Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:36 2012

Optimize a model with 1080 rows, 1640 columns and 4720 nonzeros
Presolve removed 10 rows and 400 columns
Presolve time: 0.02s
Presolved: 1070 rows, 1240 columns, 4320 nonzeros
Variable types: 0 continuous, 1240 integer (1240 binary)
Found heuristic solution: objective 15.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 1066 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   42    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   77    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   42    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   73    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  106    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   85    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   84    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   42    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   75    3.00000    2.00000  33.3%     -    0s
     0     0    2.00000    0   75    3.00000    2.00000  33.3%     -    0s
     0     2    2.00000    0   75    3.00000    2.00000  33.3%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 1

Explored 5 nodes (29980 simplex iterations) in 1.39 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%