
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:25:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3691.41.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo3691.41.lp
Reading time = 0.18 seconds
: 91244 rows, 2054 columns, 275281 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 91244 rows, 2054 columns and 275281 nonzeros
Model fingerprint: 0x4daea38b
Variable types: 43 continuous, 2011 integer (2011 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 26248 rows and 21 columns
Presolve time: 0.93s
Presolved: 64996 rows, 2033 columns, 196864 nonzeros
Variable types: 0 continuous, 2033 integer (1990 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2033 rows, 67029 columns, 198897 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19493    4.9842239e+01   0.000000e+00   3.275610e+03      5s
   30735    5.0000000e+01   0.000000e+00   0.000000e+00      8s
   30735    5.0000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 5.000000e+01, 30735 iterations, 6.85 seconds (3.82 work units)
Total elapsed time = 20.04s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   50.00000    0  631    5.00000   50.00000   900%     -   24s
H    0     0                       6.0000000   50.00000   733%     -   24s
     0     0   50.00000    0  891    6.00000   50.00000   733%     -   43s
     0     0   50.00000    0  837    6.00000   50.00000   733%     -   47s

Cutting planes:
  Gomory: 2
  Cover: 8
  Clique: 7
  MIR: 117
  GUB cover: 1
  Zero half: 8
  RLT: 39

Explored 1 nodes (54053 simplex iterations) in 50.25 seconds (34.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 5 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.000000000000e+01, gap 733.3333%

Wrote result file './lp_solutions/grafo3691.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:54:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3691.41.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo3691.41.lp
Reading time = 0.14 seconds
: 91244 rows, 2054 columns, 275281 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 91244 rows, 2054 columns and 275281 nonzeros
Model fingerprint: 0x4daea38b
Variable types: 43 continuous, 2011 integer (2011 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 26248 rows and 21 columns
Presolve time: 0.64s
Presolved: 64996 rows, 2033 columns, 196864 nonzeros
Variable types: 0 continuous, 2033 integer (1990 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2033 rows, 67029 columns, 198897 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27677    4.9836032e+01   0.000000e+00   1.251129e+03      5s
   30735    5.0000000e+01   0.000000e+00   0.000000e+00      6s
   30735    5.0000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 5.000000e+01, 30735 iterations, 4.83 seconds (3.82 work units)
Total elapsed time = 15.04s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   50.00000    0  631    5.00000   50.00000   900%     -   18s
H    0     0                       6.0000000   50.00000   733%     -   18s
     0     0   50.00000    0  891    6.00000   50.00000   733%     -   32s
     0     0   50.00000    0  837    6.00000   50.00000   733%     -   35s
     0     0   50.00000    0  937    6.00000   50.00000   733%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 8
  Clique: 7
  MIR: 106
  GUB cover: 1
  Zero half: 66
  RLT: 94

Explored 1 nodes (62099 simplex iterations) in 50.07 seconds (45.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 5 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.000000000000e+01, gap 733.3333%

Wrote result file './lp_solutions/grafo3691.41.sol'

