Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:20:38 2012

Optimize a model with 581 rows, 518 columns and 1968 nonzeros
Presolve removed 0 rows and 16 columns
Presolve time: 0.00s
Presolved: 581 rows, 502 columns, 1952 nonzeros
Variable types: 0 continuous, 502 integer (501 binary)
Found heuristic solution: objective 111.0000000

Root relaxation: objective 0.000000e+00, 287 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  204  111.00000    0.00000   100%     -    0s
H    0     0                      90.0000000    0.00000   100%     -    0s
H    0     0                      83.0000000    0.00000   100%     -    0s
     0     0    0.42924    0  205   83.00000    0.42924  99.5%     -    0s
H    0     0                      78.0000000    0.42924  99.4%     -    0s
     0     0    0.52632    0  207   78.00000    0.52632  99.3%     -    0s
H    0     0                      77.0000000    0.52632  99.3%     -    0s
     0     0    0.98759    0  206   77.00000    0.98759  98.7%     -    0s
H    0     0                      70.0000000    0.98759  98.6%     -    0s
     0     0    0.98761    0  209   70.00000    0.98761  98.6%     -    0s
     0     0    0.98761    0  207   70.00000    0.98761  98.6%     -    0s
H    0     0                      62.0000000    0.98761  98.4%     -    0s
H    0     0                      61.0000000    0.98761  98.4%     -    0s
H    0     0                      59.0000000    0.98761  98.3%     -    0s
H    0     0                      58.0000000    0.98761  98.3%     -    0s
     0     2    0.98770    0  207   58.00000    0.98770  98.3%     -    0s
H   27    27                      55.0000000    1.00000  98.2%  49.2    0s
H   81    62                      27.0000000    1.00000  96.3%  29.5    0s
H  242   155                      26.0000000    2.33696  91.0%  36.7    0s
*  370   180              18      24.0000000    5.77757  75.9%  34.9    0s
H  562   203                      22.0000000    7.58303  65.5%  34.8    1s

Cutting planes:
  Gomory: 2
  Mod-K: 1

Explored 1513 nodes (52661 simplex iterations) in 2.83 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%