Gurobi 5.0.1 (linux64) logging started Fri Nov 16 11:17:34 2012 Optimize a model with 16450 rows, 4970 columns and 54040 nonzeros Presolve time: 0.13s Presolved: 16450 rows, 4970 columns, 54138 nonzeros Variable types: 0 continuous, 4970 integer (4970 binary) Found heuristic solution: objective 45.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 16496 1.9888644e+00 6.421486e+02 0.000000e+00 5s 17645 2.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 2.000000e+00, 17645 iterations, 5.64 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 140 45.00000 2.00000 95.6% - 5s H 0 0 16.0000000 2.00000 87.5% - 5s H 0 0 5.0000000 2.00000 60.0% - 5s 0 0 2.00000 0 140 5.00000 2.00000 60.0% - 6s 0 0 2.00000 0 140 5.00000 2.00000 60.0% - 6s 0 0 2.00000 0 140 5.00000 2.00000 60.0% - 11s 0 0 2.00000 0 140 5.00000 2.00000 60.0% - 12s 0 0 2.00000 0 140 5.00000 2.00000 60.0% - 12s 0 0 2.00000 0 140 5.00000 2.00000 60.0% - 12s 0 2 2.00000 0 140 5.00000 2.00000 60.0% - 14s 1 3 3.00000 1 356 5.00000 2.01037 59.8% 25547 24s 2 4 3.00000 1 852 5.00000 3.00000 40.0% 26190 34s 4 2 infeasible 2 5.00000 3.00000 40.0% 13095 35s 6 4 3.09091 3 551 5.00000 3.00000 40.0% 12539 42s 7 5 3.14286 3 285 5.00000 3.00000 40.0% 13763 49s 10 4 4.00000 4 322 5.00000 3.00000 40.0% 10078 50s H 27 5 4.0000000 3.00000 25.0% 3942 52s 35 2 3.00000 3 132 4.00000 3.00000 25.0% 3281 55s Cutting planes: Clique: 10 Explored 38 nodes (144548 simplex iterations) in 58.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%