0.507 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.098 * * * [progress]: [2/2] Setting up program.
0.100 * [progress]: [Phase 2 of 3] Improving.
0.101 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.102 * * [simplify]: iteration  0 :  7  enodes  (cost  13 )
0.102 * * [simplify]: iteration  1 :  15  enodes  (cost  13 )
0.105 * * [simplify]: iteration  2 :  25  enodes  (cost  13 )
0.107 * * [simplify]: iteration  3 :  31  enodes  (cost  13 )
0.110 * * [simplify]: iteration  4 :  42  enodes  (cost  13 )
0.115 * * [simplify]: iteration  5 :  53  enodes  (cost  13 )
0.119 * * [simplify]: iteration  6 :  60  enodes  (cost  13 )
0.127 * * [simplify]: iteration  7 :  111  enodes  (cost  13 )
0.148 * * [simplify]: iteration  8 :  155  enodes  (cost  13 )
0.179 * * [simplify]: iteration  9 :  213  enodes  (cost  13 )
0.239 * * [simplify]: iteration  10 :  325  enodes  (cost  13 )
0.355 * * [simplify]: iteration  11 :  487  enodes  (cost  13 )