4.365 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.073 * * * [progress]: [2/2] Setting up program.
0.075 * [progress]: [Phase 2 of 3] Improving.
0.075 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (- 2.0 (sqrt (- 4.0 (pow x 2.0)))))
0.077 * * [simplify]: iteration  0 :  16  enodes  (cost  5 )
0.078 * * [simplify]: iteration  1 :  26  enodes  (cost  5 )
0.079 * * [simplify]: iteration  2 :  50  enodes  (cost  5 )
0.080 * * [simplify]: iteration  3 :  126  enodes  (cost  5 )
0.083 * * [simplify]: iteration  4 :  420  enodes  (cost  5 )
0.091 * * [simplify]: iteration  5 :  1917  enodes  (cost  5 )
0.131 * * [simplify]: iteration  6 :  5001  enodes  (cost  5 )
0.131 * [simplify]: Simplified to:
   (sqrt (- 2.0 (sqrt (- 4.0 (pow x 2.0)))))
0.131 * [progress]: [Phase 3 of 3] Extracting.
0.134 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (- 2.0 (sqrt (- 4.0 (pow x 2.0)))))
0.134 * * [simplify]: iteration  0 :  8  enodes  (cost  5 )
0.134 * [simplify]: Simplified to:
   (sqrt (- 2.0 (sqrt (- 4.0 (pow x 2.0)))))
2.498 * [regime-testing]: End program error score: 59.528606073944566