Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:36:17 2012

Optimize a model with 5319 rows, 812 columns and 16630 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.07s
Presolved: 5345 rows, 810 columns, 22908 nonzeros
Variable types: 0 continuous, 810 integer (810 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 3.733333e+00, 5921 iterations, 0.35 seconds

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

     0     0    3.73333    0  599   28.00000    3.73333  86.7%     -    0s
     0     0    6.00000    0  117   28.00000    6.00000  78.6%     -    1s
H    0     0                      23.0000000    6.00000  73.9%     -    1s
H    0     0                       7.0000000    6.00000  14.3%     -    1s
     0     0    6.00000    0   56    7.00000    6.00000  14.3%     -    1s
     0     0 infeasible    0         7.00000    6.00001  14.3%     -    1s

Explored 0 nodes (10702 simplex iterations) in 1.58 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%