
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 10:04:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9930.38.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/grafo9930.38.lp
Reading time = 0.13 seconds
: 71116 rows, 1984 columns, 215037 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 71116 rows, 1984 columns and 215037 nonzeros
Model fingerprint: 0xed83c412
Variable types: 45 continuous, 1939 integer (1939 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 15055 rows and 32 columns
Presolve time: 0.55s
Presolved: 56061 rows, 1952 columns, 170251 nonzeros
Variable types: 0 continuous, 1952 integer (1907 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1952 rows, 58013 columns, 172203 nonzeros


Root relaxation: objective 3.900000e+01, 1979 iterations, 0.40 seconds (0.36 work units)
Total elapsed time = 5.59s (DegenMoves)

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

     0     0   39.00000    0  523    9.00000   39.00000   333%     -    7s
H    0     0                      11.0000000   39.00000   255%     -    7s
H    0     0                      12.0000000   39.00000   225%     -    9s
     0     0   39.00000    0  756   12.00000   39.00000   225%     -   15s
H    0     0                      13.0000000   39.00000   200%     -   16s
     0     0   39.00000    0  726   13.00000   39.00000   200%     -   16s
H    0     0                      15.0000000   39.00000   160%     -   44s
H    0     0                      16.0000000   39.00000   144%     -   44s
     0     0   38.00000    0  514   16.00000   38.00000   138%     -   45s
H    0     0                      18.0000000   38.00000   111%     -   46s
     0     0   38.00000    0  452   18.00000   38.00000   111%     -   46s
     0     0          -    0        18.00000   38.00000   111%     -   50s

Cutting planes:
  Cover: 22
  Clique: 16
  MIR: 105
  StrongCG: 1
  GUB cover: 3
  Zero half: 35
  RLT: 50
  Relax-and-lift: 1
  PSD: 1

Explored 1 nodes (39814 simplex iterations) in 50.09 seconds (38.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 18 16 15 ... 9

Time limit reached
Best objective 1.800000000000e+01, best bound 3.800000000000e+01, gap 111.1111%

Wrote result file './lp_solutions/grafo9930.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:00:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9930.38.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/grafo9930.38.lp
Reading time = 0.11 seconds
: 71116 rows, 1984 columns, 215037 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 71116 rows, 1984 columns and 215037 nonzeros
Model fingerprint: 0xed83c412
Variable types: 45 continuous, 1939 integer (1939 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 15055 rows and 32 columns
Presolve time: 0.48s
Presolved: 56061 rows, 1952 columns, 170251 nonzeros
Variable types: 0 continuous, 1952 integer (1907 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1952 rows, 58013 columns, 172203 nonzeros


Root relaxation: objective 3.900000e+01, 1979 iterations, 0.35 seconds (0.36 work units)
Total elapsed time = 5.47s (DegenMoves)

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

     0     0   39.00000    0  523    9.00000   39.00000   333%     -    6s
H    0     0                      11.0000000   39.00000   255%     -    6s
H    0     0                      12.0000000   39.00000   225%     -    8s
     0     0   39.00000    0  756   12.00000   39.00000   225%     -   13s
H    0     0                      13.0000000   39.00000   200%     -   14s
     0     0   39.00000    0  726   13.00000   39.00000   200%     -   14s
H    0     0                      15.0000000   39.00000   160%     -   36s
H    0     0                      16.0000000   39.00000   144%     -   36s
     0     0   38.00000    0  514   16.00000   38.00000   138%     -   37s
H    0     0                      18.0000000   38.00000   111%     -   38s
     0     0   38.00000    0  452   18.00000   38.00000   111%     -   38s
     0     0   38.00000    0  581   18.00000   38.00000   111%     -   50s

Cutting planes:
  Cover: 22
  Clique: 16
  MIR: 105
  StrongCG: 1
  GUB cover: 3
  Zero half: 35
  RLT: 50
  Relax-and-lift: 1
  PSD: 1

Explored 1 nodes (52325 simplex iterations) in 50.07 seconds (49.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 18 16 15 ... 9

Time limit reached
Best objective 1.800000000000e+01, best bound 3.800000000000e+01, gap 111.1111%

Wrote result file './lp_solutions/grafo9930.38.sol'

