0.286 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.022 * * * [progress]: [2/2] Setting up program.
0.024 * [progress]: [Phase 2 of 3] Improving.
0.025 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ x (* y (/ (- z t) (- a t))))
0.025 * * [simplify]: iteration  0 :  10  enodes  (cost  11 )
0.027 * * [simplify]: iteration  1 :  20  enodes  (cost  11 )
0.029 * * [simplify]: iteration  2 :  33  enodes  (cost  11 )
0.033 * * [simplify]: iteration  3 :  54  enodes  (cost  11 )
0.040 * * [simplify]: iteration  4 :  86  enodes  (cost  11 )
0.051 * * [simplify]: iteration  5 :  128  enodes  (cost  11 )
0.072 * * [simplify]: iteration  6 :  162  enodes  (cost  11 )
0.098 * * [simplify]: iteration  7 :  181  enodes  (cost  11 )
0.128 * * [simplify]: iteration  8 :  206  enodes  (cost  11 )
0.162 * * [simplify]: iteration  9 :  241  enodes  (cost  11 )
0.199 * * [simplify]: iteration  10 :  307  enodes  (cost  11 )