Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:06 2012 Optimize a model with 309 rows, 318 columns and 1088 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 309 rows, 295 columns, 1065 nonzeros Variable types: 0 continuous, 295 integer (294 binary) Found heuristic solution: objective 50.0000000 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 0 127 50.00000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.28061 0 129 32.00000 0.28061 99.1% - 0s H 0 0 24.0000000 0.28061 98.8% - 0s 0 0 0.80084 0 131 24.00000 0.80084 96.7% - 0s H 0 0 22.0000000 0.80084 96.4% - 0s H 0 0 19.0000000 0.80084 95.8% - 0s 0 0 0.80095 0 134 19.00000 0.80095 95.8% - 0s 0 0 0.80095 0 133 19.00000 0.80095 95.8% - 0s H 0 0 14.0000000 0.80095 94.3% - 0s 0 2 0.80159 0 133 14.00000 0.80159 94.3% - 0s H 27 27 12.0000000 1.00000 91.7% 33.2 0s H 29 15 6.0000000 1.00000 83.3% 31.1 0s * 42 13 7 5.0000000 1.00000 80.0% 30.6 0s Cutting planes: Gomory: 4 Zero half: 6 Mod-K: 1 Explored 105 nodes (3851 simplex iterations) in 0.17 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%