
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:29:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1976.32.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/grafo1976.32.lp
Reading time = 0.11 seconds
: 38240 rows, 1395 columns, 115791 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 38240 rows, 1395 columns and 115791 nonzeros
Model fingerprint: 0x509e1e98
Variable types: 37 continuous, 1358 integer (1358 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 8319 rows and 25 columns
Presolve time: 0.37s
Presolved: 29921 rows, 1370 columns, 91103 nonzeros
Variable types: 0 continuous, 1370 integer (1333 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 17191 rows, 14100 columns, 65643 nonzeros


Root relaxation: objective 3.700000e+01, 3331 iterations, 1.98 seconds (1.23 work units)
Total elapsed time = 5.16s (DegenMoves)

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

     0     0   37.00000    0  475    4.00000   37.00000   825%     -    5s
H    0     0                       5.0000000   37.00000   640%     -    6s
H    0     0                       6.0000000   37.00000   517%     -    8s
H    0     0                       7.0000000   37.00000   429%     -    8s
     0     0   37.00000    0  663    7.00000   37.00000   429%     -   13s
     0     0   37.00000    0  651    7.00000   37.00000   429%     -   14s
H    0     0                       8.0000000   37.00000   362%     -   26s
     0     0   36.00000    0  370    8.00000   36.00000   350%     -   26s
     0     0   36.00000    0  339    8.00000   36.00000   350%     -   26s
     0     0   36.00000    0  418    8.00000   36.00000   350%     -   34s
     0     0   36.00000    0  430    8.00000   36.00000   350%     -   34s
     0     0   36.00000    0  442    8.00000   36.00000   350%     -   41s
     0     0   36.00000    0  403    8.00000   36.00000   350%     -   42s
     0     0   36.00000    0  413    8.00000   36.00000   350%     -   46s
     0     0   36.00000    0  409    8.00000   36.00000   350%     -   47s
     0     0          -    0         8.00000   36.00000   350%     -   50s

Cutting planes:
  Cover: 29
  Clique: 3
  MIR: 190
  GUB cover: 9
  Zero half: 63
  RLT: 58
  Relax-and-lift: 1
  BQP: 1

Explored 1 nodes (53792 simplex iterations) in 50.05 seconds (29.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 6 ... 4

Time limit reached
Best objective 8.000000000000e+00, best bound 3.600000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo1976.32.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 11:02:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1976.32.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/grafo1976.32.lp
Reading time = 0.06 seconds
: 38240 rows, 1395 columns, 115791 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 38240 rows, 1395 columns and 115791 nonzeros
Model fingerprint: 0x509e1e98
Variable types: 37 continuous, 1358 integer (1358 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 8319 rows and 25 columns
Presolve time: 0.23s
Presolved: 29921 rows, 1370 columns, 91103 nonzeros
Variable types: 0 continuous, 1370 integer (1333 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 17191 rows, 14100 columns, 65643 nonzeros


Root relaxation: objective 3.700000e+01, 3331 iterations, 1.34 seconds (1.23 work units)

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

     0     0   37.00000    0  475    4.00000   37.00000   825%     -    4s
H    0     0                       5.0000000   37.00000   640%     -    4s
H    0     0                       6.0000000   37.00000   517%     -    5s
H    0     0                       7.0000000   37.00000   429%     -    5s
     0     0   37.00000    0  663    7.00000   37.00000   429%     -    9s
     0     0   37.00000    0  651    7.00000   37.00000   429%     -   10s
H    0     0                       8.0000000   37.00000   362%     -   17s
     0     0   36.00000    0  370    8.00000   36.00000   350%     -   17s
     0     0   36.00000    0  339    8.00000   36.00000   350%     -   18s
     0     0   36.00000    0  418    8.00000   36.00000   350%     -   23s
     0     0   36.00000    0  430    8.00000   36.00000   350%     -   24s
     0     0   36.00000    0  442    8.00000   36.00000   350%     -   28s
     0     0   36.00000    0  403    8.00000   36.00000   350%     -   28s
     0     0   36.00000    0  413    8.00000   36.00000   350%     -   31s
     0     0   36.00000    0  409    8.00000   36.00000   350%     -   32s
H    0     0                       9.0000000   36.00000   300%     -   39s
     0     0   36.00000    0  403    9.00000   36.00000   300%     -   39s
     0     0   36.00000    0  410    9.00000   36.00000   300%     -   39s
H    0     0                      10.0000000   36.00000   260%     -   45s
H    0     0                      11.0000000   36.00000   227%     -   45s
     0     0   36.00000    0  323   11.00000   36.00000   227%     -   45s
     0     0   36.00000    0  274   11.00000   36.00000   227%     -   45s
     0     0   36.00000    0  371   11.00000   36.00000   227%     -   49s
     0     0   36.00000    0  371   11.00000   36.00000   227%     -   50s

