72.272 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.026 * [progress]: [Phase 2 of 3] Improving.
0.027 * [simplify]: Simplifying:
  (- (+ x y) x)
0.027 * * [simplify]: Extracting # 0 : cost  0
0.027 * * [simplify]: Extracting # 1 : cost  0
0.027 * * [simplify]: Extracting # 2 : cost  0
0.027 * * [simplify]: Extracting # 3 : cost  0
0.027 * * [simplify]: Extracting # 4 : cost  0
0.027 * * [simplify]: iteration  0 :  4  enodes  (cost  5 )
0.028 * * [simplify]: Extracting # 0 : cost  0
0.028 * * [simplify]: Extracting # 1 : cost  0
0.028 * * [simplify]: Extracting # 2 : cost  0
0.028 * * [simplify]: iteration  1 :  9  enodes  (cost  5 )
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  2 :  17  enodes  (cost  5 )
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  3 :  25  enodes  (cost  3 )
0.039 * * [simplify]: Extracting # 0 : cost  0
0.039 * * [simplify]: Extracting # 1 : cost  0
0.039 * * [simplify]: iteration  4 :  27  enodes  (cost  1 )
0.041 * * [simplify]: Extracting # 0 : cost  0
0.041 * * [simplify]: iteration done:  27  enodes  (cost  1 )
0.041 * [simplify]: Simplified to:
  y
0.045 * * [progress]: iteration 1 / 4
0.045 * * * [progress]: picking best candidate
0.046 * * * * [pick]: Picked  #<alt (λ (x y) y)>
0.046 * * * [progress]: localizing error
0.047 * * * [progress]: generating rewritten candidates
0.047 * * * [progress]: generating series expansions
0.047 * * * [progress]: simplifying candidates
0.047 * [simplify]: Simplifying:
  
0.047 * * [simplify]: Extracting # 0 : cost  0
0.047 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.047 * * [simplify]: Extracting # 0 : cost  0
0.047 * * [simplify]: iteration done:  0  enodes  (cost  0 )
0.047 * [simplify]: Simplified to:
  
0.047 * * * [progress]: adding candidates to table
0.048 * [progress]: [Phase 3 of 3] Extracting.
0.049 * [simplify]: Simplifying:
  y
0.049 * * [simplify]: Extracting # 0 : cost  0
0.049 * * [simplify]: Extracting # 1 : cost  0
0.049 * * [simplify]: iteration  0 :  1  enodes  (cost  1 )
0.049 * * [simplify]: Extracting # 0 : cost  0
0.049 * * [simplify]: iteration done:  1  enodes  (cost  1 )
0.049 * [simplify]: Simplified to:
  y
0.936 * [regime-testing]: Baseline error score: 0
0.939 * [regime-testing]: Oracle error score: 0
0.939 * [regime-testing]: End program error score: 0
0.968 * [regime-testing]: Target error score: 0