Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:10:21 2012

Optimize a model with 487 rows, 450 columns and 1665 nonzeros
Presolve removed 0 rows and 18 columns
Presolve time: 0.00s
Presolved: 487 rows, 432 columns, 1647 nonzeros
Variable types: 0 continuous, 432 integer (431 binary)
Found heuristic solution: objective 93.0000000

Root relaxation: objective 0.000000e+00, 240 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   93.00000    0.00000   100%     -    0s
H    0     0                      77.0000000    0.00000   100%     -    0s
     0     0    0.40504    0  185   77.00000    0.40504  99.5%     -    0s
H    0     0                      56.0000000    0.40504  99.3%     -    0s
     0     0    0.98756    0  187   56.00000    0.98756  98.2%     -    0s
H    0     0                      41.0000000    0.98756  97.6%     -    0s
     0     0    0.98832    0  189   41.00000    0.98832  97.6%     -    0s
     0     0    0.98832    0  189   41.00000    0.98832  97.6%     -    0s
H    0     0                      39.0000000    0.98832  97.5%     -    0s
     0     2    0.98894    0  189   39.00000    0.98894  97.5%     -    0s
H   27    27                      19.0000000    1.00000  94.7%  39.3    0s
H   76    39                      16.0000000    1.46943  90.8%  39.6    0s
*   97    35               9      15.0000000    3.16000  78.9%  41.6    0s

Cutting planes:
  Gomory: 4
  Mod-K: 1

Explored 345 nodes (13869 simplex iterations) in 0.59 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%