Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:28:56 2014

Optimize a model with 1681 rows, 1641 columns and 6440 nonzeros
Presolve time: 0.03s
Presolved: 1681 rows, 1641 columns, 6440 nonzeros
Variable types: 1 continuous, 1640 integer (1640 binary)
Found heuristic solution: objective 0.6492119
Found heuristic solution: objective 0.6338395

Root relaxation: objective 2.200351e-01, 1091 iterations, 0.03 seconds

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

     0     0    0.22004    0  312    0.63384    0.22004  65.3%     -    0s
H    0     0                       0.4057101    0.22004  45.8%     -    0s
     0     0    0.22858    0  230    0.40571    0.22858  43.7%     -    0s
     0     0    0.22858    0  281    0.40571    0.22858  43.7%     -    0s
H    0     0                       0.3757380    0.22858  39.2%     -    0s
     0     0    0.24245    0  247    0.37574    0.24245  35.5%     -    0s
H    0     0                       0.3691199    0.24245  34.3%     -    0s
     0     0    0.24499    0  222    0.36912    0.24499  33.6%     -    0s
H    0     0                       0.3211844    0.24499  23.7%     -    0s
     0     0     cutoff    0         0.32118    0.32118  0.00%     -    0s

Cutting planes:
  Gomory: 1
  MIR: 2

Explored 0 nodes (5077 simplex iterations) in 0.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.211844284365e-01, best bound 3.211844284365e-01, gap 0.0%