6.697 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.071 * * * [progress]: [2/2] Setting up program.
0.074 * [progress]: [Phase 2 of 3] Improving.
0.074 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (sqrt (- x y)) (sqrt (- (- x y) 1.0)))
0.076 * * [simplify]: iteration  0 :  16  enodes  (cost  6 )
0.077 * * [simplify]: iteration  1 :  28  enodes  (cost  6 )
0.078 * * [simplify]: iteration  2 :  44  enodes  (cost  6 )
0.079 * * [simplify]: iteration  3 :  55  enodes  (cost  6 )
0.080 * * [simplify]: iteration  4 :  88  enodes  (cost  6 )
0.081 * * [simplify]: iteration  5 :  103  enodes  (cost  6 )
0.083 * * [simplify]: iteration  6 :  131  enodes  (cost  6 )
0.084 * * [simplify]: iteration  7 :  211  enodes  (cost  6 )
0.085 * * [simplify]: iteration  8 :  242  enodes  (cost  6 )
0.087 * * [simplify]: iteration  9 :  242  enodes  (cost  6 )
0.087 * [simplify]: Simplified to:
   (- (sqrt (- x y)) (sqrt (- (- x y) 1.0)))
0.087 * [progress]: [Phase 3 of 3] Extracting.
0.090 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (sqrt (- x y)) (sqrt (- (- x y) 1.0)))
0.090 * * [simplify]: iteration  0 :  8  enodes  (cost  6 )
0.090 * [simplify]: Simplified to:
   (- (sqrt (- x y)) (sqrt (- (- x y) 1.0)))
2.260 * [regime-testing]: End program error score: 60.27128173131579