current bounds on the number of colors: 0 -- 241 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:36 2012 Optimize a model with 33841 rows, 29200 columns and 129720 nonzeros Presolve removed 16 rows and 1920 columns Presolve time: 0.15s Presolved: 33825 rows, 27280 columns, 127800 nonzeros Variable types: 0 continuous, 27280 integer (27280 binary) Root relaxation: objective 0.000000e+00, 411 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 (411 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 -- 120 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:36 2012 Optimize a model with 17041 rows, 14740 columns and 64860 nonzeros Presolve removed 16 rows and 960 columns Presolve time: 0.12s Presolved: 17025 rows, 13780 columns, 63900 nonzeros Variable types: 0 continuous, 13780 integer (13780 binary) Root relaxation: objective 0.000000e+00, 411 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 (411 simplex iterations) in 0.14 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 -- 60 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:37 2012 Optimize a model with 8641 rows, 7510 columns and 32430 nonzeros Presolve removed 16 rows and 480 columns Presolve time: 0.06s Presolved: 8625 rows, 7030 columns, 31950 nonzeros Variable types: 0 continuous, 7030 integer (7030 binary) Root relaxation: objective 0.000000e+00, 408 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 (408 simplex iterations) in 0.07 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 -- 30 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:37 2012 Optimize a model with 4441 rows, 3895 columns and 16215 nonzeros Presolve removed 16 rows and 240 columns Presolve time: 0.02s Presolved: 4425 rows, 3655 columns, 15975 nonzeros Variable types: 0 continuous, 3655 integer (3655 binary) Root relaxation: objective 0.000000e+00, 416 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 (416 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:37 2012 Optimize a model with 2201 rows, 1967 columns and 7567 nonzeros Presolve removed 16 rows and 112 columns Presolve time: 0.01s Presolved: 2185 rows, 1855 columns, 7455 nonzeros Variable types: 0 continuous, 1855 integer (1855 binary) Root relaxation: objective 0.000000e+00, 435 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 (435 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 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:37 2012 Optimize a model with 1081 rows, 1003 columns and 3243 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 1065 rows, 955 columns, 3195 nonzeros Variable types: 0 continuous, 955 integer (955 binary) Root relaxation: objective 0.000000e+00, 417 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 0.01 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:37 2012 Optimize a model with 521 rows, 521 columns and 1081 nonzeros Presolve removed 521 rows and 521 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 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: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:37 2012 Optimize a model with 801 rows, 762 columns and 2162 nonzeros Presolve removed 249 rows and 269 columns Presolve time: 0.00s Presolved: 552 rows, 493 columns, 1656 nonzeros Variable types: 0 continuous, 493 integer (493 binary) Root relaxation: objective 0.000000e+00, 245 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 0 217 - 0.00000 - - 0s Explored 0 nodes (811 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 - optimal solution found: number of colors: 3