Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:06 2012 Optimize a model with 241 rows, 184 columns and 784 nonzeros Presolve time: 0.00s Presolved: 241 rows, 184 columns, 784 nonzeros Variable types: 0 continuous, 184 integer (184 binary) Found heuristic solution: objective 63.0000000 Found heuristic solution: objective 59.0000000 Root relaxation: objective 0.000000e+00, 88 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 59.00000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s 0 0 0.66322 0 64 42.00000 0.66322 98.4% - 0s H 0 0 41.0000000 0.66322 98.4% - 0s 0 0 1.38359 0 65 41.00000 1.38359 96.6% - 0s H 0 0 38.0000000 1.38359 96.4% - 0s 0 0 1.55745 0 67 38.00000 1.55745 95.9% - 0s H 0 0 36.0000000 1.55745 95.7% - 0s H 0 0 34.0000000 1.55745 95.4% - 0s 0 0 1.56091 0 68 34.00000 1.56091 95.4% - 0s H 0 0 32.0000000 1.56091 95.1% - 0s 0 2 1.57512 0 68 32.00000 1.57512 95.1% - 0s * 26 24 17 26.0000000 3.02400 88.4% 29.6 0s * 51 38 16 25.0000000 3.22994 87.1% 27.1 0s * 117 69 17 24.0000000 5.66525 76.4% 25.5 0s * 151 95 17 23.0000000 7.20775 68.7% 26.6 0s * 152 88 15 22.0000000 7.20775 67.2% 26.5 0s * 339 108 11 21.0000000 11.41615 45.6% 23.3 0s Cutting planes: Gomory: 4 Zero half: 1 Mod-K: 1 Explored 894 nodes (17966 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%