Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:35:35 2012

Optimize a model with 8215 rows, 2756 columns and 27142 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.16s
Presolved: 8213 rows, 2754 columns, 26826 nonzeros
Variable types: 0 continuous, 2754 integer (2754 binary)
Found heuristic solution: objective 52.0000000

Root relaxation: objective 2.000000e+00, 2051 iterations, 0.06 seconds

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

     0     0    2.00000    0  104   52.00000    2.00000  96.2%     -    0s
H    0     0                      45.0000000    2.00000  95.6%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
     0     0    3.00000    0  528    5.00000    3.00000  40.0%     -    1s
H    0     0                       4.0000000    3.00000  25.0%     -    1s
     0     0 infeasible    0         4.00000    3.00001  25.0%     -    1s

Cutting planes:
  Clique: 70
  Zero half: 44

Explored 0 nodes (10616 simplex iterations) in 1.58 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%