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 2.976630e+04, 381 iterations, 0.01 seconds

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

     0     0 29766.3044    0    6          - 29766.3044     -      -    0s
H    0     0                    30647.000000 29766.3044  2.87%     -    0s
H    0     0                    30000.000000 29766.3044  0.78%     -    0s
     0     0 29992.0826    0    3 30000.0000 29992.0826  0.03%     -    0s
     0     0 29998.3321    0    2 30000.0000 29998.3321  0.01%     -    0s

Cutting planes:
  Implied bound: 36
  Flow cover: 6

Explored 0 nodes (508 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+04, best bound 2.999833214286e+04, gap 0.0056%