Gurobi 5.0.1 (linux64) logging started Fri Nov 16 09:25:07 2012 Optimize a model with 14784 rows, 4422 columns and 48510 nonzeros Presolve time: 0.12s Presolved: 14784 rows, 4422 columns, 48700 nonzeros Variable types: 0 continuous, 4422 integer (4422 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 2.000000e+00, 5347 iterations, 0.41 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 132 44.00000 2.00000 95.5% - 2s H 0 0 16.0000000 2.00000 87.5% - 2s H 0 0 5.0000000 2.00000 60.0% - 2s 0 0 2.00000 0 132 5.00000 2.00000 60.0% - 3s 0 0 2.00000 0 132 5.00000 2.00000 60.0% - 9s 0 0 2.00000 0 132 5.00000 2.00000 60.0% - 16s 0 0 2.00000 0 132 5.00000 2.00000 60.0% - 27s 0 0 2.00000 0 132 5.00000 2.00000 60.0% - 37s 0 0 2.00000 0 132 5.00000 2.00000 60.0% - 42s 0 2 2.00000 0 132 5.00000 2.00000 60.0% - 62s 1 3 3.00000 1 773 5.00000 2.00000 60.0% 37301 75s 2 4 3.00000 1 702 5.00000 3.00000 40.0% 26789 84s 3 3 infeasible 2 5.00000 3.00000 40.0% 19029 85s 10 6 3.00000 5 128 5.00000 3.00000 40.0% 6997 90s * 35 5 20 4.0000000 3.00000 25.0% 2307 94s 37 5 3.00000 2 832 4.00000 3.00000 25.0% 2238 95s 44 4 3.00000 2 231 4.00000 3.00000 25.0% 2189 100s 50 2 cutoff 5 4.00000 3.00000 25.0% 2287 106s Cutting planes: Clique: 161 Explored 53 nodes (217517 simplex iterations) in 109.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%