current bounds on the number of colors: 0 -- 37
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:58:20 2012
Optimize a model with 6121 rows, 1004 columns and 18918 nonzeros
Presolve time: 0.02s
Presolved: 6121 rows, 1004 columns, 18918 nonzeros
Variable types: 0 continuous, 1004 integer (1004 binary)
Root relaxation: objective 0.000000e+00, 83 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 (226 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 -- 18
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:58:20 2012
Optimize a model with 3079 rows, 671 columns and 9459 nonzeros
Presolve time: 0.01s
Presolved: 3079 rows, 671 columns, 9459 nonzeros
Variable types: 0 continuous, 671 integer (671 binary)
Root relaxation: objective 0.000000e+00, 78 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 26 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (670 simplex iterations) in 0.03 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 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:58:20 2012
Optimize a model with 1389 rows, 486 columns and 4204 nonzeros
Presolve time: 0.00s
Presolved: 1389 rows, 486 columns, 4204 nonzeros
Variable types: 0 continuous, 486 integer (486 binary)
Root relaxation: objective 0.000000e+00, 75 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 74 - 0.00000 - - 0s
0 0 0.00000 0 64 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (1911 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: 4 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:58:20 2012
Optimize a model with 2065 rows, 560 columns and 6306 nonzeros
Presolve time: 0.01s
Presolved: 2065 rows, 560 columns, 6306 nonzeros
Variable types: 0 continuous, 560 integer (560 binary)
Root relaxation: objective 0.000000e+00, 74 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 0.00000 0 38 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (1361 simplex iterations) in 0.10 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: 6 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:58:20 2012
Optimize a model with 2403 rows, 597 columns and 7357 nonzeros
Presolve time: 0.01s
Presolved: 2403 rows, 597 columns, 7357 nonzeros
Variable types: 0 continuous, 597 integer (597 binary)
Root relaxation: objective 0.000000e+00, 74 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 28 - 0.00000 - - 0s
0 0 0.00000 0 28 - 0.00000 - - 0s
0 0 0.00000 0 95 - 0.00000 - - 0s
0 0 0.00000 0 159 - 0.00000 - - 0s
0 0 0.00000 0 130 - 0.00000 - - 0s
0 0 0.00000 0 143 - 0.00000 - - 0s
0 0 0.00000 0 158 - 0.00000 - - 0s
0 0 0.00000 0 136 - 0.00000 - - 0s
0 2 0.00000 0 136 - 0.00000 - - 1s
Cutting planes:
Clique: 33
Zero half: 7
Explored 17 nodes (11992 simplex iterations) in 1.13 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: 7 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 17:58:21 2012
Optimize a model with 2741 rows, 634 columns and 8408 nonzeros
Presolve time: 0.01s
Presolved: 2741 rows, 634 columns, 8408 nonzeros
Variable types: 0 continuous, 634 integer (634 binary)
Root relaxation: objective 0.000000e+00, 74 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 38 - 0.00000 - - 0s
0 0 0.00000 0 34 - 0.00000 - - 0s
Cutting planes:
Clique: 11
Explored 0 nodes (1149 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%
optimal solution found: number of colors: 8