Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:44 2013

Optimize a model with 60 rows, 1084 columns and 8914 nonzeros
Presolve removed 22 rows and 248 columns
Presolve time: 0.03s
Presolved: 38 rows, 836 columns, 8070 nonzeros
Variable types: 820 continuous, 16 integer (16 binary)

Root relaxation: objective 5.784077e+03, 17 iterations, 0.00 seconds

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

     0     0 5784.07688    0    5          - 5784.07688     -      -    0s
     0     0 5787.69761    0    5          - 5787.69761     -      -    0s
     0     0 5804.89073    0    9          - 5804.89073     -      -    0s
     0     0 5809.73363    0    4          - 5809.73363     -      -    0s
     0     0 5809.73363    0    4          - 5809.73363     -      -    0s
H    0     0                    5824.1847000 5809.73363  0.25%     -    0s
     0     0 5809.73363    0    4 5824.18470 5809.73363  0.25%     -    0s
     0     0 5809.79258    0    7 5824.18470 5809.79258  0.25%     -    0s
     0     0 5809.80665    0    7 5824.18470 5809.80665  0.25%     -    0s
     0     0 5809.80701    0    7 5824.18470 5809.80701  0.25%     -    0s
     0     2 5809.92570    0    7 5824.18470 5809.92570  0.24%     -    0s
*   11     7              10    5815.5329466 5811.10009  0.08%   3.3    0s
*   12     6              10    5814.7664612 5811.10009  0.06%   3.1    0s
*   20     5               5    5812.3255371 5811.40667  0.02%   2.4    0s

Cutting planes:
  Gomory: 1
  Implied bound: 1
  Flow cover: 4

Explored 27 nodes (172 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812325537147e+03, best bound 5.811805004273e+03, gap 0.0090%