Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:17:43 2012 Optimize a model with 469 rows, 446 columns and 1616 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 469 rows, 428 columns, 1598 nonzeros Variable types: 0 continuous, 428 integer (427 binary) Found heuristic solution: objective 90.0000000 Root relaxation: objective 0.000000e+00, 272 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 0 191 90.00000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s 0 0 0.29772 0 193 54.00000 0.29772 99.4% - 0s H 0 0 45.0000000 0.29772 99.3% - 0s H 0 0 41.0000000 0.29772 99.3% - 0s H 0 0 37.0000000 0.29772 99.2% - 0s 0 0 0.82285 0 197 37.00000 0.82285 97.8% - 0s H 0 0 36.0000000 0.82285 97.7% - 0s 0 0 0.82285 0 196 36.00000 0.82285 97.7% - 0s 0 0 0.82285 0 195 36.00000 0.82285 97.7% - 0s H 0 0 33.0000000 0.82285 97.5% - 0s H 0 0 25.0000000 0.82285 96.7% - 0s 0 2 0.83370 0 195 25.00000 0.83370 96.7% - 0s * 61 43 34 13.0000000 1.00000 92.3% 32.6 0s * 78 43 10 11.0000000 2.36364 78.5% 33.4 0s Cutting planes: Gomory: 3 Zero half: 6 Explored 560 nodes (19427 simplex iterations) in 0.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%