current bounds on the number of colors: 0 -- 203 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:48 2012 Optimize a model with 23433 rows, 20733 columns and 90193 nonzeros Presolve removed 23 rows and 2323 columns Presolve time: 0.14s Presolved: 23410 rows, 18410 columns, 87870 nonzeros Variable types: 0 continuous, 18410 integer (18410 binary) Root relaxation: objective 0.000000e+00, 357 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 (547 simplex iterations) in 0.18 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 16:30:48 2012 Optimize a model with 11703 rows, 10380 columns and 44650 nonzeros Presolve removed 23 rows and 1150 columns Presolve time: 0.10s Presolved: 11680 rows, 9230 columns, 43500 nonzeros Variable types: 0 continuous, 9230 integer (9230 binary) Root relaxation: objective 0.000000e+00, 354 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 (554 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 -- 50 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:48 2012 Optimize a model with 5953 rows, 5305 columns and 22325 nonzeros Presolve removed 23 rows and 575 columns Presolve time: 0.03s Presolved: 5930 rows, 4730 columns, 21750 nonzeros Variable types: 0 continuous, 4730 integer (4730 binary) Root relaxation: objective 0.000000e+00, 347 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 (347 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 16:30:49 2012 Optimize a model with 2963 rows, 2666 columns and 10716 nonzeros Presolve removed 23 rows and 276 columns Presolve time: 0.01s Presolved: 2940 rows, 2390 columns, 10440 nonzeros Variable types: 0 continuous, 2390 integer (2390 binary) Root relaxation: objective 0.000000e+00, 348 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 (534 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:49 2012 Optimize a model with 1583 rows, 1448 columns and 5358 nonzeros Presolve removed 23 rows and 138 columns Presolve time: 0.01s Presolved: 1560 rows, 1310 columns, 5220 nonzeros Variable types: 0 continuous, 1310 integer (1310 binary) Root relaxation: objective 0.000000e+00, 319 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 (319 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 16:30:49 2012 Optimize a model with 893 rows, 839 columns and 2679 nonzeros Presolve removed 23 rows and 69 columns Presolve time: 0.00s Presolved: 870 rows, 770 columns, 2610 nonzeros Variable types: 0 continuous, 770 integer (770 binary) Root relaxation: objective 0.000000e+00, 372 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 (535 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 16:30:49 2012 Optimize a model with 433 rows, 433 columns and 893 nonzeros Presolve removed 433 rows and 433 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 16:30:49 2012 Optimize a model with 663 rows, 636 columns and 1786 nonzeros Presolve removed 209 rows and 235 columns Presolve time: 0.00s Presolved: 454 rows, 401 columns, 1362 nonzeros Variable types: 0 continuous, 401 integer (401 binary) Root relaxation: objective 0.000000e+00, 199 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 0 174 - 0.00000 - - 0s Explored 0 nodes (609 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