3.444 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.046 * * * [progress]: [2/2] Setting up program.
0.049 * [progress]: [Phase 2 of 3] Improving.
0.049 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (sqrt a) (sqrt b))
0.051 * * [simplify]: iteration  0 :  7  enodes  (cost  3 )
0.053 * * [simplify]: iteration  1 :  8  enodes  (cost  3 )
0.054 * * [simplify]: iteration  2 :  8  enodes  (cost  3 )
0.054 * [simplify]: Simplified to:
   (- (sqrt a) (sqrt b))
0.055 * [progress]: [Phase 3 of 3] Extracting.
0.057 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (sqrt a) (sqrt b))
0.058 * * [simplify]: iteration  0 :  5  enodes  (cost  3 )
0.058 * [simplify]: Simplified to:
   (- (sqrt a) (sqrt b))
1.696 * [regime-testing]: End program error score: 0.02895637599649534