Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:56:50 2012 Optimize a model with 349 rows, 365 columns and 1235 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 349 rows, 339 columns, 1209 nonzeros Variable types: 0 continuous, 339 integer (338 binary) Found heuristic solution: objective 63.0000000 Root relaxation: objective 0.000000e+00, 201 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 0 136 63.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s 0 0 0.11520 0 137 40.00000 0.11520 100% - 0s H 0 0 39.0000000 0.11520 100% - 0s H 0 0 34.0000000 0.11520 100% - 0s 0 0 1.00000 0 138 34.00000 1.00000 97.1% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s 0 0 1.00000 0 146 31.00000 1.00000 96.8% - 0s 0 0 1.00000 0 138 31.00000 1.00000 96.8% - 0s H 0 0 23.0000000 1.00000 95.7% - 0s H 0 0 8.0000000 1.00000 87.5% - 0s H 0 0 7.0000000 1.00000 85.7% - 0s 0 2 1.00000 0 136 7.00000 1.00000 85.7% - 0s * 18 9 13 6.0000000 1.53789 74.4% 48.3 0s * 26 7 5 4.0000000 1.69854 57.5% 36.3 0s Cutting planes: Gomory: 2 Explored 34 nodes (2246 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%