Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:18 2013

Optimize a model with 8176 rows, 7896 columns and 31416 nonzeros
Presolve removed 28 rows and 0 columns
Presolve time: 0.04s
Presolved: 8148 rows, 7896 columns, 31388 nonzeros
Variable types: 7868 continuous, 28 integer (28 binary)

Root relaxation: objective 2.614108e+04, 1000 iterations, 0.09 seconds

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

     0     0 26141.0769    0   21          - 26141.0769     -      -    0s
H    0     0                    28906.000000 26141.0769  9.57%     -    0s
     0     0 28531.2442    0    2 28906.0000 28531.2442  1.30%     -    0s
H    0     0                    28795.000000 28531.2442  0.92%     -    0s
H    0     0                    28605.000000 28531.2442  0.26%     -    0s
     0     0 28580.3878    0    1 28605.0000 28580.3878  0.09%     -    0s
     0     2 28591.0000    0    1 28605.0000 28591.0000  0.05%     -    0s

Cutting planes:
  Implied bound: 20

Explored 3 nodes (1531 simplex iterations) in 0.46 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%