current bounds on the number of colors: 0 -- 90 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:45:00 2012 Optimize a model with 19125 rows, 4473 columns and 61155 nonzeros Presolve time: 0.11s Presolved: 19125 rows, 4473 columns, 61155 nonzeros Variable types: 0 continuous, 4473 integer (4473 binary) Root relaxation: objective 0.000000e+00, 244 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 (486 simplex iterations) in 0.17 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 -- 45 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:45:00 2012 Optimize a model with 9396 rows, 2403 columns and 29898 nonzeros Presolve time: 0.04s Presolved: 9396 rows, 2403 columns, 29898 nonzeros Variable types: 0 continuous, 2403 integer (2403 binary) Root relaxation: objective 0.000000e+00, 184 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 (361 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 -- 22 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:45:01 2012 Optimize a model with 4743 rows, 1413 columns and 14949 nonzeros Presolve time: 0.01s Presolved: 4743 rows, 1413 columns, 14949 nonzeros Variable types: 0 continuous, 1413 integer (1413 binary) Root relaxation: objective 0.000000e+00, 185 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 (483 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 -- 11 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:45:01 2012 Optimize a model with 2205 rows, 873 columns and 6795 nonzeros Presolve time: 0.01s Presolved: 2205 rows, 873 columns, 6795 nonzeros Variable types: 0 continuous, 873 integer (873 binary) Root relaxation: objective 0.000000e+00, 192 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 97 - 0.00000 - - 0s * 0 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Gomory: 1 Clique: 14 Zero half: 110 Explored 0 nodes (1817 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 -- 5 Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:45:01 2012 Optimize a model with 936 rows, 603 columns and 2718 nonzeros Presolve removed 90 rows and 90 columns Presolve time: 0.00s Presolved: 846 rows, 513 columns, 2538 nonzeros Variable types: 0 continuous, 513 integer (513 binary) Root relaxation: objective 0.000000e+00, 97 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 90 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (383 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 19:45:01 2012 Optimize a model with 1359 rows, 693 columns and 4077 nonzeros Presolve time: 0.00s Presolved: 1359 rows, 693 columns, 4077 nonzeros Variable types: 0 continuous, 693 integer (693 binary) Root relaxation: objective 0.000000e+00, 205 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 0 187 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (2547 simplex iterations) in 0.15 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 19:45:01 2012 Optimize a model with 1782 rows, 783 columns and 5436 nonzeros Presolve time: 0.00s Presolved: 1782 rows, 783 columns, 5436 nonzeros Variable types: 0 continuous, 783 integer (783 binary) Root relaxation: objective 0.000000e+00, 209 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 0 164 - 0.00000 - - 0s 0 0 0.00000 0 172 - 0.00000 - - 0s 0 0 0.00000 0 158 - 0.00000 - - 0s 0 0 0.00000 0 243 - 0.00000 - - 0s 0 0 0.00000 0 217 - 0.00000 - - 0s 0 0 0.00000 0 213 - 0.00000 - - 0s 0 0 0.00000 0 212 - 0.00000 - - 0s 0 0 0.00000 0 212 - 0.00000 - - 0s 0 0 0.00000 0 212 - 0.00000 - - 0s 0 2 0.00000 0 212 - 0.00000 - - 1s Cutting planes: Clique: 3 Zero half: 21 Explored 147 nodes (24962 simplex iterations) in 1.71 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - optimal solution found: number of colors: 5