Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:04 2012 Optimize a model with 147 rows, 91 columns and 456 nonzeros Presolve time: 0.00s Presolved: 147 rows, 91 columns, 456 nonzeros Variable types: 0 continuous, 91 integer (91 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 0.000000e+00, 30 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 18 33.00000 0.00000 100% - 0s 0 0 0.68750 0 20 33.00000 0.68750 97.9% - 0s 0 0 0.93750 0 20 33.00000 0.93750 97.2% - 0s 0 0 0.97368 0 27 33.00000 0.97368 97.0% - 0s 0 0 1.26810 0 31 33.00000 1.26810 96.2% - 0s 0 0 1.31250 0 21 33.00000 1.31250 96.0% - 0s 0 0 1.44791 0 31 33.00000 1.44791 95.6% - 0s 0 0 1.44791 0 31 33.00000 1.44791 95.6% - 0s 0 0 1.45000 0 23 33.00000 1.45000 95.6% - 0s H 0 0 31.0000000 1.45000 95.3% - 0s 0 0 1.50000 0 19 31.00000 1.50000 95.2% - 0s 0 0 1.53242 0 33 31.00000 1.53242 95.1% - 0s 0 0 1.59815 0 25 31.00000 1.59815 94.8% - 0s 0 0 1.62500 0 22 31.00000 1.62500 94.8% - 0s 0 0 1.63248 0 30 31.00000 1.63248 94.7% - 0s 0 2 1.69149 0 30 31.00000 1.69149 94.5% - 0s * 21 14 10 29.0000000 6.06818 79.1% 19.8 0s Cutting planes: Gomory: 1 Zero half: 11 Explored 744 nodes (7872 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.900000000000e+01, best bound 2.900000000000e+01, gap 0.0%