Build (method = -2) #dp: 586 Step-3' Graph: 123 vertices and 362 arcs (0.00s) Step-4' Graph: 37 vertices and 190 arcs (0.00s) #V4/#V3 = 0.30 #A4/#A3 = 0.52 Ready! (0.00s) Optimize a model with 74 rows, 191 columns and 503 nonzeros Presolve removed 27 rows and 35 columns Presolve time: 0.00s Presolved: 47 rows, 156 columns, 402 nonzeros Variable types: 0 continuous, 156 integer (20 binary) Found heuristic solution: objective 344.0000000 Found heuristic solution: objective 268.0000000 Optimize a model with 47 rows, 156 columns and 402 nonzeros Presolved: 47 rows, 156 columns, 402 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.210e+02 Factor NZ : 6.240e+02 Factor Ops : 9.500e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.46768795e+03 -2.73518838e+03 8.20e+03 1.31e-01 9.24e+01 0s 1 7.47959655e+02 -1.06344318e+03 1.12e+03 5.55e-16 1.44e+01 0s 2 3.40456091e+02 -1.02911941e+02 4.13e+01 2.94e-15 1.57e+00 0s 3 2.73869149e+02 1.62640806e+02 3.03e-01 1.94e-15 3.43e-01 0s 4 2.41749189e+02 2.28041016e+02 2.09e-02 1.50e-15 4.22e-02 0s 5 2.36433172e+02 2.35242747e+02 1.69e-03 1.63e-15 3.67e-03 0s 6 2.36000585e+02 2.35999030e+02 1.34e-06 1.97e-15 4.79e-06 0s 7 2.36000000e+02 2.36000000e+02 1.34e-12 2.85e-15 4.83e-12 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.36000000e+02 Root relaxation: objective 2.360000e+02, 45 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 236.0000000 236.00000 0.0% - 0s Explored 0 nodes (45 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.360000000000e+02, best bound 2.360000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 236 Solution: 19 x [1] 5 x [2] 11 x [3, 37] 1 x [4] 2 x [4, 37] 5 x [5, 36] 1 x [6, 36] 4 x [7, 36] 16 x [8] 1 x [8, 34] 14 x [9, 35] 15 x [10, 33] 7 x [11, 32] 10 x [11, 33] 2 x [11, 35] 1 x [11, 36] 3 x [12, 29] 15 x [12, 30] 19 x [13] 1 x [14] 2 x [14, 28] 1 x [14, 29] 9 x [15, 29] 8 x [16, 31] 2 x [17, 27] 10 x [17, 28] 2 x [18, 26] 11 x [19] 4 x [19, 26] 5 x [20, 24] 16 x [20, 25] 1 x [21, 23] 10 x [22, 23] 3 x [23, 24]