Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:22:44 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 7761 6.8027361e+04 1.033052e+04 0.000000e+00 5s 8370 6.8125182e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.812518e+04, 8370 iterations, 6.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 68125.1820 0 60 - 68125.1820 - - 7s H 0 0 108339.00000 68125.1820 37.1% - 10s 0 0 85614.1474 0 18 108339.000 85614.1474 21.0% - 20s H 0 0 102828.00000 85614.1474 16.7% - 21s 0 0 90904.3145 0 6 102828.000 90904.3145 11.6% - 24s H 0 0 100945.00000 90904.3145 9.95% - 24s 0 0 91506.6520 0 6 100945.000 91506.6520 9.35% - 25s H 0 0 99586.000000 91506.6520 8.11% - 25s 0 0 91842.2514 0 5 99586.0000 91842.2514 7.78% - 26s 0 0 92201.5741 0 5 99586.0000 92201.5741 7.42% - 27s H 0 0 98644.159367 92201.5741 6.53% - 27s H 0 0 97462.000000 92201.5741 5.40% - 27s H 0 0 93008.000000 92201.5741 0.87% - 27s 0 2 92213.9599 0 5 93008.0000 92213.9599 0.85% - 30s H 11 9 92977.000000 92330.8151 0.69% 212 32s * 14 11 11 92800.000000 92330.8151 0.51% 227 33s H 15 6 92744.000000 92330.8151 0.45% 212 33s * 16 6 13 92738.000000 92330.8151 0.44% 213 33s * 21 6 5 92591.000000 92396.7455 0.21% 212 34s 33 4 92568.6361 7 2 92591.0000 92447.3331 0.16% 192 35s Cutting planes: Implied bound: 76 Explored 40 nodes (25724 simplex iterations) in 35.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.259100000000e+04, best bound 9.259100000000e+04, gap 0.0%