Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:21 2012

Optimize a model with 1440 rows, 77 columns and 2880 nonzeros
Presolve removed 986 rows and 0 columns
Presolve time: 0.03s
Presolved: 454 rows, 77 columns, 2759 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 9.0000000

Root relaxation: objective 1.237035e+01, 265 iterations, 0.01 seconds

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

     0     0   12.37035    0   75    9.00000   12.37035  37.4%     -    0s
     0     0   12.15871    0   74    9.00000   12.15871  35.1%     -    0s
     0     0   12.05484    0   74    9.00000   12.05484  33.9%     -    0s
     0     0   12.00533    0   76    9.00000   12.00533  33.4%     -    0s
     0     0   11.99577    0   76    9.00000   11.99577  33.3%     -    0s
     0     0   11.98584    0   76    9.00000   11.98584  33.2%     -    0s
     0     0   11.98333    0   76    9.00000   11.98333  33.1%     -    0s
     0     0   11.98114    0   76    9.00000   11.98114  33.1%     -    0s
     0     0   11.97976    0   77    9.00000   11.97976  33.1%     -    0s
     0     2   11.97955    0   77    9.00000   11.97955  33.1%     -    0s

Cutting planes:
  Clique: 37
  Zero half: 6

Explored 39 nodes (2347 simplex iterations) in 0.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%