Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:20:17 2013 Optimize a model with 61776 rows, 60996 columns and 243516 nonzeros Presolve removed 78 rows and 0 columns Presolve time: 0.28s Presolved: 61698 rows, 60996 columns, 243438 nonzeros Variable types: 60918 continuous, 78 integer (78 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8018 6.7949232e+04 3.200296e+03 0.000000e+00 5s 8594 6.8027544e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.802754e+04, 8594 iterations, 6.19 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 68027.5436 0 61 - 68027.5436 - - 6s H 0 0 120333.00000 68027.5436 43.5% - 11s 0 0 88464.8815 0 21 120333.000 88464.8815 26.5% - 24s H 0 0 107831.00000 88464.8815 18.0% - 26s 0 0 94689.6695 0 5 107831.000 94689.6695 12.2% - 30s H 0 0 105000.60282 94689.6695 9.82% - 30s H 0 0 103268.00000 94689.6695 8.31% - 30s H 0 0 102236.00000 94689.6695 7.38% - 31s 0 0 95317.6345 0 5 102236.000 95317.6345 6.77% - 31s H 0 0 101794.00000 95317.6345 6.36% - 31s H 0 0 100948.00000 95317.6345 5.58% - 32s H 0 0 95953.000000 95317.6345 0.66% - 33s H 0 0 95784.639344 95317.6345 0.49% - 33s H 0 0 95688.000000 95317.6345 0.39% - 34s 0 2 95322.8198 0 5 95688.0000 95322.8198 0.38% - 35s Cutting planes: Gomory: 1 Implied bound: 75 Explored 15 nodes (23117 simplex iterations) in 37.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.568800000000e+04, best bound 9.568800000000e+04, gap 0.0%