Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:51:03 2012

Optimize a model with 6239 rows, 930 columns and 19498 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.08s
Presolved: 6237 rows, 928 columns, 23249 nonzeros
Variable types: 0 continuous, 928 integer (928 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 3.513514e+00, 4901 iterations, 0.32 seconds

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

     0     0    3.51351    0  775   30.00000    3.51351  88.3%     -    1s
     0     0    6.00000    0  128   30.00000    6.00000  80.0%     -    1s
H    0     0                      22.0000000    6.00000  72.7%     -    1s
H    0     0                       7.0000000    6.00000  14.3%     -    1s
     0     0    6.00000    0   92    7.00000    6.00000  14.3%     -    1s
     0     0 infeasible    0         7.00000    6.00001  14.3%     -    1s

Explored 0 nodes (10214 simplex iterations) in 1.90 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%