Build (method = -2) #dp: 2151 Step-3' Graph: 55 vertices and 534 arcs (0.01s) Step-4' Graph: 55 vertices and 534 arcs (0.01s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.01s) Optimize a model with 126 rows, 535 columns and 1502 nonzeros Presolve removed 48 rows and 63 columns Presolve time: 0.01s Presolved: 78 rows, 472 columns, 1327 nonzeros Variable types: 0 continuous, 472 integer (18 binary) Found heuristic solution: objective 463.0000000 Found heuristic solution: objective 335.0000000 Optimize a model with 78 rows, 472 columns and 1327 nonzeros Presolved: 78 rows, 472 columns, 1327 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.890e+02 Factor NZ : 1.442e+03 Factor Ops : 3.200e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.92422488e+03 -9.06967712e+03 4.03e+04 1.47e-01 1.13e+02 0s 1 1.48687252e+03 -3.98196996e+03 5.78e+03 8.88e-16 1.84e+01 0s 2 5.27269567e+02 -1.13801485e+03 3.24e+02 1.29e-14 2.24e+00 0s 3 4.19707748e+02 -1.39160630e+02 2.02e+01 4.77e-15 5.92e-01 0s 4 3.45825624e+02 1.24941097e+02 6.45e-01 2.00e-15 2.28e-01 0s 5 3.04423082e+02 2.32562673e+02 7.56e-02 6.66e-16 7.40e-02 0s 6 2.98018985e+02 2.84486771e+02 3.96e-02 3.33e-16 1.39e-02 0s 7 2.93224556e+02 2.91213472e+02 5.25e-03 3.05e-16 2.07e-03 0s 8 2.92505788e+02 2.92493461e+02 1.49e-05 3.57e-16 1.27e-05 0s 9 2.92500000e+02 2.92500000e+02 1.71e-11 2.95e-16 1.62e-11 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 2.92500000e+02 Root relaxation: objective 2.925000e+02, 96 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 292.50000 0 4 335.00000 292.50000 12.7% - 0s H 0 0 293.0000000 292.50000 0.17% - 0s Explored 0 nodes (127 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.930000000000e+02, best bound 2.930000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.02 seconds Total run time: 0.04 seconds Objective: 293 Solution: 9 x [71] 5 x [70] 6 x [69] 4 x [68] 3 x [67] 11 x [66] 8 x [65] 14 x [64] 4 x [63] 4 x [62] 8 x [1, 61] 2 x [60] 4 x [2, 60] 3 x [59] 5 x [4, 58] 1 x [3, 58] 1 x [5, 57] 9 x [3, 57] 12 x [56] 5 x [6, 55] 8 x [7, 54] 2 x [5, 54] 1 x [9, 53] 6 x [8, 53] 1 x [6, 53] 4 x [10, 52] 4 x [5, 51] 8 x [12, 50] 10 x [11, 49] 4 x [14, 48] 1 x [14, 47] 9 x [13, 47] 4 x [16, 46] 6 x [15, 46] 5 x [17, 45] 1 x [16, 45] 1 x [11, 45] 6 x [18, 44] 1 x [10, 44] 6 x [19, 43] 8 x [20, 42] 2 x [19, 42] 3 x [14, 42] 9 x [21, 41] 6 x [21, 40] 5 x [23, 39] 3 x [22, 39] 3 x [24, 38] 4 x [25, 37] 6 x [26, 36] 6 x [24, 35] 1 x [34] 7 x [27, 34] 1 x [26, 34] 1 x [25, 34] 6 x [29, 33] 1 x [24, 33] 8 x [30, 32] 6 x [28, 31] 1 x [28, 28]