Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:03:38 2012 Optimize a model with 403 rows, 401 columns and 1406 nonzeros Presolve removed 0 rows and 27 columns Presolve time: 0.00s Presolved: 403 rows, 374 columns, 1379 nonzeros Variable types: 0 continuous, 374 integer (373 binary) Found heuristic solution: objective 70.0000000 Root relaxation: objective 0.000000e+00, 275 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 0 155 70.00000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s 0 0 0.20812 0 157 58.00000 0.20812 100% - 0s H 0 0 42.0000000 0.20812 100% - 0s H 0 0 33.0000000 0.20812 99.4% - 0s 0 0 0.67398 0 160 33.00000 0.67398 98.0% - 0s H 0 0 31.0000000 0.67398 97.8% - 0s 0 0 0.67398 0 165 31.00000 0.67398 97.8% - 0s 0 0 0.67398 0 165 31.00000 0.67398 97.8% - 0s H 0 0 29.0000000 0.67398 97.7% - 0s H 0 0 26.0000000 0.67398 97.4% - 0s 0 2 0.68121 0 164 26.00000 0.68121 97.4% - 0s * 31 25 18 10.0000000 1.00000 90.0% 36.3 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 237 nodes (9979 simplex iterations) in 0.40 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%