Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:44:27 2012

Optimize a model with 6118 rows, 870 columns and 19080 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.08s
Presolved: 6145 rows, 868 columns, 24959 nonzeros
Variable types: 0 continuous, 868 integer (868 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 3.753247e+00, 7839 iterations, 0.48 seconds

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

     0     0    3.75325    0  626   29.00000    3.75325  87.1%     -    1s
H    0     0                      28.0000000    3.75325  86.6%     -    1s
     0     0    7.00000    0   93   28.00000    7.00000  75.0%     -    1s
H    0     0                      23.0000000    7.00000  69.6%     -    1s
H    0     0                       8.0000000    7.00000  12.5%     -    1s
*    0     0               0       7.0000000    7.00000   0.0%     -    1s

Cutting planes:
  Gomory: 1
  Clique: 14
  Zero half: 57

Explored 0 nodes (13455 simplex iterations) in 1.85 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%