Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012

Optimize a model with 389 rows, 40 columns and 778 nonzeros
Presolve removed 281 rows and 0 columns
Presolve time: 0.00s
Presolved: 108 rows, 40 columns, 555 nonzeros
Variable types: 0 continuous, 40 integer (40 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.163636e+00, 81 iterations, 0.00 seconds

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

     0     0    8.16364    0   29    6.00000    8.16364  36.1%     -    0s
H    0     0                       7.0000000    8.16364  16.6%     -    0s
     0     0     cutoff    0         7.00000    7.99999  14.3%     -    0s

Cutting planes:
  Gomory: 2
  Clique: 12

Explored 0 nodes (92 simplex iterations) in 0.01 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%