Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:58:09 2012 Optimize a model with 373 rows, 379 columns and 1309 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 373 rows, 356 columns, 1286 nonzeros Variable types: 0 continuous, 356 integer (355 binary) Found heuristic solution: objective 66.0000000 Root relaxation: objective 0.000000e+00, 222 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 0 152 66.00000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s 0 0 0.19718 0 154 55.00000 0.19718 100% - 0s H 0 0 38.0000000 0.19718 99.5% - 0s 0 0 0.82184 0 157 38.00000 0.82184 97.8% - 0s H 0 0 20.0000000 0.82184 95.9% - 0s 0 0 0.82184 0 157 20.00000 0.82184 95.9% - 0s H 0 0 19.0000000 0.82184 95.7% - 0s H 0 0 17.0000000 0.82184 95.2% - 0s 0 2 0.82344 0 157 17.00000 0.82344 95.2% - 0s H 27 27 11.0000000 1.00000 90.9% 38.4 0s H 48 18 8.0000000 1.00000 87.5% 25.9 0s * 220 20 13 7.0000000 4.00000 42.9% 24.9 0s Cutting planes: Gomory: 3 Explored 257 nodes (7387 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%