
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:38:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7157.43.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/grafo7157.43.lp
Reading time = 0.15 seconds
: 53914 rows, 2043 columns, 163237 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 53914 rows, 2043 columns and 163237 nonzeros
Model fingerprint: 0x85b81825
Variable types: 44 continuous, 1999 integer (1999 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 1943 rows and 58 columns
Presolve time: 0.70s
Presolved: 51971 rows, 1985 columns, 157829 nonzeros
Variable types: 0 continuous, 1985 integer (1941 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 26386 rows, 27570 columns, 106659 nonzeros


Root relaxation: objective 2.700000e+01, 3900 iterations, 2.67 seconds (1.57 work units)
Total elapsed time = 7.91s (DegenMoves)

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

     0     0   27.00000    0  397    4.00000   27.00000   575%     -    9s
H    0     0                       7.0000000   27.00000   286%     -    9s
H    0     0                       9.0000000   27.00000   200%     -   17s
     0     0   27.00000    0  621    9.00000   27.00000   200%     -   17s
H    0     0                      10.0000000   27.00000   170%     -   18s
     0     0   27.00000    0  585   10.00000   27.00000   170%     -   19s
     0     0   27.00000    0  453   10.00000   27.00000   170%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 13
  Cover: 12
  MIR: 79
  StrongCG: 1
  GUB cover: 2
  Zero half: 33
  RLT: 23
  Relax-and-lift: 1

Explored 1 nodes (39350 simplex iterations) in 50.10 seconds (30.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 7 ... 1

Time limit reached
Best objective 1.000000000000e+01, best bound 2.700000000000e+01, gap 170.0000%

Wrote result file './lp_solutions/grafo7157.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:09:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7157.43.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/grafo7157.43.lp
Reading time = 0.11 seconds
: 53914 rows, 2043 columns, 163237 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 53914 rows, 2043 columns and 163237 nonzeros
Model fingerprint: 0x85b81825
Variable types: 44 continuous, 1999 integer (1999 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 1943 rows and 58 columns
Presolve time: 0.50s
Presolved: 51971 rows, 1985 columns, 157829 nonzeros
Variable types: 0 continuous, 1985 integer (1941 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 26386 rows, 27570 columns, 106659 nonzeros


Root relaxation: objective 2.700000e+01, 3900 iterations, 2.76 seconds (1.57 work units)
Total elapsed time = 8.05s (DegenMoves)

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

     0     0   27.00000    0  397    4.00000   27.00000   575%     -    9s
H    0     0                       7.0000000   27.00000   286%     -    9s
H    0     0                       9.0000000   27.00000   200%     -   18s
     0     0   27.00000    0  621    9.00000   27.00000   200%     -   18s
H    0     0                      10.0000000   27.00000   170%     -   18s
     0     0   27.00000    0  585   10.00000   27.00000   170%     -   20s
     0     0   27.00000    0  555   10.00000   27.00000   170%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 13
  Cover: 12
  MIR: 79
  StrongCG: 1
  GUB cover: 2
  Zero half: 33
  RLT: 23
  Relax-and-lift: 1

Explored 1 nodes (36630 simplex iterations) in 50.13 seconds (27.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 7 ... 1

Time limit reached
Best objective 1.000000000000e+01, best bound 2.700000000000e+01, gap 170.0000%

Wrote result file './lp_solutions/grafo7157.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:12:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7157.43.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/grafo7157.43.lp
Reading time = 0.10 seconds
: 53914 rows, 2043 columns, 163237 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 53914 rows, 2043 columns and 163237 nonzeros
Model fingerprint: 0x85b81825
Variable types: 44 continuous, 1999 integer (1999 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 1943 rows and 58 columns
Presolve time: 0.43s
Presolved: 51971 rows, 1985 columns, 157829 nonzeros
Variable types: 0 continuous, 1985 integer (1941 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 26386 rows, 27570 columns, 106659 nonzeros


Root relaxation: objective 2.700000e+01, 3900 iterations, 2.24 seconds (1.57 work units)
Total elapsed time = 6.84s (DegenMoves)

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

     0     0   27.00000    0  397    4.00000   27.00000   575%     -    8s
H    0     0                       7.0000000   27.00000   286%     -    8s
H    0     0                       9.0000000   27.00000   200%     -   15s
     0     0   27.00000    0  621    9.00000   27.00000   200%     -   15s
H    0     0                      10.0000000   27.00000   170%     -   15s
     0     0   27.00000    0  585   10.00000   27.00000   170%     -   17s
     0     0   27.00000    0  415   10.00000   27.00000   170%     -   45s
H    0     0                      11.0000000   27.00000   145%     -   45s
     0     0   27.00000    0  318   11.00000   27.00000   145%     -   45s
     0     0          -    0        11.00000   27.00000   145%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  MIR: 99
  GUB cover: 10
  Zero half: 14
  RLT: 27

Explored 1 nodes (43540 simplex iterations) in 50.05 seconds (34.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 1

Time limit reached
Best objective 1.100000000000e+01, best bound 2.700000000000e+01, gap 145.4545%

Wrote result file './lp_solutions/grafo7157.43.sol'

