current bounds on the number of colors: 0 -- 203 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:54 2012 Optimize a model with 20201 rows, 20701 columns and 80497 nonzeros Presolve removed 31 rows and 3131 columns Presolve time: 0.13s Presolved: 20170 rows, 17570 columns, 77366 nonzeros Variable types: 0 continuous, 17570 integer (17570 binary) Root relaxation: objective 0.000000e+00, 307 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 (307 simplex iterations) in 0.15 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 -- 101 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:55 2012 Optimize a model with 10103 rows, 10348 columns and 39850 nonzeros Presolve removed 31 rows and 1550 columns Presolve time: 0.09s Presolved: 10072 rows, 8798 columns, 38300 nonzeros Variable types: 0 continuous, 8798 integer (8798 binary) Root relaxation: objective 0.000000e+00, 307 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 (307 simplex iterations) in 0.10 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:55 2012 Optimize a model with 5153 rows, 5273 columns and 19925 nonzeros Presolve removed 31 rows and 775 columns Presolve time: 0.03s Presolved: 5122 rows, 4498 columns, 19150 nonzeros Variable types: 0 continuous, 4498 integer (4498 binary) Root relaxation: objective 0.000000e+00, 311 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 (311 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 16:30:55 2012 Optimize a model with 2579 rows, 2634 columns and 9564 nonzeros Presolve removed 31 rows and 372 columns Presolve time: 0.01s Presolved: 2548 rows, 2262 columns, 9192 nonzeros Variable types: 0 continuous, 2262 integer (2262 binary) Root relaxation: objective 0.000000e+00, 303 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 (303 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:55 2012 Optimize a model with 1391 rows, 1416 columns and 4782 nonzeros Presolve removed 31 rows and 186 columns Presolve time: 0.00s Presolved: 1360 rows, 1230 columns, 4596 nonzeros Variable types: 0 continuous, 1230 integer (1230 binary) Root relaxation: objective 0.000000e+00, 301 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 (301 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 16:30:55 2012 Optimize a model with 797 rows, 807 columns and 2391 nonzeros Presolve removed 31 rows and 93 columns Presolve time: 0.00s Presolved: 766 rows, 714 columns, 2298 nonzeros Variable types: 0 continuous, 714 integer (714 binary) Root relaxation: objective 0.000000e+00, 295 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 (295 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 16:30:55 2012 Optimize a model with 401 rows, 401 columns and 797 nonzeros Presolve removed 401 rows and 401 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 16:30:55 2012 Optimize a model with 599 rows, 604 columns and 1594 nonzeros Presolve removed 211 rows and 246 columns Presolve time: 0.00s Presolved: 388 rows, 358 columns, 1164 nonzeros Variable types: 0 continuous, 358 integer (358 binary) Root relaxation: objective 0.000000e+00, 190 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 0 164 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (617 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