Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:59 2012 Optimize a model with 241 rows, 268 columns and 868 nonzeros Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 241 rows, 238 columns, 838 nonzeros Variable types: 0 continuous, 238 integer (237 binary) Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 153 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 98 31.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.14754 0 101 17.00000 0.14754 99.1% - 0s 0 0 0.64479 0 104 17.00000 0.64479 96.2% - 0s H 0 0 14.0000000 0.64479 95.4% - 0s 0 0 0.64479 0 104 14.00000 0.64479 95.4% - 0s 0 2 0.65054 0 104 14.00000 0.65054 95.4% - 0s * 12 10 8 3.0000000 1.00000 66.7% 32.8 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 34 nodes (1464 simplex iterations) in 0.08 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%