Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:56:38 2012 Optimize a model with 9954 rows, 16002 columns and 45360 nonzeros Presolve removed 32 rows and 4032 columns Presolve time: 0.17s Presolved: 9922 rows, 11970 columns, 41328 nonzeros Variable types: 0 continuous, 11970 integer (11970 binary) Found heuristic solution: objective 39.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 9040 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 36 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 295 3.00000 2.00000 33.3% - 2s 0 0 2.00000 0 144 3.00000 2.00000 33.3% - 7s 0 0 2.00000 0 209 3.00000 2.00000 33.3% - 10s 0 0 2.00000 0 36 3.00000 2.00000 33.3% - 15s 0 0 2.00000 0 140 3.00000 2.00000 33.3% - 19s 0 0 2.00000 0 210 3.00000 2.00000 33.3% - 25s 0 0 2.00000 0 209 3.00000 2.00000 33.3% - 29s 0 0 2.00000 0 36 3.00000 2.00000 33.3% - 32s 0 0 2.00000 0 132 3.00000 2.00000 33.3% - 36s 0 0 2.00000 0 132 3.00000 2.00000 33.3% - 37s 0 2 2.00000 0 132 3.00000 2.00000 33.3% - 39s 2 3 2.00000 1 132 3.00000 2.00000 33.3% 4608 40s 5 5 2.00000 1 136 3.00000 2.00000 33.3% 1843 50s Cutting planes: Gomory: 1 Zero half: 1 Explored 5 nodes (292462 simplex iterations) in 50.15 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%