Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:27:20 2013

Optimize a model with 2047 rows, 529 columns and 6348 nonzeros
Presolve removed 566 rows and 280 columns
Presolve time: 0.02s
Presolved: 1481 rows, 249 columns, 4681 nonzeros
Variable types: 12 continuous, 237 integer (237 binary)
Found heuristic solution: objective 9948.0000000

Root relaxation: objective 7.169629e+03, 1141 iterations, 0.02 seconds

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

     0     0 7169.62929    0    8 9948.00000 7169.62929  27.9%     -    0s
H    0     0                    7179.0000000 7169.62929  0.13%     -    0s
H    0     0                    7177.0000000 7169.62929  0.10%     -    0s
     0     0 7170.89360    0    8 7177.00000 7170.89360  0.09%     -    0s
     0     0 7170.89360    0    6 7177.00000 7170.89360  0.09%     -    0s
     0     0 7171.89619    0    8 7177.00000 7171.89619  0.07%     -    0s
     0     0 7172.72750    0   19 7177.00000 7172.72750  0.06%     -    0s
H    0     0                    7175.0000000 7172.72750  0.03%     -    0s
     0     0 7173.26544    0   18 7175.00000 7173.26544  0.02%     -    0s
     0     1 7173.53859    0   17 7175.00000 7173.53859  0.02%     -    0s
H    1     1                    7174.0000000 7173.53859  0.01%   2.0    0s

Cutting planes:
  Gomory: 2
  Cover: 3
  MIR: 7

Explored 1 nodes (1228 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.174000000000e+03, best bound 7.174000000000e+03, gap 0.0%