Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:01 2012

Optimize a model with 117 rows, 111 columns and 401 nonzeros
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 117 rows, 109 columns, 399 nonzeros
Variable types: 0 continuous, 109 integer (108 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 0.000000e+00, 68 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   46   18.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
     0     0    0.44970    0   47    7.00000    0.44970  93.6%     -    0s
     0     0    1.00000    0   44    7.00000    1.00000  85.7%     -    0s
H    0     0                       5.0000000    1.00000  80.0%     -    0s
     0     0    1.00000    0   44    5.00000    1.00000  80.0%     -    0s
     0     0    1.00000    0   38    5.00000    1.00000  80.0%     -    0s
H    0     0                       4.0000000    1.00000  75.0%     -    0s
     0     2    1.00000    0   38    4.00000    1.00000  75.0%     -    0s
*   12     4               8       3.0000000    1.74286  41.9%  27.8    0s

Cutting planes:
  Gomory: 1
  Mod-K: 2

Explored 19 nodes (834 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%