current bounds on the number of colors: 0 -- 196 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:57 2012 Optimize a model with 19796 rows, 19408 columns and 78008 nonzeros Presolve removed 24 rows and 2352 columns Presolve time: 0.13s Presolved: 19772 rows, 17056 columns, 75656 nonzeros Variable types: 0 continuous, 17056 integer (17056 binary) Root relaxation: objective 0.000000e+00, 321 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 (321 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 -- 98 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:57 2012 Optimize a model with 9996 rows, 9804 columns and 39004 nonzeros Presolve removed 24 rows and 1176 columns Presolve time: 0.09s Presolved: 9972 rows, 8628 columns, 37828 nonzeros Variable types: 0 continuous, 8628 integer (8628 binary) Root relaxation: objective 0.000000e+00, 326 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 (492 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 16:28:58 2012 Optimize a model with 4996 rows, 4904 columns and 19104 nonzeros Presolve removed 24 rows and 576 columns Presolve time: 0.03s Presolved: 4972 rows, 4328 columns, 18528 nonzeros Variable types: 0 continuous, 4328 integer (4328 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 0.04 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 16:28:58 2012 Optimize a model with 2596 rows, 2552 columns and 9552 nonzeros Presolve removed 24 rows and 288 columns Presolve time: 0.01s Presolved: 2572 rows, 2264 columns, 9264 nonzeros Variable types: 0 continuous, 2264 integer (2264 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 (497 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 16:28:58 2012 Optimize a model with 1396 rows, 1376 columns and 4776 nonzeros Presolve removed 24 rows and 144 columns Presolve time: 0.00s Presolved: 1372 rows, 1232 columns, 4632 nonzeros Variable types: 0 continuous, 1232 integer (1232 binary) Root relaxation: objective 0.000000e+00, 297 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 (422 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 16:28:58 2012 Optimize a model with 796 rows, 788 columns and 2388 nonzeros Presolve removed 24 rows and 72 columns Presolve time: 0.00s Presolved: 772 rows, 716 columns, 2316 nonzeros Variable types: 0 continuous, 716 integer (716 binary) Root relaxation: objective 0.000000e+00, 331 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 (467 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 16:28:58 2012 Optimize a model with 396 rows, 396 columns and 796 nonzeros Presolve removed 396 rows and 396 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 16:28:58 2012 Optimize a model with 596 rows, 592 columns and 1592 nonzeros Presolve removed 202 rows and 229 columns Presolve time: 0.00s Presolved: 394 rows, 363 columns, 1182 nonzeros Variable types: 0 continuous, 363 integer (363 binary) Root relaxation: objective 0.000000e+00, 185 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 0 156 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (617 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