Gurobi 5.0.1 (linux64) logging started Fri Nov 16 07:05:05 2012

Optimize a model with 9899 rows, 3660 columns and 33058 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.25s
Presolved: 9957 rows, 3658 columns, 36328 nonzeros
Variable types: 0 continuous, 3658 integer (3658 binary)
Found heuristic solution: objective 59.0000000

Root relaxation: objective 2.000000e+00, 2610 iterations, 0.08 seconds

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

     0     0    2.00000    0  120   59.00000    2.00000  96.6%     -    0s
H    0     0                      56.0000000    2.00000  96.4%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
H    0     0                       4.0000000    2.00000  50.0%     -    0s
     0     0    2.66667    0 2038    4.00000    2.66667  33.3%     -    1s
     0     0    2.66667    0  289    4.00000    2.66667  33.3%     -    8s
     0     2    2.66667    0  135    4.00000    2.66667  33.3%     -   15s

Cutting planes:
  Clique: 42
  Zero half: 8

Explored 39 nodes (64018 simplex iterations) in 17.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%