current bounds on the number of colors: 0 -- 81
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:13 2012
Optimize a model with 12521 rows, 3551 columns and 40560 nonzeros
Presolve time: 0.07s
Presolved: 12521 rows, 3551 columns, 40560 nonzeros
Variable types: 0 continuous, 3551 integer (3551 binary)
Root relaxation: objective 0.000000e+00, 195 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 (357 simplex iterations) in 0.09 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 -- 40
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:13 2012
Optimize a model with 6301 rows, 1931 columns and 20280 nonzeros
Presolve time: 0.02s
Presolved: 6301 rows, 1931 columns, 20280 nonzeros
Variable types: 0 continuous, 1931 integer (1931 binary)
Root relaxation: objective 0.000000e+00, 172 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 (395 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 -- 20
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:13 2012
Optimize a model with 3191 rows, 1121 columns and 10140 nonzeros
Presolve time: 0.01s
Presolved: 3191 rows, 1121 columns, 10140 nonzeros
Variable types: 0 continuous, 1121 integer (1121 binary)
Root relaxation: objective 0.000000e+00, 170 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 (337 simplex iterations) in 0.02 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 19:40:13 2012
Optimize a model with 1636 rows, 716 columns and 5070 nonzeros
Presolve time: 0.00s
Presolved: 1636 rows, 716 columns, 5070 nonzeros
Variable types: 0 continuous, 716 integer (716 binary)
Root relaxation: objective 0.000000e+00, 187 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 (418 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 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:13 2012
Optimize a model with 703 rows, 473 columns and 2028 nonzeros
Presolve removed 81 rows and 81 columns
Presolve time: 0.00s
Presolved: 622 rows, 392 columns, 1866 nonzeros
Variable types: 0 continuous, 392 integer (392 binary)
Root relaxation: objective 0.000000e+00, 82 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 81 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (333 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 -
current bounds on the number of colors: 2 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:13 2012
Optimize a model with 1014 rows, 554 columns and 3042 nonzeros
Presolve time: 0.00s
Presolved: 1014 rows, 554 columns, 3042 nonzeros
Variable types: 0 continuous, 554 integer (554 binary)
Root relaxation: objective 0.000000e+00, 181 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 0 158 - 0.00000 - - 0s
0 0 0.00000 0 160 - 0.00000 - - 0s
0 0 0.00000 0 226 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Cutting planes:
Gomory: 3
Zero half: 347
Explored 0 nodes (2569 simplex iterations) in 0.18 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 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:40:14 2012
Optimize a model with 1325 rows, 635 columns and 4056 nonzeros
Presolve time: 0.00s
Presolved: 1325 rows, 635 columns, 4056 nonzeros
Variable types: 0 continuous, 635 integer (635 binary)
Root relaxation: objective 0.000000e+00, 180 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 0 152 - 0.00000 - - 0s
0 0 0.00000 0 119 - 0.00000 - - 0s
0 0 0.00000 0 144 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (3285 simplex iterations) in 0.18 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