Gurobi 5.0.1 (linux64) logging started Fri Nov 16 02:34:50 2012

Optimize a model with 8414 rows, 1122 columns and 26200 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.10s
Presolved: 8445 rows, 1120 columns, 29691 nonzeros
Variable types: 0 continuous, 1120 integer (1120 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 3.512195e+00, 8509 iterations, 0.64 seconds

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

     0     0    3.51220    0  934   33.00000    3.51220  89.4%     -    1s
H    0     0                      31.0000000    3.51220  88.7%     -    1s
     0     0    6.00000    0   48   31.00000    6.00000  80.6%     -    2s
H    0     0                      17.0000000    6.00000  64.7%     -    2s
H    0     0                       8.0000000    6.00000  25.0%     -    2s
     0     0    6.00000    0   36    8.00000    6.00000  25.0%     -    2s
*    0     0               0       7.0000000    7.00000   0.0%     -    2s

Explored 0 nodes (16930 simplex iterations) in 2.91 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%