Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:05:10 2013 Optimize a model with 68224 rows, 67404 columns and 269124 nonzeros Presolve removed 82 rows and 0 columns Presolve time: 0.31s Presolved: 68142 rows, 67404 columns, 269042 nonzeros Variable types: 67322 continuous, 82 integer (82 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8544 7.4676770e+04 5.671791e+04 0.000000e+00 5s 10106 7.5185381e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.518538e+04, 10106 iterations, 8.60 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 75185.3806 0 62 - 75185.3806 - - 9s H 0 0 142003.00000 75185.3806 47.1% - 15s 0 0 97950.2260 0 17 142003.000 97950.2260 31.0% - 31s H 0 0 123549.00000 97950.2260 20.7% - 32s 0 0 105427.486 0 7 123549.000 105427.486 14.7% - 36s H 0 0 118185.98718 105427.486 10.8% - 36s H 0 0 114144.00000 105427.486 7.64% - 37s 0 0 107555.965 0 5 114144.000 107555.965 5.77% - 39s H 0 0 113581.99163 107555.965 5.31% - 39s H 0 0 112580.00000 107555.965 4.46% - 39s H 0 0 107702.00000 107555.965 0.14% - 40s 0 0 107585.457 0 4 107702.000 107585.457 0.11% - 41s 0 0 107585.457 0 52 107702.000 107585.457 0.11% - 50s 0 0 107585.457 0 5 107702.000 107585.457 0.11% - 59s 0 0 107585.457 0 5 107702.000 107585.457 0.11% - 62s 0 0 107585.457 0 4 107702.000 107585.457 0.11% - 64s 0 0 107585.457 0 4 107702.000 107585.457 0.11% - 65s 0 2 107593.355 0 4 107702.000 107593.355 0.10% - 67s Cutting planes: Gomory: 3 Implied bound: 59 Explored 16 nodes (45598 simplex iterations) in 69.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.077020000000e+05, best bound 1.076930000000e+05, gap 0.0084%