0.633 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.093 * * * [progress]: [2/2] Setting up program.
0.095 * [progress]: [Phase 2 of 3] Improving.
0.095 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- (exp x) (exp (- x))) (+ (exp x) (exp (- x))))
0.096 * * [simplify]: iteration  0 :  7  enodes  (cost  13 )
0.097 * * [simplify]: iteration  1 :  15  enodes  (cost  13 )
0.099 * * [simplify]: iteration  2 :  25  enodes  (cost  13 )
0.102 * * [simplify]: iteration  3 :  31  enodes  (cost  13 )
0.105 * * [simplify]: iteration  4 :  42  enodes  (cost  13 )
0.115 * * [simplify]: iteration  5 :  56  enodes  (cost  13 )
0.120 * * [simplify]: iteration  6 :  68  enodes  (cost  13 )
0.130 * * [simplify]: iteration  7 :  129  enodes  (cost  13 )
0.149 * * [simplify]: iteration  8 :  186  enodes  (cost  13 )
0.192 * * [simplify]: iteration  9 :  245  enodes  (cost  13 )
0.261 * * [simplify]: iteration  10 :  418  enodes  (cost  13 )
0.440 * * [simplify]: iteration  11 :  726  enodes  (cost  13 )