Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:53:09 2012 Optimize a model with 3100 rows, 112 columns and 6200 nonzeros Presolve removed 2200 rows and 0 columns Presolve time: 0.09s Presolved: 900 rows, 112 columns, 6097 nonzeros Variable types: 0 continuous, 112 integer (112 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.536335e+01, 408 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.36335 0 106 7.00000 15.36335 119% - 0s H 0 0 8.0000000 15.36335 92.0% - 0s 0 0 14.82475 0 111 8.00000 14.82475 85.3% - 0s 0 0 14.76891 0 111 8.00000 14.76891 84.6% - 0s 0 0 14.73634 0 111 8.00000 14.73634 84.2% - 0s H 0 0 9.0000000 14.73634 63.7% - 0s 0 0 14.69405 0 111 9.00000 14.69405 63.3% - 0s 0 0 14.65103 0 111 9.00000 14.65103 62.8% - 0s 0 0 14.62359 0 112 9.00000 14.62359 62.5% - 1s 0 0 14.61876 0 112 9.00000 14.61876 62.4% - 1s 0 0 14.61814 0 112 9.00000 14.61814 62.4% - 1s 0 0 14.61813 0 112 9.00000 14.61813 62.4% - 1s 0 0 14.61809 0 112 9.00000 14.61809 62.4% - 1s 0 2 14.61748 0 112 9.00000 14.61748 62.4% - 1s H 243 58 10.0000000 12.65103 26.5% 63.2 2s Cutting planes: Clique: 106 Explored 304 nodes (18632 simplex iterations) in 3.06 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%