Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:24:21 2013

Optimize a model with 1870 rows, 289170 columns and 578170 nonzeros
Presolve time: 1.08s
Presolved: 1870 rows, 289170 columns, 578170 nonzeros
Variable types: 289000 continuous, 170 integer (170 binary)

Root relaxation: objective 2.880379e+05, 9037 iterations, 0.85 seconds

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

     0     0 288037.917    0    5          - 288037.917     -      -    2s
H    0     0                    298060.00000 288037.917  3.36%     -    3s
H    0     0                    289808.00000 288037.917  0.61%     -    3s
     0     0 288138.866    0    5 289808.000 288138.866  0.58%     -    4s
     0     0 288138.866    0    5 289808.000 288138.866  0.58%     -    5s
     0     0 288138.866    0    5 289808.000 288138.866  0.58%     -    6s
     0     0 288160.936    0    4 289808.000 288160.936  0.57%     -    6s
     0     0 288162.266    0    2 289808.000 288162.266  0.57%     -    7s
     0     0 288162.266    0    2 289808.000 288162.266  0.57%     -    7s
     0     2 288191.765    0    2 289808.000 288191.765  0.56%     -    8s
     8    10 288410.852    7    3 289808.000 288264.593  0.53%  99.2   10s
*   16    11              15    288759.00000 288264.593  0.17%  82.4   10s
*   37    13               8    288644.00000 288342.653  0.10%  86.7   12s
*   42    11               8    288624.00000 288342.653  0.10%  81.5   13s
*   47     7               7    288540.00000 288360.383  0.06%  80.1   13s

Cutting planes:
  Implied bound: 93
  Flow cover: 3

Explored 69 nodes (20218 simplex iterations) in 14.67 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.885400000000e+05, best bound 2.885400000000e+05, gap 0.0%