Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:53:38 2013

Optimize a model with 640 rows, 14240 columns and 118620 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.28s
Presolved: 620 rows, 14220 columns, 108600 nonzeros
Variable types: 14040 continuous, 180 integer (180 binary)

Root relaxation: objective 3.600389e+04, 519 iterations, 0.02 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 36004.7322    0    6          - 36004.7322     -      -    0s
     0     0 36004.9514    0    7          - 36004.9514     -      -    0s
     0     0 36004.9716    0    7          - 36004.9716     -      -    0s
     0     0 36004.9716    0    7          - 36004.9716     -      -    0s
     0     2 36006.0551    0    7          - 36006.0551     -      -    1s
*   13     7              13    36202.402486 36051.3915  0.42%  10.4    2s

Cutting planes:
  Flow cover: 6

Explored 31 nodes (893 simplex iterations) in 2.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.620240248627e+04, best bound 3.619933926568e+04, gap 0.0085%