current bounds on the number of colors: 0 -- 217 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:20 2012 Optimize a model with 26245 rows, 23677 columns and 101520 nonzeros Presolve removed 16 rows and 1728 columns Presolve time: 0.13s Presolved: 26229 rows, 21949 columns, 99792 nonzeros Variable types: 0 continuous, 21949 integer (21949 binary) Root relaxation: objective 0.000000e+00, 367 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 (367 simplex iterations) in 0.16 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 -- 108 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:20 2012 Optimize a model with 13231 rows, 11959 columns and 50760 nonzeros Presolve removed 16 rows and 864 columns Presolve time: 0.13s Presolved: 13215 rows, 11095 columns, 49896 nonzeros Variable types: 0 continuous, 11095 integer (11095 binary) Root relaxation: objective 0.000000e+00, 367 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 (367 simplex iterations) in 0.14 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 -- 54 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:21 2012 Optimize a model with 6724 rows, 6100 columns and 25380 nonzeros Presolve removed 16 rows and 432 columns Presolve time: 0.04s Presolved: 6708 rows, 5668 columns, 24948 nonzeros Variable types: 0 continuous, 5668 integer (5668 binary) Root relaxation: objective 0.000000e+00, 366 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 (366 simplex iterations) in 0.05 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 -- 27 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:21 2012 Optimize a model with 3350 rows, 3062 columns and 12220 nonzeros Presolve removed 16 rows and 208 columns Presolve time: 0.01s Presolved: 3334 rows, 2854 columns, 12012 nonzeros Variable types: 0 continuous, 2854 integer (2854 binary) Root relaxation: objective 0.000000e+00, 383 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 (383 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:21 2012 Optimize a model with 1663 rows, 1543 columns and 5640 nonzeros Presolve removed 16 rows and 96 columns Presolve time: 0.01s Presolved: 1647 rows, 1447 columns, 5544 nonzeros Variable types: 0 continuous, 1447 integer (1447 binary) Root relaxation: objective 0.000000e+00, 356 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 (356 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 16:35:21 2012 Optimize a model with 940 rows, 892 columns and 2820 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 924 rows, 844 columns, 2772 nonzeros Variable types: 0 continuous, 844 integer (844 binary) Root relaxation: objective 0.000000e+00, 333 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 (333 simplex iterations) in 0.00 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 16:35:21 2012 Optimize a model with 458 rows, 458 columns and 940 nonzeros Presolve removed 458 rows and 458 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 16:35:21 2012 Optimize a model with 699 rows, 675 columns and 1880 nonzeros Presolve removed 223 rows and 242 columns Presolve time: 0.00s Presolved: 476 rows, 433 columns, 1428 nonzeros Variable types: 0 continuous, 433 integer (433 binary) Root relaxation: objective 0.000000e+00, 214 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 0 189 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (685 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