Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:34:46 2013 Optimize a model with 78496 rows, 77616 columns and 309936 nonzeros Presolve removed 88 rows and 0 columns Presolve time: 0.37s Presolved: 78408 rows, 77616 columns, 309848 nonzeros Variable types: 77528 continuous, 88 integer (88 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7943 7.4022780e+04 1.990533e+05 0.000000e+00 5s 9476 7.4540600e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.454060e+04, 9476 iterations, 8.79 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 74540.5998 0 63 - 74540.5998 - - 9s H 0 0 124980.00000 74540.5998 40.4% - 15s H 0 0 106306.45294 74540.5998 29.9% - 40s 0 0 89791.3250 0 25 106306.453 89791.3250 15.5% - 56s 0 0 98090.8025 0 10 106306.453 98090.8025 7.73% - 64s 0 0 100499.880 0 4 106306.453 100499.880 5.46% - 67s 0 0 100829.535 0 3 106306.453 100829.535 5.15% - 68s H 0 0 102540.74929 100829.535 1.67% - 68s H 0 0 102106.00000 100829.535 1.25% - 68s H 0 0 101525.00000 100829.535 0.69% - 68s H 0 0 101249.00000 100829.535 0.41% - 69s 0 2 100834.542 0 3 101249.000 100834.542 0.41% - 69s 1 3 100898.111 1 4 101249.000 100898.111 0.35% 467 70s * 9 7 9 101067.00000 100947.344 0.12% 240 72s Cutting planes: Gomory: 1 Implied bound: 86 Explored 17 nodes (27597 simplex iterations) in 72.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.010670000000e+05, best bound 1.010670000000e+05, gap 0.0%