current bounds on the number of colors: 0 -- 117 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 20:36:19 2012 Optimize a model with 39441 rows, 7464 columns and 124758 nonzeros Presolve time: 0.15s Presolved: 39441 rows, 7464 columns, 124758 nonzeros Variable types: 0 continuous, 7464 integer (7464 binary) Root relaxation: objective 0.000000e+00, 304 iterations, 0.04 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 (630 simplex iterations) in 0.25 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 20:36:20 2012 Optimize a model with 19779 rows, 4071 columns and 62379 nonzeros Presolve time: 0.08s Presolved: 19779 rows, 4071 columns, 62379 nonzeros Variable types: 0 continuous, 4071 integer (4071 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 (496 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 20:36:20 2012 Optimize a model with 9609 rows, 2316 columns and 30114 nonzeros Presolve time: 0.03s Presolved: 9609 rows, 2316 columns, 30114 nonzeros Variable types: 0 continuous, 2316 integer (2316 binary) Root relaxation: objective 0.000000e+00, 250 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 (502 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 20:36:20 2012 Optimize a model with 4863 rows, 1497 columns and 15057 nonzeros Presolve time: 0.01s Presolved: 4863 rows, 1497 columns, 15057 nonzeros Variable types: 0 continuous, 1497 integer (1497 binary) Root relaxation: objective 0.000000e+00, 242 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 (893 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 20:36:20 2012 Optimize a model with 2151 rows, 1029 columns and 6453 nonzeros Presolve time: 0.01s Presolved: 2151 rows, 1029 columns, 6453 nonzeros Variable types: 0 continuous, 1029 integer (1029 binary) Root relaxation: objective 0.000000e+00, 253 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 0 186 - 0.00000 - - 0s 0 0 0.00000 0 291 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (4170 simplex iterations) in 0.40 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 20:36:21 2012 Optimize a model with 3507 rows, 1263 columns and 10755 nonzeros Presolve time: 0.01s Presolved: 3507 rows, 1263 columns, 10755 nonzeros Variable types: 0 continuous, 1263 integer (1263 binary) Root relaxation: objective 0.000000e+00, 262 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 0 212 - 0.00000 - - 0s 0 0 0.00000 0 126 - 0.00000 - - 0s 0 0 0.00000 0 206 - 0.00000 - - 0s 0 0 0.00000 0 255 - 0.00000 - - 0s 0 0 0.00000 0 244 - 0.00000 - - 1s 0 0 0.00000 0 211 - 0.00000 - - 1s 0 0 0.00000 0 209 - 0.00000 - - 1s 0 0 0.00000 0 229 - 0.00000 - - 2s 0 0 0.00000 0 187 - 0.00000 - - 2s 0 0 0.00000 0 245 - 0.00000 - - 2s 0 0 0.00000 0 245 - 0.00000 - - 3s 0 2 0.00000 0 245 - 0.00000 - - 3s * 503 2 27 0.0000000 0.00000 0.0% 59.9 4s Cutting planes: Clique: 2 Zero half: 7 Explored 504 nodes (58429 simplex iterations) in 4.91 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 20:36:26 2012 Optimize a model with 2829 rows, 1146 columns and 8604 nonzeros Presolve time: 0.01s Presolved: 2829 rows, 1146 columns, 8604 nonzeros Variable types: 0 continuous, 1146 integer (1146 binary) Root relaxation: objective 0.000000e+00, 252 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 0 154 - 0.00000 - - 0s 0 0 0.00000 0 206 - 0.00000 - - 0s 0 0 0.00000 0 329 - 0.00000 - - 0s 0 0 0.00000 0 342 - 0.00000 - - 0s 0 0 0.00000 0 330 - 0.00000 - - 1s 0 0 0.00000 0 330 - 0.00000 - - 2s 0 0 0.00000 0 330 - 0.00000 - - 2s 0 0 0.00000 0 330 - 0.00000 - - 2s 0 2 0.00000 0 330 - 0.00000 - - 3s 85 5 0.00000 6 312 - 0.00000 - 228 5s Cutting planes: Clique: 9 Zero half: 29 Explored 117 nodes (43430 simplex iterations) in 5.55 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