Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:55:00 2013 Optimize a model with 74992 rows, 74132 columns and 296012 nonzeros Presolve removed 86 rows and 0 columns Presolve time: 0.35s Presolved: 74906 rows, 74132 columns, 295926 nonzeros Variable types: 74046 continuous, 86 integer (86 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8585 7.5451827e+04 9.332391e+03 0.000000e+00 5s 9984 7.5807192e+04 0.000000e+00 0.000000e+00 9s Root relaxation: objective 7.580719e+04, 9984 iterations, 8.56 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 75807.1924 0 64 - 75807.1924 - - 9s H 0 0 131785.00000 75807.1924 42.5% - 17s 0 0 97247.4641 0 24 131785.000 97247.4641 26.2% - 39s 0 0 113796.371 0 10 131785.000 113796.371 13.6% - 52s H 0 0 128132.00000 113796.371 11.2% - 52s 0 0 114249.354 0 7 128132.000 114249.354 10.8% - 54s H 0 0 122777.00000 114249.354 6.95% - 54s 0 0 114268.562 0 5 122777.000 114268.562 6.93% - 55s H 0 0 120312.00000 114268.562 5.02% - 55s H 0 0 118364.77997 114268.562 3.46% - 57s H 0 0 115987.43165 114268.562 1.48% - 57s H 0 0 115225.00000 114268.562 0.83% - 57s 0 2 114271.705 0 5 115225.000 114271.705 0.83% - 59s 4 6 114427.360 3 4 115225.000 114369.563 0.74% 318 60s * 13 10 9 114662.00000 114408.129 0.22% 285 62s H 34 15 114610.00000 114429.680 0.16% 198 64s 34 17 114536.667 7 1 114610.000 114429.680 0.16% 198 65s * 94 0 8 114560.00000 114560.000 0.0% 120 68s Cutting planes: Implied bound: 85 Explored 95 nodes (38421 simplex iterations) in 68.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.145600000000e+05, best bound 1.145600000000e+05, gap 0.0%