Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:29:00 2013 Optimize a model with 869 rows, 62489 columns and 124899 nonzeros Presolve time: 0.09s Presolved: 869 rows, 62489 columns, 124899 nonzeros Variable types: 62410 continuous, 79 integer (79 binary) Root relaxation: objective 9.686752e+04, 2280 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 96867.5193 0 7 - 96867.5193 - - 0s H 0 0 104476.00000 96867.5193 7.28% - 0s H 0 0 97223.000000 96867.5193 0.37% - 0s 0 0 97107.4792 0 6 97223.0000 97107.4792 0.12% - 0s 0 0 97107.4792 0 7 97223.0000 97107.4792 0.12% - 0s 0 0 97107.4792 0 6 97223.0000 97107.4792 0.12% - 1s 0 0 97140.1068 0 4 97223.0000 97140.1068 0.09% - 1s 0 0 97140.3162 0 4 97223.0000 97140.3162 0.09% - 1s 0 0 97144.1034 0 6 97223.0000 97144.1034 0.08% - 1s 0 0 97148.4954 0 4 97223.0000 97148.4954 0.08% - 1s 0 0 97149.6479 0 3 97223.0000 97149.6479 0.08% - 1s 0 0 97149.6479 0 3 97223.0000 97149.6479 0.08% - 1s 0 0 97149.6479 0 3 97223.0000 97149.6479 0.08% - 1s 0 0 97152.4768 0 3 97223.0000 97152.4768 0.07% - 1s 0 0 97152.4768 0 3 97223.0000 97152.4768 0.07% - 1s 0 0 97152.4768 0 3 97223.0000 97152.4768 0.07% - 1s 0 0 97216.3991 0 4 97223.0000 97216.3991 0.01% - 1s Cutting planes: Implied bound: 89 Flow cover: 7 Explored 0 nodes (4940 simplex iterations) in 1.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.722300000000e+04, best bound 9.721639905416e+04, gap 0.0068%