Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:05:38 2012 Optimize a model with 371 rows, 248 columns and 1173 nonzeros Presolve time: 0.00s Presolved: 371 rows, 248 columns, 1173 nonzeros Variable types: 0 continuous, 248 integer (248 binary) Found heuristic solution: objective 87.0000000 Root relaxation: objective 0.000000e+00, 103 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 63 87.00000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s 0 0 0.60427 0 65 64.00000 0.60427 99.1% - 0s H 0 0 63.0000000 0.60427 99.0% - 0s 0 0 0.71020 0 65 63.00000 0.71020 98.9% - 0s 0 0 0.81985 0 70 63.00000 0.81985 98.7% - 0s 0 0 0.83869 0 71 63.00000 0.83869 98.7% - 0s 0 0 0.84373 0 66 63.00000 0.84373 98.7% - 0s 0 0 0.91383 0 67 63.00000 0.91383 98.5% - 0s 0 0 0.91890 0 67 63.00000 0.91890 98.5% - 0s 0 2 0.92737 0 67 63.00000 0.92737 98.5% - 0s * 50 50 32 58.0000000 5.32805 90.8% 22.6 0s * 51 49 32 56.0000000 5.32805 90.5% 22.3 0s * 84 60 20 47.0000000 5.52470 88.2% 23.2 0s * 150 93 14 44.0000000 8.47980 80.7% 23.7 0s Cutting planes: Gomory: 1 Zero half: 2 Mod-K: 2 Explored 5358 nodes (104323 simplex iterations) in 4.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%