Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:26:28 2012

Optimize a model with 307 rows, 227 columns and 992 nonzeros
Presolve time: 0.00s
Presolved: 307 rows, 227 columns, 992 nonzeros
Variable types: 0 continuous, 227 integer (227 binary)
Found heuristic solution: objective 61.0000000

Root relaxation: objective 0.000000e+00, 116 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   73   61.00000    0.00000   100%     -    0s
H    0     0                      57.0000000    0.00000   100%     -    0s
     0     0    0.48304    0   75   57.00000    0.48304  99.2%     -    0s
H    0     0                      53.0000000    0.48304  99.1%     -    0s
     0     0    1.04956    0   77   53.00000    1.04956  98.0%     -    0s
H    0     0                      51.0000000    1.04956  97.9%     -    0s
     0     0    1.58566    0   77   51.00000    1.58566  96.9%     -    0s
H    0     0                      42.0000000    1.58566  96.2%     -    0s
     0     0    1.61913    0   78   42.00000    1.61913  96.1%     -    0s
     0     0    1.62993    0   81   42.00000    1.62993  96.1%     -    0s
     0     2    1.68025    0   81   42.00000    1.68025  96.0%     -    0s
*   37    35              23      41.0000000    3.45573  91.6%  30.0    0s
H   54    42                      37.0000000    3.70924  90.0%  33.9    0s
*   56    32              10      24.0000000    3.70924  84.5%  33.6    0s

Cutting planes:
  Gomory: 4
  Mod-K: 3

Explored 765 nodes (19422 simplex iterations) in 0.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%