 0 : cost  0
0.063 * * [simplify]: Extracting # 1 : cost  0
0.063 * * [simplify]: Extracting # 2 : cost  0
0.063 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.112 * * [simplify]: Extracting # 0 : cost  0
0.112 * * [simplify]: Extracting # 1 : cost  0
0.112 * * [simplify]: Extracting # 2 : cost  0
0.113 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.227 * * [simplify]: Extracting # 0 : cost  0
0.227 * * [simplify]: Extracting # 1 : cost  0
0.228 * * [simplify]: Extracting # 2 : cost  0
0.228 * * [simplify]: Extracting # 3 : cost  0
0.229 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.189 * * [simplify]: Extracting # 0 : cost  0
1.191 * * [simplify]: Extracting # 1 : cost  0
1.193 * * [simplify]: Extracting # 2 : cost  0
1.195 * * [simplify]: Extracting # 3 : cost  0
1.197 * * [simplify]: Extracting # 4 : cost  0
1.198 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
10.633 * * [simplify]: Extracting # 0 : cost  0
10.653 * * [simplify]: Extracting # 1 : cost  0
10.656 * * [simplify]: Extracting # 2 : cost  0
10.659 * * [simplify]: Extracting # 3 : cost  0
10.663 * * [simplify]: Extracting # 4 : cost  0
10.668 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
10.669 * [simplify]: Simplified to:
  (- (* a a) (* b b))
10.669 * * [progress]: iteration 1 / 4
10.669 * * * [progress]: picking best candidate
10.671 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
10.671 * * * [progress]: localizing error
10.676 * * * [progress]: generating rewritten candidates
10.677 * * * [progress]: generating series expansions
10.677 * * * [progress]: simplifying candidates
10.677 * [simplify]: Simplifying:
  
10.677 * * [simplify]: Extracting # 0 : cost  0
10.677 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
10.677 * * [simplify]: Extracting # 0 : cost  0
10.677 * * [simplify]: iteration done:  0  enodes  (cost  0 )
10.677 * [simplify]: Simplified to:
  
10.677 * * * [progress]: adding candidates to table
10.677 * [progress]: [Phase 3 of 3] Extracting.
10.678 * [simplify]: Simplifying:
  (- (* a a) (* b b))
10.679 * * [simplify]: Extracting # 0 : cost  0
10.679 * * [simplify]: Extracting # 1 : cost  0
10.679 * * [simplify]: Extracting # 2 : cost  0
10.679 * * [simplify]: Extracting # 3 : cost  0
10.679 * * [simplify]: Extracting # 4 : cost  0
10.679 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
10.679 * * [simplify]: Extracting # 0 : cost  0
10.679 * * [simplify]: iteration done:  5  enodes  (cost  7 )
10.679 * [simplify]: Simplified to:
  (- (* a a) (* b b))
11.771 * [regime-testing]: Baseline error score: 0.007029481021439666
11.773 * [regime-testing]: Oracle error score: 0.007029481021439666
11.774 * [regime-testing]: End program error score: 0.007029481021439666
11.792 * [regime-testing]: Target error score: 0.0010001250156269534