Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:58 2012 Optimize a model with 283 rows, 315 columns and 1020 nonzeros Presolve removed 0 rows and 34 columns Presolve time: 0.00s Presolved: 283 rows, 281 columns, 986 nonzeros Variable types: 0 continuous, 281 integer (280 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 0.000000e+00, 202 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 0 115 40.00000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.10435 0 116 20.00000 0.10435 99.5% - 0s H 0 0 18.0000000 0.10435 99.4% - 0s H 0 0 9.0000000 0.10435 98.8% - 0s 0 0 1.00000 0 118 9.00000 1.00000 88.9% - 0s H 0 0 4.0000000 1.00000 75.0% - 0s 0 0 1.00000 0 118 4.00000 1.00000 75.0% - 0s 0 0 1.00000 0 115 4.00000 1.00000 75.0% - 0s 0 2 1.00000 0 115 4.00000 1.00000 75.0% - 0s * 14 12 10 3.0000000 1.05255 64.9% 39.6 0s Cutting planes: Gomory: 3 Explored 41 nodes (1772 simplex iterations) in 0.11 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%