
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:12:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5204.36.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/grafo5204.36.lp
Reading time = 0.15 seconds
: 75066 rows, 1904 columns, 226766 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 75066 rows, 1904 columns and 226766 nonzeros
Model fingerprint: 0x9ca67afa
Variable types: 44 continuous, 1860 integer (1860 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 20294 rows and 27 columns
Presolve time: 0.79s
Presolved: 54772 rows, 1877 columns, 166240 nonzeros
Variable types: 0 continuous, 1877 integer (1833 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1877 rows, 56649 columns, 168117 nonzeros


Root relaxation: objective 5.200000e+01, 1846 iterations, 0.57 seconds (0.34 work units)
Total elapsed time = 6.07s (DegenMoves)

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

     0     0   52.00000    0  569    8.00000   52.00000   550%     -    6s
H    0     0                      10.0000000   52.00000   420%     -    6s
     0     0   52.00000    0  850   10.00000   52.00000   420%     -   23s
     0     0   52.00000    0  809   10.00000   52.00000   420%     -   26s
     0     0   52.00000    0  900   10.00000   52.00000   420%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 17
  Clique: 17
  MIR: 183
  StrongCG: 3
  GUB cover: 2
  Zero half: 92
  RLT: 92
  BQP: 2

Explored 1 nodes (29088 simplex iterations) in 50.10 seconds (30.78 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.200000000000e+01, gap 420.0000%

Wrote result file './lp_solutions/grafo5204.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:25:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5204.36.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/grafo5204.36.lp
Reading time = 0.12 seconds
: 75066 rows, 1904 columns, 226766 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 75066 rows, 1904 columns and 226766 nonzeros
Model fingerprint: 0x9ca67afa
Variable types: 44 continuous, 1860 integer (1860 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 20294 rows and 27 columns
Presolve time: 0.54s
Presolved: 54772 rows, 1877 columns, 166240 nonzeros
Variable types: 0 continuous, 1877 integer (1833 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1877 rows, 56649 columns, 168117 nonzeros


Root relaxation: objective 5.200000e+01, 1846 iterations, 0.35 seconds (0.34 work units)

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

     0     0   52.00000    0  569    8.00000   52.00000   550%     -    4s
H    0     0                      10.0000000   52.00000   420%     -    4s
     0     0   52.00000    0  850   10.00000   52.00000   420%     -   16s
     0     0   52.00000    0  809   10.00000   52.00000   420%     -   19s
H    0     0                      12.0000000   52.00000   333%     -   44s
     0     0   52.00000    0  900   12.00000   52.00000   333%     -   44s
     0     0   52.00000    0  873   12.00000   52.00000   333%     -   47s
     0     0          -    0        12.00000   52.00000   333%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 4
  Clique: 9
  MIR: 162
  StrongCG: 1
  GUB cover: 1
  Zero half: 73
  RLT: 86
  BQP: 1

Explored 1 nodes (37654 simplex iterations) in 50.11 seconds (41.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 8 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.200000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo5204.36.sol'

