Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:28 2012

Optimize a model with 263 rows, 284 columns and 939 nonzeros
Presolve removed 0 rows and 27 columns
Presolve time: 0.00s
Presolved: 263 rows, 257 columns, 912 nonzeros
Variable types: 0 continuous, 257 integer (256 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 0.000000e+00, 157 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  100   34.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.12073    0  103   26.00000    0.12073   100%     -    0s
H    0     0                      18.0000000    0.12073  99.3%     -    0s
H    0     0                      11.0000000    0.12073  98.9%     -    0s
     0     0    0.65496    0  111   11.00000    0.65496  94.0%     -    0s
H    0     0                       6.0000000    0.65496  89.1%     -    0s
     0     0    0.65496    0  114    6.00000    0.65496  89.1%     -    0s
     0     0    0.65496    0  113    6.00000    0.65496  89.1%     -    0s
     0     2    0.65558    0  113    6.00000    0.65558  89.1%     -    0s
*   73    34              22       5.0000000    1.50457  69.9%  19.0    0s
*   86    12               7       4.0000000    1.52296  61.9%  20.3    0s

Cutting planes:
  Gomory: 3
  Mod-K: 1

Explored 99 nodes (2795 simplex iterations) in 0.11 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%