Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:17 2012

Optimize a model with 113 rows, 98 columns and 378 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 113 rows, 97 columns, 377 nonzeros
Variable types: 0 continuous, 97 integer (96 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 0.000000e+00, 59 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   40   22.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.53088    0   41   12.00000    0.53088  95.6%     -    0s
     0     0    1.00000    0   42   12.00000    1.00000  91.7%     -    0s
     0     0    1.00000    0   40   12.00000    1.00000  91.7%     -    0s
H    0     0                      11.0000000    1.00000  90.9%     -    0s
H    0     0                       8.0000000    1.00000  87.5%     -    0s
     0     2    1.00000    0   40    8.00000    1.00000  87.5%     -    0s
*   19     3               4       7.0000000    3.50000  50.0%  19.5    0s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 31 nodes (764 simplex iterations) in 0.04 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%