
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:16:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2874.50.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/grafo2874.50.lp
Reading time = 0.14 seconds
: 63913 rows, 2260 columns, 193146 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 63913 rows, 2260 columns and 193146 nonzeros
Model fingerprint: 0x00b66715
Variable types: 42 continuous, 2218 integer (2218 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 1124 rows and 34 columns
Presolve time: 0.73s
Presolved: 62789 rows, 2226 columns, 190045 nonzeros
Variable types: 0 continuous, 2226 integer (2184 binary)
Root relaxation presolved: 2226 rows, 65015 columns, 192271 nonzeros


Root relaxation: objective 2.500000e+01, 16712 iterations, 3.11 seconds (2.04 work units)
Total elapsed time = 7.74s (DegenMoves)
Total elapsed time = 11.89s (DegenMoves)

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

     0     0   25.00000    0  192          -   25.00000      -     -   13s
H    0     0                      10.0000000   25.00000   150%     -   13s
H    0     0                      13.0000000   25.00000  92.3%     -   13s
H    0     0                      14.0000000   25.00000  78.6%     -   15s
     0     0   25.00000    0  380   14.00000   25.00000  78.6%     -   16s
     0     0   25.00000    0  367   14.00000   25.00000  78.6%     -   18s
H    0     0                      15.0000000   24.00000  60.0%     -   26s
     0     0   24.00000    0  148   15.00000   24.00000  60.0%     -   26s
     0     0   24.00000    0  148   15.00000   24.00000  60.0%     -   27s
     0     0   24.00000    0  237   15.00000   24.00000  60.0%     -   34s
     0     0   24.00000    0  171   15.00000   24.00000  60.0%     -   34s
     0     0   24.00000    0  312   15.00000   24.00000  60.0%     -   39s
     0     0   24.00000    0  306   15.00000   24.00000  60.0%     -   40s
     0     0   24.00000    0  310   15.00000   24.00000  60.0%     -   46s
     0     0   24.00000    0  314   15.00000   24.00000  60.0%     -   47s
     0     0   24.00000    0  320   15.00000   24.00000  60.0%     -   50s

Cutting planes:
  Cover: 9
  Clique: 4
  MIR: 55
  GUB cover: 1
  Zero half: 17
  RLT: 28

Explored 1 nodes (58894 simplex iterations) in 50.12 seconds (27.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 13 10 

Time limit reached
Best objective 1.500000000000e+01, best bound 2.400000000000e+01, gap 60.0000%

Wrote result file './lp_solutions/grafo2874.50.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:21:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2874.50.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/grafo2874.50.lp
Reading time = 0.15 seconds
: 63913 rows, 2260 columns, 193146 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 63913 rows, 2260 columns and 193146 nonzeros
Model fingerprint: 0x00b66715
Variable types: 42 continuous, 2218 integer (2218 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 1124 rows and 34 columns
Presolve time: 0.63s
Presolved: 62789 rows, 2226 columns, 190045 nonzeros
Variable types: 0 continuous, 2226 integer (2184 binary)
Root relaxation presolved: 2226 rows, 65015 columns, 192271 nonzeros


Root relaxation: objective 2.500000e+01, 16712 iterations, 3.21 seconds (2.04 work units)
Total elapsed time = 7.97s (DegenMoves)
Total elapsed time = 12.72s (DegenMoves)

