5.730 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.065 * * * [progress]: [2/2] Setting up program.
0.070 * [progress]: [Phase 2 of 3] Improving.
0.070 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (- (+ (- (* (* (* (* x 18.0) y) z) t) (* (* a 4.0) t)) (* b c)) (* (* x 4.0) i)) (* (* j 27.0) k))
0.071 * * [simplify]: iteration  0 :  28  enodes  (cost  31 )
0.075 * * [simplify]: iteration  1 :  67  enodes  (cost  29 )
0.085 * * [simplify]: iteration  2 :  218  enodes  (cost  27 )
0.127 * * [simplify]: iteration  3 :  726  enodes  (cost  27 )
0.348 * * [simplify]: iteration  4 :  2118  enodes  (cost  27 )