
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:44:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5771.42.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/grafo5771.42.lp
Reading time = 0.16 seconds
: 64031 rows, 2178 columns, 193856 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 64031 rows, 2178 columns and 193856 nonzeros
Model fingerprint: 0xada1623e
Variable types: 46 continuous, 2132 integer (2132 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 4.0000000
Presolve removed 6512 rows and 26 columns
Presolve time: 0.74s
Presolved: 57519 rows, 2152 columns, 174717 nonzeros
Variable types: 0 continuous, 2152 integer (2106 binary)
Found heuristic solution: objective 16.0000000
Root relaxation presolved: 2149 rows, 59668 columns, 176869 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19208    4.0973192e+01   0.000000e+00   1.924077e+04      5s
   39368    4.0963185e+01   0.000000e+00   3.184099e+02     10s
   43093    4.1000000e+01   0.000000e+00   0.000000e+00     11s
   43093    4.1000000e+01   0.000000e+00   0.000000e+00     11s
   43093    4.1000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.100000e+01, 43093 iterations, 10.49 seconds (6.33 work units)
Total elapsed time = 20.57s (DegenMoves)

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

     0     0   41.00000    0  426   16.00000   41.00000   156%     -   21s
     0     0   41.00000    0  633   16.00000   41.00000   156%     -   31s
     0     0   41.00000    0  645   16.00000   41.00000   156%     -   32s
     0     0   41.00000    0  690   16.00000   41.00000   156%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 27
  Cover: 10
  Clique: 3
  MIR: 120
  GUB cover: 2
  Zero half: 41
  RLT: 51

Explored 1 nodes (66765 simplex iterations) in 50.08 seconds (27.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 4 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.100000000000e+01, gap 156.2500%

Wrote result file './lp_solutions/grafo5771.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:25:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5771.42.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/grafo5771.42.lp
Reading time = 0.10 seconds
: 64031 rows, 2178 columns, 193856 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 64031 rows, 2178 columns and 193856 nonzeros
Model fingerprint: 0xada1623e
Variable types: 46 continuous, 2132 integer (2132 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 4.0000000
Presolve removed 6512 rows and 26 columns
Presolve time: 0.42s
Presolved: 57519 rows, 2152 columns, 174717 nonzeros
Variable types: 0 continuous, 2152 integer (2106 binary)
Found heuristic solution: objective 16.0000000
Root relaxation presolved: 2149 rows, 59668 columns, 176869 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28712    4.0965324e+01   0.000000e+00   1.378474e+04      5s
   43093    4.1000000e+01   0.000000e+00   0.000000e+00      8s
   43093    4.1000000e+01   0.000000e+00   0.000000e+00      8s
   43093    4.1000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.100000e+01, 43093 iterations, 7.27 seconds (6.33 work units)
Total elapsed time = 14.86s (DegenMoves)
Total elapsed time = 15.07s (DegenMoves)

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

     0     0   41.00000    0  426   16.00000   41.00000   156%     -   15s
     0     0   41.00000    0  633   16.00000   41.00000   156%     -   21s
     0     0   41.00000    0  645   16.00000   41.00000   156%     -   22s
     0     0   41.00000    0  491   16.00000   41.00000   156%     -   41s
     0     0   41.00000    0  458   16.00000   41.00000   156%     -   42s
     0     0   41.00000    0  555   16.00000   41.00000   156%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 27
  Clique: 5
  MIR: 162
  StrongCG: 1
  GUB cover: 2
  Zero half: 49
  RLT: 57
  BQP: 1

Explored 1 nodes (85430 simplex iterations) in 50.05 seconds (44.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 4 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.100000000000e+01, gap 156.2500%

Wrote result file './lp_solutions/grafo5771.42.sol'

