current bounds on the number of colors: 0 -- 42
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:59 2012
Optimize a model with 2268 rows, 988 columns and 7560 nonzeros
Presolve time: 0.01s
Presolved: 2268 rows, 988 columns, 7560 nonzeros
Variable types: 0 continuous, 988 integer (988 binary)
Root relaxation: objective 0.000000e+00, 92 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 (166 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 -- 21
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:59 2012
Optimize a model with 1102 rows, 526 columns and 3600 nonzeros
Presolve time: 0.00s
Presolved: 1102 rows, 526 columns, 3600 nonzeros
Variable types: 0 continuous, 526 integer (526 binary)
Root relaxation: objective 0.000000e+00, 88 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 (147 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 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:59 2012
Optimize a model with 572 rows, 316 columns and 1800 nonzeros
Presolve time: 0.00s
Presolved: 572 rows, 316 columns, 1800 nonzeros
Variable types: 0 continuous, 316 integer (316 binary)
Root relaxation: objective 0.000000e+00, 92 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 (227 simplex iterations) in 0.00 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 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:59 2012
Optimize a model with 254 rows, 190 columns and 720 nonzeros
Presolve removed 42 rows and 42 columns
Presolve time: 0.00s
Presolved: 212 rows, 148 columns, 636 nonzeros
Variable types: 0 continuous, 148 integer (148 binary)
Root relaxation: objective 0.000000e+00, 46 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 42 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (168 simplex iterations) in 0.00 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: 2 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:59 2012
Optimize a model with 360 rows, 232 columns and 1080 nonzeros
Presolve time: 0.00s
Presolved: 360 rows, 232 columns, 1080 nonzeros
Variable types: 0 continuous, 232 integer (232 binary)
Root relaxation: objective 0.000000e+00, 101 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 82 - 0.00000 - - 0s
0 0 0.00000 0 68 - 0.00000 - - 0s
0 0 0.00000 0 86 - 0.00000 - - 0s
0 0 0.00000 0 76 - 0.00000 - - 0s
0 0 0.00000 0 91 - 0.00000 - - 0s
0 0 0.00000 0 95 - 0.00000 - - 0s
0 0 0.00000 0 79 - 0.00000 - - 0s
0 0 0.00000 0 76 - 0.00000 - - 0s
0 0 0.00000 0 84 - 0.00000 - - 0s
0 0 0.00000 0 77 - 0.00000 - - 0s
0 2 0.00000 0 77 - 0.00000 - - 0s
Cutting planes:
Zero half: 6
Explored 9 nodes (2764 simplex iterations) in 0.13 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:00 2012
Optimize a model with 466 rows, 274 columns and 1440 nonzeros
Presolve time: 0.00s
Presolved: 466 rows, 274 columns, 1440 nonzeros
Variable types: 0 continuous, 274 integer (274 binary)
Root relaxation: objective 0.000000e+00, 107 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 (201 simplex iterations) in 0.00 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: 4