Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:15:16 2012 Optimize a model with 383 rows, 219 columns and 1174 nonzeros Presolve time: 0.00s Presolved: 383 rows, 219 columns, 1174 nonzeros Variable types: 0 continuous, 219 integer (219 binary) Found heuristic solution: objective 101.0000000 Root relaxation: objective 0.000000e+00, 57 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 28 101.00000 0.00000 100% - 0s H 0 0 92.0000000 0.00000 100% - 0s H 0 0 91.0000000 0.00000 100% - 0s H 0 0 90.0000000 0.00000 100% - 0s 0 0 0.95833 0 30 90.00000 0.95833 98.9% - 0s 0 0 1.01818 0 45 90.00000 1.01818 98.9% - 0s 0 0 1.08333 0 30 90.00000 1.08333 98.8% - 0s 0 0 1.08333 0 30 90.00000 1.08333 98.8% - 0s 0 0 1.08333 0 30 90.00000 1.08333 98.8% - 0s 0 0 1.08333 0 30 90.00000 1.08333 98.8% - 0s 0 2 1.15787 0 30 90.00000 1.15787 98.7% - 0s * 227 152 16 87.0000000 21.33333 75.5% 34.5 0s * 259 161 23 83.0000000 23.41667 71.8% 32.7 0s * 1065 384 32 82.0000000 32.21111 60.7% 27.9 1s * 1232 383 32 80.0000000 38.35294 52.1% 27.5 1s * 1339 348 36 79.0000000 38.50000 51.3% 26.8 1s * 1342 327 32 78.0000000 38.50000 50.6% 26.7 1s H 1875 439 77.0000000 43.16667 43.9% 25.8 1s H 1929 450 74.0000000 43.40000 41.4% 25.8 1s H 5062 815 73.0000000 52.45455 28.1% 23.2 4s 6116 887 cutoff 25 73.00000 54.00000 26.0% 22.6 5s 15138 337 71.00000 25 118 73.00000 64.00000 12.3% 20.5 10s Cutting planes: Gomory: 1 Mod-K: 2 Explored 16020 nodes (323529 simplex iterations) in 10.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.300000000000e+01, best bound 7.300000000000e+01, gap 0.0%