Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:13:46 2013

Optimize a model with 1400 rows, 30500 columns and 96250 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.13s
Presolved: 1350 rows, 30450 columns, 91200 nonzeros
Variable types: 30100 continuous, 350 integer (350 binary)

Root relaxation: objective 1.959342e+05, 2508 iterations, 0.08 seconds

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

     0     0 195934.242    0    9          - 195934.242     -      -    0s
     0     0 195952.885    0    9          - 195952.885     -      -    0s
     0     0 195953.945    0   11          - 195953.945     -      -    0s
     0     0 195953.945    0   11          - 195953.945     -      -    0s
     0     0 195953.945    0   11          - 195953.945     -      -    0s
     0     2 195982.105    0   11          - 195982.105     -      -    1s
*   37    12              35    196588.54354 196026.068  0.29%  22.3    3s
*   64     9               9    196570.65000 196256.278  0.16%  32.8    3s
*   91    13              29    196565.57890 196548.204  0.01%  26.2    3s

Cutting planes:
  Flow cover: 7

Explored 92 nodes (5261 simplex iterations) in 3.82 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.965655788974e+05, best bound 1.965482036932e+05, gap 0.0088%