Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:17:04 2013

Optimize a model with 1109 rows, 17856 columns and 989431 nonzeros
Presolve removed 35 rows and 0 columns
Presolve time: 1.44s
Presolved: 1074 rows, 17856 columns, 987738 nonzeros
Variable types: 0 continuous, 17856 integer (17856 binary)
Found heuristic solution: objective 8737.0000000

Root relaxation: objective 6.957000e+03, 3758 iterations, 1.28 seconds

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

     0     0 6957.00000    0   49 8737.00000 6957.00000  20.4%     -    3s
H    0     0                    7038.0000000 6957.00000  1.15%     -    3s
*    0     0               0    6962.0000000 6962.00000   0.0%     -    4s

Cutting planes:
  Clique: 8
  Zero half: 26

Explored 0 nodes (4581 simplex iterations) in 4.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.962000000000e+03, best bound 6.962000000000e+03, gap 0.0%