Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:04:20 2013 Optimize a model with 82080 rows, 81180 columns and 324180 nonzeros Presolve removed 90 rows and 0 columns Presolve time: 0.39s Presolved: 81990 rows, 81180 columns, 324090 nonzeros Variable types: 81090 continuous, 90 integer (90 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8935 7.6502767e+04 6.987242e+03 0.000000e+00 5s 10728 7.7592556e+04 7.606613e+03 0.000000e+00 10s 11622 7.7714295e+04 0.000000e+00 0.000000e+00 13s Root relaxation: objective 7.771429e+04, 11622 iterations, 12.82 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 77714.2946 0 68 - 77714.2946 - - 13s H 0 0 147125.00000 77714.2946 47.2% - 23s 0 0 103674.595 0 21 147125.000 103674.595 29.5% - 52s H 0 0 143456.00000 103674.595 27.7% - 56s 0 0 116807.962 0 5 143456.000 116807.962 18.6% - 67s H 0 0 133015.33128 116807.962 12.2% - 67s H 0 0 125732.00000 116807.962 7.10% - 67s H 0 0 125438.00000 116807.962 6.88% - 68s 0 0 118419.385 0 3 125438.000 118419.385 5.60% - 70s H 0 0 122666.71715 118419.385 3.46% - 70s H 0 0 122294.00000 118419.385 3.17% - 70s H 0 0 118658.00000 118419.385 0.20% - 70s 0 2 118422.039 0 3 118658.000 118422.039 0.20% - 73s 5 5 118525.680 4 1 118658.000 118498.586 0.13% 287 75s 38 7 cutoff 4 118658.000 118605.168 0.04% 167 80s Cutting planes: Implied bound: 88 Explored 50 nodes (38928 simplex iterations) in 81.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.186580000000e+05, best bound 1.186498232373e+05, gap 0.0069%