Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:29:14 2012 Optimize a model with 291 rows, 303 columns and 1028 nonzeros Presolve removed 0 rows and 27 columns Presolve time: 0.00s Presolved: 291 rows, 276 columns, 1001 nonzeros Variable types: 0 continuous, 276 integer (275 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 193 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 0 123 44.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s 0 0 0.26267 0 125 28.00000 0.26267 99.1% - 0s H 0 0 26.0000000 0.26267 99.0% - 0s H 0 0 24.0000000 0.26267 98.9% - 0s 0 0 0.83902 0 128 24.00000 0.83902 96.5% - 0s H 0 0 21.0000000 0.83902 96.0% - 0s 0 0 0.83962 0 131 21.00000 0.83962 96.0% - 0s 0 0 0.83962 0 131 21.00000 0.83962 96.0% - 0s H 0 0 16.0000000 0.83962 94.8% - 0s H 0 0 12.0000000 0.83962 93.0% - 0s 0 2 0.84251 0 129 12.00000 0.84251 93.0% - 0s * 44 27 29 8.0000000 1.00000 87.5% 16.5 0s H 81 27 7.0000000 2.12642 69.6% 15.0 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 171 nodes (3161 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%