Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:30 2013

Optimize a model with 11968 rows, 11628 columns and 46308 nonzeros
Presolve removed 34 rows and 0 columns
Presolve time: 0.05s
Presolved: 11934 rows, 11628 columns, 46274 nonzeros
Variable types: 11594 continuous, 34 integer (34 binary)

Root relaxation: objective 2.845195e+04, 1356 iterations, 0.15 seconds

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

     0     0 28451.9532    0   25          - 28451.9532     -      -    0s
H    0     0                    32533.000000 28451.9532  12.5%     -    0s
     0     0 30811.3088    0    2 32533.0000 30811.3088  5.29%     -    0s
H    0     0                    31299.529412 30811.3088  1.56%     -    0s
H    0     0                    30975.000000 30811.3088  0.53%     -    0s
H    0     0                    30879.000000 30811.3088  0.22%     -    0s
     0     0 30874.3333    0    1 30879.0000 30874.3333  0.02%     -    0s
H    0     0                    30876.000000 30874.3333  0.01%     -    0s

Cutting planes:
  Implied bound: 23

Explored 0 nodes (1988 simplex iterations) in 0.67 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.087600000000e+04, best bound 3.087433333333e+04, gap 0.0054%