current bounds on the number of colors: 0 -- 206 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:44 2012 Optimize a model with 24617 rows, 21455 columns and 94451 nonzeros Presolve removed 13 rows and 1339 columns Presolve time: 0.15s Presolved: 24604 rows, 20116 columns, 93112 nonzeros Variable types: 0 continuous, 20116 integer (20116 binary) Root relaxation: objective 0.000000e+00, 371 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (570 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 103 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:44 2012 Optimize a model with 12293 rows, 10743 columns and 46767 nonzeros Presolve removed 13 rows and 663 columns Presolve time: 0.11s Presolved: 12280 rows, 10080 columns, 46104 nonzeros Variable types: 0 continuous, 10080 integer (10080 binary) Root relaxation: objective 0.000000e+00, 364 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (364 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 51 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:44 2012 Optimize a model with 6131 rows, 5387 columns and 22925 nonzeros Presolve removed 13 rows and 325 columns Presolve time: 0.04s Presolved: 6118 rows, 5062 columns, 22600 nonzeros Variable types: 0 continuous, 5062 integer (5062 binary) Root relaxation: objective 0.000000e+00, 358 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (358 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:45 2012 Optimize a model with 3050 rows, 2709 columns and 11004 nonzeros Presolve removed 13 rows and 156 columns Presolve time: 0.01s Presolved: 3037 rows, 2553 columns, 10848 nonzeros Variable types: 0 continuous, 2553 integer (2553 binary) Root relaxation: objective 0.000000e+00, 365 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (541 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:45 2012 Optimize a model with 1628 rows, 1473 columns and 5502 nonzeros Presolve removed 13 rows and 78 columns Presolve time: 0.01s Presolved: 1615 rows, 1395 columns, 5424 nonzeros Variable types: 0 continuous, 1395 integer (1395 binary) Root relaxation: objective 0.000000e+00, 374 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (537 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:45 2012 Optimize a model with 917 rows, 855 columns and 2751 nonzeros Presolve removed 13 rows and 39 columns Presolve time: 0.00s Presolved: 904 rows, 816 columns, 2712 nonzeros Variable types: 0 continuous, 816 integer (816 binary) Root relaxation: objective 0.000000e+00, 391 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (537 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:45 2012 Optimize a model with 443 rows, 443 columns and 917 nonzeros Presolve removed 443 rows and 443 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:31:45 2012 Optimize a model with 680 rows, 649 columns and 1834 nonzeros Presolve removed 210 rows and 225 columns Presolve time: 0.00s Presolved: 470 rows, 424 columns, 1410 nonzeros Variable types: 0 continuous, 424 integer (424 binary) Root relaxation: objective 0.000000e+00, 215 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 179 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (698 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3