
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:59:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7268.38.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/grafo7268.38.lp
Reading time = 0.09 seconds
: 50019 rows, 1717 columns, 151323 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 50019 rows, 1717 columns and 151323 nonzeros
Model fingerprint: 0x5d1485d6
Variable types: 39 continuous, 1678 integer (1678 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 8895 rows and 21 columns
Presolve time: 0.38s
Presolved: 41124 rows, 1696 columns, 124987 nonzeros
Variable types: 0 continuous, 1696 integer (1657 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 23549 rows, 19271 columns, 89837 nonzeros


Root relaxation: objective 3.800000e+01, 2642 iterations, 1.16 seconds (0.98 work units)

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

     0     0   38.00000    0  404   10.00000   38.00000   280%     -    4s
H    0     0                      12.0000000   38.00000   217%     -    5s
     0     0   38.00000    0  720   12.00000   38.00000   217%     -   11s
     0     0   38.00000    0  668   12.00000   38.00000   217%     -   12s
H    0     0                      13.0000000   38.00000   192%     -   30s
     0     0   37.00000    0  321   13.00000   37.00000   185%     -   30s
     0     0   37.00000    0  312   13.00000   37.00000   185%     -   30s
H    0     0                      14.0000000   37.00000   164%     -   41s
     0     0   37.00000    0  278   14.00000   37.00000   164%     -   41s
     0     0   37.00000    0  393   14.00000   37.00000   164%     -   41s
     0     0   37.00000    0  409   14.00000   37.00000   164%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 28
  Clique: 2
  MIR: 133
  Zero half: 40
  RLT: 52

Explored 1 nodes (62783 simplex iterations) in 50.08 seconds (42.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 10 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.700000000000e+01, gap 164.2857%

Wrote result file './lp_solutions/grafo7268.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:54:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7268.38.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/grafo7268.38.lp
Reading time = 0.08 seconds
: 50019 rows, 1717 columns, 151323 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 50019 rows, 1717 columns and 151323 nonzeros
Model fingerprint: 0x5d1485d6
Variable types: 39 continuous, 1678 integer (1678 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 8895 rows and 21 columns
Presolve time: 0.33s
Presolved: 41124 rows, 1696 columns, 124987 nonzeros
Variable types: 0 continuous, 1696 integer (1657 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 23549 rows, 19271 columns, 89837 nonzeros


Root relaxation: objective 3.800000e+01, 2642 iterations, 0.99 seconds (0.98 work units)

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

     0     0   38.00000    0  404   10.00000   38.00000   280%     -    4s
H    0     0                      12.0000000   38.00000   217%     -    4s
     0     0   38.00000    0  720   12.00000   38.00000   217%     -    9s
     0     0   38.00000    0  668   12.00000   38.00000   217%     -   10s
H    0     0                      13.0000000   38.00000   192%     -   26s
     0     0   37.00000    0  321   13.00000   37.00000   185%     -   26s
     0     0   37.00000    0  312   13.00000   37.00000   185%     -   26s
H    0     0                      14.0000000   37.00000   164%     -   35s
     0     0   37.00000    0  278   14.00000   37.00000   164%     -   35s
     0     0   37.00000    0  393   14.00000   37.00000   164%     -   35s
     0     0   37.00000    0  374   14.00000   37.00000   164%     -   43s
     0     0   37.00000    0  321   14.00000   37.00000   164%     -   43s
H    0     0                      15.0000000   37.00000   147%     -   47s
     0     0   37.00000    0  380   15.00000   37.00000   147%     -   47s
     0     0   37.00000    0  304   15.00000   37.00000   147%     -   47s
     0     0   37.00000    0  424   15.00000   37.00000   147%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 3
  Cover: 27
  Clique: 5
  MIR: 128
  StrongCG: 1
  Inf proof: 1
  Zero half: 48
  RLT: 51
  BQP: 1

Explored 1 nodes (75253 simplex iterations) in 50.04 seconds (49.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 10

Time limit reached
Best objective 1.500000000000e+01, best bound 3.700000000000e+01, gap 146.6667%

Wrote result file './lp_solutions/grafo7268.38.sol'

