Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:39 2013

Optimize a model with 828 rows, 844 columns and 3282 nonzeros
Presolve removed 770 rows and 779 columns
Presolve time: 0.01s
Presolved: 58 rows, 65 columns, 182 nonzeros
Variable types: 39 continuous, 26 integer (26 binary)

Root relaxation: objective 5.420106e+03, 29 iterations, 0.00 seconds

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

     0     0 5420.10604    0    1          - 5420.10604     -      -    0s
H    0     0                    5441.6175271 5420.10604  0.40%     -    0s
     0     0     cutoff    0      5441.61753 5441.61753   0.0%     -    0s

Cutting planes:
  Implied bound: 1
  Flow cover: 2

Explored 0 nodes (42 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.441617527064e+03, best bound 5.441617527064e+03, gap 0.0%