current bounds on the number of colors: 0 -- 243 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:34 2012 Optimize a model with 38721 rows, 29721 columns and 144837 nonzeros Presolve removed 11 rows and 1331 columns Presolve time: 0.19s Presolved: 38710 rows, 28390 columns, 143506 nonzeros Variable types: 0 continuous, 28390 integer (28390 binary) Root relaxation: objective 0.000000e+00, 447 iterations, 0.02 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 (447 simplex iterations) in 0.23 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 -- 121 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:35 2012 Optimize a model with 19323 rows, 14898 columns and 71820 nonzeros Presolve removed 11 rows and 660 columns Presolve time: 0.13s Presolved: 19312 rows, 14238 columns, 71160 nonzeros Variable types: 0 continuous, 14238 integer (14238 binary) Root relaxation: objective 0.000000e+00, 449 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 (687 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 -- 60 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:35 2012 Optimize a model with 9783 rows, 7608 columns and 35910 nonzeros Presolve removed 11 rows and 330 columns Presolve time: 0.06s Presolved: 9772 rows, 7278 columns, 35580 nonzeros Variable types: 0 continuous, 7278 integer (7278 binary) Root relaxation: objective 0.000000e+00, 453 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 (453 simplex iterations) in 0.07 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:35 2012 Optimize a model with 5013 rows, 3963 columns and 17955 nonzeros Presolve removed 11 rows and 165 columns Presolve time: 0.02s Presolved: 5002 rows, 3798 columns, 17790 nonzeros Variable types: 0 continuous, 3798 integer (3798 binary) Root relaxation: objective 0.000000e+00, 481 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 (754 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:35 2012 Optimize a model with 2469 rows, 2019 columns and 8379 nonzeros Presolve removed 11 rows and 77 columns Presolve time: 0.01s Presolved: 2458 rows, 1942 columns, 8302 nonzeros Variable types: 0 continuous, 1942 integer (1942 binary) Root relaxation: objective 0.000000e+00, 453 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 (453 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:45:35 2012 Optimize a model with 1197 rows, 1047 columns and 3591 nonzeros Presolve removed 11 rows and 33 columns Presolve time: 0.00s Presolved: 1186 rows, 1014 columns, 3558 nonzeros Variable types: 0 continuous, 1014 integer (1014 binary) Root relaxation: objective 0.000000e+00, 444 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 (444 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 16:45:35 2012 Optimize a model with 561 rows, 561 columns and 1197 nonzeros Presolve removed 561 rows and 561 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 16:45:35 2012 Optimize a model with 879 rows, 804 columns and 2394 nonzeros Presolve removed 249 rows and 263 columns Presolve time: 0.00s Presolved: 630 rows, 541 columns, 1890 nonzeros Variable types: 0 continuous, 541 integer (541 binary) Root relaxation: objective 0.000000e+00, 260 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 0 226 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (887 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