
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:48:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7531.38.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/grafo7531.38.lp
Reading time = 0.09 seconds
: 42661 rows, 1586 columns, 129022 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 42661 rows, 1586 columns and 129022 nonzeros
Model fingerprint: 0x74997f86
Variable types: 37 continuous, 1549 integer (1549 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 6488 rows and 27 columns
Presolve time: 0.37s
Presolved: 36173 rows, 1559 columns, 109825 nonzeros
Variable types: 0 continuous, 1559 integer (1522 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 19967 rows, 17765 columns, 77413 nonzeros


Root relaxation: objective 3.700000e+01, 1551 iterations, 0.61 seconds (0.30 work units)

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

     0     0   37.00000    0  293    6.00000   37.00000   517%     -    2s
H    0     0                       7.0000000   37.00000   429%     -    2s
H    0     0                       9.0000000   37.00000   311%     -    2s
     0     0   37.00000    0  500    9.00000   37.00000   311%     -    5s
H    0     0                      10.0000000   37.00000   270%     -    5s
     0     0   37.00000    0  445   10.00000   37.00000   270%     -    6s
     0     0   37.00000    0  502   10.00000   37.00000   270%     -   16s
     0     0   37.00000    0  497   10.00000   37.00000   270%     -   17s
     0     0   36.75000    0  355   10.00000   36.75000   267%     -   28s
     0     0   36.66667    0  467   10.00000   36.66667   267%     -   30s
H    0     0                      11.0000000   36.66667   233%     -   39s
H    0     0                      12.0000000   36.66667   206%     -   39s
     0     0   36.66667    0  463   12.00000   36.66667   206%     -   39s
     0     0   36.66667    0  429   12.00000   36.66667   206%     -   40s
     0     0   36.66667    0  392   12.00000   36.66667   206%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 1
  MIR: 170
  StrongCG: 1
  GUB cover: 2
  Zero half: 23
  RLT: 66

Explored 1 nodes (50852 simplex iterations) in 50.04 seconds (30.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 12 11 10 ... 1

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo7531.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 04:51:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7531.38.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/grafo7531.38.lp
Reading time = 0.09 seconds
: 42661 rows, 1586 columns, 129022 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 42661 rows, 1586 columns and 129022 nonzeros
Model fingerprint: 0x74997f86
Variable types: 37 continuous, 1549 integer (1549 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 6488 rows and 27 columns
Presolve time: 0.45s
Presolved: 36173 rows, 1559 columns, 109825 nonzeros
Variable types: 0 continuous, 1559 integer (1522 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 19967 rows, 17765 columns, 77413 nonzeros


Root relaxation: objective 3.700000e+01, 1551 iterations, 0.45 seconds (0.30 work units)

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

     0     0   37.00000    0  293    6.00000   37.00000   517%     -    1s
H    0     0                       7.0000000   37.00000   429%     -    2s
H    0     0                       9.0000000   37.00000   311%     -    2s
     0     0   37.00000    0  500    9.00000   37.00000   311%     -    4s
H    0     0                      10.0000000   37.00000   270%     -    4s
     0     0   37.00000    0  445   10.00000   37.00000   270%     -    5s
     0     0   37.00000    0  502   10.00000   37.00000   270%     -   18s
     0     0   37.00000    0  497   10.00000   37.00000   270%     -   18s
     0     0   36.75000    0  355   10.00000   36.75000   267%     -   31s
     0     0   36.66667    0  467   10.00000   36.66667   267%     -   32s
H    0     0                      11.0000000   36.66667   233%     -   42s
H    0     0                      12.0000000   36.66667   206%     -   42s
     0     0   36.66667    0  463   12.00000   36.66667   206%     -   42s
     0     0   36.66667    0  429   12.00000   36.66667   206%     -   43s
     0     0   36.66667    0  514   12.00000   36.66667   206%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 1
  MIR: 170
  StrongCG: 1
  GUB cover: 2
  Zero half: 23
  RLT: 66

Explored 1 nodes (46548 simplex iterations) in 50.05 seconds (27.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 12 11 10 ... 1

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo7531.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 05:53:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7531.38.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/grafo7531.38.lp
Reading time = 0.08 seconds
: 42661 rows, 1586 columns, 129022 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 42661 rows, 1586 columns and 129022 nonzeros
Model fingerprint: 0x74997f86
Variable types: 37 continuous, 1549 integer (1549 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 6488 rows and 27 columns
Presolve time: 0.32s
Presolved: 36173 rows, 1559 columns, 109825 nonzeros
Variable types: 0 continuous, 1559 integer (1522 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 19967 rows, 17765 columns, 77413 nonzeros


Root relaxation: objective 3.700000e+01, 1551 iterations, 0.39 seconds (0.30 work units)

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

     0     0   37.00000    0  293    6.00000   37.00000   517%     -    1s
H    0     0                       7.0000000   37.00000   429%     -    2s
H    0     0                       9.0000000   37.00000   311%     -    2s
     0     0   37.00000    0  500    9.00000   37.00000   311%     -    3s
H    0     0                      10.0000000   37.00000   270%     -    3s
     0     0   37.00000    0  445   10.00000   37.00000   270%     -    4s
     0     0   37.00000    0  502   10.00000   37.00000   270%     -   13s
     0     0   37.00000    0  497   10.00000   37.00000   270%     -   13s
     0     0   36.75000    0  355   10.00000   36.75000   267%     -   23s
     0     0   36.66667    0  467   10.00000   36.66667   267%     -   24s
H    0     0                      11.0000000   36.66667   233%     -   31s
H    0     0                      12.0000000   36.66667   206%     -   31s
     0     0   36.66667    0  463   12.00000   36.66667   206%     -   32s
     0     0   36.66667    0  429   12.00000   36.66667   206%     -   32s
H    0     0                      13.0000000   36.66667   182%     -   40s
H    0     0                      14.0000000   36.66667   162%     -   40s
     0     0   36.66667    0  392   14.00000   36.66667   162%     -   40s
     0     0   36.66667    0  419   14.00000   36.66667   162%     -   41s
     0     0   36.66667    0  450   14.00000   36.66667   162%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 12
  Clique: 1
  MIR: 180
  Zero half: 19
  RLT: 69

Explored 1 nodes (64140 simplex iterations) in 50.04 seconds (38.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 14 13 12 ... 1

Time limit reached
Best objective 1.400000000000e+01, best bound 3.600000000000e+01, gap 157.1429%

Wrote result file './lp_solutions/grafo7531.38.sol'

