Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:56 2012 Optimize a model with 299 rows, 320 columns and 1065 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 299 rows, 298 columns, 1043 nonzeros Variable types: 0 continuous, 298 integer (297 binary) Found heuristic solution: objective 54.0000000 Root relaxation: objective 0.000000e+00, 175 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 0 119 54.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 0 0.06516 0 121 39.00000 0.06516 100% - 0s H 0 0 21.0000000 0.06516 100% - 0s 0 0 0.73139 0 128 21.00000 0.73139 96.5% - 0s H 0 0 10.0000000 0.73139 92.7% - 0s 0 0 0.73139 0 128 10.00000 0.73139 92.7% - 0s 0 2 0.73509 0 128 10.00000 0.73509 92.6% - 0s * 22 11 17 4.0000000 1.00000 75.0% 32.8 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 95 nodes (3475 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%