Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:05:28 2012

Optimize a model with 527 rows, 489 columns and 1804 nonzeros
Presolve removed 0 rows and 24 columns
Presolve time: 0.00s
Presolved: 527 rows, 465 columns, 1780 nonzeros
Variable types: 0 continuous, 465 integer (464 binary)
Found heuristic solution: objective 104.0000000

Root relaxation: objective 0.000000e+00, 283 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  192  104.00000    0.00000   100%     -    0s
H    0     0                      69.0000000    0.00000   100%     -    0s
     0     0    0.34174    0  194   69.00000    0.34174   100%     -    0s
H    0     0                      58.0000000    0.34174  99.4%     -    0s
     0     0    0.90911    0  197   58.00000    0.90911  98.4%     -    0s
H    0     0                      48.0000000    0.90911  98.1%     -    0s
     0     0    0.90968    0  204   48.00000    0.90968  98.1%     -    0s
     0     0    0.90968    0  198   48.00000    0.90968  98.1%     -    0s
H    0     0                      47.0000000    0.90968  98.1%     -    0s
     0     2    0.91425    0  198   47.00000    0.91425  98.1%     -    0s
*   51    43              28      22.0000000    1.00000  95.5%  39.9    0s
H  113    64                      19.0000000    2.40484  87.3%  38.8    0s

Cutting planes:
  Gomory: 4
  Zero half: 2

Explored 1766 nodes (57135 simplex iterations) in 2.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%