Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:26:42 2013

Optimize a model with 1980 rows, 324180 columns and 648180 nonzeros
Presolve time: 0.86s
Presolved: 1980 rows, 324180 columns, 648180 nonzeros
Variable types: 324000 continuous, 180 integer (180 binary)

Root relaxation: objective 3.044907e+05, 10158 iterations, 1.07 seconds

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

     0     0 304490.707    0    7          - 304490.707     -      -    2s
H    0     0                    329521.00000 304490.707  7.60%     -    3s
H    0     0                    306703.00000 304490.707  0.72%     -    4s
     0     0 304996.746    0    7 306703.000 304996.746  0.56%     -    5s
     0     0 304996.746    0    7 306703.000 304996.746  0.56%     -    6s
     0     0 304997.191    0    7 306703.000 304997.191  0.56%     -    7s
     0     0 305041.971    0    5 306703.000 305041.971  0.54%     -    8s
     0     0 305056.350    0    5 306703.000 305056.350  0.54%     -    8s
     0     0 305088.532    0    5 306703.000 305088.532  0.53%     -    8s
     0     0 305102.354    0    7 306703.000 305102.354  0.52%     -    9s
     0     0 305105.233    0    5 306703.000 305105.233  0.52%     -    9s
     0     0 305108.153    0    5 306703.000 305108.153  0.52%     -    9s
     0     0 305110.046    0    5 306703.000 305110.046  0.52%     -   10s
     0     0 305112.655    0    5 306703.000 305112.655  0.52%     -   10s
     0     0 305114.998    0    5 306703.000 305114.998  0.52%     -   10s
     0     0 305114.998    0    5 306703.000 305114.998  0.52%     -   10s
     0     0 305114.998    0    5 306703.000 305114.998  0.52%     -   11s
     0     0 305114.998    0    5 306703.000 305114.998  0.52%     -   11s
     0     2 305115.418    0    5 306703.000 305115.418  0.52%     -   12s
    10    12 305384.301    9    2 306703.000 305299.190  0.46%   177   15s
H   12     9                    305426.00000 305299.190  0.04%   149   15s
*   14     6              13    305412.00000 305299.190  0.04%   131   15s

Cutting planes:
  Implied bound: 166
  Flow cover: 9

Explored 20 nodes (19719 simplex iterations) in 15.67 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.054120000000e+05, best bound 3.053973250000e+05, gap 0.0048%