Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:38:43 2013 Optimize a model with 2951 rows, 676 columns and 9126 nonzeros Presolve removed 677 rows and 352 columns Presolve time: 0.02s Presolved: 2274 rows, 324 columns, 7165 nonzeros Variable types: 15 continuous, 309 integer (309 binary) Found heuristic solution: objective 15205.000000 Found heuristic solution: objective 14257.000000 Root relaxation: objective 1.095664e+04, 2083 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10956.6377 0 6 14257.0000 10956.6377 23.1% - 0s H 0 0 10977.000000 10956.6377 0.19% - 0s H 0 0 10976.000000 10956.6377 0.18% - 0s H 0 0 10971.000000 10956.6377 0.13% - 0s 0 0 10958.1475 0 13 10971.0000 10958.1475 0.12% - 0s 0 0 10958.1475 0 5 10971.0000 10958.1475 0.12% - 0s H 0 0 10962.000000 10958.1475 0.04% - 0s 0 0 10958.3295 0 15 10962.0000 10958.3295 0.03% - 0s 0 1 10958.3298 0 15 10962.0000 10958.3298 0.03% - 0s Cutting planes: Gomory: 1 Cover: 1 Implied bound: 16 MIR: 2 Explored 1 nodes (2171 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.096200000000e+04, best bound 1.096200000000e+04, gap 0.0%