Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:25:34 2012 Optimize a model with 401 rows, 264 columns and 1264 nonzeros Presolve time: 0.00s Presolved: 401 rows, 264 columns, 1264 nonzeros Variable types: 0 continuous, 264 integer (264 binary) Found heuristic solution: objective 102.0000000 Found heuristic solution: objective 88.0000000 Root relaxation: objective 0.000000e+00, 97 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 64 88.00000 0.00000 100% - 0s H 0 0 87.0000000 0.00000 100% - 0s H 0 0 81.0000000 0.00000 100% - 0s 0 0 0.66667 0 66 81.00000 0.66667 99.2% - 0s 0 0 0.81102 0 69 81.00000 0.81102 99.0% - 0s 0 0 0.87097 0 67 81.00000 0.87097 98.9% - 0s H 0 0 74.0000000 0.87097 98.8% - 0s 0 0 0.89019 0 73 74.00000 0.89019 98.8% - 0s 0 0 0.92208 0 78 74.00000 0.92208 98.8% - 0s H 0 0 71.0000000 0.92208 98.7% - 0s 0 0 0.96667 0 66 71.00000 0.96667 98.6% - 0s H 0 0 69.0000000 0.96667 98.6% - 0s 0 0 0.99157 0 70 69.00000 0.99157 98.6% - 0s 0 0 1.00000 0 66 69.00000 1.00000 98.6% - 0s 0 0 1.00456 0 77 69.00000 1.00456 98.5% - 0s 0 0 1.01667 0 66 69.00000 1.01667 98.5% - 0s 0 0 1.01667 0 66 69.00000 1.01667 98.5% - 0s 0 0 1.01667 0 66 69.00000 1.01667 98.5% - 0s 0 2 1.05000 0 66 69.00000 1.05000 98.5% - 0s H 32 32 58.0000000 5.30964 90.8% 30.6 0s H 54 44 54.0000000 5.33447 90.1% 28.4 0s * 565 334 27 53.0000000 18.66667 64.8% 21.9 0s * 1005 493 38 51.0000000 20.20000 60.4% 24.4 1s * 1012 460 35 50.0000000 20.20000 59.6% 24.3 1s * 4550 943 28 49.0000000 31.28571 36.2% 23.6 4s 5099 997 47.73684 26 121 49.00000 33.00000 32.7% 23.4 5s H 7669 1148 47.0000000 35.51351 24.4% 22.6 7s 12064 860 cutoff 25 47.00000 38.77358 17.5% 21.1 10s Explored 16283 nodes (322216 simplex iterations) in 12.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.700000000000e+01, best bound 4.700000000000e+01, gap 0.0%