Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:33 2013

Optimize a model with 319 rows, 8439 columns and 16849 nonzeros
Presolve time: 0.01s
Presolved: 319 rows, 8439 columns, 16849 nonzeros
Variable types: 8410 continuous, 29 integer (29 binary)

Root relaxation: objective 2.717355e+04, 254 iterations, 0.00 seconds

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

     0     0 27173.5506    0    6          - 27173.5506     -      -    0s
H    0     0                    27621.000000 27173.5506  1.62%     -    0s
H    0     0                    27346.000000 27173.5506  0.63%     -    0s
     0     0 27294.6392    0    3 27346.0000 27294.6392  0.19%     -    0s
     0     0 27297.6333    0    1 27346.0000 27297.6333  0.18%     -    0s
     0     0 27345.0861    0    2 27346.0000 27345.0861  0.00%     -    0s

Cutting planes:
  Implied bound: 19
  Flow cover: 2

Explored 0 nodes (309 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.734600000000e+04, best bound 2.734508608696e+04, gap 0.0033%