Gurobi 5.6.3 (linux64) logging started Tue Oct  7 20:27:31 2014

Optimize a model with 1831 rows, 931 columns and 4500 nonzeros
Presolve removed 30 rows and 0 columns
Presolve time: 0.05s
Presolved: 1801 rows, 931 columns, 4470 nonzeros
Variable types: 1 continuous, 930 integer (930 binary)
Found heuristic solution: objective 1.1677278
Found heuristic solution: objective 0.8722935
Found heuristic solution: objective 0.8554823

Root relaxation: objective 1.411724e-02, 1324 iterations, 0.03 seconds

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

     0     0    0.01412    0  810    0.85548    0.01412  98.3%     -    0s
H    0     0                       0.5729081    0.01412  97.5%     -    0s
     0     0    0.02526    0  499    0.57291    0.02526  95.6%     -    0s
     0     0    0.25854    0  225    0.57291    0.25854  54.9%     -    0s
H    0     0                       0.5155047    0.25854  49.8%     -    0s
     0     0    0.27879    0  212    0.51550    0.27879  45.9%     -    0s
     0     0    0.27880    0  202    0.51550    0.27880  45.9%     -    0s
     0     0    0.27880    0  203    0.51550    0.27880  45.9%     -    0s
     0     0    0.27890    0  197    0.51550    0.27890  45.9%     -    0s
     0     0    0.27890    0  202    0.51550    0.27890  45.9%     -    0s
     0     0    0.27906    0  190    0.51550    0.27906  45.9%     -    0s
     0     0    0.27922    0  198    0.51550    0.27922  45.8%     -    0s
H    0     0                       0.4141409    0.27922  32.6%     -    0s
     0     0     cutoff    0         0.41414    0.41414  0.00%     -    0s

Cutting planes:
  Gomory: 1
  MIR: 2
  Zero half: 11
  Mod-K: 1

Explored 0 nodes (7951 simplex iterations) in 0.63 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.141409005601e-01, best bound 4.141409005601e-01, gap 0.0%