Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:41:46 2013

Optimize a model with 1320 rows, 6060 columns and 15100 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.09s
Presolved: 1300 rows, 6040 columns, 14080 nonzeros
Variable types: 5040 continuous, 1000 integer (1000 binary)

Root relaxation: objective 4.636776e+04, 506 iterations, 0.01 seconds

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

     0     0 46367.7551    0    4          - 46367.7551     -      -    0s
     0     0 46451.3681    0    4          - 46451.3681     -      -    0s
     0     0 46454.7867    0    8          - 46454.7867     -      -    0s
     0     0 46455.9325    0    7          - 46455.9325     -      -    0s
     0     0 46456.5099    0   10          - 46456.5099     -      -    0s
     0     0 46457.6900    0    7          - 46457.6900     -      -    0s
     0     0 46457.6988    0    7          - 46457.6988     -      -    0s
     0     0 46457.7510    0    7          - 46457.7510     -      -    0s
     0     0 46457.7510    0    7          - 46457.7510     -      -    0s
     0     2 46457.7510    0    7          - 46457.7510     -      -    0s
*   19     7              10    46653.878061 46653.7981  0.00%  33.1    0s

Cutting planes:
  Gomory: 1
  Implied bound: 29
  Flow cover: 2

Explored 20 nodes (1429 simplex iterations) in 0.66 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.665387806135e+04, best bound 4.665379813595e+04, gap 0.0002%