Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:49 2013

Optimize a model with 330 rows, 9030 columns and 18030 nonzeros
Presolve time: 0.01s
Presolved: 330 rows, 9030 columns, 18030 nonzeros
Variable types: 9000 continuous, 30 integer (30 binary)

Root relaxation: objective 2.716576e+04, 330 iterations, 0.00 seconds

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

     0     0 27165.7579    0    9          - 27165.7579     -      -    0s
H    0     0                    28279.000000 27165.7579  3.94%     -    0s
     0     0 27410.6422    0    4 28279.0000 27410.6422  3.07%     -    0s
H    0     0                    28219.038826 27410.6422  2.86%     -    0s
H    0     0                    27961.000000 27410.6422  1.97%     -    0s
     0     0 27439.8191    0    3 27961.0000 27439.8191  1.86%     -    0s
H    0     0                    27892.000000 27439.8191  1.62%     -    0s
     0     0 27445.1573    0    4 27892.0000 27445.1573  1.60%     -    0s
H    0     0                    27587.000000 27445.1573  0.51%     -    0s
     0     0 27446.0588    0    2 27587.0000 27446.0588  0.51%     -    0s
H    0     0                    27583.000000 27446.0588  0.50%     -    0s
     0     0 27446.6257    0    2 27583.0000 27446.6257  0.49%     -    0s
     0     0 27446.8533    0    1 27583.0000 27446.8533  0.49%     -    0s
H    0     0                    27558.000000 27446.8533  0.40%     -    0s
     0     2 27447.2667    0    1 27558.0000 27447.2667  0.40%     -    0s

Cutting planes:
  Implied bound: 57
  Flow cover: 2

Explored 5 nodes (685 simplex iterations) in 0.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.755800000000e+04, best bound 2.755800000000e+04, gap 0.0%