current bounds on the number of colors: 0 -- 201 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:24 2012 Optimize a model with 20701 rows, 20305 columns and 81600 nonzeros Presolve removed 17 rows and 1700 columns Presolve time: 0.13s Presolved: 20684 rows, 18605 columns, 79900 nonzeros Variable types: 0 continuous, 18605 integer (18605 binary) Root relaxation: objective 0.000000e+00, 332 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 (332 simplex iterations) in 0.15 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 -- 100 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:24 2012 Optimize a model with 10451 rows, 10255 columns and 40800 nonzeros Presolve removed 17 rows and 850 columns Presolve time: 0.10s Presolved: 10434 rows, 9405 columns, 39950 nonzeros Variable types: 0 continuous, 9405 integer (9405 binary) Root relaxation: objective 0.000000e+00, 330 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 (330 simplex iterations) in 0.11 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 Sat Dec 15 16:30:24 2012 Optimize a model with 5326 rows, 5230 columns and 20400 nonzeros Presolve removed 17 rows and 425 columns Presolve time: 0.03s Presolved: 5309 rows, 4805 columns, 19975 nonzeros Variable types: 0 continuous, 4805 integer (4805 binary) Root relaxation: objective 0.000000e+00, 333 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 (333 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 -- 25 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:24 2012 Optimize a model with 2661 rows, 2617 columns and 9792 nonzeros Presolve removed 17 rows and 204 columns Presolve time: 0.01s Presolved: 2644 rows, 2413 columns, 9588 nonzeros Variable types: 0 continuous, 2413 integer (2413 binary) Root relaxation: objective 0.000000e+00, 324 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 (324 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:25 2012 Optimize a model with 1431 rows, 1411 columns and 4896 nonzeros Presolve removed 17 rows and 102 columns Presolve time: 0.01s Presolved: 1414 rows, 1309 columns, 4794 nonzeros Variable types: 0 continuous, 1309 integer (1309 binary) Root relaxation: objective 0.000000e+00, 309 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 (309 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:25 2012 Optimize a model with 816 rows, 808 columns and 2448 nonzeros Presolve removed 17 rows and 51 columns Presolve time: 0.00s Presolved: 799 rows, 757 columns, 2397 nonzeros Variable types: 0 continuous, 757 integer (757 binary) Root relaxation: objective 0.000000e+00, 294 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 (294 simplex iterations) in 0.00 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 16:30:25 2012 Optimize a model with 406 rows, 406 columns and 816 nonzeros Presolve removed 406 rows and 406 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 16:30:25 2012 Optimize a model with 611 rows, 607 columns and 1632 nonzeros Presolve removed 209 rows and 230 columns Presolve time: 0.00s Presolved: 402 rows, 377 columns, 1206 nonzeros Variable types: 0 continuous, 377 integer (377 binary) Root relaxation: objective 0.000000e+00, 196 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 0 173 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (633 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