
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:32:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2994.41.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/grafo2994.41.lp
Reading time = 0.18 seconds
: 66195 rows, 2196 columns, 200408 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 66195 rows, 2196 columns and 200408 nonzeros
Model fingerprint: 0x432633a8
Variable types: 47 continuous, 2149 integer (2149 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 7627 rows and 0 columns
Presolve time: 0.76s
Presolved: 58568 rows, 2196 columns, 177907 nonzeros
Variable types: 0 continuous, 2196 integer (2149 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2157 rows, 60725 columns, 180103 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18922    4.2939099e+01   0.000000e+00   5.820464e+03      5s
   37066    4.2930162e+01   0.000000e+00   5.081657e+01     10s
   39228    4.3000000e+01   0.000000e+00   0.000000e+00     11s
   39228    4.3000000e+01   0.000000e+00   0.000000e+00     11s
   39228    4.3000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.300000e+01, 39228 iterations, 9.87 seconds (5.94 work units)
Total elapsed time = 22.43s (DegenMoves)
Total elapsed time = 26.81s (DegenMoves)

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

     0     0   43.00000    0  698   10.00000   43.00000   330%     -   29s
H    0     0                      13.0000000   43.00000   231%     -   29s
     0     0          -    0        13.00000   43.00000   231%     -   50s

Cutting planes:
  Gomory: 38
  Cover: 41
  Clique: 3
  MIR: 118
  Zero half: 9
  RLT: 53
  BQP: 2

Explored 1 nodes (67537 simplex iterations) in 50.06 seconds (35.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 1 

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

Wrote result file './lp_solutions/grafo2994.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:48:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2994.41.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/grafo2994.41.lp
Reading time = 0.11 seconds
: 66195 rows, 2196 columns, 200408 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 66195 rows, 2196 columns and 200408 nonzeros
Model fingerprint: 0x432633a8
Variable types: 47 continuous, 2149 integer (2149 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 7627 rows and 0 columns
Presolve time: 0.36s
Presolved: 58568 rows, 2196 columns, 177907 nonzeros
Variable types: 0 continuous, 2196 integer (2149 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2157 rows, 60725 columns, 180103 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27562    4.2932267e+01   0.000000e+00   2.128419e+03      5s
   39228    4.3000000e+01   0.000000e+00   0.000000e+00      7s
   39228    4.3000000e+01   0.000000e+00   0.000000e+00      7s
   39228    4.3000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.300000e+01, 39228 iterations, 6.98 seconds (5.94 work units)
Total elapsed time = 16.91s (DegenMoves)
Total elapsed time = 20.22s (DegenMoves)

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

     0     0   43.00000    0  698   10.00000   43.00000   330%     -   22s
H    0     0                      13.0000000   43.00000   231%     -   22s
     0     0   43.00000    0 1020   13.00000   43.00000   231%     -   39s
     0     0   43.00000    0  957   13.00000   43.00000   231%     -   40s
     0     0          -    0        13.00000   43.00000   231%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 12
  Clique: 1
  MIR: 132
  StrongCG: 1
  Zero half: 80
  RLT: 75

Explored 1 nodes (75270 simplex iterations) in 50.06 seconds (46.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 1 

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

Wrote result file './lp_solutions/grafo2994.41.sol'

