
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 09:03:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5857.38.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/grafo5857.38.lp
Reading time = 0.14 seconds
: 56975 rows, 1917 columns, 172478 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 56975 rows, 1917 columns and 172478 nonzeros
Model fingerprint: 0x5e0d4aca
Variable types: 44 continuous, 1873 integer (1873 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 -0.0000000
Presolve removed 8269 rows and 42 columns
Presolve time: 0.65s
Presolved: 48706 rows, 1875 columns, 148156 nonzeros
Variable types: 0 continuous, 1875 integer (1831 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 27026 rows, 23555 columns, 104796 nonzeros


Root relaxation: objective 3.700000e+01, 2420 iterations, 1.92 seconds (0.85 work units)
Total elapsed time = 5.49s (DegenMoves)

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

     0     0   37.00000    0  321    6.00000   37.00000   517%     -    6s
H    0     0                      10.0000000   37.00000   270%     -    6s
     0     0   37.00000    0  677   10.00000   37.00000   270%     -   15s
H    0     0                      11.0000000   37.00000   236%     -   16s
     0     0   37.00000    0  660   11.00000   37.00000   236%     -   17s
     0     0   37.00000    0  819   11.00000   37.00000   236%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 31
  Cover: 10
  MIR: 98
  Zero half: 20
  RLT: 37

Explored 1 nodes (33788 simplex iterations) in 50.07 seconds (30.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 6 -0 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.700000000000e+01, gap 236.3636%

Wrote result file './lp_solutions/grafo5857.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:41:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5857.38.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/grafo5857.38.lp
Reading time = 0.10 seconds
: 56975 rows, 1917 columns, 172478 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 56975 rows, 1917 columns and 172478 nonzeros
Model fingerprint: 0x5e0d4aca
Variable types: 44 continuous, 1873 integer (1873 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 -0.0000000
Presolve removed 8269 rows and 42 columns
Presolve time: 0.41s
Presolved: 48706 rows, 1875 columns, 148156 nonzeros
Variable types: 0 continuous, 1875 integer (1831 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 27026 rows, 23555 columns, 104796 nonzeros


Root relaxation: objective 3.700000e+01, 2420 iterations, 0.98 seconds (0.85 work units)

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

     0     0   37.00000    0  321    6.00000   37.00000   517%     -    4s
H    0     0                      10.0000000   37.00000   270%     -    4s
     0     0   37.00000    0  677   10.00000   37.00000   270%     -   11s
H    0     0                      11.0000000   37.00000   236%     -   11s
     0     0   37.00000    0  660   11.00000   37.00000   236%     -   12s
     0     0   37.00000    0  643   11.00000   37.00000   236%     -   45s
H    0     0                      12.0000000   37.00000   208%     -   45s
     0     0   37.00000    0  637   12.00000   37.00000   208%     -   48s

Cutting planes:
  Gomory: 3
  Lift-and-project: 2
  Cover: 16
  MIR: 144
  StrongCG: 1
  GUB cover: 2
  Zero half: 13
  RLT: 29

Explored 1 nodes (41195 simplex iterations) in 50.20 seconds (39.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... -0

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo5857.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:36:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5857.38.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/grafo5857.38.lp
Reading time = 0.09 seconds
: 56975 rows, 1917 columns, 172478 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 56975 rows, 1917 columns and 172478 nonzeros
Model fingerprint: 0x5e0d4aca
Variable types: 44 continuous, 1873 integer (1873 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 -0.0000000
Presolve removed 8269 rows and 42 columns
Presolve time: 0.37s
Presolved: 48706 rows, 1875 columns, 148156 nonzeros
Variable types: 0 continuous, 1875 integer (1831 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 27026 rows, 23555 columns, 104796 nonzeros


Root relaxation: objective 3.700000e+01, 2420 iterations, 0.88 seconds (0.85 work units)

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

     0     0   37.00000    0  321    6.00000   37.00000   517%     -    3s
H    0     0                      10.0000000   37.00000   270%     -    3s
     0     0   37.00000    0  677   10.00000   37.00000   270%     -   10s
H    0     0                      11.0000000   37.00000   236%     -   10s
     0     0   37.00000    0  660   11.00000   37.00000   236%     -   11s
     0     0   37.00000    0  643   11.00000   37.00000   236%     -   39s
H    0     0                      12.0000000   37.00000   208%     -   39s
     0     0   37.00000    0  637   12.00000   37.00000   208%     -   42s
     0     0          -    0        12.00000   37.00000   208%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 2
  Cover: 15
  MIR: 142
  StrongCG: 1
  GUB cover: 3
  Zero half: 57
  RLT: 62

Explored 1 nodes (47178 simplex iterations) in 50.05 seconds (45.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... -0

Time limit reached
Best objective 1.200000000000e+01, best bound 3.700000000000e+01, gap 208.3333%

Wrote result file './lp_solutions/grafo5857.38.sol'

