Gurobi 5.0.1 (linux64) logging started Sat Nov 17 22:03:16 2012 Optimize a model with 495 rows, 279 columns and 1514 nonzeros Presolve time: 0.00s Presolved: 495 rows, 279 columns, 1514 nonzeros Variable types: 0 continuous, 279 integer (279 binary) Found heuristic solution: objective 131.0000000 Found heuristic solution: objective 123.0000000 Root relaxation: objective 0.000000e+00, 67 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 32 123.00000 0.00000 100% - 0s H 0 0 121.0000000 0.00000 100% - 0s 0 0 0.85896 0 47 121.00000 0.85896 99.3% - 0s 0 0 1.00000 0 34 121.00000 1.00000 99.2% - 0s H 0 0 119.0000000 1.00000 99.2% - 0s H 0 0 112.0000000 1.00000 99.1% - 0s 0 0 1.00000 0 34 112.00000 1.00000 99.1% - 0s 0 0 1.03333 0 34 112.00000 1.03333 99.1% - 0s 0 0 1.03333 0 34 112.00000 1.03333 99.1% - 0s 0 0 1.03333 0 34 112.00000 1.03333 99.1% - 0s 0 0 1.03333 0 34 112.00000 1.03333 99.1% - 0s 0 2 1.08846 0 34 112.00000 1.08846 99.0% - 0s * 41 32 23 111.0000000 7.78947 93.0% 40.7 0s * 207 153 22 109.0000000 21.20000 80.6% 41.8 0s * 276 203 22 108.0000000 22.53333 79.1% 41.1 0s * 278 195 21 105.0000000 22.53333 78.5% 40.8 0s * 505 296 20 104.0000000 30.92174 70.3% 38.3 0s * 1889 606 37 103.0000000 44.52632 56.8% 34.0 2s H 2797 937 102.0000000 48.60870 52.3% 32.0 3s H 2906 963 100.0000000 49.00000 51.0% 31.9 3s H 3017 995 99.0000000 49.31579 50.2% 31.9 4s H 3100 1035 98.0000000 49.50000 49.5% 32.0 4s 3659 1168 66.26087 24 133 98.00000 53.78261 45.1% 31.3 5s 8562 2261 81.09524 26 148 98.00000 61.33333 37.4% 28.7 10s 14211 3278 94.50000 29 153 98.00000 67.36364 31.3% 27.2 15s 20438 4172 77.90476 26 148 98.00000 71.75000 26.8% 26.3 20s 27384 4906 94.21053 28 154 98.00000 74.25000 24.2% 25.3 25s 34434 5416 82.20000 27 152 98.00000 76.93750 21.5% 24.8 30s 41574 5716 91.33333 29 153 98.00000 78.80000 19.6% 24.2 35s 42603 5744 cutoff 31 98.00000 79.00000 19.4% 24.1 40s 49127 5881 91.55556 29 152 98.00000 80.33333 18.0% 23.7 45s 56279 5857 86.80000 27 152 98.00000 81.66667 16.7% 23.3 50s 63584 5450 88.78947 28 154 98.00000 83.00000 15.3% 23.1 55s 71093 4907 94.94118 30 151 98.00000 84.00000 14.3% 22.8 60s 78612 4208 94.76471 30 151 98.00000 85.00000 13.3% 22.6 65s 85920 3325 93.21053 28 154 98.00000 86.37500 11.9% 22.4 70s 94064 1933 92.52941 30 151 98.00000 89.00000 9.18% 22.2 75s Cutting planes: Gomory: 1 Mod-K: 4 Explored 99207 nodes (2173398 simplex iterations) in 77.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.800000000000e+01, best bound 9.800000000000e+01, gap 0.0%