Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:52 2012

Optimize a model with 155 rows, 94 columns and 479 nonzeros
Presolve time: 0.00s
Presolved: 155 rows, 94 columns, 479 nonzeros
Variable types: 0 continuous, 94 integer (94 binary)
Found heuristic solution: objective 40.0000000

Root relaxation: objective 0.000000e+00, 27 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   17   40.00000    0.00000   100%     -    0s
     0     0    0.80672    0   19   40.00000    0.80672  98.0%     -    0s
H    0     0                      35.0000000    0.80672  97.7%     -    0s
     0     0    0.89025    0   30   35.00000    0.89025  97.5%     -    0s
     0     0    0.95798    0   19   35.00000    0.95798  97.3%     -    0s
     0     0    0.95798    0   19   35.00000    0.95798  97.3%     -    0s
     0     0    0.95798    0   19   35.00000    0.95798  97.3%     -    0s
     0     2    1.20000    0   19   35.00000    1.20000  96.6%     -    0s
*   40    21              10      34.0000000    5.57143  83.6%  15.0    0s
*   62    25               8      33.0000000   10.23810  69.0%  15.1    0s
*  129    44              13      32.0000000   15.71429  50.9%  13.6    0s
*  167    41              10      31.0000000   16.07692  48.1%  12.8    0s

Cutting planes:
  Gomory: 1
  Mod-K: 5

Explored 370 nodes (4234 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%