Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:43 2013

Optimize a model with 3819 rows, 3629 columns and 14459 nonzeros
Presolve removed 396 rows and 0 columns
Presolve time: 0.02s
Presolved: 3423 rows, 3629 columns, 13667 nonzeros
Variable types: 3610 continuous, 19 integer (19 binary)

Root relaxation: objective 1.765900e+04, 411 iterations, 0.01 seconds

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

     0     0 17659.0000    0    1          - 17659.0000     -      -    0s
H    0     0                    17673.000000 17659.0000  0.08%     -    0s
     0     0 17665.0000    0    1 17673.0000 17665.0000  0.05%     -    0s
*    0     0               0    17668.000000 17668.0000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 0 nodes (419 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.766800000000e+04, best bound 1.766800000000e+04, gap 0.0%