0.457 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.018 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- x (* y z)) (- t (* a z)))
0.021 * * [simplify]: iteration  0 :  10  enodes  (cost  11 )
0.023 * * [simplify]: iteration  1 :  19  enodes  (cost  11 )
0.025 * * [simplify]: iteration  2 :  38  enodes  (cost  11 )
0.029 * * [simplify]: iteration  3 :  52  enodes  (cost  11 )
0.035 * * [simplify]: iteration  4 :  80  enodes  (cost  11 )
0.044 * * [simplify]: iteration  5 :  108  enodes  (cost  11 )
0.061 * * [simplify]: iteration  6 :  152  enodes  (cost  11 )
0.081 * * [simplify]: iteration  7 :  330  enodes  (cost  11 )