Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:25:44 2013

Optimize a model with 1189 rows, 23516 columns and 1161743 nonzeros
Presolve removed 34 rows and 95 columns
Presolve time: 3.67s
Presolved: 1155 rows, 23421 columns, 1158434 nonzeros
Variable types: 0 continuous, 23421 integer (23421 binary)
Found heuristic solution: objective 12168.000000

Root relaxation: objective 9.111714e+03, 5205 iterations, 2.18 seconds

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

     0     0 9111.71429    0   62 12168.0000 9111.71429  25.1%     -    6s
H    0     0                    9974.0000000 9111.71429  8.65%     -    7s
*    0     0               0    9117.0000000 9117.00000   0.0%     -   11s

Cutting planes:
  Clique: 1
  Zero half: 29

Explored 0 nodes (5842 simplex iterations) in 11.59 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.117000000000e+03, best bound 9.117000000000e+03, gap 0.0%