Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:15:56 2012 Optimize a model with 377 rows, 216 columns and 1156 nonzeros Presolve time: 0.00s Presolved: 377 rows, 216 columns, 1156 nonzeros Variable types: 0 continuous, 216 integer (216 binary) Found heuristic solution: objective 106.0000000 Found heuristic solution: objective 97.0000000 Root relaxation: objective 0.000000e+00, 58 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 28 97.00000 0.00000 100% - 0s H 0 0 96.0000000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s 0 0 0.90078 0 40 88.00000 0.90078 99.0% - 0s 0 0 0.96429 0 30 88.00000 0.96429 98.9% - 0s 0 0 1.00000 0 30 88.00000 1.00000 98.9% - 0s 0 0 1.00000 0 30 88.00000 1.00000 98.9% - 0s 0 0 1.00000 0 30 88.00000 1.00000 98.9% - 0s 0 0 1.00000 0 30 88.00000 1.00000 98.9% - 0s H 0 0 86.0000000 1.00000 98.8% - 0s 0 2 1.00932 0 30 86.00000 1.00932 98.8% - 0s * 41 23 17 83.0000000 6.48206 92.2% 34.0 0s * 220 137 24 82.0000000 19.50000 76.2% 37.8 0s H 386 213 78.0000000 26.00000 66.7% 34.0 0s * 441 228 14 77.0000000 26.83333 65.2% 32.8 0s * 821 318 28 76.0000000 31.36364 58.7% 33.6 1s * 836 298 28 75.0000000 31.36364 58.2% 33.3 1s * 1702 319 26 74.0000000 45.00000 39.2% 28.6 1s * 1710 319 30 73.0000000 45.00000 38.4% 28.6 1s H 2791 416 72.0000000 50.75000 29.5% 26.1 2s 6084 354 67.88889 23 121 72.00000 59.84211 16.9% 23.1 5s Cutting planes: Gomory: 1 Mod-K: 4 Explored 8000 nodes (174446 simplex iterations) in 6.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.200000000000e+01, best bound 7.200000000000e+01, gap 0.0%