12.127 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.031 * * * [progress]: [2/2] Setting up program.
0.036 * [progress]: [Phase 2 of 3] Improving.
0.036 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.037 * * [simplify]: Extracting # 0 : cost  0
0.037 * * [simplify]: Extracting # 1 : cost  0
0.037 * * [simplify]: Extracting # 2 : cost  0
0.037 * * [simplify]: Extracting # 3 : cost  0
0.037 * * [simplify]: Extracting # 4 : cost  0
0.037 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.038 * * [simplify]: Extracting # 0 : cost  0
0.039 * * [simplify]: Extracting # 1 : cost  0
0.039 * * [simplify]: Extracting # 2 : cost  0
0.039 * * [simplify]: iteration  1 :  11  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  2 :  18  enodes  (cost  7 )
0.047 * * [simplify]: Extracting # 0 : cost  0
0.047 * * [simplify]: Extracting # 1 : cost  0
0.047 * * [simplify]: Extracting # 2 : cost  0
0.048 * * [simplify]: iteration  3 :  35  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 :  67  enodes  (cost  7 )
0.102 * * [simplify]: Extracting # 0 : cost  0
0.102 * * [simplify]: Extracting # 1 : cost  0
0.103 * * [simplify]: Extracting # 2 : cost  0
0.103 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.179 * * [simplify]: Extracting # 0 : cost  0
0.180 * * [simplify]: Extracting # 1 : cost  0
0.180 * * [simplify]: Extracting # 2 : cost  0
0.180 * * [simplify]: iteration  6 :  366  enodes  (cost  7 )
0.388 * * [simplify]: Extracting # 0 : cost  0
0.390 * * [simplify]: Extracting # 1 : cost  0
0.391 * * [simplify]: Extracting # 2 : cost  0
0.392 * * [simplify]: Extracting # 3 : cost  0
0.393 * * [simplify]: Extracting # 4 : cost  0
0.394 * * [simplify]: iteration  7 :  901  enodes  (cost  7 )
2.381 * * [simplify]: Extracting # 0 : cost  0
2.401 * * [simplify]: Extracting # 1 : cost  0
2.407 * * [simplify]: Extracting # 2 : cost  0
2.413 * * [simplify]: Extracting # 3 : cost  0
2.418 * * [simplify]: Extracting # 4 : cost  0
2.424 * * [simplify]: iteration  8 :  3866  enodes  (cost  7 )
4.177 * * [simplify]: Extracting # 0 : cost  0
4.206 * * [simplify]: Extracting # 1 : cost  0
4.214 * * [simplify]: Extracting # 2 : cost  0
4.225 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
4.225 * [simplify]: Simplified to:
  (fma a a (- (* b b)))
4.233 * * [progress]: iteration 1 / 4
4.233 * * * [progress]: picking best candidate
4.237 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
4.237 * * * [progress]: localizing error
4.251 * * * [progress]: generating rewritten candidates
4.251 * * * [progress]: generating series expansions
4.251 * * * [progress]: simplifying candidates
4.251 * [simplify]: Simplifying:
  
4.251 * * [simplify]: Extracting # 0 : cost  0
4.251 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
4.252 * * [simplify]: Extracting # 0 : cost  0
4.252 * * [simplify]: iteration done:  0  enodes  (cost  0 )
4.252 * [simplify]: Simplified to:
  
4.252 * * * [progress]: adding candidates to table
4.252 * [progress]: [Phase 3 of 3] Extracting.
4.257 * [simplify]: Simplifying:
  (- (* a a) (* b b))
4.257 * * [simplify]: Extracting # 0 : cost  0
4.257 * * [simplify]: Extracting # 1 : cost  0
4.257 * * [simplify]: Extracting # 2 : cost  0
4.257 * * [simplify]: Extracting # 3 : cost  0
4.257 * * [simplify]: Extracting # 4 : cost  0
4.257 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
4.258 * * [simplify]: Extracting # 0 : cost  0
4.258 * * [simplify]: iteration done:  5  enodes  (cost  7 )
4.258 * [simplify]: Simplified to:
  (- (* a a) (* b b))
5.651 * [regime-testing]: Baseline error score: 0.006698957682300432
5.654 * [regime-testing]: Oracle error score: 0.006698957682300432
5.655 * [regime-testing]: End program error score: 0.006698957682300432
5.732 * [regime-testing]: Target error score: 0.0008751093886735842