Build (method = -2) #dp: 1406 Step-3' Graph: 73 vertices and 229 arcs (0.01s) Step-4' Graph: 16 vertices and 115 arcs (0.01s) #V4/#V3 = 0.22 #A4/#A3 = 0.50 Ready! (0.01s) Optimize a model with 70 rows, 116 columns and 320 nonzeros Presolve removed 38 rows and 44 columns Presolve time: 0.00s Presolved: 32 rows, 72 columns, 189 nonzeros Variable types: 0 continuous, 72 integer (9 binary) Found heuristic solution: objective 80.0000000 Found heuristic solution: objective 68.0000000 Optimize a model with 32 rows, 72 columns and 189 nonzeros Presolved: 32 rows, 72 columns, 189 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.100e+01 Factor NZ : 3.390e+02 Factor Ops : 4.825e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.90033193e+02 -8.08904994e+02 8.46e+01 2.22e-16 3.05e+01 0s 1 2.00966629e+02 -2.83459429e+02 1.01e+01 8.88e-16 4.82e+00 0s 2 7.53447065e+01 -9.93337055e+00 1.69e-01 3.43e-14 5.37e-01 0s 3 5.59734531e+01 2.95287846e+01 4.64e-03 8.77e-15 1.63e-01 0s 4 5.02030285e+01 4.80891350e+01 2.10e-04 2.00e-15 1.30e-02 0s 5 5.00000805e+01 4.99991754e+01 1.04e-07 1.67e-15 5.59e-06 0s 6 5.00000000e+01 5.00000000e+01 9.95e-14 8.86e-16 5.72e-12 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 5.00000000e+01 Root relaxation: objective 5.000000e+01, 36 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 50.0000000 50.00000 0.0% - 0s Explored 0 nodes (36 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.000000000000e+01, best bound 5.000000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 50 Solution: 2 x [18, 54] 1 x [17, 53] 1 x [16, 52] 1 x [13, 51] 1 x [8, 50] 2 x [22, 49] 3 x [21, 48] 3 x [6, 47] 1 x [24, 46] 2 x [4, 45] 1 x [25, 44] 2 x [3, 43] 3 x [5, 42] 1 x [30, 41] 4 x [27, 40] 1 x [33, 39] 1 x [32, 38] 1 x [2, 37] 1 x [1, 36] 1 x [5, 35] 1 x [32, 34] 1 x [30, 31] 1 x [7, 29] 1 x [26, 28] 2 x [4, 24] 2 x [20, 23] 1 x [15, 19] 2 x [12, 14] 4 x [11, 14] 2 x [9, 10]