Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:11:53 2013

Optimize a model with 1400 rows, 38250 columns and 150750 nonzeros
Presolve removed 50 rows and 2850 columns
Presolve time: 0.21s
Presolved: 1350 rows, 35400 columns, 140750 nonzeros
Variable types: 35050 continuous, 350 integer (350 binary)

Root relaxation: objective 1.749223e+05, 2141 iterations, 0.09 seconds

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

     0     0 174922.321    0    8          - 174922.321     -      -    0s
     0     0 174930.478    0    8          - 174930.478     -      -    0s
     0     0 174933.535    0    8          - 174933.535     -      -    0s
     0     0 174933.535    0    8          - 174933.535     -      -    0s
     0     0 174933.535    0    8          - 174933.535     -      -    0s
     0     0 174933.535    0    8          - 174933.535     -      -    1s
     0     2 174938.074    0    8          - 174938.074     -      -    2s
*  106    97             105    176645.73162 174991.329  0.94%  10.8    4s
   161   135 175744.127   14    1 176645.732 175065.534  0.89%  13.8    5s
*  219   136              25    176378.92591 175097.603  0.73%  13.9    6s
*  248   108              20    176210.41881 175134.245  0.61%  14.0    6s
   591    14 176129.759   30    3 176210.419 176129.759  0.05%  16.0   10s

Cutting planes:
  Flow cover: 5

Explored 604 nodes (12421 simplex iterations) in 10.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.762104188093e+05, best bound 1.761938965051e+05, gap 0.0094%