current bounds on the number of colors: 0 -- 218 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:40 2012 Optimize a model with 26705 rows, 24005 columns and 103223 nonzeros Presolve removed 20 rows and 2180 columns Presolve time: 0.14s Presolved: 26685 rows, 21825 columns, 101043 nonzeros Variable types: 0 continuous, 21825 integer (21825 binary) Root relaxation: objective 0.000000e+00, 360 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 (360 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 -- 109 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:41 2012 Optimize a model with 13340 rows, 12015 columns and 51138 nonzeros Presolve removed 20 rows and 1080 columns Presolve time: 0.13s Presolved: 13320 rows, 10935 columns, 50058 nonzeros Variable types: 0 continuous, 10935 integer (10935 binary) Root relaxation: objective 0.000000e+00, 358 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 (358 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 16:35:41 2012 Optimize a model with 6779 rows, 6129 columns and 25569 nonzeros Presolve removed 20 rows and 540 columns Presolve time: 0.04s Presolved: 6759 rows, 5589 columns, 25029 nonzeros Variable types: 0 continuous, 5589 integer (5589 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 0.05 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 16:35:41 2012 Optimize a model with 3377 rows, 3077 columns and 12311 nonzeros Presolve removed 20 rows and 260 columns Presolve time: 0.01s Presolved: 3357 rows, 2817 columns, 12051 nonzeros Variable types: 0 continuous, 2817 integer (2817 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 0.02 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 16:35:41 2012 Optimize a model with 1676 rows, 1551 columns and 5682 nonzeros Presolve removed 20 rows and 120 columns Presolve time: 0.01s Presolved: 1656 rows, 1431 columns, 5562 nonzeros Variable types: 0 continuous, 1431 integer (1431 binary) Root relaxation: objective 0.000000e+00, 349 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 (501 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 16:35:41 2012 Optimize a model with 947 rows, 897 columns and 2841 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 927 rows, 837 columns, 2781 nonzeros Variable types: 0 continuous, 837 integer (837 binary) Root relaxation: objective 0.000000e+00, 370 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 8 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (661 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 16:35:42 2012 Optimize a model with 461 rows, 461 columns and 947 nonzeros Presolve removed 461 rows and 461 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 16:35:42 2012 Optimize a model with 704 rows, 679 columns and 1894 nonzeros Presolve removed 224 rows and 247 columns Presolve time: 0.00s Presolved: 480 rows, 432 columns, 1440 nonzeros Variable types: 0 continuous, 432 integer (432 binary) Root relaxation: objective 0.000000e+00, 218 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 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