current bounds on the number of colors: 0 -- 199 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:40 2012 Optimize a model with 22078 rows, 19922 columns and 85338 nonzeros Presolve removed 31 rows and 3069 columns Presolve time: 0.13s Presolved: 22047 rows, 16853 columns, 82269 nonzeros Variable types: 0 continuous, 16853 integer (16853 binary) Root relaxation: objective 0.000000e+00, 327 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 (327 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 -- 99 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:41 2012 Optimize a model with 11028 rows, 9972 columns and 42238 nonzeros Presolve removed 31 rows and 1519 columns Presolve time: 0.09s Presolved: 10997 rows, 8453 columns, 40719 nonzeros Variable types: 0 continuous, 8453 integer (8453 binary) Root relaxation: objective 0.000000e+00, 323 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 (323 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 -- 49 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:41 2012 Optimize a model with 5503 rows, 4997 columns and 20688 nonzeros Presolve removed 31 rows and 744 columns Presolve time: 0.03s Presolved: 5472 rows, 4253 columns, 19944 nonzeros Variable types: 0 continuous, 4253 integer (4253 binary) Root relaxation: objective 0.000000e+00, 319 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 (319 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:29:41 2012 Optimize a model with 2851 rows, 2609 columns and 10344 nonzeros Presolve removed 31 rows and 372 columns Presolve time: 0.01s Presolved: 2820 rows, 2237 columns, 9972 nonzeros Variable types: 0 continuous, 2237 integer (2237 binary) Root relaxation: objective 0.000000e+00, 329 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 (501 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 16:29:41 2012 Optimize a model with 1525 rows, 1415 columns and 5172 nonzeros Presolve removed 31 rows and 186 columns Presolve time: 0.01s Presolved: 1494 rows, 1229 columns, 4986 nonzeros Variable types: 0 continuous, 1229 integer (1229 binary) Root relaxation: objective 0.000000e+00, 320 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 (320 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 16:29:41 2012 Optimize a model with 862 rows, 818 columns and 2586 nonzeros Presolve removed 31 rows and 93 columns Presolve time: 0.00s Presolved: 831 rows, 725 columns, 2493 nonzeros Variable types: 0 continuous, 725 integer (725 binary) Root relaxation: objective 0.000000e+00, 358 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 (592 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 16:29:41 2012 Optimize a model with 420 rows, 420 columns and 862 nonzeros Presolve removed 420 rows and 420 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 16:29:42 2012 Optimize a model with 641 rows, 619 columns and 1724 nonzeros Presolve removed 209 rows and 245 columns Presolve time: 0.00s Presolved: 432 rows, 374 columns, 1296 nonzeros Variable types: 0 continuous, 374 integer (374 binary) Root relaxation: objective 0.000000e+00, 176 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 0 154 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (551 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