Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:23 2012

Optimize a model with 263 rows, 200 columns and 855 nonzeros
Presolve time: 0.00s
Presolved: 263 rows, 200 columns, 855 nonzeros
Variable types: 0 continuous, 200 integer (200 binary)
Found heuristic solution: objective 61.0000000

Root relaxation: objective 0.000000e+00, 102 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   68   61.00000    0.00000   100%     -    0s
H    0     0                      42.0000000    0.00000   100%     -    0s
     0     0    0.43129    0   70   42.00000    0.43129  99.0%     -    0s
H    0     0                      40.0000000    0.43129  98.9%     -    0s
     0     0    0.89096    0   73   40.00000    0.89096  97.8%     -    0s
H    0     0                      34.0000000    0.89096  97.4%     -    0s
     0     0    0.91105    0   73   34.00000    0.91105  97.3%     -    0s
     0     0    0.95213    0   74   34.00000    0.95213  97.2%     -    0s
     0     0    0.96734    0   76   34.00000    0.96734  97.2%     -    0s
     0     0    0.96734    0   76   34.00000    0.96734  97.2%     -    0s
     0     2    0.99160    0   76   34.00000    0.99160  97.1%     -    0s
*   33    26              21      33.0000000    3.09139  90.6%  22.9    0s
*   62    35              22      26.0000000    3.12209  88.0%  22.9    0s
*  114    62              12      25.0000000    5.57764  77.7%  25.8    0s
*  277    93              10      23.0000000   12.20383  46.9%  22.6    0s
*  582    83              12      22.0000000   14.60870  33.6%  20.3    0s

Cutting planes:
  Gomory: 4
  Zero half: 1
  Mod-K: 2

Explored 869 nodes (17229 simplex iterations) in 0.58 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%