Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:44 2012

Optimize a model with 1260 rows, 1260 columns and 4900 nonzeros
Presolve removed 4 rows and 140 columns
Presolve time: 0.02s
Presolved: 1256 rows, 1120 columns, 4760 nonzeros
Variable types: 0 continuous, 1120 integer (1120 binary)
Found heuristic solution: objective 19.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 987 iterations, 0.01 seconds

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

     0     0    2.00000    0   62    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   96    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   62    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   95    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   96    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   95    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   96    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   96    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   96    3.00000    2.00000  33.3%     -    0s
     0     2    2.00000    0   96    3.00000    2.00000  33.3%     -    1s

Cutting planes:
  Gomory: 4
  Zero half: 3

Explored 10 nodes (40619 simplex iterations) in 2.59 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%