Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:58 2013

Optimize a model with 480 rows, 4640 columns and 9620 nonzeros
Presolve removed 40 rows and 60 columns
Presolve time: 0.02s
Presolved: 440 rows, 4580 columns, 9160 nonzeros
Variable types: 4400 continuous, 180 integer (180 binary)

Root relaxation: objective 3.573401e+04, 410 iterations, 0.01 seconds

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

     0     0 35734.0139    0    3          - 35734.0139     -      -    0s
     0     0 35761.3007    0    3          - 35761.3007     -      -    0s
     0     0 35763.4203    0    3          - 35763.4203     -      -    0s
     0     0 35769.5566    0    3          - 35769.5566     -      -    0s
     0     0 35770.6097    0    3          - 35770.6097     -      -    0s
     0     0 35772.6488    0    3          - 35772.6488     -      -    0s
     0     0 35776.8799    0    3          - 35776.8799     -      -    0s
     0     0 35777.2299    0    3          - 35777.2299     -      -    0s
     0     0 35777.2928    0    3          - 35777.2928     -      -    0s
     0     0 35777.3035    0    3          - 35777.3035     -      -    0s
     0     0 35777.3035    0    3          - 35777.3035     -      -    0s
H    0     0                    36173.213881 35777.3035  1.09%     -    0s
     0     2 35795.2827    0    3 36173.2139 35795.2827  1.04%     -    0s

Cutting planes:
  Flow cover: 18

Explored 31 nodes (1162 simplex iterations) in 0.49 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.617321388123e+04, best bound 3.617321388123e+04, gap 0.0%