Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:22 2012 Optimize a model with 2474 rows, 100 columns and 4948 nonzeros Presolve removed 1746 rows and 0 columns Presolve time: 0.07s Presolved: 728 rows, 100 columns, 4839 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.408616e+01, 364 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.08616 0 94 7.00000 14.08616 101% - 0s H 0 0 9.0000000 14.08616 56.5% - 0s H 0 0 10.0000000 14.08616 40.9% - 0s 0 0 13.85655 0 97 10.00000 13.85655 38.6% - 0s 0 0 13.77698 0 97 10.00000 13.77698 37.8% - 0s 0 0 13.73355 0 100 10.00000 13.73355 37.3% - 0s 0 0 13.72115 0 99 10.00000 13.72115 37.2% - 0s 0 0 13.71141 0 100 10.00000 13.71141 37.1% - 0s 0 0 13.70832 0 99 10.00000 13.70832 37.1% - 0s 0 2 13.70799 0 99 10.00000 13.70799 37.1% - 1s Cutting planes: Clique: 52 Explored 67 nodes (5483 simplex iterations) in 1.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%