Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:45:07 2012 Optimize a model with 433 rows, 246 columns and 1326 nonzeros Presolve time: 0.00s Presolved: 433 rows, 246 columns, 1326 nonzeros Variable types: 0 continuous, 246 integer (246 binary) Found heuristic solution: objective 108.0000000 Found heuristic solution: objective 107.0000000 Root relaxation: objective 0.000000e+00, 64 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 30 107.00000 0.00000 100% - 0s H 0 0 106.0000000 0.00000 100% - 0s H 0 0 104.0000000 0.00000 100% - 0s 0 0 1.05000 0 32 104.00000 1.05000 99.0% - 0s 0 0 1.10000 0 32 104.00000 1.10000 98.9% - 0s 0 0 1.20000 0 32 104.00000 1.20000 98.8% - 0s 0 0 1.25000 0 32 104.00000 1.25000 98.8% - 0s 0 0 1.25000 0 32 104.00000 1.25000 98.8% - 0s 0 0 1.25000 0 32 104.00000 1.25000 98.8% - 0s 0 0 1.25000 0 32 104.00000 1.25000 98.8% - 0s H 0 0 102.0000000 1.25000 98.8% - 0s 0 2 1.63793 0 32 102.00000 1.63793 98.4% - 0s * 113 76 20 100.0000000 15.00000 85.0% 34.9 0s * 168 115 24 99.0000000 15.12844 84.7% 36.2 0s H 272 184 96.0000000 22.12400 77.0% 37.8 0s * 282 181 22 93.0000000 22.12400 76.2% 36.7 0s * 343 205 19 92.0000000 23.37917 74.6% 35.3 0s * 433 261 17 89.0000000 28.35000 68.1% 35.7 0s * 823 391 33 88.0000000 33.00000 62.5% 36.2 1s * 824 374 33 87.0000000 33.00000 62.1% 36.1 1s * 826 352 30 85.0000000 33.00000 61.2% 36.0 1s * 1295 344 33 84.0000000 41.52381 50.6% 34.0 1s H 2621 575 82.0000000 50.00000 39.0% 30.5 2s 4718 833 65.38095 22 127 82.00000 55.73333 32.0% 28.3 5s 11251 1007 cutoff 25 82.00000 64.94444 20.8% 25.2 10s 19259 307 cutoff 25 82.00000 72.00000 12.2% 23.4 15s Cutting planes: Gomory: 1 Zero half: 4 Explored 20175 nodes (467146 simplex iterations) in 15.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.200000000000e+01, best bound 8.200000000000e+01, gap 0.0%