Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:53 2012 Optimize a model with 259 rows, 290 columns and 935 nonzeros Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 259 rows, 258 columns, 903 nonzeros Variable types: 0 continuous, 258 integer (257 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 0.000000e+00, 172 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 0 105 39.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s 0 0 0.05952 0 107 21.00000 0.05952 100% - 0s H 0 0 16.0000000 0.05952 100% - 0s H 0 0 14.0000000 0.05952 100% - 0s H 0 0 9.0000000 0.05952 99.3% - 0s 0 0 0.78883 0 113 9.00000 0.78883 91.2% - 0s H 0 0 8.0000000 0.78883 90.1% - 0s 0 0 0.78883 0 115 8.00000 0.78883 90.1% - 0s 0 0 0.78883 0 109 8.00000 0.78883 90.1% - 0s H 0 0 6.0000000 0.78883 86.9% - 0s H 0 0 3.0000000 0.78883 73.7% - 0s 0 2 0.92532 0 109 3.00000 0.92532 69.2% - 0s * 15 3 9 2.0000000 2.00000 0.0% 30.1 0s Cutting planes: Gomory: 3 Explored 16 nodes (1216 simplex iterations) in 0.08 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%