Build (method = -2) #dp: 386 Step-3' Graph: 70 vertices and 203 arcs (0.00s) Step-4' Graph: 43 vertices and 149 arcs (0.00s) #V4/#V3 = 0.61 #A4/#A3 = 0.73 Ready! (0.00s) Optimize a model with 63 rows, 150 columns and 368 nonzeros Presolve removed 16 rows and 18 columns Presolve time: 0.00s Presolved: 47 rows, 132 columns, 325 nonzeros Variable types: 0 continuous, 132 integer (0 binary) Found heuristic solution: objective 1372.0000000 Found heuristic solution: objective 1314.0000000 Optimize a model with 47 rows, 132 columns and 325 nonzeros Presolved: 47 rows, 132 columns, 325 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.220e+02 Factor NZ : 7.320e+02 Factor Ops : 1.346e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.85018394e+03 -1.45828069e+04 1.39e+04 1.11e-16 2.47e+02 0s 1 1.72930316e+03 -4.98373448e+03 2.15e+03 4.44e-16 4.69e+01 0s 2 1.36609909e+03 -3.54123541e+02 4.06e+01 6.55e-15 6.55e+00 0s 3 1.24960672e+03 8.03717341e+02 9.59e-01 1.55e-15 1.64e+00 0s 4 1.22664031e+03 1.18650830e+03 2.24e-01 1.67e-16 1.48e-01 0s 5 1.22105548e+03 1.22041706e+03 6.28e-03 1.73e-16 2.35e-03 0s 6 1.22100000e+03 1.22100000e+03 1.35e-08 2.22e-16 2.09e-08 0s 7 1.22100000e+03 1.22100000e+03 2.98e-13 2.94e-16 2.15e-14 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.22100000e+03 Root relaxation: objective 1.221000e+03, 92 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1221.0000000 1221.00000 0.0% - 0s Explored 0 nodes (92 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.221000000000e+03, best bound 1.221000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 1221 Solution: 27 x [1] 156 x [1, 15] 109 x [2] 23 x [2, 20] 44 x [3, 19] 23 x [3, 20] 86 x [4] 78 x [5] 23 x [5, 20] 23 x [6] 100 x [6, 19] 8 x [6, 19, 20] 15 x [6, 20] 23 x [7] 89 x [7, 17] 34 x [7, 18] 25 x [7, 20] 39 x [8] 41 x [8, 14] 23 x [8, 16] 34 x [8, 17] 23 x [8, 20] 34 x [9] 13 x [10] 17 x [10, 12] 93 x [10, 13] 18 x [11]