Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:46:35 2013

Optimize a model with 814 rows, 54834 columns and 109594 nonzeros
Presolve time: 0.08s
Presolved: 814 rows, 54834 columns, 109594 nonzeros
Variable types: 54760 continuous, 74 integer (74 binary)

Root relaxation: objective 8.900354e+04, 2055 iterations, 0.07 seconds

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

     0     0 89003.5386    0    8          - 89003.5386     -      -    0s
H    0     0                    90300.000000 89003.5386  1.44%     -    0s
     0     0 89272.4420    0    5 90300.0000 89272.4420  1.14%     -    0s
H    0     0                    89348.000000 89272.4420  0.08%     -    0s
     0     0 89313.0460    0    3 89348.0000 89313.0460  0.04%     -    0s
     0     0 89313.0460    0    8 89348.0000 89313.0460  0.04%     -    0s
     0     0 89313.0460    0    5 89348.0000 89313.0460  0.04%     -    0s
     0     0 89313.0460    0    3 89348.0000 89313.0460  0.04%     -    0s
     0     0 89313.9026    0    6 89348.0000 89313.9026  0.04%     -    0s
     0     0 89315.5658    0    6 89348.0000 89315.5658  0.04%     -    0s
     0     0 89319.1758    0    4 89348.0000 89319.1758  0.03%     -    1s
     0     0 89319.1758    0    4 89348.0000 89319.1758  0.03%     -    1s
     0     0 89319.1758    0    4 89348.0000 89319.1758  0.03%     -    1s
     0     0 89319.7034    0    4 89348.0000 89319.7034  0.03%     -    1s
     0     0 89331.0070    0    3 89348.0000 89331.0070  0.02%     -    1s
     0     0 89339.8874    0    3 89348.0000 89339.8874  0.01%     -    1s

Cutting planes:
  Implied bound: 94
  Flow cover: 2

Explored 0 nodes (4484 simplex iterations) in 1.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.934800000000e+04, best bound 8.933988737078e+04, gap 0.0091%