
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:56:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4036.45.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/grafo4036.45.lp
Reading time = 0.16 seconds
: 77568 rows, 2243 columns, 234391 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 77568 rows, 2243 columns and 234391 nonzeros
Model fingerprint: 0x2f059e53
Variable types: 45 continuous, 2198 integer (2198 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 11926 rows and 26 columns
Presolve time: 0.83s
Presolved: 65642 rows, 2217 columns, 198909 nonzeros
Variable types: 0 continuous, 2217 integer (2172 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2214 rows, 67856 columns, 201126 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18230    3.6769779e+01   0.000000e+00   7.179668e+03      5s
   29487    3.7000000e+01   0.000000e+00   0.000000e+00      8s
   29487    3.7000000e+01   0.000000e+00   0.000000e+00      8s
   29487    3.7000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 3.700000e+01, 29487 iterations, 7.22 seconds (4.18 work units)
Total elapsed time = 21.77s (DegenMoves)

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

     0     0   37.00000    0  557   10.00000   37.00000   270%     -   25s
H    0     0                      11.0000000   37.00000   236%     -   29s
     0     0   37.00000    0  855   11.00000   37.00000   236%     -   41s
H    0     0                      12.0000000   37.00000   208%     -   42s
     0     0   37.00000    0  751   12.00000   37.00000   208%     -   46s

Cutting planes:
  Gomory: 1
  Cover: 9
  Clique: 12
  MIR: 91
  Zero half: 66
  RLT: 49
  BQP: 1

Explored 1 nodes (51924 simplex iterations) in 50.57 seconds (30.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo4036.45.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:33:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4036.45.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/grafo4036.45.lp
Reading time = 0.12 seconds
: 77568 rows, 2243 columns, 234391 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 77568 rows, 2243 columns and 234391 nonzeros
Model fingerprint: 0x2f059e53
Variable types: 45 continuous, 2198 integer (2198 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 11926 rows and 26 columns
Presolve time: 0.54s
Presolved: 65642 rows, 2217 columns, 198909 nonzeros
Variable types: 0 continuous, 2217 integer (2172 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2214 rows, 67856 columns, 201126 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26150    3.6766381e+01   0.000000e+00   8.055188e+02      5s
   29487    3.7000000e+01   0.000000e+00   0.000000e+00      6s
   29487    3.7000000e+01   0.000000e+00   0.000000e+00      6s
   29487    3.7000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.700000e+01, 29487 iterations, 5.06 seconds (4.18 work units)
Total elapsed time = 16.54s (DegenMoves)

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

     0     0   37.00000    0  557   10.00000   37.00000   270%     -   18s
H    0     0                      11.0000000   37.00000   236%     -   21s
     0     0   37.00000    0  855   11.00000   37.00000   236%     -   30s
H    0     0                      12.0000000   37.00000   208%     -   30s
     0     0   37.00000    0  751   12.00000   37.00000   208%     -   33s
     0     0   37.00000    0  445   12.00000   37.00000   208%     -   49s

Cutting planes:
  Clique: 7
  MIR: 3
  RLT: 11

Explored 1 nodes (63865 simplex iterations) in 50.07 seconds (43.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo4036.45.sol'

