Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:44 2012 Optimize a model with 43 rows, 40 columns and 145 nonzeros Presolve time: 0.00s Presolved: 43 rows, 40 columns, 145 nonzeros Variable types: 0 continuous, 40 integer (40 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 0.000000e+00, 27 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 19 7.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.64369 0 24 2.00000 0.64369 67.8% - 0s 0 0 0.81206 0 23 2.00000 0.81206 59.4% - 0s 0 2 0.82353 0 23 2.00000 0.82353 58.8% - 0s Cutting planes: Gomory: 1 Zero half: 3 Mod-K: 1 Explored 3 nodes (110 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%