current bounds on the number of colors: 0 -- 202 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:42 2012 Optimize a model with 22523 rows, 20623 columns and 87365 nonzeros Presolve removed 21 rows and 2121 columns Presolve time: 0.13s Presolved: 22502 rows, 18502 columns, 85244 nonzeros Variable types: 0 continuous, 18502 integer (18502 binary) Root relaxation: objective 0.000000e+00, 353 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 (529 simplex iterations) in 0.17 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 16:30:43 2012 Optimize a model with 11252 rows, 10321 columns and 43250 nonzeros Presolve removed 21 rows and 1050 columns Presolve time: 0.10s Presolved: 11231 rows, 9271 columns, 42200 nonzeros Variable types: 0 continuous, 9271 integer (9271 binary) Root relaxation: objective 0.000000e+00, 349 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 (349 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 16:30:43 2012 Optimize a model with 5727 rows, 5271 columns and 21625 nonzeros Presolve removed 21 rows and 525 columns Presolve time: 0.03s Presolved: 5706 rows, 4746 columns, 21100 nonzeros Variable types: 0 continuous, 4746 integer (4746 binary) Root relaxation: objective 0.000000e+00, 343 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 (343 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 16:30:43 2012 Optimize a model with 2854 rows, 2645 columns and 10380 nonzeros Presolve removed 21 rows and 252 columns Presolve time: 0.01s Presolved: 2833 rows, 2393 columns, 10128 nonzeros Variable types: 0 continuous, 2393 integer (2393 binary) Root relaxation: objective 0.000000e+00, 335 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 (335 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 16:30:43 2012 Optimize a model with 1528 rows, 1433 columns and 5190 nonzeros Presolve removed 21 rows and 126 columns Presolve time: 0.01s Presolved: 1507 rows, 1307 columns, 5064 nonzeros Variable types: 0 continuous, 1307 integer (1307 binary) Root relaxation: objective 0.000000e+00, 316 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 (316 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 16:30:43 2012 Optimize a model with 865 rows, 827 columns and 2595 nonzeros Presolve removed 21 rows and 63 columns Presolve time: 0.00s Presolved: 844 rows, 764 columns, 2532 nonzeros Variable types: 0 continuous, 764 integer (764 binary) Root relaxation: objective 0.000000e+00, 326 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 (452 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 16:30:43 2012 Optimize a model with 423 rows, 423 columns and 865 nonzeros Presolve removed 423 rows and 423 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 16:30:43 2012 Optimize a model with 644 rows, 625 columns and 1730 nonzeros Presolve removed 202 rows and 223 columns Presolve time: 0.00s Presolved: 442 rows, 402 columns, 1326 nonzeros Variable types: 0 continuous, 402 integer (402 binary) Root relaxation: objective 0.000000e+00, 197 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 0 177 - 0.00000 - - 0s Explored 0 nodes (691 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