
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:13:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2726.38.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/grafo2726.38.lp
Reading time = 0.25 seconds
: 107084 rows, 2296 columns, 323309 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 107084 rows, 2296 columns and 323309 nonzeros
Model fingerprint: 0xd5e670df
Variable types: 49 continuous, 2247 integer (2247 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]
Found heuristic solution: objective 2.0000000
Presolve removed 30866 rows and 23 columns
Presolve time: 1.06s
Presolved: 76218 rows, 2273 columns, 231163 nonzeros
Variable types: 0 continuous, 2273 integer (2224 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2264 rows, 78482 columns, 233436 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15678    5.8922011e+01   0.000000e+00   2.435875e+04      5s
   33183    5.8897038e+01   0.000000e+00   1.080906e+04     10s
   51142    5.8888342e+01   0.000000e+00   6.017321e+03     15s
   69889    5.8884935e+01   0.000000e+00   6.191231e+02     20s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     24s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     24s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 5.900000e+01, 82535 iterations, 22.49 seconds (15.29 work units)
Total elapsed time = 47.03s (DegenMoves)

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

     0     0   59.00000    0  934    8.00000   59.00000   637%     -   50s

Explored 1 nodes (98895 simplex iterations) in 50.03 seconds (39.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 2 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.900000000000e+01, gap 637.5000%

Wrote result file './lp_solutions/grafo2726.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:17:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2726.38.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/grafo2726.38.lp
Reading time = 0.18 seconds
: 107084 rows, 2296 columns, 323309 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 107084 rows, 2296 columns and 323309 nonzeros
Model fingerprint: 0xd5e670df
Variable types: 49 continuous, 2247 integer (2247 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]
Found heuristic solution: objective 2.0000000
Presolve removed 30866 rows and 23 columns
Presolve time: 0.77s
Presolved: 76218 rows, 2273 columns, 231163 nonzeros
Variable types: 0 continuous, 2273 integer (2224 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2264 rows, 78482 columns, 233436 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20681    5.8910878e+01   0.000000e+00   6.265500e+04      5s
   42897    5.8891222e+01   0.000000e+00   4.398485e+03     10s
   66517    5.8885276e+01   0.000000e+00   2.001439e+04     15s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     19s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     19s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.900000e+01, 82535 iterations, 17.69 seconds (15.29 work units)
Total elapsed time = 38.48s (DegenMoves)

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

     0     0   59.00000    0  934    8.00000   59.00000   637%     -   50s

Explored 1 nodes (107083 simplex iterations) in 50.02 seconds (55.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 2 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.900000000000e+01, gap 637.5000%

Wrote result file './lp_solutions/grafo2726.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:12:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2726.38.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/grafo2726.38.lp
Reading time = 0.17 seconds
: 107084 rows, 2296 columns, 323309 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 107084 rows, 2296 columns and 323309 nonzeros
Model fingerprint: 0xd5e670df
Variable types: 49 continuous, 2247 integer (2247 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]
Found heuristic solution: objective 2.0000000
Presolve removed 30866 rows and 23 columns
Presolve time: 0.73s
Presolved: 76218 rows, 2273 columns, 231163 nonzeros
Variable types: 0 continuous, 2273 integer (2224 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2264 rows, 78482 columns, 233436 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21489    5.8909538e+01   0.000000e+00   7.001629e+04      5s
   44845    5.8890426e+01   0.000000e+00   2.838384e+04     10s
   68740    5.8885050e+01   0.000000e+00   3.259875e+02     15s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     18s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     18s
   82535    5.9000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.900000e+01, 82535 iterations, 17.15 seconds (15.29 work units)
Total elapsed time = 37.27s (DegenMoves)

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

     0     0   59.00000    0  934    8.00000   59.00000   637%     -   50s

Explored 1 nodes (108346 simplex iterations) in 50.02 seconds (58.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 2 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.900000000000e+01, gap 637.5000%

Wrote result file './lp_solutions/grafo2726.38.sol'