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

     0     0   25.00000    0  192          -   25.00000      -     -   13s
H    0     0                      10.0000000   25.00000   150%     -   14s
H    0     0                      13.0000000   25.00000  92.3%     -   14s
H    0     0                      14.0000000   25.00000  78.6%     -   15s
     0     0   25.00000    0  380   14.00000   25.00000  78.6%     -   16s
     0     0   25.00000    0  367   14.00000   25.00000  78.6%     -   18s
H    0     0                      15.0000000   24.00000  60.0%     -   26s
     0     0   24.00000    0  148   15.00000   24.00000  60.0%     -   26s
     0     0   24.00000    0  148   15.00000   24.00000  60.0%     -   27s
     0     0   24.00000    0  237   15.00000   24.00000  60.0%     -   34s
     0     0   24.00000    0  171   15.00000   24.00000  60.0%     -   34s
     0     0   24.00000    0  312   15.00000   24.00000  60.0%     -   39s
     0     0   24.00000    0  306   15.00000   24.00000  60.0%     -   40s
     0     0   24.00000    0  310   15.00000   24.00000  60.0%     -   46s
     0     0   24.00000    0  314   15.00000   24.00000  60.0%     -   47s
     0     0   24.00000    0  320   15.00000   24.00000  60.0%     -   50s

Cutting planes:
  Cover: 9
  Clique: 4
  MIR: 55
  GUB cover: 1
  Zero half: 17
  RLT: 28

Explored 1 nodes (58204 simplex iterations) in 50.10 seconds (27.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 13 10 

Time limit reached
Best objective 1.500000000000e+01, best bound 2.400000000000e+01, gap 60.0000%

Wrote result file './lp_solutions/grafo2874.50.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:24:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2874.50.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/grafo2874.50.lp
Reading time = 0.12 seconds
: 63913 rows, 2260 columns, 193146 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 63913 rows, 2260 columns and 193146 nonzeros
Model fingerprint: 0x00b66715
Variable types: 42 continuous, 2218 integer (2218 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 1124 rows and 34 columns
Presolve time: 0.51s
Presolved: 62789 rows, 2226 columns, 190045 nonzeros
Variable types: 0 continuous, 2226 integer (2184 binary)
Root relaxation presolved: 2226 rows, 65015 columns, 192271 nonzeros


Root relaxation: objective 2.500000e+01, 16712 iterations, 2.71 seconds (2.04 work units)
Total elapsed time = 6.59s (DegenMoves)
Total elapsed time = 10.46s (DegenMoves)

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

     0     0   25.00000    0  192          -   25.00000      -     -   11s
H    0     0                      10.0000000   25.00000   150%     -   11s
H    0     0                      13.0000000   25.00000  92.3%     -   11s
H    0     0                      14.0000000   25.00000  78.6%     -   12s
     0     0   25.00000    0  380   14.00000   25.00000  78.6%     -   14s
     0     0   25.00000    0  367   14.00000   25.00000  78.6%     -   15s
H    0     0                      15.0000000   24.00000  60.0%     -   22s
     0     0   24.00000    0  148   15.00000   24.00000  60.0%     -   22s
     0     0   24.00000    0  148   15.00000   24.00000  60.0%     -   22s
     0     0   24.00000    0  237   15.00000   24.00000  60.0%     -   28s
     0     0   24.00000    0  171   15.00000   24.00000  60.0%     -   29s
     0     0   24.00000    0  312   15.00000   24.00000  60.0%     -   33s
     0     0   24.00000    0  306   15.00000   24.00000  60.0%     -   34s
     0     0   24.00000    0  310   15.00000   24.00000  60.0%     -   39s
     0     0   24.00000    0  314   15.00000   24.00000  60.0%     -   40s
     0     0   24.00000    0  320   15.00000   24.00000  60.0%     -   45s
     0     0   24.00000    0  331   15.00000   24.00000  60.0%     -   45s
     0     0   24.00000    0  173   15.00000   24.00000  60.0%     -   50s

Cutting planes:
  Cover: 8
  Clique: 3
  MIR: 52
  StrongCG: 1
  Zero half: 16
  RLT: 30
  Relax-and-lift: 1

Explored 1 nodes (67453 simplex iterations) in 50.16 seconds (31.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 13 10 

Time limit reached
Best objective 1.500000000000e+01, best bound 2.400000000000e+01, gap 60.0000%

Wrote result file './lp_solutions/grafo2874.50.sol'

