3.739 * [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 x)))
0.024 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.026 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.027 * * [simplify]: iteration  2 :  30  enodes  (cost  8 )
0.032 * * [simplify]: iteration  3 :  77  enodes  (cost  8 )
0.044 * * [simplify]: iteration  4 :  209  enodes  (cost  8 )
0.089 * * [simplify]: iteration  5 :  525  enodes  (cost  8 )