current bounds on the number of colors: 0 -- 200 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:30:05 2012 Optimize a model with 21100 rows, 20209 columns and 82700 nonzeros Presolve removed 20 rows and 2000 columns Presolve time: 0.13s Presolved: 21080 rows, 18209 columns, 80700 nonzeros Variable types: 0 continuous, 18209 integer (18209 binary) Root relaxation: objective 0.000000e+00, 329 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 (329 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 16:30:06 2012 Optimize a model with 10650 rows, 10209 columns and 41350 nonzeros Presolve removed 20 rows and 1000 columns Presolve time: 0.10s Presolved: 10630 rows, 9209 columns, 40350 nonzeros Variable types: 0 continuous, 9209 integer (9209 binary) Root relaxation: objective 0.000000e+00, 331 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 (331 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 16:30:06 2012 Optimize a model with 5425 rows, 5209 columns and 20675 nonzeros Presolve removed 20 rows and 500 columns Presolve time: 0.03s Presolved: 5405 rows, 4709 columns, 20175 nonzeros Variable types: 0 continuous, 4709 integer (4709 binary) Root relaxation: objective 0.000000e+00, 326 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 (326 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 16:30:06 2012 Optimize a model with 2708 rows, 2609 columns and 9924 nonzeros Presolve removed 20 rows and 240 columns Presolve time: 0.01s Presolved: 2688 rows, 2369 columns, 9684 nonzeros Variable types: 0 continuous, 2369 integer (2369 binary) Root relaxation: objective 0.000000e+00, 321 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 (321 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 16:30:06 2012 Optimize a model with 1454 rows, 1409 columns and 4962 nonzeros Presolve removed 20 rows and 120 columns Presolve time: 0.01s Presolved: 1434 rows, 1289 columns, 4842 nonzeros Variable types: 0 continuous, 1289 integer (1289 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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 16:30:06 2012 Optimize a model with 827 rows, 809 columns and 2481 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 807 rows, 749 columns, 2421 nonzeros Variable types: 0 continuous, 749 integer (749 binary) Root relaxation: objective 0.000000e+00, 296 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 (296 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 16:30:06 2012 Optimize a model with 409 rows, 409 columns and 827 nonzeros Presolve removed 409 rows and 409 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 16:30:06 2012 Optimize a model with 618 rows, 609 columns and 1654 nonzeros Presolve removed 202 rows and 223 columns Presolve time: 0.00s Presolved: 416 rows, 386 columns, 1248 nonzeros Variable types: 0 continuous, 386 integer (386 binary) Root relaxation: objective 0.000000e+00, 206 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 0 178 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (675 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