
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:48:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2052.38.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/grafo2052.38.lp
Reading time = 0.10 seconds
: 84776 rows, 2015 columns, 256028 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 84776 rows, 2015 columns and 256028 nonzeros
Model fingerprint: 0x827307d4
Variable types: 45 continuous, 1970 integer (1970 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 22445 rows and 37 columns
Presolve time: 0.49s
Presolved: 62331 rows, 1978 columns, 189060 nonzeros
Variable types: 0 continuous, 1978 integer (1933 binary)
Root relaxation presolved: 1978 rows, 64309 columns, 191038 nonzeros


Root relaxation: objective 4.300000e+01, 2955 iterations, 0.72 seconds (1.10 work units)
Total elapsed time = 6.75s (DegenMoves)

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

     0     0   43.00000    0  556          -   43.00000      -     -    9s
H    0     0                       6.0000000   43.00000   617%     -    9s
H    0     0                       8.0000000   43.00000   438%     -    9s
H    0     0                      10.0000000   43.00000   330%     -    9s
     0     0   43.00000    0 1021   10.00000   43.00000   330%     -   24s
     0     0   43.00000    0  978   10.00000   43.00000   330%     -   27s
     0     0   43.00000    0  768   10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 7
  Clique: 21
  MIR: 114
  StrongCG: 2
  Zero half: 66
  RLT: 70
  BQP: 2

Explored 1 nodes (46089 simplex iterations) in 50.08 seconds (54.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo2052.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:32:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2052.38.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/grafo2052.38.lp
Reading time = 0.14 seconds
: 84776 rows, 2015 columns, 256028 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 84776 rows, 2015 columns and 256028 nonzeros
Model fingerprint: 0x827307d4
Variable types: 45 continuous, 1970 integer (1970 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 22445 rows and 37 columns
Presolve time: 0.61s
Presolved: 62331 rows, 1978 columns, 189060 nonzeros
Variable types: 0 continuous, 1978 integer (1933 binary)
Root relaxation presolved: 1978 rows, 64309 columns, 191038 nonzeros


Root relaxation: objective 4.300000e+01, 2955 iterations, 0.92 seconds (1.10 work units)
Total elapsed time = 8.45s (DegenMoves)
Total elapsed time = 10.67s (DegenMoves)

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

     0     0   43.00000    0  556          -   43.00000      -     -   11s
H    0     0                       6.0000000   43.00000   617%     -   11s
H    0     0                       8.0000000   43.00000   438%     -   11s
H    0     0                      10.0000000   43.00000   330%     -   11s
     0     0   43.00000    0 1021   10.00000   43.00000   330%     -   28s
     0     0   43.00000    0  978   10.00000   43.00000   330%     -   32s
     0     0   43.00000    0  948   10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 7
  Clique: 21
  MIR: 114
  StrongCG: 2
  Zero half: 66
  RLT: 70
  BQP: 2

Explored 1 nodes (36823 simplex iterations) in 50.09 seconds (44.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo2052.38.sol'

