0.907 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.336 * * * [progress]: [2/2] Setting up program.
0.340 * [progress]: [Phase 2 of 3] Improving.
0.342 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (sqrt (/ (- (exp (* 2.0 x)) 1.0) (- (exp x) 1.0)))
0.345 * * [simplify]: iteration  0 :  10  enodes  (cost  12 )
0.349 * * [simplify]: iteration  1 :  19  enodes  (cost  12 )
0.351 * * [simplify]: iteration  2 :  28  enodes  (cost  12 )
0.354 * * [simplify]: iteration  3 :  40  enodes  (cost  12 )
0.369 * * [simplify]: iteration  4 :  74  enodes  (cost  12 )
0.381 * * [simplify]: iteration  5 :  171  enodes  (cost  12 )
0.414 * * [simplify]: iteration  6 :  482  enodes  (cost  12 )