current bounds on the number of colors: 0 -- 117 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:00 2012 Optimize a model with 39673 rows, 7468 columns and 125454 nonzeros Presolve time: 0.16s Presolved: 39673 rows, 7468 columns, 125454 nonzeros Variable types: 0 continuous, 7468 integer (7468 binary) Root relaxation: objective 0.000000e+00, 302 iterations, 0.05 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 (554 simplex iterations) in 0.26 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 -- 58 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:00 2012 Optimize a model with 19895 rows, 4075 columns and 62727 nonzeros Presolve time: 0.08s Presolved: 19895 rows, 4075 columns, 62727 nonzeros Variable types: 0 continuous, 4075 integer (4075 binary) Root relaxation: objective 0.000000e+00, 267 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 (509 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 -- 29 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012 Optimize a model with 9665 rows, 2320 columns and 30282 nonzeros Presolve time: 0.03s Presolved: 9665 rows, 2320 columns, 30282 nonzeros Variable types: 0 continuous, 2320 integer (2320 binary) Root relaxation: objective 0.000000e+00, 239 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 (466 simplex iterations) in 0.05 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 Thu Dec 13 20:37:01 2012 Optimize a model with 4891 rows, 1501 columns and 15141 nonzeros Presolve time: 0.01s Presolved: 4891 rows, 1501 columns, 15141 nonzeros Variable types: 0 continuous, 1501 integer (1501 binary) Root relaxation: objective 0.000000e+00, 262 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 (855 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 -- 7 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012 Optimize a model with 2163 rows, 1033 columns and 6489 nonzeros Presolve time: 0.01s Presolved: 2163 rows, 1033 columns, 6489 nonzeros Variable types: 0 continuous, 1033 integer (1033 binary) Root relaxation: objective 0.000000e+00, 247 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 0 200 - 0.00000 - - 0s 0 0 0.00000 0 278 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (4329 simplex iterations) in 0.43 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current bounds on the number of colors: 3 -- 7 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:01 2012 Optimize a model with 3527 rows, 1267 columns and 10815 nonzeros Presolve time: 0.01s Presolved: 3527 rows, 1267 columns, 10815 nonzeros Variable types: 0 continuous, 1267 integer (1267 binary) Root relaxation: objective 0.000000e+00, 246 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 0 232 - 0.00000 - - 0s 0 0 0.00000 0 220 - 0.00000 - - 0s 0 0 0.00000 0 240 - 0.00000 - - 0s 0 0 0.00000 0 334 - 0.00000 - - 0s 0 0 0.00000 0 227 - 0.00000 - - 1s 0 0 0.00000 0 270 - 0.00000 - - 1s 0 0 0.00000 0 270 - 0.00000 - - 1s 0 0 0.00000 0 278 - 0.00000 - - 2s 0 0 0.00000 0 271 - 0.00000 - - 2s 0 2 0.00000 0 271 - 0.00000 - - 2s * 210 0 28 0.0000000 0.00000 0.0% 43.7 3s Cutting planes: Clique: 5 Zero half: 12 Explored 211 nodes (30731 simplex iterations) in 3.22 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: 3 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:37:05 2012 Optimize a model with 2845 rows, 1150 columns and 8652 nonzeros Presolve time: 0.01s Presolved: 2845 rows, 1150 columns, 8652 nonzeros Variable types: 0 continuous, 1150 integer (1150 binary) Root relaxation: objective 0.000000e+00, 263 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 0 228 - 0.00000 - - 0s 0 0 0.00000 0 226 - 0.00000 - - 0s 0 0 0.00000 0 335 - 0.00000 - - 0s 0 0 0.00000 0 337 - 0.00000 - - 0s 0 0 0.00000 0 337 - 0.00000 - - 1s 0 0 0.00000 0 337 - 0.00000 - - 2s 0 0 0.00000 0 337 - 0.00000 - - 2s 0 2 0.00000 0 337 - 0.00000 - - 2s Cutting planes: Clique: 7 Zero half: 8 Explored 32 nodes (22944 simplex iterations) in 3.48 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - optimal solution found: number of colors: 5