Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:22 2012 Optimize a model with 371 rows, 368 columns and 1293 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 371 rows, 344 columns, 1269 nonzeros Variable types: 0 continuous, 344 integer (343 binary) Found heuristic solution: objective 61.0000000 Root relaxation: objective 0.000000e+00, 236 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 0 148 61.00000 0.00000 100% - 0s H 0 0 57.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s 0 0 0.23214 0 150 50.00000 0.23214 100% - 0s H 0 0 26.0000000 0.23214 99.1% - 0s 0 0 0.76894 0 153 26.00000 0.76894 97.0% - 0s H 0 0 24.0000000 0.76894 96.8% - 0s 0 0 0.76943 0 155 24.00000 0.76943 96.8% - 0s 0 0 0.76943 0 154 24.00000 0.76943 96.8% - 0s H 0 0 16.0000000 0.76943 95.2% - 0s 0 2 0.77626 0 154 16.00000 0.77626 95.1% - 0s * 38 37 26 12.0000000 1.00000 91.7% 25.0 0s * 45 26 32 11.0000000 1.00000 90.9% 25.9 0s * 124 36 11 10.0000000 5.00000 50.0% 26.6 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 217 nodes (6133 simplex iterations) in 0.25 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%