Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:09:40 2012

Optimize a model with 9347 rows, 3306 columns and 31063 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.21s
Presolved: 9345 rows, 3304 columns, 30735 nonzeros
Variable types: 0 continuous, 3304 integer (3304 binary)
Found heuristic solution: objective 57.0000000

Root relaxation: objective 2.000000e+00, 2364 iterations, 0.07 seconds

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

     0     0    2.00000    0  114   57.00000    2.00000  96.5%     -    0s
H    0     0                      51.0000000    2.00000  96.1%     -    0s
H    0     0                       5.0000000    2.00000  60.0%     -    0s
H    0     0                       4.0000000    2.00000  50.0%     -    0s
     0     0    3.00000    0  638    4.00000    3.00000  25.0%     -    1s
     0     0 infeasible    0         4.00000    3.00001  25.0%     -    1s

Cutting planes:
  Clique: 25
  Zero half: 10

Explored 0 nodes (11989 simplex iterations) in 1.46 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%