4.791 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.046 * * * [progress]: [2/2] Setting up program.
0.048 * [progress]: [Phase 2 of 3] Improving.
0.048 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (- (pow x 4.0) 1.0))
0.050 * * [simplify]: iteration  0 :  12  enodes  (cost  3 )
0.051 * * [simplify]: iteration  1 :  18  enodes  (cost  3 )
0.052 * * [simplify]: iteration  2 :  35  enodes  (cost  3 )
0.053 * * [simplify]: iteration  3 :  81  enodes  (cost  3 )
0.055 * * [simplify]: iteration  4 :  246  enodes  (cost  3 )
0.060 * * [simplify]: iteration  5 :  1239  enodes  (cost  3 )
0.084 * * [simplify]: iteration  6 :  4918  enodes  (cost  3 )
0.208 * * [simplify]: iteration  7 :  5002  enodes  (cost  3 )
0.208 * [simplify]: Simplified to:
   (sqrt (- (pow x 4.0) 1.0))
0.209 * [progress]: [Phase 3 of 3] Extracting.
0.211 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (- (pow x 4.0) 1.0))
0.212 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
0.212 * [simplify]: Simplified to:
   (sqrt (- (pow x 4.0) 1.0))
1.915 * [regime-testing]: End program error score: 32.352669083635455