
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:19:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1581.46.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/grafo1581.46.lp
Reading time = 0.12 seconds
: 53766 rows, 1999 columns, 162550 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 53766 rows, 1999 columns and 162550 nonzeros
Model fingerprint: 0x518b93fc
Variable types: 40 continuous, 1959 integer (1959 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 2337 rows and 32 columns
Presolve time: 0.63s
Presolved: 51429 rows, 1967 columns, 155811 nonzeros
Variable types: 0 continuous, 1967 integer (1927 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 26369 rows, 27027 columns, 105691 nonzeros


Root relaxation: objective 2.800000e+01, 3977 iterations, 2.42 seconds (1.47 work units)
Total elapsed time = 6.16s (DegenMoves)

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

     0     0   28.00000    0  352    7.00000   28.00000   300%     -    7s
H    0     0                       9.0000000   28.00000   211%     -    7s
H    0     0                      10.0000000   28.00000   180%     -   10s
     0     0   28.00000    0  533   10.00000   28.00000   180%     -   16s
     0     0   28.00000    0  541   10.00000   28.00000   180%     -   16s
     0     0   28.00000    0  278   10.00000   28.00000   180%     -   30s
     0     0   28.00000    0  267   10.00000   28.00000   180%     -   30s
     0     0   28.00000    0  379   10.00000   28.00000   180%     -   41s
     0     0   28.00000    0  432   10.00000   28.00000   180%     -   42s
     0     0   28.00000    0  463   10.00000   28.00000   180%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 2
  MIR: 127
  StrongCG: 1
  GUB cover: 2
  Zero half: 35
  RLT: 35

Explored 1 nodes (40459 simplex iterations) in 50.10 seconds (25.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 7 4 

Time limit reached
Best objective 1.000000000000e+01, best bound 2.800000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo1581.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:14:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1581.46.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/grafo1581.46.lp
Reading time = 0.11 seconds
: 53766 rows, 1999 columns, 162550 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 53766 rows, 1999 columns and 162550 nonzeros
Model fingerprint: 0x518b93fc
Variable types: 40 continuous, 1959 integer (1959 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 2337 rows and 32 columns
Presolve time: 0.51s
Presolved: 51429 rows, 1967 columns, 155811 nonzeros
Variable types: 0 continuous, 1967 integer (1927 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 26369 rows, 27027 columns, 105691 nonzeros


Root relaxation: objective 2.800000e+01, 3977 iterations, 2.66 seconds (1.47 work units)
Total elapsed time = 6.13s (DegenMoves)

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

     0     0   28.00000    0  352    7.00000   28.00000   300%     -    7s
H    0     0                       9.0000000   28.00000   211%     -    7s
H    0     0                      10.0000000   28.00000   180%     -   10s
     0     0   28.00000    0  533   10.00000   28.00000   180%     -   15s
     0     0   28.00000    0  541   10.00000   28.00000   180%     -   16s
     0     0   28.00000    0  278   10.00000   28.00000   180%     -   31s
     0     0   28.00000    0  267   10.00000   28.00000   180%     -   31s
     0     0   28.00000    0  379   10.00000   28.00000   180%     -   42s
     0     0   28.00000    0  432   10.00000   28.00000   180%     -   43s
     0     0   28.00000    0  463   10.00000   28.00000   180%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 2
  MIR: 127
  StrongCG: 1
  GUB cover: 2
  Zero half: 35
  RLT: 35

Explored 1 nodes (39911 simplex iterations) in 50.08 seconds (25.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 7 4 

Time limit reached
Best objective 1.000000000000e+01, best bound 2.800000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo1581.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:17:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1581.46.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/grafo1581.46.lp
Reading time = 0.10 seconds
: 53766 rows, 1999 columns, 162550 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 53766 rows, 1999 columns and 162550 nonzeros
Model fingerprint: 0x518b93fc
Variable types: 40 continuous, 1959 integer (1959 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 2337 rows and 32 columns
Presolve time: 0.48s
Presolved: 51429 rows, 1967 columns, 155811 nonzeros
Variable types: 0 continuous, 1967 integer (1927 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 26369 rows, 27027 columns, 105691 nonzeros


Root relaxation: objective 2.800000e+01, 3977 iterations, 2.04 seconds (1.47 work units)
Total elapsed time = 5.13s (DegenMoves)

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

     0     0   28.00000    0  352    7.00000   28.00000   300%     -    6s
H    0     0                       9.0000000   28.00000   211%     -    6s
H    0     0                      10.0000000   28.00000   180%     -    8s
     0     0   28.00000    0  533   10.00000   28.00000   180%     -   12s
     0     0   28.00000    0  541   10.00000   28.00000   180%     -   12s
     0     0   28.00000    0  278   10.00000   28.00000   180%     -   24s
     0     0   28.00000    0  267   10.00000   28.00000   180%     -   24s
     0     0   28.00000    0  379   10.00000   28.00000   180%     -   33s
     0     0   28.00000    0  432   10.00000   28.00000   180%     -   34s
H    0     0                      11.0000000   28.00000   155%     -   43s
H    0     0                      12.0000000   28.00000   133%     -   43s
     0     0   28.00000    0  369   12.00000   28.00000   133%     -   43s
     0     0   28.00000    0  276   12.00000   28.00000   133%     -   43s
     0     0   28.00000    0  501   12.00000   28.00000   133%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 16
  Clique: 2
  MIR: 68
  StrongCG: 2
  GUB cover: 4
  Inf proof: 1
  Zero half: 21
  RLT: 38

Explored 1 nodes (53281 simplex iterations) in 50.07 seconds (32.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 2.800000000000e+01, gap 133.3333%

Wrote result file './lp_solutions/grafo1581.46.sol'

