Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:00:02 2012 Optimize a model with 81015 rows, 61256 columns and 303067 nonzeros Presolve removed 1000 rows and 2964 columns (presolve time = 5s) ... Presolve removed 1002 rows and 2966 columns Presolve time: 7.46s Presolved: 80013 rows, 58290 columns, 296985 nonzeros Variable types: 0 continuous, 58290 integer (58290 binary) Found heuristic solution: objective 247.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 39042 3.0000900e+00 1.129375e+02 0.000000e+00 5s 45337 3.0000989e+00 3.227083e+01 0.000000e+00 10s 49201 3.0001032e+00 1.478353e+02 0.000000e+00 15s 52260 3.0001060e+00 5.897577e+02 0.000000e+00 20s 54997 3.0001077e+00 4.084577e+01 0.000000e+00 25s 57734 3.0001099e+00 2.159619e+02 0.000000e+00 30s 60471 3.0001118e+00 1.855478e+02 0.000000e+00 35s 63047 3.0001134e+00 2.192617e+01 0.000000e+00 40s 65945 3.0001155e+00 1.404234e+01 0.000000e+00 45s 68843 3.0001182e+00 1.141097e+01 0.000000e+00 50s 71258 3.0001196e+00 1.166904e+02 0.000000e+00 55s 73834 3.0001214e+00 4.705000e+02 0.000000e+00 60s 76249 3.0001229e+00 6.596149e+00 0.000000e+00 65s 78664 3.0001245e+00 1.296399e+01 0.000000e+00 70s 80757 3.0001256e+00 1.498199e+02 0.000000e+00 75s 83011 3.0001266e+00 5.202441e+01 0.000000e+00 80s 85265 3.0001277e+00 6.902078e+00 0.000000e+00 85s 87358 3.0001285e+00 1.463327e+01 0.000000e+00 90s 89612 3.0001293e+00 5.692452e+00 0.000000e+00 95s 91470 3.0000000e+00 0.000000e+00 0.000000e+00 100s Root relaxation: objective 3.000000e+00, 91470 iterations, 99.51 seconds Total elapsed time = 175.22s Total elapsed time = 180.81s Total elapsed time = 189.27s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 189s Explored 0 nodes (198479 simplex iterations) in 189.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%