Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:39 2012 Optimize a model with 111 rows, 100 columns and 375 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 111 rows, 98 columns, 373 nonzeros Variable types: 0 continuous, 98 integer (97 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 54 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 40 21.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.44156 0 43 10.00000 0.44156 95.6% - 0s 0 0 0.90875 0 46 10.00000 0.90875 90.9% - 0s 0 0 0.90875 0 47 10.00000 0.90875 90.9% - 0s 0 0 0.90875 0 45 10.00000 0.90875 90.9% - 0s H 0 0 9.0000000 0.90875 89.9% - 0s 0 2 0.94212 0 45 9.00000 0.94212 89.5% - 0s * 11 6 7 8.0000000 2.47999 69.0% 14.5 0s * 34 8 6 7.0000000 3.97095 43.3% 11.6 0s * 38 4 7 5.0000000 3.97095 20.6% 11.5 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 42 nodes (683 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%