Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:19:35 2013

Optimize a model with 770 rows, 49070 columns and 98070 nonzeros
Presolve time: 0.07s
Presolved: 770 rows, 49070 columns, 98070 nonzeros
Variable types: 49000 continuous, 70 integer (70 binary)

Root relaxation: objective 8.861560e+04, 1856 iterations, 0.05 seconds

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

     0     0 88615.5961    0    5          - 88615.5961     -      -    0s
H    0     0                    90449.000000 88615.5961  2.03%     -    0s
H    0     0                    89865.000000 88615.5961  1.39%     -    0s
     0     0 88891.5196    0    3 89865.0000 88891.5196  1.08%     -    0s
     0     0 88916.0143    0    4 89865.0000 88916.0143  1.06%     -    0s
     0     0 88918.3278    0    2 89865.0000 88918.3278  1.05%     -    0s
     0     0 88920.2197    0    2 89865.0000 88920.2197  1.05%     -    0s
     0     0 88920.2197    0    2 89865.0000 88920.2197  1.05%     -    0s
H    0     0                    89440.000000 88920.2197  0.58%     -    0s
     0     0 88920.2197    0    5 89440.0000 88920.2197  0.58%     -    1s
     0     0 88920.2197    0    3 89440.0000 88920.2197  0.58%     -    1s
     0     0 88920.2197    0    4 89440.0000 88920.2197  0.58%     -    1s
     0     0 88920.2197    0    3 89440.0000 88920.2197  0.58%     -    1s
     0     0 88920.2197    0    2 89440.0000 88920.2197  0.58%     -    1s
     0     0 88920.2197    0    2 89440.0000 88920.2197  0.58%     -    1s
     0     2 88953.0769    0    2 89440.0000 88953.0769  0.54%     -    1s
*    9     2               8    89269.000000 89269.0000   0.0%  62.9    1s

Cutting planes:
  Implied bound: 48
  Flow cover: 3

Explored 10 nodes (4595 simplex iterations) in 1.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.926900000000e+04, best bound 8.926900000000e+04, gap 0.0%