Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:50:22 2013 Optimize a model with 891 rows, 65691 columns and 131301 nonzeros Presolve time: 0.10s Presolved: 891 rows, 65691 columns, 131301 nonzeros Variable types: 65610 continuous, 81 integer (81 binary) Root relaxation: objective 9.909432e+04, 2491 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99094.3155 0 8 - 99094.3155 - - 0s H 0 0 110470.00000 99094.3155 10.3% - 0s H 0 0 110264.00000 99094.3155 10.1% - 0s 0 0 99499.5026 0 5 110264.000 99499.5026 9.76% - 0s H 0 0 105238.59142 99499.5026 5.45% - 0s H 0 0 104401.00000 99499.5026 4.69% - 0s 0 0 99543.6953 0 4 104401.000 99543.6953 4.65% - 0s H 0 0 104154.00000 99543.6953 4.43% - 0s 0 0 99552.8963 0 5 104154.000 99552.8963 4.42% - 0s H 0 0 101558.00000 99552.8963 1.97% - 1s 0 0 99557.7533 0 4 101558.000 99557.7533 1.97% - 1s H 0 0 101524.00000 99557.7533 1.94% - 1s 0 0 99558.1092 0 3 101524.000 99558.1092 1.94% - 1s H 0 0 100256.00000 99558.1092 0.70% - 1s 0 2 99572.8186 0 3 100256.000 99572.8186 0.68% - 1s H 8 6 100042.38710 99729.6095 0.31% 82.1 2s H 10 6 100000.00000 99729.6095 0.27% 77.4 2s * 12 5 11 99968.000000 99729.6095 0.24% 73.6 2s Cutting planes: Implied bound: 142 Flow cover: 8 Explored 28 nodes (5007 simplex iterations) in 2.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.996800000000e+04, best bound 9.996800000000e+04, gap 0.0%