Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:59 2013

Optimize a model with 520 rows, 5180 columns and 16440 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.02s
Presolved: 500 rows, 5160 columns, 15420 nonzeros
Variable types: 5040 continuous, 120 integer (120 binary)

Root relaxation: objective 3.600389e+04, 441 iterations, 0.01 seconds

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

     0     0 36003.8892    0    6          - 36003.8892     -      -    0s
     0     0 36012.3178    0    6          - 36012.3178     -      -    0s
     0     0 36016.3510    0    7          - 36016.3510     -      -    0s
     0     0 36016.7708    0    8          - 36016.7708     -      -    0s
     0     0 36017.4547    0    8          - 36017.4547     -      -    0s
     0     0 36017.5150    0    8          - 36017.5150     -      -    0s
     0     0 36017.6124    0    8          - 36017.6124     -      -    0s
     0     0 36017.6406    0    8          - 36017.6406     -      -    0s
     0     0 36017.9004    0    7          - 36017.9004     -      -    0s
     0     0 36017.9004    0    7          - 36017.9004     -      -    0s
H    0     0                    36320.235402 36017.9004  0.83%     -    0s
     0     1 36194.4213    0    6 36320.2354 36194.4213  0.35%     -    0s
*    6     5               6    36202.381588 36195.5381  0.02%  26.7    0s

Cutting planes:
  Flow cover: 7

Explored 10 nodes (875 simplex iterations) in 0.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.620238158816e+04, best bound 3.619976036597e+04, gap 0.0072%