1.870 * [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 :  16  enodes  (cost  9 )
0.027 * * [simplify]: iteration  2 :  32  enodes  (cost  9 )
0.030 * * [simplify]: iteration  3 :  67  enodes  (cost  9 )
0.042 * * [simplify]: iteration  4 :  148  enodes  (cost  9 )
0.064 * * [simplify]: iteration  5 :  256  enodes  (cost  8 )
0.115 * * [simplify]: iteration  6 :  369  enodes  (cost  8 )
0.195 * * [simplify]: iteration  7 :  523  enodes  (cost  8 )
0.315 * * [simplify]: iteration  8 :  591  enodes  (cost  8 )