Build (method = -2) #dp: 1516 Step-3' Graph: 75 vertices and 236 arcs (0.01s) Step-4' Graph: 19 vertices and 124 arcs (0.01s) #V4/#V3 = 0.25 #A4/#A3 = 0.53 Ready! (0.01s) Optimize a model with 74 rows, 125 columns and 341 nonzeros Presolve removed 35 rows and 42 columns Presolve time: 0.00s Presolved: 39 rows, 83 columns, 214 nonzeros Variable types: 0 continuous, 83 integer (5 binary) Found heuristic solution: objective 83.0000000 Found heuristic solution: objective 68.0000000 Optimize a model with 39 rows, 83 columns and 214 nonzeros Presolved: 39 rows, 83 columns, 214 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.500e+01 Factor NZ : 5.200e+02 Factor Ops : 1.049e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.07892152e+03 -1.17894095e+03 4.19e+01 2.22e-16 4.00e+01 0s 1 2.88819214e+02 -3.95113007e+02 8.43e+00 8.88e-16 6.76e+00 0s 2 8.03789160e+01 -5.28876487e+01 2.02e-01 9.10e-15 7.49e-01 0s 3 5.67826520e+01 2.11897433e+01 3.15e-03 2.66e-15 1.88e-01 0s 4 5.02687910e+01 4.69080790e+01 1.22e-04 5.55e-16 1.78e-02 0s 5 5.00001328e+01 4.99983936e+01 8.09e-08 3.33e-16 9.20e-06 0s 6 5.00000000e+01 5.00000000e+01 6.53e-14 4.44e-16 9.54e-12 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 5.00000000e+01 Root relaxation: objective 5.000000e+01, 40 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 (40 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: 1 x [18, 55] 1 x [17, 54] 1 x [10, 53] 2 x [19, 52] 1 x [10, 51] 1 x [8, 50] 2 x [21, 49] 1 x [6, 48] 1 x [24, 47] 1 x [5, 46] 2 x [26, 45] 3 x [25, 44] 1 x [4, 43] 1 x [3, 42] 1 x [32, 41] 2 x [33, 40] 2 x [35, 39] 2 x [36, 38] 3 x [34, 37] 1 x [32, 35] 1 x [3, 31] 1 x [1, 30] 2 x [11, 29] 1 x [4, 28] 1 x [5, 27] 1 x [5, 25] 1 x [7, 23] 1 x [9, 22] 3 x [12, 20] 3 x [13, 16] 3 x [2, 15] 2 x [13, 14]