Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:23 2012 Optimize a model with 353 rows, 363 columns and 1243 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 353 rows, 341 columns, 1221 nonzeros Variable types: 0 continuous, 341 integer (340 binary) Found heuristic solution: objective 63.0000000 Root relaxation: objective 0.000000e+00, 209 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 0 151 63.00000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s 0 0 0.21297 0 153 40.00000 0.21297 99.5% - 0s H 0 0 27.0000000 0.21297 99.2% - 0s 0 0 0.82287 0 155 27.00000 0.82287 97.0% - 0s H 0 0 25.0000000 0.82287 96.7% - 0s H 0 0 21.0000000 0.82287 96.1% - 0s 0 0 0.82287 0 155 21.00000 0.82287 96.1% - 0s H 0 0 20.0000000 0.82287 95.9% - 0s H 0 0 16.0000000 0.82287 94.9% - 0s 0 2 0.82750 0 155 16.00000 0.82750 94.8% - 0s H 27 27 15.0000000 1.00000 93.3% 27.4 0s * 67 34 53 9.0000000 1.00000 88.9% 19.7 0s H 135 43 8.0000000 1.00000 87.5% 16.2 0s H 189 51 7.0000000 1.00000 85.7% 17.8 0s H 242 44 6.0000000 1.00000 83.3% 18.4 0s Cutting planes: Gomory: 4 Zero half: 6 Mod-K: 1 Explored 606 nodes (17916 simplex iterations) in 0.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%