Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:41:33 2013

Optimize a model with 935 rows, 72335 columns and 144585 nonzeros
Presolve time: 0.11s
Presolved: 935 rows, 72335 columns, 144585 nonzeros
Variable types: 72250 continuous, 85 integer (85 binary)

Root relaxation: objective 9.671744e+04, 2635 iterations, 0.10 seconds

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

     0     0 96717.4427    0    7          - 96717.4427     -      -    0s
H    0     0                    98690.000000 96717.4427  2.00%     -    0s
H    0     0                    97509.000000 96717.4427  0.81%     -    0s
     0     0 96949.9668    0    4 97509.0000 96949.9668  0.57%     -    0s
     0     0 96949.9668    0    7 97509.0000 96949.9668  0.57%     -    0s
     0     0 96951.6078    0    4 97509.0000 96951.6078  0.57%     -    1s
     0     0 96976.4020    0    4 97509.0000 96976.4020  0.55%     -    1s
     0     0 96986.9481    0    3 97509.0000 96986.9481  0.54%     -    1s
     0     0 96991.1987    0    4 97509.0000 96991.1987  0.53%     -    1s
     0     0 96991.2163    0    3 97509.0000 96991.2163  0.53%     -    1s
     0     0 96991.2163    0    3 97509.0000 96991.2163  0.53%     -    1s
     0     0 96991.2163    0    3 97509.0000 96991.2163  0.53%     -    1s
     0     0 96991.5074    0    2 97509.0000 96991.5074  0.53%     -    1s
     0     2 97024.7430    0    2 97509.0000 97024.7430  0.50%     -    2s
H    3     2                    97391.764706 97123.4510  0.28%  77.7    2s
H    4     3                    97142.000000 97123.9535  0.02%  75.2    2s

Cutting planes:
  Implied bound: 57
  Flow cover: 5

Explored 9 nodes (6254 simplex iterations) in 2.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.714200000000e+04, best bound 9.713615665415e+04, gap 0.0060%