Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:24:32 2012 Optimize a model with 9680 rows, 14762 columns and 43318 nonzeros Presolve removed 31 rows and 3751 columns Presolve time: 0.16s Presolved: 9649 rows, 11011 columns, 39567 nonzeros Variable types: 0 continuous, 11011 integer (11011 binary) Found heuristic solution: objective 44.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 7809 iterations, 0.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 54 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 159 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 54 3.00000 2.00000 33.3% - 4s 0 0 2.00000 0 151 3.00000 2.00000 33.3% - 8s 0 0 2.00000 0 141 3.00000 2.00000 33.3% - 13s 0 0 2.00000 0 151 3.00000 2.00000 33.3% - 18s 0 0 2.00000 0 141 3.00000 2.00000 33.3% - 24s 0 0 2.00000 0 151 3.00000 2.00000 33.3% - 28s 0 0 2.00000 0 210 3.00000 2.00000 33.3% - 33s 0 0 2.00000 0 210 3.00000 2.00000 33.3% - 35s 0 2 2.00000 0 210 3.00000 2.00000 33.3% - 40s 6 6 2.00000 1 198 3.00000 2.00000 33.3% 3155 47s 7 6 2.00000 1 151 3.00000 2.00000 33.3% 2704 55s 8 7 2.00000 1 141 3.00000 2.00000 33.3% 2366 61s 9 8 2.00000 1 383 3.00000 2.00000 33.3% 2103 70s 10 8 2.00000 1 54 3.00000 2.00000 33.3% 1893 75s 11 9 2.00000 1 58 3.00000 2.00000 33.3% 1721 80s 12 10 2.00000 1 54 3.00000 2.00000 33.3% 1578 89s 13 10 2.00000 1 157 3.00000 2.00000 33.3% 1456 96s Cutting planes: Gomory: 1 Zero half: 23 Explored 18 nodes (506607 simplex iterations) in 99.34 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%