
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:19:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10037.39.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/grafo10037.39.lp
Reading time = 0.26 seconds
: 75367 rows, 2085 columns, 227872 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 75367 rows, 2085 columns and 227872 nonzeros
Model fingerprint: 0xb5c4aef1
Variable types: 44 continuous, 2041 integer (2041 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 18027 rows and 33 columns
Presolve time: 1.00s
Presolved: 57340 rows, 2052 columns, 174274 nonzeros
Variable types: 0 continuous, 2052 integer (2008 binary)
Root relaxation presolved: 2049 rows, 59389 columns, 176326 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12110    4.2760148e+01   0.000000e+00   1.085969e+04      5s
   26339    4.2744514e+01   0.000000e+00   8.984450e+03     10s
   30551    4.3000000e+01   0.000000e+00   0.000000e+00     12s
   30551    4.3000000e+01   0.000000e+00   0.000000e+00     12s
   30551    4.3000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.300000e+01, 30551 iterations, 10.32 seconds (4.16 work units)
Total elapsed time = 24.84s (DegenMoves)
Total elapsed time = 26.45s (DegenMoves)
Total elapsed time = 36.97s (DegenMoves)
Total elapsed time = 41.52s (DegenMoves)

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

     0     0   43.00000    0  577          -   43.00000      -     -   44s
H    0     0                      10.0000000   43.00000   330%     -   50s

Cutting planes:
  Cover: 29
  Clique: 35
  MIR: 83

Explored 1 nodes (55187 simplex iterations) in 50.14 seconds (29.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo10037.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:35:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10037.39.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/grafo10037.39.lp
Reading time = 0.12 seconds
: 75367 rows, 2085 columns, 227872 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 75367 rows, 2085 columns and 227872 nonzeros
Model fingerprint: 0xb5c4aef1
Variable types: 44 continuous, 2041 integer (2041 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 18027 rows and 33 columns
Presolve time: 0.51s
Presolved: 57340 rows, 2052 columns, 174274 nonzeros
Variable types: 0 continuous, 2052 integer (2008 binary)
Root relaxation presolved: 2049 rows, 59389 columns, 176326 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27734    4.2744318e+01   0.000000e+00   6.679220e+01      5s
   30551    4.3000000e+01   0.000000e+00   0.000000e+00      6s
   30551    4.3000000e+01   0.000000e+00   0.000000e+00      6s
   30551    4.3000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.300000e+01, 30551 iterations, 4.93 seconds (4.16 work units)
Total elapsed time = 13.40s (DegenMoves)
Total elapsed time = 21.10s (DegenMoves)

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

     0     0   43.00000    0  577          -   43.00000      -     -   24s
H    0     0                      10.0000000   43.00000   330%     -   27s
     0     0   43.00000    0  715   10.00000   43.00000   330%     -   33s
H    0     0                      13.0000000   43.00000   231%     -   33s
     0     0   43.00000    0  702   13.00000   43.00000   231%     -   34s
     0     0   43.00000    0  626   13.00000   43.00000   231%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 31
  Cover: 4
  Clique: 28
  MIR: 55
  Zero half: 24
  RLT: 46
  BQP: 3

Explored 1 nodes (70927 simplex iterations) in 50.07 seconds (48.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.300000000000e+01, gap 230.7692%

Wrote result file './lp_solutions/grafo10037.39.sol'

