
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:19:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3624.44.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/grafo3624.44.lp
Reading time = 0.15 seconds
: 78965 rows, 2388 columns, 238798 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 78965 rows, 2388 columns and 238798 nonzeros
Model fingerprint: 0xc2766911
Variable types: 48 continuous, 2340 integer (2340 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 10826 rows and 1 columns
Presolve time: 0.75s
Presolved: 68139 rows, 2387 columns, 206719 nonzeros
Variable types: 0 continuous, 2387 integer (2339 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2348 rows, 70487 columns, 209106 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14993    4.6947511e+01   0.000000e+00   1.055527e+05      5s
   33143    4.6923520e+01   0.000000e+00   1.214175e+04     10s
   49633    4.7000000e+01   0.000000e+00   0.000000e+00     15s
   49633    4.7000000e+01   0.000000e+00   0.000000e+00     15s
   49633    4.7000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.700000e+01, 49633 iterations, 13.74 seconds (7.45 work units)
Total elapsed time = 28.89s (DegenMoves)
Total elapsed time = 31.87s (DegenMoves)
Total elapsed time = 38.46s (DegenMoves)

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

     0     0   47.00000    0  699    7.00000   47.00000   571%     -   41s
H    0     0                       8.0000000   47.00000   488%     -   41s
H    0     0                       9.0000000   47.00000   422%     -   48s
     0     0          -    0         9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 32
  Cover: 18
  Clique: 1
  MIR: 156
  Zero half: 63
  RLT: 42

Explored 1 nodes (72275 simplex iterations) in 50.10 seconds (36.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 7 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo3624.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:13:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3624.44.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/grafo3624.44.lp
Reading time = 0.12 seconds
: 78965 rows, 2388 columns, 238798 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 78965 rows, 2388 columns and 238798 nonzeros
Model fingerprint: 0xc2766911
Variable types: 48 continuous, 2340 integer (2340 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 10826 rows and 1 columns
Presolve time: 0.43s
Presolved: 68139 rows, 2387 columns, 206719 nonzeros
Variable types: 0 continuous, 2387 integer (2339 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2348 rows, 70487 columns, 209106 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25223    4.6928718e+01   0.000000e+00   9.223990e+03      5s
   48983    4.6919906e+01   0.000000e+00   2.371472e+00     10s
   49633    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   49633    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   49633    4.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.700000e+01, 49633 iterations, 9.68 seconds (7.45 work units)
Total elapsed time = 21.97s (DegenMoves)
Total elapsed time = 29.07s (DegenMoves)
Total elapsed time = 30.11s (DegenMoves)

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

     0     0   47.00000    0  699    7.00000   47.00000   571%     -   30s
H    0     0                       8.0000000   47.00000   488%     -   30s
H    0     0                       9.0000000   47.00000   422%     -   35s
     0     0          -    0         9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 32
  Cover: 18
  Clique: 1
  MIR: 156
  Zero half: 63
  RLT: 42

Explored 1 nodes (81635 simplex iterations) in 50.06 seconds (48.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 7 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo3624.44.sol'

