Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:23 2012 Optimize a model with 273 rows, 298 columns and 978 nonzeros Presolve removed 0 rows and 33 columns Presolve time: 0.00s Presolved: 273 rows, 265 columns, 945 nonzeros Variable types: 0 continuous, 265 integer (264 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 0.000000e+00, 193 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 0 112 43.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.10623 0 114 31.00000 0.10623 100% - 0s H 0 0 26.0000000 0.10623 100% - 0s H 0 0 20.0000000 0.10623 99.5% - 0s 0 0 0.71046 0 121 20.00000 0.71046 96.4% - 0s H 0 0 17.0000000 0.71046 95.8% - 0s 0 0 0.71046 0 121 17.00000 0.71046 95.8% - 0s H 0 0 8.0000000 0.71046 91.1% - 0s H 0 0 7.0000000 0.71046 89.9% - 0s 0 2 0.72534 0 120 7.00000 0.72534 89.6% - 0s * 24 7 15 3.0000000 1.00000 66.7% 47.4 0s Cutting planes: Gomory: 4 Explored 35 nodes (2461 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%