Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:14 2012

Optimize a model with 253 rows, 281 columns and 911 nonzeros
Presolve removed 0 rows and 31 columns
Presolve time: 0.00s
Presolved: 253 rows, 250 columns, 880 nonzeros
Variable types: 0 continuous, 250 integer (249 binary)
Found heuristic solution: objective 39.0000000

Root relaxation: objective 0.000000e+00, 150 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   97   39.00000    0.00000   100%     -    0s
H    0     0                      34.0000000    0.00000   100%     -    0s
H    0     0                      33.0000000    0.00000   100%     -    0s
H    0     0                      29.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   99   29.00000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   97    8.00000    0.00000   100%     -    0s
     0     2    0.00000    0   97    8.00000    0.00000   100%     -    0s
*   50    27              43       5.0000000    0.78431  84.3%  11.1    0s
*   67    17              13       4.0000000    1.00000  75.0%  10.6    0s

Cutting planes:
  Gomory: 1

Explored 92 nodes (1827 simplex iterations) in 0.14 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%