Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:24:53 2012 Optimize a model with 245 rows, 266 columns and 876 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 245 rows, 240 columns, 850 nonzeros Variable types: 0 continuous, 240 integer (239 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 167 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 0 104 39.00000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s 0 0 0.20749 0 105 23.00000 0.20749 99.1% - 0s H 0 0 11.0000000 0.20749 98.1% - 0s 0 0 1.00000 0 107 11.00000 1.00000 90.9% - 0s H 0 0 7.0000000 1.00000 85.7% - 0s 0 0 1.00000 0 104 7.00000 1.00000 85.7% - 0s 0 2 1.00000 0 104 7.00000 1.00000 85.7% - 0s * 9 9 5 5.0000000 1.33863 73.2% 66.4 0s * 26 8 10 4.0000000 1.43823 64.0% 31.7 0s Cutting planes: Gomory: 3 Explored 47 nodes (1828 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%