Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:43:29 2012

Optimize a model with 311 rows, 331 columns and 1106 nonzeros
Presolve removed 0 rows and 33 columns
Presolve time: 0.00s
Presolved: 311 rows, 298 columns, 1073 nonzeros
Variable types: 0 continuous, 298 integer (297 binary)
Found heuristic solution: objective 55.0000000

Root relaxation: objective 0.000000e+00, 184 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  123   55.00000    0.00000   100%     -    0s
H    0     0                      34.0000000    0.00000   100%     -    0s
H    0     0                      32.0000000    0.00000   100%     -    0s
     0     0    0.13719    0  125   32.00000    0.13719   100%     -    0s
H    0     0                      29.0000000    0.13719   100%     -    0s
H    0     0                      28.0000000    0.13719   100%     -    0s
H    0     0                      24.0000000    0.13719  99.4%     -    0s
     0     0    0.73996    0  128   24.00000    0.73996  96.9%     -    0s
H    0     0                      18.0000000    0.73996  95.9%     -    0s
H    0     0                       8.0000000    0.73996  90.8%     -    0s
     0     0    0.73996    0  128    8.00000    0.73996  90.8%     -    0s
     0     2    0.74241    0  128    8.00000    0.74241  90.7%     -    0s
*   25    11              20       4.0000000    1.00000  75.0%  23.7    0s

Cutting planes:
  Gomory: 4
  Mod-K: 2

Explored 71 nodes (2679 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%