Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:28 2012 Optimize a model with 317 rows, 325 columns and 1115 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 317 rows, 297 columns, 1087 nonzeros Variable types: 0 continuous, 297 integer (296 binary) Found heuristic solution: objective 52.0000000 Root relaxation: objective 0.000000e+00, 197 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 0 134 52.00000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.38060 0 135 38.00000 0.38060 99.0% - 0s H 0 0 28.0000000 0.38060 98.6% - 0s 0 0 1.00000 0 136 28.00000 1.00000 96.4% - 0s H 0 0 16.0000000 1.00000 93.8% - 0s 0 0 1.00000 0 136 16.00000 1.00000 93.8% - 0s H 0 0 15.0000000 1.00000 93.3% - 0s 0 0 1.03474 0 139 15.00000 1.03474 93.1% - 0s 0 0 1.12689 0 138 15.00000 1.12689 92.5% - 0s 0 0 1.12833 0 140 15.00000 1.12833 92.5% - 0s 0 0 1.12833 0 140 15.00000 1.12833 92.5% - 0s 0 2 1.13344 0 139 15.00000 1.13344 92.4% - 0s * 15 6 10 5.0000000 2.43080 51.4% 49.7 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 22 nodes (1776 simplex iterations) in 0.14 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%