Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:11 2012

Optimize a model with 77 rows, 79 columns and 269 nonzeros
Presolve removed 0 rows and 7 columns
Presolve time: 0.00s
Presolved: 77 rows, 72 columns, 262 nonzeros
Variable types: 0 continuous, 72 integer (71 binary)
Found heuristic solution: objective 14.0000000

Root relaxation: objective 0.000000e+00, 48 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   31   14.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                       6.0000000    0.00000   100%     -    0s
H    0     0                       4.0000000    0.00000   100%     -    0s
     0     0    0.31564    0   33    4.00000    0.31564  92.1%     -    0s
     0     0    0.86681    0   36    4.00000    0.86681  78.3%     -    0s
H    0     0                       3.0000000    0.86681  71.1%     -    0s
     0     0    0.86681    0   36    3.00000    0.86681  71.1%     -    0s
H    0     0                       2.0000000    0.86681  56.7%     -    0s

Explored 0 nodes (225 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%