Gurobi 5.0.1 (linux64) logging started Fri Nov 16 13:04:19 2012 Optimize a model with 20002 rows, 5402 columns and 65116 nonzeros Presolve time: 0.16s Presolved: 20002 rows, 5402 columns, 65229 nonzeros Variable types: 0 continuous, 5402 integer (5402 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 2.000000e+00, 5629 iterations, 0.35 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 146 43.00000 2.00000 95.3% - 1s H 0 0 21.0000000 2.00000 90.5% - 1s H 0 0 5.0000000 2.00000 60.0% - 1s 0 0 2.00000 0 146 5.00000 2.00000 60.0% - 6s 0 0 2.00000 0 146 5.00000 2.00000 60.0% - 17s 0 0 2.00000 0 146 5.00000 2.00000 60.0% - 26s 0 0 2.00000 0 146 5.00000 2.00000 60.0% - 43s 0 0 2.00000 0 146 5.00000 2.00000 60.0% - 53s 0 0 2.00000 0 146 5.00000 2.00000 60.0% - 60s 0 2 2.00000 0 146 5.00000 2.00000 60.0% - 84s 1 3 3.00000 1 798 5.00000 2.00000 60.0% 43272 97s 2 4 3.00000 1 923 5.00000 3.00000 40.0% 36452 108s 6 2 infeasible 3 5.00000 3.00000 40.0% 12635 110s 24 12 3.00000 2 572 5.00000 3.00000 40.0% 3888 115s 27 13 4.00000 4 140 5.00000 3.00000 40.0% 3918 120s H 57 3 4.0000000 4.00000 0.0% 2079 129s Cutting planes: Clique: 210 Explored 57 nodes (244489 simplex iterations) in 129.78 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%