Build (method = -2) #dp: 821 Step-3' Graph: 42 vertices and 164 arcs (0.00s) Step-4' Graph: 22 vertices and 124 arcs (0.00s) #V4/#V3 = 0.52 #A4/#A3 = 0.76 Ready! (0.00s) Optimize a model with 89 rows, 125 columns and 336 nonzeros Presolve removed 64 rows and 76 columns Presolve time: 0.00s Presolved: 25 rows, 49 columns, 122 nonzeros Variable types: 0 continuous, 49 integer (2 binary) Found heuristic solution: objective 182.0000000 Found heuristic solution: objective 175.0000000 Found heuristic solution: objective 163.0000000 Optimize a model with 25 rows, 49 columns and 122 nonzeros Presolved: 25 rows, 49 columns, 122 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 4.700e+01 Factor NZ : 3.250e+02 Factor Ops : 5.525e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.16121761e+02 -2.99724928e+02 1.26e+02 2.22e-16 1.90e+01 0s 1 2.26748865e+02 2.39036809e+01 9.10e+00 2.22e-16 2.33e+00 0s 2 1.73121033e+02 9.44536343e+01 4.34e-01 2.00e-15 7.32e-01 0s 3 1.55085668e+02 1.42408385e+02 5.33e-15 3.33e-16 1.16e-01 0s 4 1.48922126e+02 1.46820030e+02 2.31e-14 2.22e-16 1.93e-02 0s 5 1.48535182e+02 1.48454874e+02 1.98e-14 3.33e-16 7.37e-04 0s 6 1.48500001e+02 1.48499997e+02 8.70e-14 3.33e-16 3.48e-08 0s 7 1.48500000e+02 1.48500000e+02 5.33e-15 3.33e-16 3.87e-14 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.48500000e+02 Root relaxation: objective 1.485000e+02, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 148.50000 0 2 163.00000 148.50000 8.90% - 0s H 0 0 149.0000000 148.50000 0.34% - 0s Explored 0 nodes (24 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.490000000000e+02, best bound 1.490000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 149 Solution: 2 x [67] 2 x [66] 2 x [65] 3 x [64] 3 x [63] 3 x [62] 5 x [61] 4 x [60] 3 x [59] 2 x [58] 2 x [57] 1 x [56] 4 x [55] 2 x [54] 4 x [53] 4 x [52] 6 x [51] 1 x [50] 3 x [49] 3 x [48] 6 x [47] 1 x [46] 3 x [45] 5 x [44] 3 x [43] 3 x [42] 2 x [41] 6 x [40] 2 x [2, 39] 5 x [38] 2 x [4, 37] 2 x [5, 36] 2 x [3, 36] 2 x [6, 35] 1 x [1, 35] 3 x [7, 34] 1 x [7, 33] 1 x [1, 32] 3 x [10, 31] 3 x [9, 30] 2 x [12, 29] 1 x [12, 28] 5 x [8, 28] 4 x [27] 1 x [10, 27] 1 x [14, 26] 4 x [11, 25] 1 x [15, 24] 4 x [13, 24] 3 x [16, 23] 2 x [18, 22] 1 x [17, 22] 1 x [14, 22] 2 x [19, 21] 1 x [19, 20] 1 x [19]