Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:12:23 2012

Optimize a model with 453 rows, 435 columns and 1565 nonzeros
Presolve removed 0 rows and 19 columns
Presolve time: 0.00s
Presolved: 453 rows, 416 columns, 1546 nonzeros
Variable types: 0 continuous, 416 integer (415 binary)
Found heuristic solution: objective 80.0000000

Root relaxation: objective 0.000000e+00, 239 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  182   80.00000    0.00000   100%     -    0s
H    0     0                      71.0000000    0.00000   100%     -    0s
H    0     0                      51.0000000    0.00000   100%     -    0s
H    0     0                      48.0000000    0.00000   100%     -    0s
     0     0    0.27320    0  184   48.00000    0.27320  99.4%     -    0s
H    0     0                      44.0000000    0.27320  99.4%     -    0s
     0     0    0.82875    0  186   44.00000    0.82875  98.1%     -    0s
H    0     0                      38.0000000    0.82875  97.8%     -    0s
     0     0    0.82895    0  188   38.00000    0.82895  97.8%     -    0s
     0     0    0.82895    0  188   38.00000    0.82895  97.8%     -    0s
H    0     0                      36.0000000    0.82895  97.7%     -    0s
     0     2    0.82946    0  188   36.00000    0.82946  97.7%     -    0s
*   15    15              11      13.0000000    1.00000  92.3%  47.3    0s
*   21    14              13      12.0000000    1.00000  91.7%  44.8    0s

Cutting planes:
  Gomory: 4
  Mod-K: 2

Explored 716 nodes (17363 simplex iterations) in 0.74 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%