0.273 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [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 )
0.024 * * [simplify]: iteration  1 :  21  enodes  (cost  11 )
0.026 * * [simplify]: iteration  2 :  34  enodes  (cost  11 )
0.031 * * [simplify]: iteration  3 :  55  enodes  (cost  11 )
0.038 * * [simplify]: iteration  4 :  87  enodes  (cost  11 )
0.050 * * [simplify]: iteration  5 :  127  enodes  (cost  11 )
0.072 * * [simplify]: iteration  6 :  161  enodes  (cost  11 )
0.096 * * [simplify]: iteration  7 :  179  enodes  (cost  11 )
0.126 * * [simplify]: iteration  8 :  205  enodes  (cost  11 )
0.160 * * [simplify]: iteration  9 :  239  enodes  (cost  11 )
0.198 * * [simplify]: iteration  10 :  305  enodes  (cost  11 )