5.536 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.058 * * * [progress]: [2/2] Setting up program.
0.061 * [progress]: [Phase 2 of 3] Improving.
0.061 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (exp (* x (log (/ x (+ x y))))) x)
0.062 * * [simplify]: iteration  0 :  8  enodes  (cost  11 )
0.063 * * [simplify]: iteration  1 :  15  enodes  (cost  11 )
0.064 * * [simplify]: iteration  2 :  24  enodes  (cost  9 )
0.067 * * [simplify]: iteration  3 :  51  enodes  (cost  9 )
0.074 * * [simplify]: iteration  4 :  109  enodes  (cost  9 )
0.089 * * [simplify]: iteration  5 :  259  enodes  (cost  9 )
0.135 * * [simplify]: iteration  6 :  621  enodes  (cost  9 )