Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:04:29 2012 Optimize a model with 415 rows, 408 columns and 1443 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 415 rows, 382 columns, 1417 nonzeros Variable types: 0 continuous, 382 integer (381 binary) Found heuristic solution: objective 83.0000000 Root relaxation: objective 0.000000e+00, 241 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 0 172 83.00000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 57.0000000 0.00000 100% - 0s 0 0 0.41739 0 174 57.00000 0.41739 99.3% - 0s H 0 0 55.0000000 0.41739 99.2% - 0s 0 0 0.66667 0 176 55.00000 0.66667 98.8% - 0s H 0 0 45.0000000 0.66667 98.5% - 0s H 0 0 42.0000000 0.66667 98.4% - 0s 0 0 0.66667 0 176 42.00000 0.66667 98.4% - 0s H 0 0 39.0000000 0.66667 98.3% - 0s 0 0 0.66667 0 175 39.00000 0.66667 98.3% - 0s H 0 0 36.0000000 0.66667 98.1% - 0s 0 0 0.66667 0 175 36.00000 0.66667 98.1% - 0s H 0 0 32.0000000 0.66667 97.9% - 0s H 0 0 28.0000000 0.66667 97.6% - 0s H 0 0 25.0000000 0.66667 97.3% - 0s 0 2 0.66880 0 175 25.00000 0.66880 97.3% - 0s H 24 24 9.0000000 0.93511 89.6% 44.0 0s Cutting planes: Gomory: 2 Zero half: 1 Mod-K: 2 Explored 207 nodes (9236 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%