Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:09 2012 Optimize a model with 261 rows, 282 columns and 932 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 261 rows, 257 columns, 907 nonzeros Variable types: 0 continuous, 257 integer (256 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 162 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 87 44.00000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s H 0 0 23.0000000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.00000 0 88 18.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 87 9.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 2 0.00000 0 87 4.00000 0.00000 100% - 0s * 12 5 10 2.0000000 0.45833 77.1% 50.3 0s Cutting planes: Gomory: 1 Explored 17 nodes (1454 simplex iterations) in 0.12 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%