Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:37 2012 Optimize a model with 183 rows, 111 columns and 566 nonzeros Presolve time: 0.00s Presolved: 183 rows, 111 columns, 566 nonzeros Variable types: 0 continuous, 111 integer (111 binary) Found heuristic solution: objective 48.0000000 Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 38 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 20 43.00000 0.00000 100% - 0s 0 0 1.14856 0 30 43.00000 1.14856 97.3% - 0s H 0 0 39.0000000 1.14856 97.1% - 0s 0 0 1.25000 0 22 39.00000 1.25000 96.8% - 0s 0 0 1.33333 0 22 39.00000 1.33333 96.6% - 0s 0 0 1.33333 0 22 39.00000 1.33333 96.6% - 0s 0 0 1.33333 0 22 39.00000 1.33333 96.6% - 0s 0 0 1.33333 0 22 39.00000 1.33333 96.6% - 0s 0 2 1.63194 0 22 39.00000 1.63194 95.8% - 0s * 126 61 11 36.0000000 15.40909 57.2% 22.7 0s * 134 60 9 35.0000000 15.75000 55.0% 22.4 0s Cutting planes: Gomory: 1 Mod-K: 6 Explored 780 nodes (11746 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%