Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:10 2013 Optimize a model with 100 rows, 2550 columns and 5050 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 100 rows, 2549 columns, 5049 nonzeros Variable types: 2500 continuous, 49 integer (49 binary) Root relaxation: objective 7.345451e+05, 54 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 734545.112 0 43 - 734545.112 - - 0s H 0 0 1003433.6125 734545.112 26.8% - 0s H 0 0 949241.51250 734545.112 22.6% - 0s 0 0 799815.165 0 26 949241.513 799815.165 15.7% - 0s H 0 0 873857.00000 799815.165 8.47% - 0s 0 0 815998.029 0 22 873857.000 815998.029 6.62% - 0s H 0 0 850460.13750 815998.029 4.05% - 0s 0 0 823438.370 0 13 850460.137 823438.370 3.18% - 0s H 0 0 840940.72500 823438.370 2.08% - 0s 0 0 825290.831 0 12 840940.725 825290.831 1.86% - 0s H 0 0 835243.46250 825290.831 1.19% - 0s H 0 0 827092.58750 825290.831 0.22% - 0s 0 0 825290.831 0 38 827092.587 825290.831 0.22% - 0s 0 0 825290.831 0 23 827092.587 825290.831 0.22% - 0s 0 0 825290.831 0 18 827092.587 825290.831 0.22% - 0s 0 0 825290.831 0 10 827092.587 825290.831 0.22% - 0s 0 0 825865.855 0 3 827092.587 825865.855 0.15% - 0s H 0 0 826899.77500 825865.855 0.13% - 0s 0 0 825868.425 0 3 826899.775 825868.425 0.12% - 0s * 0 0 0 826124.71250 826124.712 0.0% - 0s Cutting planes: Implied bound: 90 Flow cover: 2 Explored 0 nodes (363 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.261247125000e+05, best bound 8.261247125000e+05, gap 0.0%