Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:15 2012

Optimize a model with 169 rows, 133 columns and 553 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 169 rows, 132 columns, 552 nonzeros
Variable types: 0 continuous, 132 integer (131 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 81 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   47   33.00000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.48252    0   50   23.00000    0.48252  97.9%     -    0s
H    0     0                      19.0000000    0.48252  97.5%     -    0s
     0     0    1.00000    0   50   19.00000    1.00000  94.7%     -    0s
     0     0    1.00000    0   50   19.00000    1.00000  94.7%     -    0s
     0     0    1.00000    0   47   19.00000    1.00000  94.7%     -    0s
     0     2    1.00000    0   47   19.00000    1.00000  94.7%     -    0s
*   21    18              13      17.0000000    4.40620  74.1%  27.0    0s
*   36    20              10      15.0000000    4.46091  70.3%  22.9    0s
H   54    15                      14.0000000    5.86364  58.1%  20.0    0s
H  136     8                      13.0000000   10.09091  22.4%  17.2    0s

Cutting planes:
  Gomory: 3

Explored 149 nodes (2928 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%