Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:27 2013

Optimize a model with 2430 rows, 2280 columns and 9030 nonzeros
Presolve removed 15 rows and 0 columns
Presolve time: 0.01s
Presolved: 2415 rows, 2280 columns, 9015 nonzeros
Variable types: 2265 continuous, 15 integer (15 binary)

Root relaxation: objective 1.878958e+04, 521 iterations, 0.02 seconds

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

     0     0 18789.5757    0   10          - 18789.5757     -      -    0s
H    0     0                    19189.000000 18789.5757  2.08%     -    0s
     0     0     cutoff    0      19189.0000 19189.0000   0.0%     -    0s

Cutting planes:
  Gomory: 6
  Implied bound: 10

Explored 0 nodes (617 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.918900000000e+04, best bound 1.918900000000e+04, gap 0.0%