Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:46:55 2013 Optimize a model with 73270 rows, 72420 columns and 289170 nonzeros Presolve removed 85 rows and 0 columns Presolve time: 0.34s Presolved: 73185 rows, 72420 columns, 289085 nonzeros Variable types: 72335 continuous, 85 integer (85 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8826 7.4963202e+04 1.409540e+04 0.000000e+00 5s 10558 7.5701385e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.570138e+04, 10558 iterations, 9.74 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 75701.3848 0 67 - 75701.3848 - - 10s H 0 0 135461.00000 75701.3848 44.1% - 15s 0 0 102855.325 0 21 135461.000 102855.325 24.1% - 34s H 0 0 119074.00000 102855.325 13.6% - 36s 0 0 110588.434 0 7 119074.000 110588.434 7.13% - 40s H 0 0 115139.00000 110588.434 3.95% - 40s 0 0 111138.613 0 3 115139.000 111138.613 3.47% - 41s H 0 0 114079.32684 111138.613 2.58% - 41s H 0 0 113420.00000 111138.613 2.01% - 41s H 0 0 111220.00000 111138.613 0.07% - 42s 0 0 111142.959 0 2 111220.000 111142.959 0.07% - 42s 0 2 111143.562 0 2 111220.000 111143.562 0.07% - 44s H 1 1 111219.71930 111143.562 0.07% 0.0 44s H 2 1 111216.00000 111156.818 0.05% 65.5 45s * 5 2 4 111172.00000 111172.000 0.0% 67.0 45s Cutting planes: Implied bound: 85 Explored 6 nodes (24946 simplex iterations) in 45.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.111720000000e+05, best bound 1.111720000000e+05, gap 0.0%