Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:33 2012

Optimize a model with 95 rows, 77 columns and 312 nonzeros
Presolve time: 0.00s
Presolved: 95 rows, 77 columns, 312 nonzeros
Variable types: 0 continuous, 77 integer (77 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 0.000000e+00, 44 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   29   22.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.48276    0   30   15.00000    0.48276  96.8%     -    0s
     0     0    1.18517    0   33   15.00000    1.18517  92.1%     -    0s
     0     0    1.48372    0   34   15.00000    1.48372  90.1%     -    0s
H    0     0                      12.0000000    1.48372  87.6%     -    0s
     0     0    1.48918    0   36   12.00000    1.48918  87.6%     -    0s
     0     0    1.48918    0   36   12.00000    1.48918  87.6%     -    0s
H    0     0                      11.0000000    1.48918  86.5%     -    0s
     0     2    1.48918    0   36   11.00000    1.48918  86.5%     -    0s
*   10     9               7       8.0000000    3.56450  55.4%  17.4    0s
*   20     1               3       7.0000000    7.00000   0.0%  14.7    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 21 nodes (513 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%