18.180 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.039 * * * [progress]: [2/2] Setting up program.
0.041 * [progress]: [Phase 2 of 3] Improving.
0.042 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (* (cosh x) (/ y x)) z)
0.043 * * [simplify]: iteration  0 :  7  enodes  (cost  8 )
0.043 * * [simplify]: iteration  1 :  18  enodes  (cost  8 )
0.045 * * [simplify]: iteration  2 :  40  enodes  (cost  8 )
0.051 * * [simplify]: iteration  3 :  99  enodes  (cost  8 )
0.067 * * [simplify]: iteration  4 :  215  enodes  (cost  8 )
0.095 * * [simplify]: iteration  5 :  382  enodes  (cost  8 )
0.164 * * [simplify]: iteration  6 :  678  enodes  (cost  8 )