Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:32 2012 Optimize a model with 259 rows, 289 columns and 934 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 259 rows, 261 columns, 906 nonzeros Variable types: 0 continuous, 261 integer (260 binary) Found heuristic solution: objective 49.0000000 Root relaxation: objective 0.000000e+00, 189 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 0 111 49.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.09592 0 112 20.00000 0.09592 100% - 0s H 0 0 17.0000000 0.09592 99.4% - 0s 0 0 1.00000 0 111 17.00000 1.00000 94.1% - 0s H 0 0 4.0000000 1.00000 75.0% - 0s 0 0 1.00000 0 51 4.00000 1.00000 75.0% - 0s H 0 0 1.0000000 1.00000 0.0% - 0s Cutting planes: Gomory: 1 Mod-K: 1 Explored 0 nodes (662 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%