current bounds on the number of colors: 0 -- 239 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:46 2012 Optimize a model with 35463 rows, 28737 columns and 134113 nonzeros Presolve removed 25 rows and 2975 columns Presolve time: 0.17s Presolved: 35438 rows, 25762 columns, 131138 nonzeros Variable types: 0 continuous, 25762 integer (25762 binary) Root relaxation: objective 0.000000e+00, 401 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 (401 simplex iterations) in 0.20 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 -- 119 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:47 2012 Optimize a model with 17703 rows, 14397 columns and 66493 nonzeros Presolve removed 25 rows and 1475 columns Presolve time: 0.12s Presolved: 17678 rows, 12922 columns, 65018 nonzeros Variable types: 0 continuous, 12922 integer (12922 binary) Root relaxation: objective 0.000000e+00, 403 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 (403 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 -- 59 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:48 2012 Optimize a model with 8823 rows, 7227 columns and 32683 nonzeros Presolve removed 25 rows and 725 columns Presolve time: 0.05s Presolved: 8798 rows, 6502 columns, 31958 nonzeros Variable types: 0 continuous, 6502 integer (6502 binary) Root relaxation: objective 0.000000e+00, 410 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 (410 simplex iterations) in 0.06 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 -- 29 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:48 2012 Optimize a model with 4383 rows, 3642 columns and 15778 nonzeros Presolve removed 25 rows and 350 columns Presolve time: 0.02s Presolved: 4358 rows, 3292 columns, 15428 nonzeros Variable types: 0 continuous, 3292 integer (3292 binary) Root relaxation: objective 0.000000e+00, 418 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 (681 simplex iterations) in 0.03 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 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:48 2012 Optimize a model with 2311 rows, 1969 columns and 7889 nonzeros Presolve removed 25 rows and 175 columns Presolve time: 0.01s Presolved: 2286 rows, 1794 columns, 7714 nonzeros Variable types: 0 continuous, 1794 integer (1794 binary) Root relaxation: objective 0.000000e+00, 437 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 (654 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:48 2012 Optimize a model with 1127 rows, 1013 columns and 3381 nonzeros Presolve removed 25 rows and 75 columns Presolve time: 0.01s Presolved: 1102 rows, 938 columns, 3306 nonzeros Variable types: 0 continuous, 938 integer (938 binary) Root relaxation: objective 0.000000e+00, 454 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 (655 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:48 2012 Optimize a model with 535 rows, 535 columns and 1127 nonzeros Presolve removed 535 rows and 535 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 16:43:48 2012 Optimize a model with 831 rows, 774 columns and 2254 nonzeros Presolve removed 243 rows and 270 columns Presolve time: 0.00s Presolved: 588 rows, 504 columns, 1764 nonzeros Variable types: 0 continuous, 504 integer (504 binary) Root relaxation: objective 0.000000e+00, 233 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 0 210 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (792 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