Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:18 2012

Optimize a model with 179 rows, 135 columns and 580 nonzeros
Presolve time: 0.00s
Presolved: 179 rows, 135 columns, 580 nonzeros
Variable types: 0 continuous, 135 integer (135 binary)
Found heuristic solution: objective 37.0000000
Found heuristic solution: objective 35.0000000

Root relaxation: objective 0.000000e+00, 70 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   45   35.00000    0.00000   100%     -    0s
H    0     0                      28.0000000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
     0     0    0.48889    0   46   23.00000    0.48889  97.9%     -    0s
     0     0    1.00000    0   47   23.00000    1.00000  95.7%     -    0s
     0     0    1.00000    0   48   23.00000    1.00000  95.7%     -    0s
     0     0    1.00000    0   45   23.00000    1.00000  95.7%     -    0s
H    0     0                      18.0000000    1.00000  94.4%     -    0s
     0     2    1.00000    0   45   18.00000    1.00000  94.4%     -    0s
*   25    18              16      17.0000000    3.14312  81.5%  29.3    0s
*   69    39              14      16.0000000    5.54618  65.3%  23.9    0s
H  396    31                      15.0000000   12.35379  17.6%  17.5    0s

Cutting planes:
  Gomory: 2
  Mod-K: 1

Explored 443 nodes (7756 simplex iterations) in 0.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%