Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:04 2012 Optimize a model with 145 rows, 106 columns and 466 nonzeros Presolve time: 0.00s Presolved: 145 rows, 106 columns, 466 nonzeros Variable types: 0 continuous, 106 integer (106 binary) Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 51 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 34 31.00000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.81250 0 36 26.00000 0.81250 96.9% - 0s H 0 0 24.0000000 0.81250 96.6% - 0s 0 0 0.83333 0 38 24.00000 0.83333 96.5% - 0s 0 0 0.87500 0 36 24.00000 0.87500 96.4% - 0s 0 0 0.88889 0 39 24.00000 0.88889 96.3% - 0s 0 0 0.94141 0 45 24.00000 0.94141 96.1% - 0s 0 0 1.00000 0 36 24.00000 1.00000 95.8% - 0s 0 0 1.00000 0 36 24.00000 1.00000 95.8% - 0s 0 2 1.02043 0 36 24.00000 1.02043 95.7% - 0s * 19 19 11 19.0000000 4.56250 76.0% 21.5 0s * 35 23 12 17.0000000 4.64423 72.7% 17.7 0s * 74 25 10 15.0000000 7.75250 48.3% 14.6 0s * 136 9 6 14.0000000 10.93333 21.9% 12.8 0s Cutting planes: Gomory: 1 Zero half: 5 Explored 146 nodes (2111 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%