Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:22:22 2012 Optimize a model with 205 rows, 171 columns and 681 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 205 rows, 169 columns, 679 nonzeros Variable types: 0 continuous, 169 integer (168 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 114 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 66 38.00000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.44594 0 68 30.00000 0.44594 98.5% - 0s H 0 0 24.0000000 0.44594 98.1% - 0s 0 0 0.92978 0 70 24.00000 0.92978 96.1% - 0s 0 0 0.94584 0 70 24.00000 0.94584 96.1% - 0s 0 0 0.96057 0 71 24.00000 0.96057 96.0% - 0s 0 0 0.96057 0 71 24.00000 0.96057 96.0% - 0s 0 2 0.98605 0 71 24.00000 0.98605 95.9% - 0s H 16 10 12.0000000 3.06602 74.4% 27.5 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 56 nodes (1554 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%