Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:43:32 2012

Optimize a model with 10973 rows, 3540 columns and 36165 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.27s
Presolved: 10971 rows, 3538 columns, 35793 nonzeros
Variable types: 0 continuous, 3538 integer (3538 binary)
Found heuristic solution: objective 59.0000000

Root relaxation: objective 2.000000e+00, 2540 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  118   59.00000    2.00000  96.6%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    3.00000    0 2052    5.00000    3.00000  40.0%     -    2s
     0     0    3.00000    0  132    5.00000    3.00000  40.0%     -    6s
H    0     0                       4.0000000    3.00000  25.0%     -    6s
     0     2    3.00000    0  132    4.00000    3.00000  25.0%     -    7s

Cutting planes:
  Clique: 14
  Zero half: 1

Explored 1 nodes (35621 simplex iterations) in 9.18 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%