current bounds on the number of colors: 0 -- 212 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:29 2012 Optimize a model with 23638 rows, 22693 columns and 92750 nonzeros Presolve removed 30 rows and 3180 columns Presolve time: 0.14s Presolved: 23608 rows, 19513 columns, 89570 nonzeros Variable types: 0 continuous, 19513 integer (19513 binary) Root relaxation: objective 0.000000e+00, 340 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 (340 simplex iterations) in 0.16 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 -- 106 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:29 2012 Optimize a model with 11925 rows, 11457 columns and 46375 nonzeros Presolve removed 30 rows and 1590 columns Presolve time: 0.11s Presolved: 11895 rows, 9867 columns, 44785 nonzeros Variable types: 0 continuous, 9867 integer (9867 binary) Root relaxation: objective 0.000000e+00, 338 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 (338 simplex iterations) in 0.12 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:30 2012 Optimize a model with 5958 rows, 5733 columns and 22750 nonzeros Presolve removed 30 rows and 780 columns Presolve time: 0.04s Presolved: 5928 rows, 4953 columns, 21970 nonzeros Variable types: 0 continuous, 4953 integer (4953 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 (339 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:30 2012 Optimize a model with 3085 rows, 2977 columns and 11375 nonzeros Presolve removed 30 rows and 390 columns Presolve time: 0.01s Presolved: 3055 rows, 2587 columns, 10985 nonzeros Variable types: 0 continuous, 2587 integer (2587 binary) Root relaxation: objective 0.000000e+00, 338 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 (502 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:30 2012 Optimize a model with 1538 rows, 1493 columns and 5250 nonzeros Presolve removed 30 rows and 180 columns Presolve time: 0.01s Presolved: 1508 rows, 1313 columns, 5070 nonzeros Variable types: 0 continuous, 1313 integer (1313 binary) Root relaxation: objective 0.000000e+00, 357 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:30 2012 Optimize a model with 875 rows, 857 columns and 2625 nonzeros Presolve removed 30 rows and 90 columns Presolve time: 0.00s Presolved: 845 rows, 767 columns, 2535 nonzeros Variable types: 0 continuous, 767 integer (767 binary) Root relaxation: objective 0.000000e+00, 313 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 (439 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 16:33:30 2012 Optimize a model with 433 rows, 433 columns and 875 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 16:33:30 2012 Optimize a model with 654 rows, 645 columns and 1750 nonzeros Presolve removed 218 rows and 251 columns Presolve time: 0.00s Presolved: 436 rows, 394 columns, 1308 nonzeros Variable types: 0 continuous, 394 integer (394 binary) Root relaxation: objective 0.000000e+00, 202 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 0 167 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (632 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