2.327 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.022 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ x (* y (/ (- z t) (- z a))))
0.023 * * [simplify]: iteration  0 :  10  enodes  (cost  11 )
0.025 * * [simplify]: iteration  1 :  21  enodes  (cost  11 )
0.027 * * [simplify]: iteration  2 :  36  enodes  (cost  10 )
0.031 * * [simplify]: iteration  3 :  59  enodes  (cost  10 )
0.039 * * [simplify]: iteration  4 :  96  enodes  (cost  10 )
0.054 * * [simplify]: iteration  5 :  151  enodes  (cost  10 )
0.075 * * [simplify]: iteration  6 :  209  enodes  (cost  10 )
0.103 * * [simplify]: iteration  7 :  235  enodes  (cost  10 )
0.137 * * [simplify]: iteration  8 :  287  enodes  (cost  10 )
0.176 * * [simplify]: iteration  9 :  329  enodes  (cost  10 )
0.223 * * [simplify]: iteration  10 :  415  enodes  (cost  10 )