
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:31:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5323.44.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/grafo5323.44.lp
Reading time = 0.17 seconds
: 75821 rows, 2301 columns, 229275 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 75821 rows, 2301 columns and 229275 nonzeros
Model fingerprint: 0x69470119
Variable types: 46 continuous, 2255 integer (2255 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 11746 rows and 28 columns
Presolve time: 0.77s
Presolved: 64075 rows, 2273 columns, 194464 nonzeros
Variable types: 0 continuous, 2273 integer (2227 binary)
Root relaxation presolved: 2270 rows, 66345 columns, 196737 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18863    4.1965176e+01   0.000000e+00   1.792278e+04      5s
   36103    4.1962199e+01   0.000000e+00   4.357496e+00     10s
   36696    4.2000000e+01   0.000000e+00   0.000000e+00     10s
   36696    4.2000000e+01   0.000000e+00   0.000000e+00     10s
   36696    4.2000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.200000e+01, 36696 iterations, 9.34 seconds (5.51 work units)
Total elapsed time = 19.73s (DegenMoves)
Total elapsed time = 22.28s (DegenMoves)

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

     0     0   42.00000    0  463          -   42.00000      -     -   23s
H    0     0                      11.0000000   42.00000   282%     -   27s
H    0     0                      14.0000000   42.00000   200%     -   27s
H    0     0                      16.0000000   42.00000   162%     -   44s
     0     0   42.00000    0  837   16.00000   42.00000   162%     -   45s
     0     0   42.00000    0  767   16.00000   42.00000   162%     -   47s

Cutting planes:
  Gomory: 2
  Cover: 9
  Clique: 5
  MIR: 107
  GUB cover: 1
  Zero half: 66
  RLT: 24

Explored 1 nodes (58674 simplex iterations) in 50.22 seconds (30.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 16 14 11 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.200000000000e+01, gap 162.5000%

Wrote result file './lp_solutions/grafo5323.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:16:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5323.44.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/grafo5323.44.lp
Reading time = 0.13 seconds
: 75821 rows, 2301 columns, 229275 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 75821 rows, 2301 columns and 229275 nonzeros
Model fingerprint: 0x69470119
Variable types: 46 continuous, 2255 integer (2255 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 11746 rows and 28 columns
Presolve time: 0.50s
Presolved: 64075 rows, 2273 columns, 194464 nonzeros
Variable types: 0 continuous, 2273 integer (2227 binary)
Root relaxation presolved: 2270 rows, 66345 columns, 196737 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27193    4.1962379e+01   0.000000e+00   1.473878e+03      5s
   36696    4.2000000e+01   0.000000e+00   0.000000e+00      7s
   36696    4.2000000e+01   0.000000e+00   0.000000e+00      7s
   36696    4.2000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.200000e+01, 36696 iterations, 6.33 seconds (5.51 work units)
Total elapsed time = 14.41s (DegenMoves)
Total elapsed time = 16.24s (DegenMoves)

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

     0     0   42.00000    0  463          -   42.00000      -     -   16s
H    0     0                      11.0000000   42.00000   282%     -   19s
H    0     0                      14.0000000   42.00000   200%     -   19s
H    0     0                      16.0000000   42.00000   162%     -   31s
     0     0   42.00000    0  837   16.00000   42.00000   162%     -   32s
     0     0   42.00000    0  767   16.00000   42.00000   162%     -   33s
     0     0   42.00000    0  780   16.00000   42.00000   162%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 26
  Cover: 9
  Clique: 5
  MIR: 100
  GUB cover: 1
  Zero half: 39
  RLT: 58
  BQP: 1

Explored 1 nodes (70167 simplex iterations) in 50.08 seconds (42.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 16 14 11 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.200000000000e+01, gap 162.5000%

Wrote result file './lp_solutions/grafo5323.44.sol'

