Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:19:29 2012

Optimize a model with 369 rows, 273 columns and 1193 nonzeros
Presolve time: 0.00s
Presolved: 369 rows, 273 columns, 1193 nonzeros
Variable types: 0 continuous, 273 integer (273 binary)
Found heuristic solution: objective 77.0000000

Root relaxation: objective 0.000000e+00, 143 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   88   77.00000    0.00000   100%     -    0s
H    0     0                      60.0000000    0.00000   100%     -    0s
     0     0    0.58108    0   89   60.00000    0.58108  99.0%     -    0s
H    0     0                      57.0000000    0.58108  99.0%     -    0s
     0     0    0.75194    0   91   57.00000    0.75194  98.7%     -    0s
H    0     0                      55.0000000    0.75194  98.6%     -    0s
     0     0    0.76900    0   91   55.00000    0.76900  98.6%     -    0s
     0     0    0.79224    0   92   55.00000    0.79224  98.6%     -    0s
     0     0    0.79224    0   92   55.00000    0.79224  98.6%     -    0s
     0     2    0.87526    0   92   55.00000    0.87526  98.4%     -    0s
*   51    45              32      38.0000000    2.58205  93.2%  26.5    0s
*   53    37              31      37.0000000    2.58205  93.0%  25.6    0s
H  111    69                      34.0000000    5.14101  84.9%  27.0    0s
*  351   221              21      33.0000000    7.94199  75.9%  27.3    0s
*  874   305              23      32.0000000   13.10526  59.0%  27.3    1s

Explored 2867 nodes (66875 simplex iterations) in 2.96 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%