Cutting planes:
  Clique: 1
  MIR: 5
  RLT: 8

Explored 1 nodes (82775 simplex iterations) in 50.01 seconds (43.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 3.600000000000e+01, gap 227.2727%

Wrote result file './lp_solutions/grafo1976.32.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 04:05:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1976.32.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/grafo1976.32.lp
Reading time = 0.06 seconds
: 38240 rows, 1395 columns, 115791 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 38240 rows, 1395 columns and 115791 nonzeros
Model fingerprint: 0x509e1e98
Variable types: 37 continuous, 1358 integer (1358 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 8319 rows and 25 columns
Presolve time: 0.24s
Presolved: 29921 rows, 1370 columns, 91103 nonzeros
Variable types: 0 continuous, 1370 integer (1333 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 17191 rows, 14100 columns, 65643 nonzeros


Root relaxation: objective 3.700000e+01, 3331 iterations, 1.32 seconds (1.23 work units)

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

     0     0   37.00000    0  475    4.00000   37.00000   825%     -    4s
H    0     0                       5.0000000   37.00000   640%     -    4s
H    0     0                       6.0000000   37.00000   517%     -    5s
H    0     0                       7.0000000   37.00000   429%     -    5s
     0     0   37.00000    0  663    7.00000   37.00000   429%     -    9s
     0     0   37.00000    0  651    7.00000   37.00000   429%     -    9s
H    0     0                       8.0000000   37.00000   362%     -   17s
     0     0   36.00000    0  370    8.00000   36.00000   350%     -   17s
     0     0   36.00000    0  339    8.00000   36.00000   350%     -   17s
     0     0   36.00000    0  418    8.00000   36.00000   350%     -   23s
     0     0   36.00000    0  430    8.00000   36.00000   350%     -   23s
     0     0   36.00000    0  442    8.00000   36.00000   350%     -   28s
     0     0   36.00000    0  403    8.00000   36.00000   350%     -   28s
     0     0   36.00000    0  413    8.00000   36.00000   350%     -   31s
     0     0   36.00000    0  409    8.00000   36.00000   350%     -   32s
H    0     0                       9.0000000   36.00000   300%     -   39s
     0     0   36.00000    0  403    9.00000   36.00000   300%     -   39s
     0     0   36.00000    0  410    9.00000   36.00000   300%     -   39s
H    0     0                      10.0000000   36.00000   260%     -   45s
H    0     0                      11.0000000   36.00000   227%     -   45s
     0     0   36.00000    0  323   11.00000   36.00000   227%     -   45s
     0     0   36.00000    0  274   11.00000   36.00000   227%     -   45s
     0     0   36.00000    0  371   11.00000   36.00000   227%     -   48s
     0     0   36.00000    0  321   11.00000   36.00000   227%     -   49s

Cutting planes:
  Clique: 1
  MIR: 1
  RLT: 5

Explored 1 nodes (83325 simplex iterations) in 50.02 seconds (44.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 3.600000000000e+01, gap 227.2727%

Wrote result file './lp_solutions/grafo1976.32.sol'

