Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:57:26 2012 Optimize a model with 387 rows, 385 columns and 1350 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 387 rows, 360 columns, 1325 nonzeros Variable types: 0 continuous, 360 integer (359 binary) Found heuristic solution: objective 72.0000000 Root relaxation: objective 0.000000e+00, 211 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 0 155 72.00000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s 0 0 0.32078 0 157 51.00000 0.32078 99.4% - 0s H 0 0 36.0000000 0.32078 99.1% - 0s 0 0 0.91112 0 164 36.00000 0.91112 97.5% - 0s 0 0 0.91140 0 162 36.00000 0.91140 97.5% - 0s 0 0 0.91140 0 162 36.00000 0.91140 97.5% - 0s 0 2 0.92001 0 162 36.00000 0.92001 97.4% - 0s * 27 15 16 7.0000000 2.06607 70.5% 29.1 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 61 nodes (2536 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%