current bounds on the number of colors: 0 -- 238 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:24 2012 Optimize a model with 36057 rows, 28623 columns and 135779 nonzeros Presolve removed 12 rows and 1428 columns Presolve time: 0.18s Presolved: 36045 rows, 27195 columns, 134351 nonzeros Variable types: 0 continuous, 27195 integer (27195 binary) Root relaxation: objective 0.000000e+00, 437 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 (437 simplex iterations) in 0.21 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 16:43:24 2012 Optimize a model with 17997 rows, 14343 columns and 67319 nonzeros Presolve removed 12 rows and 708 columns Presolve time: 0.13s Presolved: 17985 rows, 13635 columns, 66611 nonzeros Variable types: 0 continuous, 13635 integer (13635 binary) Root relaxation: objective 0.000000e+00, 437 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 (437 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 16:43:25 2012 Optimize a model with 8967 rows, 7203 columns and 33089 nonzeros Presolve removed 12 rows and 348 columns Presolve time: 0.06s Presolved: 8955 rows, 6855 columns, 32741 nonzeros Variable types: 0 continuous, 6855 integer (6855 binary) Root relaxation: objective 0.000000e+00, 436 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 (436 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 16:43:25 2012 Optimize a model with 4452 rows, 3633 columns and 15974 nonzeros Presolve removed 12 rows and 168 columns Presolve time: 0.02s Presolved: 4440 rows, 3465 columns, 15806 nonzeros Variable types: 0 continuous, 3465 integer (3465 binary) Root relaxation: objective 0.000000e+00, 464 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 (464 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 16:43:25 2012 Optimize a model with 2345 rows, 1967 columns and 7987 nonzeros Presolve removed 12 rows and 84 columns Presolve time: 0.01s Presolved: 2333 rows, 1883 columns, 7903 nonzeros Variable types: 0 continuous, 1883 integer (1883 binary) Root relaxation: objective 0.000000e+00, 397 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 (397 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:25 2012 Optimize a model with 1141 rows, 1015 columns and 3423 nonzeros Presolve removed 12 rows and 36 columns Presolve time: 0.00s Presolved: 1129 rows, 979 columns, 3387 nonzeros Variable types: 0 continuous, 979 integer (979 binary) Root relaxation: objective 0.000000e+00, 427 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 (427 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 16:43:25 2012 Optimize a model with 539 rows, 539 columns and 1141 nonzeros Presolve removed 539 rows and 539 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 16:43:25 2012 Optimize a model with 840 rows, 777 columns and 2282 nonzeros Presolve removed 242 rows and 256 columns Presolve time: 0.00s Presolved: 598 rows, 521 columns, 1794 nonzeros Variable types: 0 continuous, 521 integer (521 binary) Root relaxation: objective 0.000000e+00, 258 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 0 219 - 0.00000 - - 0s Explored 0 nodes (825 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