Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:31 2012

Optimize a model with 1720 rows, 1640 columns and 6640 nonzeros
Presolve removed 4 rows and 160 columns
Presolve time: 0.03s
Presolved: 1716 rows, 1480 columns, 6480 nonzeros
Variable types: 0 continuous, 1480 integer (1480 binary)
Found heuristic solution: objective 23.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 1251 iterations, 0.02 seconds

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

     0     0    2.00000    0   68    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  109    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  106    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  109    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  109    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0  106    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  109    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  106    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  109    3.00000    2.00000  33.3%     -    1s
     0     0    2.00000    0  109    3.00000    2.00000  33.3%     -    1s
     0     2    2.00000    0  109    3.00000    2.00000  33.3%     -    2s

Cutting planes:
  Gomory: 6
  Zero half: 3

Explored 9 nodes (53251 simplex iterations) in 4.54 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%