15.127 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.028 * * * [progress]: [2/2] Setting up program.
0.030 * [progress]: [Phase 2 of 3] Improving.
0.030 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: Extracting # 1 : cost  0
0.030 * * [simplify]: Extracting # 2 : cost  0
0.030 * * [simplify]: Extracting # 3 : cost  0
0.030 * * [simplify]: Extracting # 4 : cost  0
0.030 * * [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 :  11  enodes  (cost  7 )
0.033 * * [simplify]: Extracting # 0 : cost  0
0.033 * * [simplify]: Extracting # 1 : cost  0
0.033 * * [simplify]: Extracting # 2 : cost  0
0.033 * * [simplify]: iteration  2 :  18  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  3 :  35  enodes  (cost  7 )
0.046 * * [simplify]: Extracting # 0 : cost  0
0.047 * * [simplify]: Extracting # 1 : cost  0
0.047 * * [simplify]: Extracting # 2 : cost  0
0.047 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.077 * * [simplify]: Extracting # 0 : cost  0
0.077 * * [simplify]: Extracting # 1 : cost  0
0.078 * * [simplify]: Extracting # 2 : cost  0
0.078 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.155 * * [simplify]: Extracting # 0 : cost  0
0.155 * * [simplify]: Extracting # 1 : cost  0
0.155 * * [simplify]: Extracting # 2 : cost  0
0.155 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.325 * * [simplify]: Extracting # 0 : cost  0
0.326 * * [simplify]: Extracting # 1 : cost  0
0.326 * * [simplify]: Extracting # 2 : cost  0
0.327 * * [simplify]: Extracting # 3 : cost  0
0.328 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.393 * * [simplify]: Extracting # 0 : cost  0
1.395 * * [simplify]: Extracting # 1 : cost  0
1.396 * * [simplify]: Extracting # 2 : cost  0
1.398 * * [simplify]: Extracting # 3 : cost  0
1.399 * * [simplify]: Extracting # 4 : cost  0
1.401 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
10.798 * * [simplify]: Extracting # 0 : cost  0
10.810 * * [simplify]: Extracting # 1 : cost  0
10.815 * * [simplify]: Extracting # 2 : cost  0
10.820 * * [simplify]: Extracting # 3 : cost  0
10.823 * * [simplify]: Extracting # 4 : cost  0
10.826 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
10.827 * [simplify]: Simplified to:
  (- (* a a) (* b b))
10.827 * * [progress]: iteration 1 / 4
10.827 * * * [progress]: picking best candidate
10.828 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
10.828 * * * [progress]: localizing error
10.833 * * * [progress]: generating rewritten candidates
10.833 * * * [progress]: generating series expansions
10.833 * * * [progress]: simplifying candidates
10.833 * [simplify]: Simplifying:
  
10.833 * * [simplify]: Extracting # 0 : cost  0
10.833 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
10.834 * * [simplify]: Extracting # 0 : cost  0
10.834 * * [simplify]: iteration done:  0  enodes  (cost  0 )
10.834 * [simplify]: Simplified to:
  
10.834 * * * [progress]: adding candidates to table
10.834 * [progress]: [Phase 3 of 3] Extracting.
10.835 * [simplify]: Simplifying:
  (- (* a a) (* b b))
10.835 * * [simplify]: Extracting # 0 : cost  0
10.836 * * [simplify]: Extracting # 1 : cost  0
10.836 * * [simplify]: Extracting # 2 : cost  0
10.836 * * [simplify]: Extracting # 3 : cost  0
10.836 * * [simplify]: Extracting # 4 : cost  0
10.836 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
10.836 * * [simplify]: Extracting # 0 : cost  0
10.836 * * [simplify]: iteration done:  5  enodes  (cost  7 )
10.836 * [simplify]: Simplified to:
  (- (* a a) (* b b))
11.945 * [regime-testing]: Baseline error score: 0.007029481021439666
11.946 * [regime-testing]: Oracle error score: 0.007029481021439666
11.946 * [regime-testing]: End program error score: 0.007029481021439666
11.977 * [regime-testing]: Target error score: 0.0010001250156269534