Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:27 2013

Optimize a model with 488 rows, 420 columns and 1644 nonzeros
Presolve removed 6 rows and 0 columns
Presolve time: 0.00s
Presolved: 482 rows, 420 columns, 1638 nonzeros
Variable types: 414 continuous, 6 integer (6 binary)

Root relaxation: objective 8.890647e+03, 30 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 8890.64706    0    2          - 8890.64706     -      -    0s
H    0     0                    8957.0000000 8890.64706  0.74%     -    0s
     0     0     cutoff    0      8957.00000 8957.00000   0.0%     -    0s

Cutting planes:
  Implied bound: 2

Explored 0 nodes (32 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.957000000000e+03, best bound 8.957000000000e+03, gap 0.0%