current bounds on the number of colors: 0 -- 200 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:10 2012 Optimize a model with 23000 rows, 20228 columns and 88400 nonzeros Presolve removed 23 rows and 2300 columns Presolve time: 0.13s Presolved: 22977 rows, 17928 columns, 86100 nonzeros Variable types: 0 continuous, 17928 integer (17928 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 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 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:11 2012 Optimize a model with 11600 rows, 10228 columns and 44200 nonzeros Presolve removed 23 rows and 1150 columns Presolve time: 0.10s Presolved: 11577 rows, 9078 columns, 43050 nonzeros Variable types: 0 continuous, 9078 integer (9078 binary) Root relaxation: objective 0.000000e+00, 321 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 (321 simplex iterations) in 0.11 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 16:30:11 2012 Optimize a model with 5900 rows, 5228 columns and 22100 nonzeros Presolve removed 23 rows and 575 columns Presolve time: 0.03s Presolved: 5877 rows, 4653 columns, 21525 nonzeros Variable types: 0 continuous, 4653 integer (4653 binary) Root relaxation: objective 0.000000e+00, 324 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 (324 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 16:30:11 2012 Optimize a model with 2936 rows, 2628 columns and 10608 nonzeros Presolve removed 23 rows and 276 columns Presolve time: 0.01s Presolved: 2913 rows, 2352 columns, 10332 nonzeros Variable types: 0 continuous, 2352 integer (2352 binary) Root relaxation: objective 0.000000e+00, 339 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 (515 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 16:30:11 2012 Optimize a model with 1568 rows, 1428 columns and 5304 nonzeros Presolve removed 23 rows and 138 columns Presolve time: 0.01s Presolved: 1545 rows, 1290 columns, 5166 nonzeros Variable types: 0 continuous, 1290 integer (1290 binary) Root relaxation: objective 0.000000e+00, 318 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 (318 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 16:30:11 2012 Optimize a model with 884 rows, 828 columns and 2652 nonzeros Presolve removed 23 rows and 69 columns Presolve time: 0.00s Presolved: 861 rows, 759 columns, 2583 nonzeros Variable types: 0 continuous, 759 integer (759 binary) Root relaxation: objective 0.000000e+00, 363 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 (490 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 16:30:11 2012 Optimize a model with 428 rows, 428 columns and 884 nonzeros Presolve removed 428 rows and 428 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 16:30:11 2012 Optimize a model with 656 rows, 628 columns and 1768 nonzeros Presolve removed 202 rows and 226 columns Presolve time: 0.00s Presolved: 454 rows, 402 columns, 1362 nonzeros Variable types: 0 continuous, 402 integer (402 binary) Root relaxation: objective 0.000000e+00, 195 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 0 175 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (650 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