
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:57:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3392.43.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/grafo3392.43.lp
Reading time = 0.13 seconds
: 65467 rows, 2127 columns, 198001 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 65467 rows, 2127 columns and 198001 nonzeros
Model fingerprint: 0x785e517c
Variable types: 44 continuous, 2083 integer (2083 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 1.0000000
Presolve removed 8493 rows and 33 columns
Presolve time: 0.74s
Presolved: 56974 rows, 2094 columns, 173011 nonzeros
Variable types: 0 continuous, 2094 integer (2050 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2088 rows, 59062 columns, 175105 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20011    3.5931219e+01   0.000000e+00   1.764565e+04      5s
   30691    3.6000000e+01   0.000000e+00   0.000000e+00      8s
   30691    3.6000000e+01   0.000000e+00   0.000000e+00      8s
   30691    3.6000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 3.600000e+01, 30691 iterations, 7.08 seconds (4.67 work units)
Total elapsed time = 17.18s (DegenMoves)
Total elapsed time = 32.31s (DegenMoves)
Total elapsed time = 36.03s (DegenMoves)

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

     0     0   36.00000    0  455    8.00000   36.00000   350%     -   39s
H    0     0                      10.0000000   36.00000   260%     -   39s
     0     0          -    0        10.00000   36.00000   260%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 22
  Clique: 1
  MIR: 121
  StrongCG: 2
  GUB cover: 6
  Zero half: 53
  RLT: 33

Explored 1 nodes (67400 simplex iterations) in 50.07 seconds (41.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.600000000000e+01, gap 260.0000%

Wrote result file './lp_solutions/grafo3392.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:49:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3392.43.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/grafo3392.43.lp
Reading time = 0.10 seconds
: 65467 rows, 2127 columns, 198001 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 65467 rows, 2127 columns and 198001 nonzeros
Model fingerprint: 0x785e517c
Variable types: 44 continuous, 2083 integer (2083 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 1.0000000
Presolve removed 8493 rows and 33 columns
Presolve time: 0.43s
Presolved: 56974 rows, 2094 columns, 173011 nonzeros
Variable types: 0 continuous, 2094 integer (2050 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2088 rows, 59062 columns, 175105 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27520    3.5929047e+01   0.000000e+00   5.534996e+02      5s
   30691    3.6000000e+01   0.000000e+00   0.000000e+00      6s
   30691    3.6000000e+01   0.000000e+00   0.000000e+00      6s
   30691    3.6000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.600000e+01, 30691 iterations, 5.13 seconds (4.67 work units)
Total elapsed time = 12.92s (DegenMoves)
Total elapsed time = 25.02s (DegenMoves)

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

     0     0   36.00000    0  455    8.00000   36.00000   350%     -   30s
H    0     0                      10.0000000   36.00000   260%     -   30s
H    0     0                      11.0000000   36.00000   227%     -   41s
     0     0   36.00000    0  716   11.00000   36.00000   227%     -   41s
     0     0   36.00000    0  698   11.00000   36.00000   227%     -   42s
     0     0   36.00000    0  712   11.00000   36.00000   227%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 31
  Cover: 14
  Clique: 2
  MIR: 128
  GUB cover: 2
  Zero half: 32
  RLT: 37
  BQP: 1

Explored 1 nodes (74342 simplex iterations) in 50.05 seconds (50.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 8 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.600000000000e+01, gap 227.2727%

Wrote result file './lp_solutions/grafo3392.43.sol'

