
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:51:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo227.39.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/grafo227.39.lp
Reading time = 0.15 seconds
: 68476 rows, 1896 columns, 206916 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 68476 rows, 1896 columns and 206916 nonzeros
Model fingerprint: 0x4ad5e7de
Variable types: 42 continuous, 1854 integer (1854 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 2.0000000
Presolve removed 15660 rows and 20 columns
Presolve time: 0.84s
Presolved: 52816 rows, 1876 columns, 160266 nonzeros
Variable types: 0 continuous, 1876 integer (1834 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1873 rows, 54689 columns, 162142 nonzeros


Root relaxation: objective 4.200000e+01, 3086 iterations, 1.39 seconds (1.12 work units)
Total elapsed time = 11.05s (DegenMoves)
Total elapsed time = 15.87s (DegenMoves)

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

     0     0   42.00000    0  678   11.00000   42.00000   282%     -   16s
     0     0   42.00000    0  728   11.00000   42.00000   282%     -   30s
     0     0   42.00000    0  686   11.00000   42.00000   282%     -   31s
     0     0   42.00000    0  762   11.00000   42.00000   282%     -   50s

Cutting planes:
  Gomory: 8
  Lift-and-project: 26
  Cover: 7
  MIR: 96
  GUB cover: 1
  Zero half: 82
  RLT: 71

Explored 1 nodes (31934 simplex iterations) in 50.08 seconds (32.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.200000000000e+01, gap 281.8182%

Wrote result file './lp_solutions/grafo227.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:07:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo227.39.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/grafo227.39.lp
Reading time = 0.11 seconds
: 68476 rows, 1896 columns, 206916 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 68476 rows, 1896 columns and 206916 nonzeros
Model fingerprint: 0x4ad5e7de
Variable types: 42 continuous, 1854 integer (1854 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 2.0000000
Presolve removed 15660 rows and 20 columns
Presolve time: 0.46s
Presolved: 52816 rows, 1876 columns, 160266 nonzeros
Variable types: 0 continuous, 1876 integer (1834 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1873 rows, 54689 columns, 162142 nonzeros


Root relaxation: objective 4.200000e+01, 3086 iterations, 0.90 seconds (1.12 work units)
Total elapsed time = 8.27s (DegenMoves)
Total elapsed time = 10.95s (DegenMoves)

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

     0     0   42.00000    0  678   11.00000   42.00000   282%     -   12s
     0     0   42.00000    0  728   11.00000   42.00000   282%     -   21s
     0     0   42.00000    0  686   11.00000   42.00000   282%     -   22s
     0     0   42.00000    0  392   11.00000   42.00000   282%     -   45s
     0     0   42.00000    0  443   11.00000   42.00000   282%     -   47s
     0     0          -    0        11.00000   42.00000   282%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 27
  Clique: 1
  MIR: 109
  GUB cover: 2
  Zero half: 72
  RLT: 64

Explored 1 nodes (48299 simplex iterations) in 50.05 seconds (49.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.200000000000e+01, gap 281.8182%

Wrote result file './lp_solutions/grafo227.39.sol'

