Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:50:42 2012 Optimize a model with 2794 rows, 107 columns and 5588 nonzeros Presolve removed 1990 rows and 0 columns Presolve time: 0.09s Presolved: 804 rows, 107 columns, 5322 nonzeros Variable types: 0 continuous, 107 integer (107 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.543982e+01, 406 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.43982 0 106 8.00000 15.43982 93.0% - 0s 0 0 15.21293 0 106 8.00000 15.21293 90.2% - 0s H 0 0 9.0000000 15.21293 69.0% - 0s 0 0 15.15492 0 106 9.00000 15.15492 68.4% - 0s 0 0 15.11942 0 106 9.00000 15.11942 68.0% - 0s 0 0 15.08622 0 107 9.00000 15.08622 67.6% - 0s H 0 0 10.0000000 15.08622 50.9% - 0s 0 0 15.06537 0 107 10.00000 15.06537 50.7% - 0s 0 0 15.04959 0 107 10.00000 15.04959 50.5% - 0s 0 0 15.04911 0 107 10.00000 15.04911 50.5% - 0s 0 0 15.04896 0 107 10.00000 15.04896 50.5% - 0s 0 0 15.04895 0 107 10.00000 15.04895 50.5% - 1s 0 2 15.04846 0 107 10.00000 15.04846 50.5% - 1s Cutting planes: Gomory: 1 Clique: 50 Zero half: 2 Explored 159 nodes (11892 simplex iterations) in 1.91 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%