
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:05:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3470.41.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/grafo3470.41.lp
Reading time = 0.20 seconds
: 95287 rows, 2365 columns, 287945 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 95287 rows, 2365 columns and 287945 nonzeros
Model fingerprint: 0xc38a0782
Variable types: 49 continuous, 2316 integer (2316 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 21362 rows and 33 columns
Presolve time: 1.24s
Presolved: 73925 rows, 2332 columns, 224362 nonzeros
Variable types: 0 continuous, 2332 integer (2283 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2329 rows, 76254 columns, 226694 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14963    4.7924637e+01   0.000000e+00   6.522670e+04      5s
   31199    4.7901560e+01   0.000000e+00   2.176635e+04     10s
   47527    4.7895082e+01   0.000000e+00   1.140872e+04     15s
   63378    4.7893033e+01   0.000000e+00   4.516862e+01     20s
   67256    4.8000000e+01   0.000000e+00   0.000000e+00     21s
   67256    4.8000000e+01   0.000000e+00   0.000000e+00     21s
   67256    4.8000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 4.800000e+01, 67256 iterations, 19.94 seconds (13.29 work units)
Total elapsed time = 40.93s (DegenMoves)
Total elapsed time = 45.43s (DegenMoves)

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

     0     0   48.00000    0  657    7.00000   48.00000   586%     -   46s
H    0     0                      11.0000000   48.00000   336%     -   46s

Cutting planes:
  Cover: 35
  Clique: 15
  MIR: 189
  StrongCG: 1
  GUB cover: 3

Explored 1 nodes (86238 simplex iterations) in 50.13 seconds (37.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.800000000000e+01, gap 336.3636%

Wrote result file './lp_solutions/grafo3470.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:53:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3470.41.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/grafo3470.41.lp
Reading time = 0.15 seconds
: 95287 rows, 2365 columns, 287945 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 95287 rows, 2365 columns and 287945 nonzeros
Model fingerprint: 0xc38a0782
Variable types: 49 continuous, 2316 integer (2316 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 21362 rows and 33 columns
Presolve time: 0.65s
Presolved: 73925 rows, 2332 columns, 224362 nonzeros
Variable types: 0 continuous, 2332 integer (2283 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2329 rows, 76254 columns, 226694 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21408    4.7912200e+01   0.000000e+00   8.386610e+04      5s
   42442    4.7896510e+01   0.000000e+00   4.267588e+03     10s
   63741    4.7893021e+01   0.000000e+00   5.697042e+01     15s
   67256    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   67256    4.8000000e+01   0.000000e+00   0.000000e+00     16s
   67256    4.8000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 4.800000e+01, 67256 iterations, 15.02 seconds (13.29 work units)
Total elapsed time = 32.02s (DegenMoves)
Total elapsed time = 35.28s (DegenMoves)

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

     0     0   48.00000    0  657    7.00000   48.00000   586%     -   35s
H    0     0                      11.0000000   48.00000   336%     -   36s
     0     0          -    0        11.00000   48.00000   336%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 34
  Clique: 15
  MIR: 156
  StrongCG: 1
  GUB cover: 2
  Zero half: 43
  RLT: 57
  BQP: 3

Explored 1 nodes (92999 simplex iterations) in 50.07 seconds (47.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.800000000000e+01, gap 336.3636%

Wrote result file './lp_solutions/grafo3470.41.sol'

