Gurobi 5.0.1 (linux64) logging started Fri Nov 16 08:56:19 2012 Optimize a model with 14105 rows, 4290 columns and 46345 nonzeros Presolve time: 0.11s Presolved: 14105 rows, 4290 columns, 46553 nonzeros Variable types: 0 continuous, 4290 integer (4290 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 2.000000e+00, 4796 iterations, 0.27 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 130 40.00000 2.00000 95.0% - 2s H 0 0 13.0000000 2.00000 84.6% - 2s H 0 0 6.0000000 2.00000 66.7% - 2s 0 0 2.00000 0 130 6.00000 2.00000 66.7% - 4s 0 0 2.00000 0 130 6.00000 2.00000 66.7% - 11s 0 0 2.00000 0 130 6.00000 2.00000 66.7% - 19s H 0 0 5.0000000 2.00000 60.0% - 21s 0 0 2.00000 0 130 5.00000 2.00000 60.0% - 27s H 0 0 4.0000000 2.00000 50.0% - 28s 0 0 2.00000 0 130 4.00000 2.00000 50.0% - 34s 0 0 2.00000 0 130 4.00000 2.00000 50.0% - 40s 0 2 2.00000 0 130 4.00000 2.00000 50.0% - 53s 1 3 3.00000 1 616 4.00000 2.00000 50.0% 34733 63s 2 4 3.00000 1 774 4.00000 3.00000 25.0% 47160 91s 9 5 3.00000 4 126 4.00000 3.00000 25.0% 11822 95s 36 4 3.00000 3 124 4.00000 3.00000 25.0% 3506 100s 44 2 cutoff 5 4.00000 3.00000 25.0% 3297 105s Cutting planes: Clique: 151 Explored 51 nodes (247435 simplex iterations) in 109.96 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%