Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:20 2013

Optimize a model with 128 rows, 344 columns and 882 nonzeros
Presolve removed 114 rows and 307 columns
Presolve time: 0.00s
Presolved: 14 rows, 37 columns, 74 nonzeros
Variable types: 29 continuous, 8 integer (8 binary)

Root relaxation: objective 5.420106e+03, 5 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                    5441.6157041 5420.10604  0.40%     -    0s
     0     0 5441.60959    0    3 5441.61570 5441.60959  0.00%     -    0s

Cutting planes:
  Cover: 1
  Flow cover: 1

Explored 0 nodes (10 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.441615704089e+03, best bound 5.441609585760e+03, gap 0.0001%