Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:53:43 2013 Optimize a model with 825 rows, 56325 columns and 112575 nonzeros Presolve time: 0.08s Presolved: 825 rows, 56325 columns, 112575 nonzeros Variable types: 56250 continuous, 75 integer (75 binary) Root relaxation: objective 9.122180e+04, 2277 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 91221.7983 0 7 - 91221.7983 - - 0s H 0 0 97197.000000 91221.7983 6.15% - 0s 0 0 91621.2083 0 6 97197.0000 91621.2083 5.74% - 0s H 0 0 96814.000000 91621.2083 5.36% - 0s 0 0 91674.2162 0 5 96814.0000 91674.2162 5.31% - 0s 0 0 91685.0991 0 5 96814.0000 91685.0991 5.30% - 0s H 0 0 94140.000000 91685.0991 2.61% - 0s 0 0 91688.7247 0 5 94140.0000 91688.7247 2.60% - 0s 0 0 91693.0785 0 5 94140.0000 91693.0785 2.60% - 0s 0 0 91693.7331 0 4 94140.0000 91693.7331 2.60% - 0s 0 0 91694.6622 0 4 94140.0000 91694.6622 2.60% - 0s 0 0 91695.6512 0 2 94140.0000 91695.6512 2.60% - 1s H 0 0 93126.833333 91695.6512 1.54% - 1s H 0 0 92685.000000 91695.6512 1.07% - 1s H 0 0 92218.000000 91695.6512 0.57% - 1s 0 0 91695.6512 0 7 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 6 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 5 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 6 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 4 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 5 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 4 92218.0000 91695.6512 0.57% - 1s 0 0 91695.6512 0 2 92218.0000 91695.6512 0.57% - 2s 0 2 91714.0647 0 2 92218.0000 91714.0647 0.55% - 2s H 14 5 92046.000000 91828.1915 0.24% 24.6 2s * 15 5 15 92032.000000 91828.1915 0.22% 23.2 2s Cutting planes: Implied bound: 100 Flow cover: 6 Explored 39 nodes (6309 simplex iterations) in 2.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.203200000000e+04, best bound 9.203200000000e+04, gap 0.0%