Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:27:00 2014

Optimize a model with 676 rows, 651 columns and 2525 nonzeros
Presolve time: 0.01s
Presolved: 676 rows, 651 columns, 2525 nonzeros
Variable types: 1 continuous, 650 integer (650 binary)
Found heuristic solution: objective 0.7971768
Found heuristic solution: objective 0.7945887
Found heuristic solution: objective 0.7706626

Root relaxation: objective 2.527971e-01, 445 iterations, 0.01 seconds

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

     0     0    0.25280    0  177    0.77066    0.25280  67.2%     -    0s
H    0     0                       0.5155813    0.25280  51.0%     -    0s
     0     0    0.26909    0  143    0.51558    0.26909  47.8%     -    0s
     0     0    0.26909    0  147    0.51558    0.26909  47.8%     -    0s
H    0     0                       0.4942634    0.26909  45.6%     -    0s
     0     0    0.27982    0  122    0.49426    0.27982  43.4%     -    0s
     0     0    0.29097    0  140    0.49426    0.29097  41.1%     -    0s
     0     0    0.29103    0  141    0.49426    0.29103  41.1%     -    0s
     0     0    0.29103    0  133    0.49426    0.29103  41.1%     -    0s
H    0     0                       0.4795389    0.29103  39.3%     -    0s
     0     2    0.38941    0   63    0.47954    0.38941  18.8%     -    0s
*    7     4               6       0.4349268    0.39947  8.15%  91.7    0s

Cutting planes:
  Gomory: 3

Explored 11 nodes (3356 simplex iterations) in 0.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.349267583379e-01, best bound 4.349267583379e-01, gap 0.0%