Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:07 2013

Optimize a model with 5104 rows, 4884 columns and 19404 nonzeros
Presolve removed 22 rows and 0 columns
Presolve time: 0.02s
Presolved: 5082 rows, 4884 columns, 19382 nonzeros
Variable types: 4862 continuous, 22 integer (22 binary)

Root relaxation: objective 1.865713e+04, 421 iterations, 0.02 seconds

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

     0     0 18657.1287    0   14          - 18657.1287     -      -    0s
H    0     0                    19708.000000 18657.1287  5.33%     -    0s
     0     0 19470.2640    0    2 19708.0000 19470.2640  1.21%     -    0s
H    0     0                    19487.000000 19470.2640  0.09%     -    0s
     0     0 19477.0000    0    1 19487.0000 19477.0000  0.05%     -    0s
*    0     0               0    19478.000000 19478.0000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Implied bound: 11

Explored 0 nodes (585 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.947800000000e+04, best bound 1.947800000000e+04, gap 0.0%