Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:04:35 2012 Optimize a model with 291 rows, 195 columns and 920 nonzeros Presolve time: 0.00s Presolved: 291 rows, 195 columns, 920 nonzeros Variable types: 0 continuous, 195 integer (195 binary) Found heuristic solution: objective 63.0000000 Root relaxation: objective 0.000000e+00, 73 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 50 63.00000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s 0 0 0.84000 0 52 54.00000 0.84000 98.4% - 0s 0 0 0.86000 0 52 54.00000 0.86000 98.4% - 0s 0 0 0.96000 0 57 54.00000 0.96000 98.2% - 0s 0 0 0.96000 0 52 54.00000 0.96000 98.2% - 0s 0 0 0.98000 0 52 54.00000 0.98000 98.2% - 0s 0 0 0.98000 0 52 54.00000 0.98000 98.2% - 0s 0 0 0.98000 0 52 54.00000 0.98000 98.2% - 0s H 0 0 45.0000000 0.98000 97.8% - 0s 0 2 1.08249 0 52 45.00000 1.08249 97.6% - 0s * 40 40 25 43.0000000 6.30072 85.3% 23.3 0s * 41 39 25 42.0000000 6.30072 85.0% 23.0 0s * 102 66 19 38.0000000 10.55600 72.2% 22.9 0s * 132 83 16 37.0000000 10.61943 71.3% 22.6 0s * 711 220 29 36.0000000 20.74500 42.4% 21.7 0s Cutting planes: Gomory: 1 Zero half: 4 Explored 2446 nodes (48217 simplex iterations) in 1.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%