2.084 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ x (/ (* y (- z t)) a))
0.024 * * [simplify]: iteration  0 :  9  enodes  (cost  9 )
0.025 * * [simplify]: iteration  1 :  15  enodes  (cost  9 )
0.027 * * [simplify]: iteration  2 :  26  enodes  (cost  9 )
0.030 * * [simplify]: iteration  3 :  46  enodes  (cost  9 )
0.035 * * [simplify]: iteration  4 :  78  enodes  (cost  9 )
0.050 * * [simplify]: iteration  5 :  116  enodes  (cost  9 )
0.067 * * [simplify]: iteration  6 :  134  enodes  (cost  9 )
0.087 * * [simplify]: iteration  7 :  150  enodes  (cost  9 )
0.113 * * [simplify]: iteration  8 :  184  enodes  (cost  9 )
0.143 * * [simplify]: iteration  9 :  250  enodes  (cost  9 )