current bounds on the number of colors: 0 -- 244 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:04 2012 Optimize a model with 39528 rows, 30090 columns and 147620 nonzeros Presolve removed 14 rows and 1708 columns Presolve time: 0.19s Presolved: 39514 rows, 28382 columns, 145912 nonzeros Variable types: 0 continuous, 28382 integer (28382 binary) Root relaxation: objective 0.000000e+00, 434 iterations, 0.02 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 (434 simplex iterations) in 0.23 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 -- 122 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:04 2012 Optimize a model with 19886 rows, 15206 columns and 73810 nonzeros Presolve removed 14 rows and 854 columns Presolve time: 0.13s Presolved: 19872 rows, 14352 columns, 72956 nonzeros Variable types: 0 continuous, 14352 integer (14352 binary) Root relaxation: objective 0.000000e+00, 434 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 (434 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 -- 61 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:05 2012 Optimize a model with 9904 rows, 7642 columns and 36300 nonzeros Presolve removed 14 rows and 420 columns Presolve time: 0.06s Presolved: 9890 rows, 7222 columns, 35880 nonzeros Variable types: 0 continuous, 7222 integer (7222 binary) Root relaxation: objective 0.000000e+00, 436 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 (436 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 16:46:05 2012 Optimize a model with 5074 rows, 3982 columns and 18150 nonzeros Presolve removed 14 rows and 210 columns Presolve time: 0.02s Presolved: 5060 rows, 3772 columns, 17940 nonzeros Variable types: 0 continuous, 3772 integer (3772 binary) Root relaxation: objective 0.000000e+00, 476 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 (748 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 -- 15 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:46:05 2012 Optimize a model with 2498 rows, 2030 columns and 8470 nonzeros Presolve removed 14 rows and 98 columns Presolve time: 0.01s Presolved: 2484 rows, 1932 columns, 8372 nonzeros Variable types: 0 continuous, 1932 integer (1932 binary) Root relaxation: objective 0.000000e+00, 431 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 (431 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 16:46:05 2012 Optimize a model with 1210 rows, 1054 columns and 3630 nonzeros Presolve removed 14 rows and 42 columns Presolve time: 0.00s Presolved: 1196 rows, 1012 columns, 3588 nonzeros Variable types: 0 continuous, 1012 integer (1012 binary) Root relaxation: objective 0.000000e+00, 519 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 (719 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 16:46:05 2012 Optimize a model with 566 rows, 566 columns and 1210 nonzeros Presolve removed 566 rows and 566 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 16:46:05 2012 Optimize a model with 888 rows, 810 columns and 2420 nonzeros Presolve removed 246 rows and 261 columns Presolve time: 0.00s Presolved: 642 rows, 549 columns, 1926 nonzeros Variable types: 0 continuous, 549 integer (549 binary) Root relaxation: objective 0.000000e+00, 256 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 0 224 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (882 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