current bounds on the number of colors: 0 -- 100 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:39 2012 Optimize a model with 25650 rows, 5511 columns and 81650 nonzeros Presolve time: 0.13s Presolved: 25650 rows, 5511 columns, 81650 nonzeros Variable types: 0 continuous, 5511 integer (5511 binary) Root relaxation: objective 0.000000e+00, 298 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 (514 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% current bounds on the number of colors: 0 -- 50 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:39 2012 Optimize a model with 12875 rows, 3011 columns and 40825 nonzeros Presolve time: 0.05s Presolved: 12875 rows, 3011 columns, 40825 nonzeros Variable types: 0 continuous, 3011 integer (3011 binary) Root relaxation: objective 0.000000e+00, 239 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 (439 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 -- 25 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:40 2012 Optimize a model with 6232 rows, 1711 columns and 19596 nonzeros Presolve time: 0.02s Presolved: 6232 rows, 1711 columns, 19596 nonzeros Variable types: 0 continuous, 1711 integer (1711 binary) Root relaxation: objective 0.000000e+00, 203 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 (417 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 -- 12 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:51:40 2012 Optimize a model with 3166 rows, 1111 columns and 9798 nonzeros Presolve time: 0.01s Presolved: 3166 rows, 1111 columns, 9798 nonzeros Variable types: 0 continuous, 1111 integer (1111 binary) Root relaxation: objective 0.000000e+00, 217 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 (1281 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 19:51:40 2012 Optimize a model with 1633 rows, 811 columns and 4899 nonzeros Presolve time: 0.00s Presolved: 1633 rows, 811 columns, 4899 nonzeros Variable types: 0 continuous, 811 integer (811 binary) Root relaxation: objective 0.000000e+00, 220 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 0 168 - 0.00000 - - 0s 0 0 0.00000 0 241 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (3210 simplex iterations) in 0.24 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 19:51:40 2012 Optimize a model with 2144 rows, 911 columns and 6532 nonzeros Presolve time: 0.01s Presolved: 2144 rows, 911 columns, 6532 nonzeros Variable types: 0 continuous, 911 integer (911 binary) Root relaxation: objective 0.000000e+00, 216 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 0 196 - 0.00000 - - 0s 0 0 0.00000 0 180 - 0.00000 - - 0s 0 0 0.00000 0 196 - 0.00000 - - 0s 0 0 0.00000 0 291 - 0.00000 - - 0s 0 0 0.00000 0 260 - 0.00000 - - 0s 0 0 0.00000 0 268 - 0.00000 - - 1s 0 0 0.00000 0 259 - 0.00000 - - 1s 0 0 0.00000 0 252 - 0.00000 - - 1s 0 0 0.00000 0 257 - 0.00000 - - 1s 0 0 0.00000 0 257 - 0.00000 - - 1s 0 2 0.00000 0 257 - 0.00000 - - 2s Cutting planes: Clique: 7 Zero half: 20 Explored 49 nodes (24608 simplex iterations) in 2.55 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 19:51:43 2012 Optimize a model with 2655 rows, 1011 columns and 8165 nonzeros Presolve time: 0.01s Presolved: 2655 rows, 1011 columns, 8165 nonzeros Variable types: 0 continuous, 1011 integer (1011 binary) Root relaxation: objective 0.000000e+00, 210 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 0 192 - 0.00000 - - 0s 0 0 0.00000 0 10 - 0.00000 - - 0s Cutting planes: Clique: 8 Explored 0 nodes (3280 simplex iterations) in 0.21 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