Gurobi 5.0.1 (linux64) logging started Fri Nov 16 02:06:11 2012

Optimize a model with 7191 rows, 992 columns and 22411 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.09s
Presolved: 7189 rows, 990 columns, 25483 nonzeros
Variable types: 0 continuous, 990 integer (990 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 3.468354e+00, 7177 iterations, 0.51 seconds

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

     0     0    3.46835    0  845   31.00000    3.46835  88.8%     -    1s
H    0     0                      29.0000000    3.46835  88.0%     -    1s
     0     0    6.00000    0   83   29.00000    6.00000  79.3%     -    1s
H    0     0                      14.0000000    6.00000  57.1%     -    1s
H    0     0                      10.0000000    6.00000  40.0%     -    1s
     0     0    6.00000    0  133   10.00000    6.00000  40.0%     -    2s
H    0     0                       8.0000000    6.00000  25.0%     -    2s
     0     0    6.00000    0   62    8.00000    6.00000  25.0%     -    3s
H    0     0                       7.0000000    6.00000  14.3%     -    3s
     0     0    6.00000    0   45    7.00000    6.00000  14.3%     -    3s
     0     0 infeasible    0         7.00000    6.00001  14.3%     -    3s

Explored 0 nodes (17067 simplex iterations) in 3.48 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%