15.133 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.069 * * * [progress]: [2/2] Setting up program.
0.072 * [progress]: [Phase 2 of 3] Improving.
0.072 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ a (log (+ 1.0 (exp (- b a)))))
0.075 * * [simplify]: iteration  0 :  15  enodes  (cost  5 )
0.076 * * [simplify]: iteration  1 :  18  enodes  (cost  5 )
0.077 * * [simplify]: iteration  2 :  21  enodes  (cost  5 )
0.078 * * [simplify]: iteration  3 :  27  enodes  (cost  5 )
0.079 * * [simplify]: iteration  4 :  37  enodes  (cost  5 )
0.080 * * [simplify]: iteration  5 :  98  enodes  (cost  5 )
0.082 * * [simplify]: iteration  6 :  145  enodes  (cost  5 )
0.083 * * [simplify]: iteration  7 :  243  enodes  (cost  5 )
0.086 * * [simplify]: iteration  8 :  427  enodes  (cost  5 )
0.092 * * [simplify]: iteration  9 :  995  enodes  (cost  5 )
0.144 * * [simplify]: iteration  10 :  5002  enodes  (cost  5 )
0.145 * [simplify]: Simplified to:
   (+ a (log (+ 1.0 (exp (- b a)))))
0.145 * [progress]: [Phase 3 of 3] Extracting.
0.151 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ a (log (+ 1.0 (exp (- b a)))))
0.151 * * [simplify]: iteration  0 :  10  enodes  (cost  5 )
0.152 * * [simplify]: iteration  1 :  10  enodes  (cost  5 )
0.152 * [simplify]: Simplified to:
   (+ a (log (+ 1.0 (exp (- b a)))))
1.898 * [regime-testing]: End program error score: 0.590162933519466