Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:41:51 2012

Optimize a model with 301 rows, 230 columns and 980 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 301 rows, 229 columns, 979 nonzeros
Variable types: 0 continuous, 229 integer (228 binary)
Found heuristic solution: objective 56.0000000

Root relaxation: objective 0.000000e+00, 119 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   78   56.00000    0.00000   100%     -    0s
H    0     0                      54.0000000    0.00000   100%     -    0s
H    0     0                      50.0000000    0.00000   100%     -    0s
     0     0    0.68566    0   79   50.00000    0.68566  98.6%     -    0s
H    0     0                      48.0000000    0.68566  98.6%     -    0s
     0     0    1.35983    0   81   48.00000    1.35983  97.2%     -    0s
     0     0    1.54097    0   82   48.00000    1.54097  96.8%     -    0s
     0     0    1.54305    0   82   48.00000    1.54305  96.8%     -    0s
H    0     0                      44.0000000    1.54305  96.5%     -    0s
H    0     0                      42.0000000    1.54305  96.3%     -    0s
H    0     0                      38.0000000    1.54305  95.9%     -    0s
     0     2    1.54606    0   82   38.00000    1.54606  95.9%     -    0s
H   27    26                      27.0000000    4.59059  83.0%  34.1    0s
*   28    24              19      26.0000000    4.59059  82.3%  33.1    0s
*   75    45              13      24.0000000    4.68282  80.5%  33.7    0s
*  122    78              15      22.0000000    5.28585  76.0%  35.8    0s

Cutting planes:
  Gomory: 4
  Mod-K: 1

Explored 1314 nodes (34769 simplex iterations) in 1.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%