Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:58 2012

Optimize a model with 75 rows, 60 columns and 245 nonzeros
Presolve time: 0.00s
Presolved: 75 rows, 60 columns, 245 nonzeros
Variable types: 0 continuous, 60 integer (60 binary)
Found heuristic solution: objective 15.0000000

Root relaxation: objective 0.000000e+00, 33 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   23   15.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.73247    0   26   12.00000    0.73247  93.9%     -    0s
H    0     0                      11.0000000    0.73247  93.3%     -    0s
     0     0    0.73463    0   29   11.00000    0.73463  93.3%     -    0s
H    0     0                      10.0000000    0.73463  92.7%     -    0s
     0     2    0.76114    0   29   10.00000    0.76114  92.4%     -    0s
*    7     7               5       7.0000000    3.27273  53.2%  19.6    0s
*   17     1               4       6.0000000    6.00000   0.0%  11.4    0s

Cutting planes:
  Gomory: 1
  Zero half: 6

Explored 18 nodes (308 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%