
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:18:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3621.40.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/grafo3621.40.lp
Reading time = 0.17 seconds
: 89448 rows, 2006 columns, 269916 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 89448 rows, 2006 columns and 269916 nonzeros
Model fingerprint: 0x16caaf53
Variable types: 43 continuous, 1963 integer (1963 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 3.0000000
Presolve removed 25610 rows and 26 columns
Presolve time: 1.00s
Presolved: 63838 rows, 1980 columns, 193423 nonzeros
Variable types: 0 continuous, 1980 integer (1937 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1980 rows, 65818 columns, 195403 nonzeros


Root relaxation: objective 4.400000e+01, 2843 iterations, 1.32 seconds (1.11 work units)
Total elapsed time = 11.69s (DegenMoves)

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

     0     0   44.00000    0  550    7.00000   44.00000   529%     -   13s
H    0     0                       9.0000000   44.00000   389%     -   13s
     0     0   44.00000    0  643    9.00000   44.00000   389%     -   30s
     0     0   44.00000    0  641    9.00000   44.00000   389%     -   33s
     0     0          -    0         9.00000   44.00000   389%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 34
  Cover: 30
  Clique: 10
  MIR: 107
  GUB cover: 1
  Zero half: 34
  RLT: 77
  BQP: 1

Explored 1 nodes (25867 simplex iterations) in 50.13 seconds (31.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 7 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.400000000000e+01, gap 388.8889%

Wrote result file './lp_solutions/grafo3621.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:09:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3621.40.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/grafo3621.40.lp
Reading time = 0.14 seconds
: 89448 rows, 2006 columns, 269916 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 89448 rows, 2006 columns and 269916 nonzeros
Model fingerprint: 0x16caaf53
Variable types: 43 continuous, 1963 integer (1963 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 3.0000000
Presolve removed 25610 rows and 26 columns
Presolve time: 0.64s
Presolved: 63838 rows, 1980 columns, 193423 nonzeros
Variable types: 0 continuous, 1980 integer (1937 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1980 rows, 65818 columns, 195403 nonzeros


Root relaxation: objective 4.400000e+01, 2843 iterations, 0.90 seconds (1.11 work units)
Total elapsed time = 8.85s (DegenMoves)

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

     0     0   44.00000    0  550    7.00000   44.00000   529%     -    9s
H    0     0                       9.0000000   44.00000   389%     -    9s
     0     0   44.00000    0  643    9.00000   44.00000   389%     -   21s
     0     0   44.00000    0  641    9.00000   44.00000   389%     -   23s
     0     0   44.00000    0  648    9.00000   44.00000   389%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 34
  Cover: 30
  Clique: 10
  MIR: 107
  GUB cover: 1
  Zero half: 34
  RLT: 77
  BQP: 1

Explored 1 nodes (40499 simplex iterations) in 50.09 seconds (47.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 7 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.400000000000e+01, gap 388.8889%

Wrote result file './lp_solutions/grafo3621.40.sol'

