
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:49:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6479.38.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/grafo6479.38.lp
Reading time = 0.11 seconds
: 64659 rows, 2075 columns, 195804 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 64659 rows, 2075 columns and 195804 nonzeros
Model fingerprint: 0xe5502bf5
Variable types: 47 continuous, 2028 integer (2028 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 1.0000000
Presolve removed 9368 rows and 30 columns
Presolve time: 0.47s
Presolved: 55291 rows, 2045 columns, 168064 nonzeros
Variable types: 0 continuous, 2045 integer (1998 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2045 rows, 57336 columns, 170109 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26014    4.6967982e+01   0.000000e+00   1.560748e+02      5s
   27311    4.7000000e+01   0.000000e+00   0.000000e+00      5s
   27311    4.7000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.700000e+01, 27311 iterations, 4.72 seconds (3.20 work units)
Total elapsed time = 14.74s (DegenMoves)
Total elapsed time = 15.19s (DegenMoves)

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

     0     0   47.00000    0  556    7.00000   47.00000   571%     -   15s
H    0     0                      10.0000000   47.00000   370%     -   15s
H    0     0                      11.0000000   47.00000   327%     -   18s
     0     0   47.00000    0  866   11.00000   47.00000   327%     -   31s
H    0     0                      12.0000000   47.00000   292%     -   31s
     0     0   47.00000    0  842   12.00000   47.00000   292%     -   35s
     0     0   47.00000    0  836   12.00000   47.00000   292%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 7
  Clique: 1
  MIR: 165
  StrongCG: 1
  GUB cover: 1
  Zero half: 42
  RLT: 71

Explored 1 nodes (58363 simplex iterations) in 50.09 seconds (36.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 1

Time limit reached
Best objective 1.200000000000e+01, best bound 4.700000000000e+01, gap 291.6667%

Wrote result file './lp_solutions/grafo6479.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:45:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6479.38.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/grafo6479.38.lp
Reading time = 0.10 seconds
: 64659 rows, 2075 columns, 195804 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 64659 rows, 2075 columns and 195804 nonzeros
Model fingerprint: 0xe5502bf5
Variable types: 47 continuous, 2028 integer (2028 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 1.0000000
Presolve removed 9368 rows and 30 columns
Presolve time: 0.42s
Presolved: 55291 rows, 2045 columns, 168064 nonzeros
Variable types: 0 continuous, 2045 integer (1998 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2045 rows, 57336 columns, 170109 nonzeros


Root relaxation: objective 4.700000e+01, 27311 iterations, 4.12 seconds (3.20 work units)
Total elapsed time = 13.17s (DegenMoves)

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

     0     0   47.00000    0  556    7.00000   47.00000   571%     -   14s
H    0     0                      10.0000000   47.00000   370%     -   14s
H    0     0                      11.0000000   47.00000   327%     -   16s
     0     0   47.00000    0  866   11.00000   47.00000   327%     -   27s
H    0     0                      12.0000000   47.00000   292%     -   28s
     0     0   47.00000    0  842   12.00000   47.00000   292%     -   30s
     0     0   47.00000    0  650   12.00000   47.00000   292%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 7
  Clique: 1
  MIR: 165
  StrongCG: 1
  GUB cover: 1
  Zero half: 42
  RLT: 71

Explored 1 nodes (66256 simplex iterations) in 50.06 seconds (43.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 1

Time limit reached
Best objective 1.200000000000e+01, best bound 4.700000000000e+01, gap 291.6667%

Wrote result file './lp_solutions/grafo6479.38.sol'

