Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:59 2012 Optimize a model with 85 rows, 81 columns and 291 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 85 rows, 79 columns, 289 nonzeros Variable types: 0 continuous, 79 integer (78 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 50 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 36 16.00000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.31776 0 38 9.00000 0.31776 96.5% - 0s H 0 0 8.0000000 0.31776 96.0% - 0s 0 0 0.95098 0 44 8.00000 0.95098 88.1% - 0s H 0 0 4.0000000 0.95098 76.2% - 0s H 0 0 3.0000000 0.95098 68.3% - 0s 0 0 0.95788 0 45 3.00000 0.95788 68.1% - 0s 0 0 0.95788 0 45 3.00000 0.95788 68.1% - 0s 0 2 0.96110 0 45 3.00000 0.96110 68.0% - 0s Cutting planes: Gomory: 4 Mod-K: 3 Explored 43 nodes (878 simplex iterations) in 0.03 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%