Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:38:11 2012 Optimize a model with 477 rows, 332 columns and 1522 nonzeros Presolve time: 0.00s Presolved: 477 rows, 332 columns, 1522 nonzeros Variable types: 0 continuous, 332 integer (332 binary) Found heuristic solution: objective 120.0000000 Root relaxation: objective 0.000000e+00, 123 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 93 120.00000 0.00000 100% - 0s H 0 0 98.0000000 0.00000 100% - 0s H 0 0 97.0000000 0.00000 100% - 0s 0 0 0.70609 0 95 97.00000 0.70609 99.3% - 0s H 0 0 93.0000000 0.70609 99.2% - 0s 0 0 0.88650 0 96 93.00000 0.88650 99.0% - 0s H 0 0 90.0000000 0.88650 99.0% - 0s 0 0 0.95609 0 96 90.00000 0.95609 98.9% - 0s 0 0 0.95609 0 96 90.00000 0.95609 98.9% - 0s 0 0 0.95609 0 96 90.00000 0.95609 98.9% - 0s 0 2 0.96053 0 96 90.00000 0.96053 98.9% - 0s H 27 27 80.0000000 3.31821 95.9% 33.4 0s H 44 44 73.0000000 3.31821 95.5% 29.1 0s H 45 45 66.0000000 3.31821 95.0% 28.9 0s * 48 48 27 53.0000000 3.31821 93.7% 28.0 0s H 1834 762 51.0000000 20.70370 59.4% 24.9 2s 3399 1368 35.00000 23 148 51.00000 24.16667 52.6% 23.6 5s H 8157 2898 50.0000000 29.07778 41.8% 22.3 9s 8357 2946 44.94805 26 163 50.00000 29.16667 41.7% 22.3 10s 14067 4200 47.00000 28 154 50.00000 32.06849 35.9% 21.2 15s 20201 5243 48.63768 29 158 50.00000 34.00000 32.0% 20.5 20s 26044 5906 37.76923 24 146 50.00000 35.37143 29.3% 20.4 25s 32170 6225 42.92000 27 152 50.00000 36.59091 26.8% 20.5 30s 38440 6389 44.63014 26 159 50.00000 37.54167 24.9% 20.5 35s 41800 6417 49.00000 28 160 50.00000 38.04545 23.9% 20.4 45s 46438 6367 46.24675 26 160 50.00000 38.67213 22.7% 20.4 50s 52936 6153 45.62319 27 150 50.00000 39.45455 21.1% 20.4 55s 59412 5826 47.60870 27 154 50.00000 40.11268 19.8% 20.3 60s 66088 5404 46.12329 27 161 50.00000 40.76923 18.5% 20.2 65s 72447 4894 cutoff 29 50.00000 41.42857 17.1% 20.2 70s 79020 4232 47.50000 27 165 50.00000 42.16129 15.7% 20.1 75s 85683 3388 cutoff 29 50.00000 43.02326 14.0% 20.0 80s 92460 2120 48.54930 29 164 50.00000 44.54839 10.9% 19.9 85s Cutting planes: Gomory: 1 Mod-K: 3 Explored 97879 nodes (1927573 simplex iterations) in 89.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+01, best bound 5.000000000000e+01, gap 0.0%