Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:07:29 2013 Optimize a model with 1016 rows, 2013 columns and 7025 nonzeros Presolve removed 13 rows and 54 columns Presolve time: 0.06s Presolved: 1003 rows, 1959 columns, 5876 nonzeros Variable types: 1000 continuous, 959 integer (959 binary) Found heuristic solution: objective 2006.5285801 Root relaxation: objective 2.001636e+03, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2001.63610 0 2 2006.52858 2001.63610 0.24% - 0s 0 0 2001.88210 0 2 2006.52858 2001.88210 0.23% - 0s 0 0 2002.12576 0 2 2006.52858 2002.12576 0.22% - 0s 0 0 2002.36713 0 2 2006.52858 2002.36713 0.21% - 0s 0 0 2002.60627 0 2 2006.52858 2002.60627 0.20% - 0s 0 0 2002.84324 0 2 2006.52858 2002.84324 0.18% - 0s 0 0 2003.07808 0 2 2006.52858 2003.07808 0.17% - 0s 0 0 2003.31086 0 2 2006.52858 2003.31086 0.16% - 0s 0 0 2003.54161 0 2 2006.52858 2003.54161 0.15% - 0s 0 0 2003.77038 0 2 2006.52858 2003.77038 0.14% - 0s 0 0 2003.99723 0 2 2006.52858 2003.99723 0.13% - 0s 0 0 2004.22218 0 2 2006.52858 2004.22218 0.11% - 0s 0 0 2004.44528 0 2 2006.52858 2004.44528 0.10% - 0s 0 0 2004.66657 0 2 2006.52858 2004.66657 0.09% - 0s 0 0 2004.88609 0 2 2006.52858 2004.88609 0.08% - 0s 0 0 2005.10386 0 2 2006.52858 2005.10386 0.07% - 0s 0 0 2005.31993 0 2 2006.52858 2005.31993 0.06% - 0s 0 0 2005.53433 0 2 2006.52858 2005.53433 0.05% - 0s 0 0 2005.74709 0 2 2006.52858 2005.74709 0.04% - 0s 0 0 2005.95824 0 2 2006.52858 2005.95824 0.03% - 0s 0 0 2006.16781 0 2 2006.52858 2006.16781 0.02% - 0s 0 0 2006.37567 0 2 2006.52858 2006.37567 0.01% - 0s Explored 0 nodes (114 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.006528580123e+03, best bound 2.006375671421e+03, gap 0.0076%