Build (method = -2) #dp: 573 Step-3' Graph: 129 vertices and 380 arcs (0.00s) Step-4' Graph: 40 vertices and 202 arcs (0.00s) #V4/#V3 = 0.31 #A4/#A3 = 0.53 Ready! (0.00s) Optimize a model with 80 rows, 203 columns and 533 nonzeros Presolve removed 30 rows and 38 columns Presolve time: 0.00s Presolved: 50 rows, 165 columns, 423 nonzeros Variable types: 0 continuous, 165 integer (0 binary) Found heuristic solution: objective 3287.0000000 Found heuristic solution: objective 2445.0000000 Optimize a model with 50 rows, 165 columns and 423 nonzeros Presolved: 50 rows, 165 columns, 423 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.400e+02 Factor NZ : 8.090e+02 Factor Ops : 1.541e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.96121439e+04 -4.04020379e+04 6.51e+04 2.22e-16 8.24e+02 0s 1 6.84420120e+03 -1.33456186e+04 8.24e+03 4.44e-16 1.27e+02 0s 2 3.53272347e+03 -7.60628471e+02 2.84e+02 6.66e-15 1.38e+01 0s 3 2.92536655e+03 1.60370518e+03 2.38e-01 2.11e-15 3.85e+00 0s 4 2.57229390e+03 2.04539628e+03 3.52e-02 5.55e-16 1.54e+00 0s 5 2.47248981e+03 2.27902980e+03 1.05e-02 5.55e-16 5.64e-01 0s 6 2.44957478e+03 2.43890273e+03 1.27e-03 4.98e-16 3.11e-02 0s 7 2.44500368e+03 2.44498479e+03 7.40e-07 3.50e-16 5.51e-05 0s Barrier performed 7 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.445000000000e+03, best bound 2.445000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 2445 Solution: 55 x [1] 136 x [2] 164 x [3, 38] 31 x [4, 36] 50 x [4, 37] 1 x [4, 38] 158 x [5] 123 x [6, 39] 69 x [7] 4 x [7, 38] 46 x [7, 39] 13 x [8, 31] 132 x [9, 35] 115 x [10, 30] 32 x [11, 30] 153 x [12] 69 x [13, 32] 43 x [13, 34] 6 x [14, 31] 22 x [14, 33] 4 x [14, 34] 50 x [14, 35] 151 x [15, 31] 28 x [16] 51 x [17, 29] 157 x [18, 27] 70 x [19, 29] 10 x [20] 3 x [20, 29] 120 x [21, 28] 96 x [22] 6 x [22, 28] 96 x [23] 22 x [23, 27] 66 x [24] 22 x [24, 40] 48 x [25, 26] 23 x [26]