Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:38:41 2013

Optimize a model with 73185 rows, 72335 columns and 289085 nonzeros
Presolve removed 2655 rows and 0 columns
Presolve time: 0.47s
Presolved: 70530 rows, 72335 columns, 283775 nonzeros
Variable types: 72250 continuous, 85 integer (85 binary)

Root relaxation: objective 9.248174e+04, 14395 iterations, 4.05 seconds

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

     0     0 92481.7353    0    4          - 92481.7353     -      -    4s
H    0     0                    95676.000000 92481.7353  3.34%     -    5s
     0     0 92483.2189    0    5 95676.0000 92483.2189  3.34%     -    5s
     0     0 92483.7955    0    5 95676.0000 92483.7955  3.34%     -    6s
     0     0 92483.7955    0    5 95676.0000 92483.7955  3.34%     -    6s
H    0     0                    93303.000000 92483.7955  0.88%     -    8s
     0     0 92483.7955    0    4 93303.0000 92483.7955  0.88%     -   13s
     0     0 92483.7955    0    5 93303.0000 92483.7955  0.88%     -   13s
     0     0 92483.7955    0    5 93303.0000 92483.7955  0.88%     -   14s
     0     2 92490.9424    0    5 93303.0000 92490.9424  0.87%     -   16s
H    6     6                    92976.934426 92718.6492  0.28%   116   16s
H    7     5                    92896.490231 92718.6492  0.19%   104   16s
H   14     8                    92879.238095 92718.6492  0.17%  83.5   17s
*   16    10              14    92825.000000 92718.6492  0.11%  89.7   17s

Cutting planes:
  Gomory: 1
  Flow cover: 6

Explored 42 nodes (25888 simplex iterations) in 18.69 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.282500000000e+04, best bound 9.282500000000e+04, gap 0.0%