Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:14 2012

Optimize a model with 424 rows, 42 columns and 848 nonzeros
Presolve removed 291 rows and 0 columns
Presolve time: 0.00s
Presolved: 133 rows, 42 columns, 683 nonzeros
Variable types: 0 continuous, 42 integer (42 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.571130e+00, 78 iterations, 0.00 seconds

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

     0     0    8.57113    0   34    6.00000    8.57113  42.9%     -    0s
     0     0    8.21739    0   38    6.00000    8.21739  37.0%     -    0s
H    0     0                       7.0000000    8.21739  17.4%     -    0s
     0     0    8.12223    0   37    7.00000    8.12223  16.0%     -    0s
     0     0    8.06963    0   38    7.00000    8.06963  15.3%     -    0s
     0     0    8.01639    0   37    7.00000    8.01639  14.5%     -    0s
     0     0    8.00000    0   14    7.00000    8.00000  14.3%     -    0s
     0     0     cutoff    0         7.00000    7.99999  14.3%     -    0s

Cutting planes:
  Clique: 13
  Zero half: 6

Explored 0 nodes (208 simplex iterations) in 0.03 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%