current bounds on the number of colors: 0 -- 163 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:59 2012 Optimize a model with 10936 rows, 13336 columns and 45522 nonzeros Presolve removed 32 rows and 2592 columns Presolve time: 0.12s Presolved: 10904 rows, 10744 columns, 42930 nonzeros Variable types: 0 continuous, 10744 integer (10744 binary) Root relaxation: objective 0.000000e+00, 230 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 (230 simplex iterations) in 0.13 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 -- 81 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:21:59 2012 Optimize a model with 5483 rows, 6653 columns and 22480 nonzeros Presolve removed 32 rows and 1280 columns Presolve time: 0.05s Presolved: 5451 rows, 5373 columns, 21200 nonzeros Variable types: 0 continuous, 5373 integer (5373 binary) Root relaxation: objective 0.000000e+00, 231 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 (231 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 -- 40 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:00 2012 Optimize a model with 2823 rows, 3393 columns and 11240 nonzeros Presolve removed 32 rows and 640 columns Presolve time: 0.02s Presolved: 2791 rows, 2753 columns, 10600 nonzeros Variable types: 0 continuous, 2753 integer (2753 binary) Root relaxation: objective 0.000000e+00, 230 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 (230 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 -- 20 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:00 2012 Optimize a model with 1493 rows, 1763 columns and 5620 nonzeros Presolve removed 32 rows and 320 columns Presolve time: 0.01s Presolved: 1461 rows, 1443 columns, 5300 nonzeros Variable types: 0 continuous, 1443 integer (1443 binary) Root relaxation: objective 0.000000e+00, 224 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 (224 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 -- 10 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:00 2012 Optimize a model with 828 rows, 948 columns and 2810 nonzeros Presolve removed 32 rows and 160 columns Presolve time: 0.00s Presolved: 796 rows, 788 columns, 2650 nonzeros Variable types: 0 continuous, 788 integer (788 binary) Root relaxation: objective 0.000000e+00, 207 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 (207 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 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:00 2012 Optimize a model with 429 rows, 459 columns and 1124 nonzeros Presolve removed 171 rows and 207 columns Presolve time: 0.00s Presolved: 258 rows, 252 columns, 774 nonzeros Variable types: 0 continuous, 252 integer (252 binary) Root relaxation: objective 0.000000e+00, 135 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 0 115 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (403 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current bounds on the number of colors: 2 -- 5 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:22:00 2012 Optimize a model with 562 rows, 622 columns and 1686 nonzeros Presolve removed 32 rows and 96 columns Presolve time: 0.00s Presolved: 530 rows, 526 columns, 1590 nonzeros Variable types: 0 continuous, 526 integer (526 binary) Root relaxation: objective 0.000000e+00, 191 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 (191 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% optimal solution found: number of colors: 3