Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:30 2013

Optimize a model with 64 rows, 2110 columns and 24118 nonzeros
Presolve removed 22 rows and 75 columns
Presolve time: 0.12s
Presolved: 42 rows, 2035 columns, 22068 nonzeros
Variable types: 2017 continuous, 18 integer (18 binary)

Root relaxation: objective 5.281733e+03, 20 iterations, 0.00 seconds

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

     0     0 5281.73269    0    7          - 5281.73269     -      -    0s
     0     0 5282.96589    0    7          - 5282.96589     -      -    0s
     0     0 5282.96589    0    7          - 5282.96589     -      -    0s
H    0     0                    5303.2525689 5282.96589  0.38%     -    0s
     0     0 5296.07220    0    4 5303.25257 5296.07220  0.14%     -    0s
     0     0 5296.08149    0    6 5303.25257 5296.08149  0.14%     -    0s
     0     0 5296.08242    0    6 5303.25257 5296.08242  0.14%     -    0s
     0     0 5296.08242    0    6 5303.25257 5296.08242  0.14%     -    0s
     0     2 5296.08398    0    6 5303.25257 5296.08398  0.14%     -    0s
*   11     3               8    5297.3973712 5296.30587  0.02%   4.1    0s
*   16     2               6    5296.3129667 5296.30971  0.00%   3.3    0s

Cutting planes:
  Gomory: 1
  Implied bound: 1
  Flow cover: 5

Explored 17 nodes (160 simplex iterations) in 0.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296312966652e+03, best bound 5.296309711191e+03, gap 0.0001%