Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:43:28 2012 Optimize a model with 315 rows, 333 columns and 1118 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 315 rows, 308 columns, 1093 nonzeros Variable types: 0 continuous, 308 integer (307 binary) Found heuristic solution: objective 58.0000000 Root relaxation: objective 0.000000e+00, 183 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 0 120 58.00000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s 0 0 0.04544 0 121 41.00000 0.04544 100% - 0s H 0 0 35.0000000 0.04544 100% - 0s H 0 0 27.0000000 0.04544 100% - 0s 0 0 1.00000 0 127 27.00000 1.00000 96.3% - 0s H 0 0 25.0000000 1.00000 96.0% - 0s 0 0 1.00000 0 125 25.00000 1.00000 96.0% - 0s H 0 0 23.0000000 1.00000 95.7% - 0s 0 0 1.00000 0 138 23.00000 1.00000 95.7% - 0s 0 0 1.00000 0 120 23.00000 1.00000 95.7% - 0s H 0 0 7.0000000 1.00000 85.7% - 0s 0 2 1.00000 0 120 7.00000 1.00000 85.7% - 0s * 21 15 13 6.0000000 1.41593 76.4% 32.1 0s * 42 11 10 5.0000000 1.66667 66.7% 21.9 0s Cutting planes: Gomory: 1 Explored 63 nodes (2558 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%