Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:05:25 2012 Optimize a model with 429 rows, 416 columns and 1486 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 429 rows, 394 columns, 1464 nonzeros Variable types: 0 continuous, 394 integer (393 binary) Found heuristic solution: objective 77.0000000 Root relaxation: objective 0.000000e+00, 240 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 0 167 77.00000 0.00000 100% - 0s H 0 0 56.0000000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s 0 0 0.30028 0 170 49.00000 0.30028 99.4% - 0s H 0 0 46.0000000 0.30028 99.3% - 0s H 0 0 44.0000000 0.30028 99.3% - 0s 0 0 0.95293 0 172 44.00000 0.95293 97.8% - 0s H 0 0 41.0000000 0.95293 97.7% - 0s H 0 0 27.0000000 0.95293 96.5% - 0s 0 0 0.95513 0 175 27.00000 0.95513 96.5% - 0s 0 0 0.95513 0 175 27.00000 0.95513 96.5% - 0s H 0 0 26.0000000 0.95513 96.3% - 0s 0 2 0.95616 0 174 26.00000 0.95616 96.3% - 0s * 46 37 27 14.0000000 1.04378 92.5% 26.8 0s * 86 41 30 12.0000000 1.25073 89.6% 25.2 0s * 181 57 11 11.0000000 1.41944 87.1% 29.4 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 453 nodes (14163 simplex iterations) in 0.54 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%