Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:55 2012

Optimize a model with 325 rows, 342 columns and 1152 nonzeros
Presolve removed 0 rows and 23 columns
Presolve time: 0.00s
Presolved: 325 rows, 319 columns, 1129 nonzeros
Variable types: 0 continuous, 319 integer (318 binary)
Found heuristic solution: objective 58.0000000

Root relaxation: objective 0.000000e+00, 231 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  130   58.00000    0.00000   100%     -    0s
H    0     0                      52.0000000    0.00000   100%     -    0s
H    0     0                      46.0000000    0.00000   100%     -    0s
H    0     0                      43.0000000    0.00000   100%     -    0s
     0     0    0.16773    0  133   43.00000    0.16773   100%     -    0s
H    0     0                      26.0000000    0.16773  99.4%     -    0s
     0     0    0.74453    0  137   26.00000    0.74453  97.1%     -    0s
H    0     0                      10.0000000    0.74453  92.6%     -    0s
     0     0    0.74453    0  143   10.00000    0.74453  92.6%     -    0s
     0     0    0.74453    0  136   10.00000    0.74453  92.6%     -    0s
H    0     0                       8.0000000    0.74453  90.7%     -    0s
     0     2    0.74829    0  136    8.00000    0.74829  90.6%     -    0s
H   27    27                       6.0000000    1.50582  74.9%  19.5    0s
*   30    24              22       5.0000000    1.50582  69.9%  18.5    0s
*   52    17              16       4.0000000    1.53740  61.6%  13.3    0s

Cutting planes:
  Gomory: 4

Explored 86 nodes (1988 simplex iterations) in 0.12 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%