current bounds on the number of colors: 0 -- 107
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:59:29 2012
Optimize a model with 28727 rows, 6211 columns and 91531 nonzeros
Presolve time: 0.14s
Presolved: 28727 rows, 6211 columns, 91531 nonzeros
Variable types: 0 continuous, 6211 integer (6211 binary)
Root relaxation: objective 0.000000e+00, 331 iterations, 0.02 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 (578 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 -- 53
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:59:29 2012
Optimize a model with 14147 rows, 3322 columns and 44902 nonzeros
Presolve time: 0.06s
Presolved: 14147 rows, 3322 columns, 44902 nonzeros
Variable types: 0 continuous, 3322 integer (3322 binary)
Root relaxation: objective 0.000000e+00, 247 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 0.08 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 Thu Dec 13 19:59:29 2012
Optimize a model with 7127 rows, 1931 columns and 22451 nonzeros
Presolve time: 0.02s
Presolved: 7127 rows, 1931 columns, 22451 nonzeros
Variable types: 0 continuous, 1931 integer (1931 binary)
Root relaxation: objective 0.000000e+00, 235 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 (568 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 -- 13
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:59:30 2012
Optimize a model with 3347 rows, 1182 columns and 10362 nonzeros
Presolve time: 0.01s
Presolved: 3347 rows, 1182 columns, 10362 nonzeros
Variable types: 0 continuous, 1182 integer (1182 binary)
Root relaxation: objective 0.000000e+00, 236 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 78 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (1216 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 -- 6
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:59:30 2012
Optimize a model with 1727 rows, 861 columns and 5181 nonzeros
Presolve time: 0.00s
Presolved: 1727 rows, 861 columns, 5181 nonzeros
Variable types: 0 continuous, 861 integer (861 binary)
Root relaxation: objective 0.000000e+00, 241 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 0 214 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Cutting planes:
Gomory: 2
Clique: 180
Zero half: 292
Explored 0 nodes (1162 simplex iterations) in 0.07 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 -- 6
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:59:30 2012
Optimize a model with 2267 rows, 968 columns and 6908 nonzeros
Presolve time: 0.01s
Presolved: 2267 rows, 968 columns, 6908 nonzeros
Variable types: 0 continuous, 968 integer (968 binary)
Root relaxation: objective 0.000000e+00, 238 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 0 202 - 0.00000 - - 0s
0 0 0.00000 0 200 - 0.00000 - - 0s
0 0 0.00000 0 197 - 0.00000 - - 0s
0 0 0.00000 0 310 - 0.00000 - - 0s
0 0 0.00000 0 188 - 0.00000 - - 0s
0 0 0.00000 0 275 - 0.00000 - - 1s
0 0 0.00000 0 248 - 0.00000 - - 1s
0 0 0.00000 0 269 - 0.00000 - - 1s
0 0 0.00000 0 278 - 0.00000 - - 2s
0 0 0.00000 0 278 - 0.00000 - - 2s
0 2 0.00000 0 278 - 0.00000 - - 2s
Cutting planes:
Clique: 4
Zero half: 31
Explored 51 nodes (28623 simplex iterations) in 2.94 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: 4 -- 6
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:59:33 2012
Optimize a model with 2807 rows, 1075 columns and 8635 nonzeros
Presolve time: 0.01s
Presolved: 2807 rows, 1075 columns, 8635 nonzeros
Variable types: 0 continuous, 1075 integer (1075 binary)
Root relaxation: objective 0.000000e+00, 241 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 92 - 0.00000 - - 0s
0 0 0.00000 0 128 - 0.00000 - - 0s
0 0 0.00000 0 115 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (6160 simplex iterations) in 0.40 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%
optimal solution found: number of colors: 5