Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:11:57 2013

Optimize a model with 575 rows, 225 columns and 1800 nonzeros
Presolve removed 172 rows and 118 columns
Presolve time: 0.00s
Presolved: 403 rows, 107 columns, 1292 nonzeros
Variable types: 7 continuous, 100 integer (100 binary)
Found heuristic solution: objective 3853.0000000

Root relaxation: objective 2.854286e+03, 13 iterations, 0.00 seconds

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

     0     0 2854.28571    0    5 3853.00000 2854.28571  25.9%     -    0s
     0     0 2855.95701    0   10 3853.00000 2855.95701  25.9%     -    0s
H    0     0                    2860.0000000 2855.95701  0.14%     -    0s
     0     0 2857.58447    0   11 2860.00000 2857.58447  0.08%     -    0s
     0     0 2857.58447    0    5 2860.00000 2857.58447  0.08%     -    0s
     0     0 2858.11806    0   10 2860.00000 2858.11806  0.07%     -    0s
     0     0     cutoff    0      2860.00000 2859.00286  0.03%     -    0s

Cutting planes:
  Cover: 2
  Implied bound: 2
  Clique: 1
  MIR: 7

Explored 0 nodes (52 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.860000000000e+03, best bound 2.860000000000e+03, gap 0.0%