Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:21 2012 Optimize a model with 307 rows, 326 columns and 1091 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 307 rows, 303 columns, 1068 nonzeros Variable types: 0 continuous, 303 integer (302 binary) Found heuristic solution: objective 58.0000000 Root relaxation: objective 0.000000e+00, 213 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 0 132 58.00000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s 0 0 0.18995 0 134 22.00000 0.18995 99.1% - 0s H 0 0 17.0000000 0.18995 98.9% - 0s 0 0 0.75024 0 141 17.00000 0.75024 95.6% - 0s H 0 0 16.0000000 0.75024 95.3% - 0s 0 0 0.75024 0 144 16.00000 0.75024 95.3% - 0s 0 0 0.75024 0 138 16.00000 0.75024 95.3% - 0s H 0 0 13.0000000 0.75024 94.2% - 0s 0 2 0.76055 0 138 13.00000 0.76055 94.1% - 0s * 22 15 19 2.0000000 1.00000 50.0% 55.7 0s Cutting planes: Gomory: 4 Zero half: 2 Mod-K: 2 Explored 52 nodes (2885 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%