Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:24:53 2012 Optimize a model with 205 rows, 246 columns and 756 nonzeros Presolve removed 0 rows and 38 columns Presolve time: 0.00s Presolved: 205 rows, 208 columns, 718 nonzeros Variable types: 0 continuous, 208 integer (207 binary) Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 136 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 85 31.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 86 17.00000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.00000 0 85 13.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s 0 2 0.00000 0 85 7.00000 0.00000 100% - 0s * 3 3 3 1.0000000 0.54167 45.8% 126 0s Explored 4 nodes (1093 simplex iterations) in 0.09 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%