Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:26:52 2012 Optimize a model with 10285 rows, 14762 columns and 45133 nonzeros Presolve removed 25 rows and 3025 columns Presolve time: 0.17s Presolved: 10260 rows, 11737 columns, 42108 nonzeros Variable types: 0 continuous, 11737 integer (11737 binary) Found heuristic solution: objective 40.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 8551 iterations, 0.28 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 114 3.00000 2.00000 33.3% - 1s 0 0 2.00000 0 311 3.00000 2.00000 33.3% - 3s 0 0 2.00000 0 114 3.00000 2.00000 33.3% - 8s 0 0 2.00000 0 207 3.00000 2.00000 33.3% - 15s 0 0 2.00000 0 217 3.00000 2.00000 33.3% - 22s 0 0 2.00000 0 207 3.00000 2.00000 33.3% - 28s 0 0 2.00000 0 217 3.00000 2.00000 33.3% - 31s 0 0 2.00000 0 209 3.00000 2.00000 33.3% - 37s 0 0 2.00000 0 252 3.00000 2.00000 33.3% - 42s 0 0 2.00000 0 252 3.00000 2.00000 33.3% - 45s 0 2 2.00000 0 252 3.00000 2.00000 33.3% - 51s 5 5 2.00000 1 310 3.00000 2.00000 33.3% 2999 65s 6 6 2.00000 1 114 3.00000 2.00000 33.3% 2499 72s 7 6 2.00000 1 114 3.00000 2.00000 33.3% 2142 84s 8 7 2.00000 1 114 3.00000 2.00000 33.3% 1874 92s 9 8 2.00000 1 124 3.00000 2.00000 33.3% 1666 104s 10 8 2.00000 1 124 3.00000 2.00000 33.3% 1500 107s 12 10 infeasible 12 3.00000 2.00000 33.3% 19059 111s Cutting planes: Zero half: 21 Explored 14 nodes (449468 simplex iterations) in 111.91 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%