
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:50:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6531.38.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/grafo6531.38.lp
Reading time = 0.16 seconds
: 92042 rows, 2078 columns, 277918 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 92042 rows, 2078 columns and 277918 nonzeros
Model fingerprint: 0x76c656b2
Variable types: 46 continuous, 2032 integer (2032 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 25961 rows and 26 columns
Presolve time: 0.84s
Presolved: 66081 rows, 2052 columns, 200368 nonzeros
Variable types: 0 continuous, 2052 integer (2006 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2052 rows, 68133 columns, 202420 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21651    5.0757655e+01   0.000000e+00   8.732503e+03      5s
   40639    5.1000000e+01   0.000000e+00   0.000000e+00      9s
   40639    5.1000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 5.100000e+01, 40639 iterations, 7.99 seconds (5.59 work units)
Total elapsed time = 18.35s (DegenMoves)
Total elapsed time = 20.18s (DegenMoves)

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

     0     0   51.00000    0  540    4.00000   51.00000  1175%     -   21s
H    0     0                       9.0000000   51.00000   467%     -   24s
H    0     0                      10.0000000   51.00000   410%     -   24s
H    0     0                      11.0000000   51.00000   364%     -   24s
     0     0   51.00000    0  939   11.00000   51.00000   364%     -   43s
H    0     0                      12.0000000   51.00000   325%     -   44s
     0     0   51.00000    0  915   12.00000   51.00000   325%     -   47s

Cutting planes:
  Gomory: 1
  Cover: 6
  Clique: 16
  MIR: 140
  Zero half: 58
  RLT: 58
  BQP: 2

Explored 1 nodes (64735 simplex iterations) in 50.55 seconds (38.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 5.100000000000e+01, gap 325.0000%

Wrote result file './lp_solutions/grafo6531.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:46:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6531.38.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/grafo6531.38.lp
Reading time = 0.15 seconds
: 92042 rows, 2078 columns, 277918 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 92042 rows, 2078 columns and 277918 nonzeros
Model fingerprint: 0x76c656b2
Variable types: 46 continuous, 2032 integer (2032 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 25961 rows and 26 columns
Presolve time: 0.63s
Presolved: 66081 rows, 2052 columns, 200368 nonzeros
Variable types: 0 continuous, 2052 integer (2006 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2052 rows, 68133 columns, 202420 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25743    5.0751873e+01   0.000000e+00   2.863968e+03      5s
   40639    5.1000000e+01   0.000000e+00   0.000000e+00      8s
   40639    5.1000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 5.100000e+01, 40639 iterations, 7.03 seconds (5.59 work units)
Total elapsed time = 16.03s (DegenMoves)

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

     0     0   51.00000    0  540    4.00000   51.00000  1175%     -   19s
H    0     0                       9.0000000   51.00000   467%     -   21s
H    0     0                      10.0000000   51.00000   410%     -   21s
H    0     0                      11.0000000   51.00000   364%     -   21s
     0     0   51.00000    0  939   11.00000   51.00000   364%     -   37s
H    0     0                      12.0000000   51.00000   325%     -   38s
     0     0   51.00000    0  915   12.00000   51.00000   325%     -   41s
     0     0          -    0        12.00000   51.00000   325%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 6
  Clique: 16
  MIR: 138
  Zero half: 69
  RLT: 76
  BQP: 2

Explored 1 nodes (68182 simplex iterations) in 50.10 seconds (44.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 5.100000000000e+01, gap 325.0000%

Wrote result file './lp_solutions/grafo6531.38.sol'

