Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:56:34 2012

Optimize a model with 505 rows, 476 columns and 1736 nonzeros
Presolve removed 0 rows and 20 columns
Presolve time: 0.00s
Presolved: 505 rows, 456 columns, 1716 nonzeros
Variable types: 0 continuous, 456 integer (455 binary)
Found heuristic solution: objective 87.0000000

Root relaxation: objective 0.000000e+00, 258 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  195   87.00000    0.00000   100%     -    0s
H    0     0                      71.0000000    0.00000   100%     -    0s
H    0     0                      65.0000000    0.00000   100%     -    0s
H    0     0                      63.0000000    0.00000   100%     -    0s
     0     0    0.47428    0  199   63.00000    0.47428  99.2%     -    0s
H    0     0                      49.0000000    0.47428  99.0%     -    0s
     0     0    1.04310    0  200   49.00000    1.04310  97.9%     -    0s
H    0     0                      33.0000000    1.04310  96.8%     -    0s
     0     0    1.04310    0  200   33.00000    1.04310  96.8%     -    0s
     0     0    1.04310    0  199   33.00000    1.04310  96.8%     -    0s
H    0     0                      31.0000000    1.04310  96.6%     -    0s
     0     2    1.04423    0  199   31.00000    1.04423  96.6%     -    0s
H   27    27                      27.0000000    2.18488  91.9%  34.3    0s
*   37    35              21      17.0000000    2.18488  87.1%  30.2    0s
H   55    41                      16.0000000    2.37735  85.1%  32.5    0s
H   81    46                      15.0000000    4.00000  73.3%  29.4    0s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 460 nodes (14966 simplex iterations) in 0.73 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%