Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:15 2013

Optimize a model with 308 rows, 7868 columns and 15708 nonzeros
Presolve time: 0.01s
Presolved: 308 rows, 7868 columns, 15708 nonzeros
Variable types: 7840 continuous, 28 integer (28 binary)

Root relaxation: objective 2.794919e+04, 359 iterations, 0.01 seconds

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

     0     0 27949.1917    0    7          - 27949.1917     -      -    0s
H    0     0                    28841.000000 27949.1917  3.09%     -    0s
H    0     0                    28619.000000 27949.1917  2.34%     -    0s
     0     0 28474.4398    0    3 28619.0000 28474.4398  0.51%     -    0s
     0     0 28526.3987    0    3 28619.0000 28526.3987  0.32%     -    0s
     0     0 28531.2442    0    2 28619.0000 28531.2442  0.31%     -    0s
     0     0 28531.2442    0    2 28619.0000 28531.2442  0.31%     -    0s
     0     0 28533.4483    0    2 28619.0000 28533.4483  0.30%     -    0s
     0     0 28533.4483    0    2 28619.0000 28533.4483  0.30%     -    0s
     0     0 28533.4483    0    2 28619.0000 28533.4483  0.30%     -    0s
     0     0 28580.3878    0    1 28619.0000 28580.3878  0.13%     -    0s
H    0     0                    28605.000000 28580.3878  0.09%     -    0s
     0     2 28591.0000    0    1 28605.0000 28591.0000  0.05%     -    0s

Cutting planes:
  Implied bound: 46
  Flow cover: 1

Explored 3 nodes (561 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.860500000000e+04, best bound 2.860500000000e+04, gap 0.0%