Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:25 2012

Optimize a model with 245 rows, 268 columns and 878 nonzeros
Presolve removed 0 rows and 28 columns
Presolve time: 0.00s
Presolved: 245 rows, 240 columns, 850 nonzeros
Variable types: 0 continuous, 240 integer (239 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 0.000000e+00, 152 iterations, 0.00 seconds

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

     0     0    0.00000    0  102   38.00000    0.00000   100%     -    0s
H    0     0                      35.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.22291    0  106   15.00000    0.22291  98.5%     -    0s
H    0     0                      13.0000000    0.22291  98.3%     -    0s
     0     0    0.82333    0  109   13.00000    0.82333  93.7%     -    0s
H    0     0                      10.0000000    0.82333  91.8%     -    0s
     0     0    0.82333    0  109   10.00000    0.82333  91.8%     -    0s
     0     2    0.82358    0  109   10.00000    0.82358  91.8%     -    0s
H   27    26                       7.0000000    1.00000  85.7%  23.4    0s
*   38    16              28       5.0000000    1.00000  80.0%  17.9    0s
*   55    16              13       4.0000000    1.00000  75.0%  19.0    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 145 nodes (3783 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%