Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:18 2012

Optimize a model with 263 rows, 177 columns and 832 nonzeros
Presolve time: 0.00s
Presolved: 263 rows, 177 columns, 832 nonzeros
Variable types: 0 continuous, 177 integer (177 binary)
Found heuristic solution: objective 62.0000000

Root relaxation: objective 0.000000e+00, 86 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   46   62.00000    0.00000   100%     -    0s
H    0     0                      60.0000000    0.00000   100%     -    0s
H    0     0                      59.0000000    0.00000   100%     -    0s
     0     0    0.56522    0   48   59.00000    0.56522  99.0%     -    0s
H    0     0                      52.0000000    0.56522  98.9%     -    0s
     0     0    0.69307    0   49   52.00000    0.69307  98.7%     -    0s
     0     0    0.77778    0   49   52.00000    0.77778  98.5%     -    0s
     0     0    0.77778    0   49   52.00000    0.77778  98.5%     -    0s
     0     0    0.77778    0   49   52.00000    0.77778  98.5%     -    0s
     0     2    0.80214    0   49   52.00000    0.80214  98.5%     -    0s
*   35    35              22      42.0000000    3.61931  91.4%  22.3    0s
*   38    32              20      41.0000000    3.61931  91.2%  20.7    0s
*   87    52              15      31.0000000    6.81481  78.0%  23.9    0s
*  108    54              12      30.0000000    7.00000  76.7%  23.1    0s

Cutting planes:
  Gomory: 1
  Zero half: 5

Explored 632 nodes (14369 simplex iterations) in 0.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%