
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:31:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6820.46.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/grafo6820.46.lp
Reading time = 0.11 seconds
: 58110 rows, 2112 columns, 175698 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 58110 rows, 2112 columns and 175698 nonzeros
Model fingerprint: 0x2445df07
Variable types: 42 continuous, 2070 integer (2070 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 3126 rows and 1 columns
Presolve time: 0.54s
Presolved: 54984 rows, 2111 columns, 166582 nonzeros
Variable types: 0 continuous, 2111 integer (2069 binary)
Root relaxation presolved: 28324 rows, 28771 columns, 113262 nonzeros


Root relaxation: objective 3.400000e+01, 2304 iterations, 1.25 seconds (0.70 work units)

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

     0     0   34.00000    0  555          -   34.00000      -     -    5s
H    0     0                       4.0000000   34.00000   750%     -    5s
H    0     0                       6.0000000   34.00000   467%     -    5s
H    0     0                       9.0000000   34.00000   278%     -    5s
     0     0   34.00000    0  808    9.00000   34.00000   278%     -   14s
H    0     0                      11.0000000   34.00000   209%     -   14s
     0     0   34.00000    0  777   11.00000   34.00000   209%     -   14s
     0     0   34.00000    0  559   11.00000   34.00000   209%     -   42s
     0     0   34.00000    0  486   11.00000   34.00000   209%     -   43s
     0     0          -    0        11.00000   34.00000   209%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 35
  MIR: 117
  StrongCG: 3
  Zero half: 29
  RLT: 59

Explored 1 nodes (35143 simplex iterations) in 50.08 seconds (28.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 9 6 4 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.400000000000e+01, gap 209.0909%

Wrote result file './lp_solutions/grafo6820.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:16:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6820.46.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/grafo6820.46.lp
Reading time = 0.13 seconds
: 58110 rows, 2112 columns, 175698 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 58110 rows, 2112 columns and 175698 nonzeros
Model fingerprint: 0x2445df07
Variable types: 42 continuous, 2070 integer (2070 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 3126 rows and 1 columns
Presolve time: 0.45s
Presolved: 54984 rows, 2111 columns, 166582 nonzeros
Variable types: 0 continuous, 2111 integer (2069 binary)
Root relaxation presolved: 28324 rows, 28771 columns, 113262 nonzeros


Root relaxation: objective 3.400000e+01, 2304 iterations, 1.11 seconds (0.70 work units)

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

     0     0   34.00000    0  555          -   34.00000      -     -    4s
H    0     0                       4.0000000   34.00000   750%     -    5s
H    0     0                       6.0000000   34.00000   467%     -    5s
H    0     0                       9.0000000   34.00000   278%     -    5s
     0     0   34.00000    0  808    9.00000   34.00000   278%     -   14s
H    0     0                      11.0000000   34.00000   209%     -   14s
     0     0   34.00000    0  777   11.00000   34.00000   209%     -   14s
     0     0   34.00000    0  559   11.00000   34.00000   209%     -   45s
     0     0   34.00000    0  486   11.00000   34.00000   209%     -   46s
     0     0          -    0        11.00000   34.00000   209%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 35
  MIR: 117
  StrongCG: 3
  Zero half: 29
  RLT: 59

Explored 1 nodes (33092 simplex iterations) in 50.08 seconds (27.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 9 6 4 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.400000000000e+01, gap 209.0909%

Wrote result file './lp_solutions/grafo6820.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:19:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6820.46.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/grafo6820.46.lp
Reading time = 0.11 seconds
: 58110 rows, 2112 columns, 175698 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 58110 rows, 2112 columns and 175698 nonzeros
Model fingerprint: 0x2445df07
Variable types: 42 continuous, 2070 integer (2070 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 3126 rows and 1 columns
Presolve time: 0.38s
Presolved: 54984 rows, 2111 columns, 166582 nonzeros
Variable types: 0 continuous, 2111 integer (2069 binary)
Root relaxation presolved: 28324 rows, 28771 columns, 113262 nonzeros


Root relaxation: objective 3.400000e+01, 2304 iterations, 0.94 seconds (0.70 work units)

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

     0     0   34.00000    0  555          -   34.00000      -     -    3s
H    0     0                       4.0000000   34.00000   750%     -    4s
H    0     0                       6.0000000   34.00000   467%     -    4s
H    0     0                       9.0000000   34.00000   278%     -    4s
     0     0   34.00000    0  808    9.00000   34.00000   278%     -   11s
H    0     0                      11.0000000   34.00000   209%     -   11s
     0     0   34.00000    0  777   11.00000   34.00000   209%     -   11s
     0     0   34.00000    0  559   11.00000   34.00000   209%     -   36s
     0     0   34.00000    0  486   11.00000   34.00000   209%     -   37s
     0     0   34.00000    0  696   11.00000   34.00000   209%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 35
  MIR: 117
  StrongCG: 3
  Zero half: 29
  RLT: 59

Explored 1 nodes (41681 simplex iterations) in 50.07 seconds (32.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 9 6 4 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.400000000000e+01, gap 209.0909%

Wrote result file './lp_solutions/grafo6820.46.sol'

