Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:41 2013

Optimize a model with 3456 rows, 3276 columns and 12996 nonzeros
Presolve removed 18 rows and 0 columns
Presolve time: 0.01s
Presolved: 3438 rows, 3276 columns, 12978 nonzeros
Variable types: 3258 continuous, 18 integer (18 binary)

Root relaxation: objective 1.789210e+04, 677 iterations, 0.03 seconds

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

     0     0 17892.1022    0   11          - 17892.1022     -      -    0s
H    0     0                    18619.000000 17892.1022  3.90%     -    0s
*    0     0               0    18598.000000 18598.0000   0.0%     -    0s

Cutting planes:
  Gomory: 10
  Implied bound: 10

Explored 0 nodes (798 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.859800000000e+04, best bound 1.859800000000e+04, gap 0.0%