Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:04:23 2012

Optimize a model with 17919 rows, 25760 columns and 78718 nonzeros
Presolve removed 38 rows and 5762 columns
Presolve time: 0.37s
Presolved: 17881 rows, 19998 columns, 72734 nonzeros
Variable types: 0 continuous, 19998 integer (19998 binary)
Found heuristic solution: objective 160.0000000

Root relaxation: objective 2.000000e+00, 10990 iterations, 0.42 seconds

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

     0     0    2.00000    0  106  160.00000    2.00000  98.8%     -    1s
H    0     0                      98.0000000    2.00000  98.0%     -    1s
H    0     0                       4.0000000    2.00000  50.0%     -    1s
H    0     0                       3.0000000    2.00000  33.3%     -    1s

Explored 0 nodes (35862 simplex iterations) in 1.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%