Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:57:06 2012

Optimize a model with 539 rows, 493 columns and 1838 nonzeros
Presolve removed 0 rows and 11 columns
Presolve time: 0.00s
Presolved: 539 rows, 482 columns, 1827 nonzeros
Variable types: 0 continuous, 482 integer (481 binary)
Found heuristic solution: objective 122.0000000

Root relaxation: objective 0.000000e+00, 334 iterations, 0.01 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0  206  122.00000    0.00000   100%     -    0s
H    0     0                      77.0000000    0.00000   100%     -    0s
H    0     0                      70.0000000    0.00000   100%     -    0s
     0     0    0.30147    0  208   70.00000    0.30147   100%     -    0s
H    0     0                      53.0000000    0.30147  99.4%     -    0s
     0     0    0.80139    0  209   53.00000    0.80139  98.5%     -    0s
H    0     0                      37.0000000    0.80139  97.8%     -    0s
     0     0    0.80220    0  211   37.00000    0.80220  97.8%     -    0s
     0     2    0.80318    0  211   37.00000    0.80318  97.8%     -    0s
H   32    32                      17.0000000    1.00000  94.1%  37.9    0s
H  198   119                      16.0000000    1.00000  93.8%  47.0    0s
*  759    89               9      15.0000000    8.92308  40.5%  43.5    1s

Cutting planes:
  Gomory: 3
  Mod-K: 2

Explored 1005 nodes (42515 simplex iterations) in 1.74 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%