
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:00:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3424.46.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/grafo3424.46.lp
Reading time = 0.20 seconds
: 94344 rows, 2481 columns, 284964 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 94344 rows, 2481 columns and 284964 nonzeros
Model fingerprint: 0x379031b3
Variable types: 48 continuous, 2433 integer (2433 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 17460 rows and 38 columns
Presolve time: 1.06s
Presolved: 76884 rows, 2443 columns, 232994 nonzeros
Variable types: 0 continuous, 2443 integer (2395 binary)
Root relaxation presolved: 2443 rows, 79327 columns, 235437 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14972    4.3798073e+01   0.000000e+00   3.024756e+04      5s
   32652    4.3769025e+01   0.000000e+00   2.696554e+03     10s
   38539    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   38539    4.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.400000e+01, 38539 iterations, 10.82 seconds (5.86 work units)
Total elapsed time = 26.15s (DegenMoves)

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

     0     0   44.00000    0  483          -   44.00000      -     -   27s
H    0     0                       9.0000000   44.00000   389%     -   27s
     0     0   44.00000    0  754    9.00000   44.00000   389%     -   38s
     0     0   44.00000    0  707    9.00000   44.00000   389%     -   39s
     0     0   44.00000    0  713    9.00000   44.00000   389%     -   50s

Cutting planes:
  Gomory: 15
  Lift-and-project: 21
  Cover: 7
  Clique: 3
  MIR: 118
  GUB cover: 3
  Zero half: 87
  RLT: 44
  BQP: 1

Explored 1 nodes (62669 simplex iterations) in 50.04 seconds (34.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.400000000000e+01, gap 388.8889%

Wrote result file './lp_solutions/grafo3424.46.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:51:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3424.46.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/grafo3424.46.lp
Reading time = 0.15 seconds
: 94344 rows, 2481 columns, 284964 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 94344 rows, 2481 columns and 284964 nonzeros
Model fingerprint: 0x379031b3
Variable types: 48 continuous, 2433 integer (2433 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 17460 rows and 38 columns
Presolve time: 0.69s
Presolved: 76884 rows, 2443 columns, 232994 nonzeros
Variable types: 0 continuous, 2443 integer (2395 binary)
Root relaxation presolved: 2443 rows, 79327 columns, 235437 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23132    4.3775839e+01   0.000000e+00   5.702793e+04      5s
   38539    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   38539    4.4000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.400000e+01, 38539 iterations, 7.49 seconds (5.86 work units)
Total elapsed time = 19.76s (DegenMoves)
Total elapsed time = 20.41s (DegenMoves)

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

     0     0   44.00000    0  483          -   44.00000      -     -   20s
H    0     0                       9.0000000   44.00000   389%     -   21s
     0     0   44.00000    0  754    9.00000   44.00000   389%     -   28s
     0     0   44.00000    0  707    9.00000   44.00000   389%     -   29s
     0     0   44.00000    0  409    9.00000   44.00000   389%     -   47s
H    0     0                      10.0000000   44.00000   340%     -   48s
     0     0   44.00000    0  434   10.00000   44.00000   340%     -   48s
     0     0          -    0        10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 31
  Clique: 9
  MIR: 146
  StrongCG: 1
  GUB cover: 12
  Zero half: 46
  RLT: 44

Explored 1 nodes (76865 simplex iterations) in 50.02 seconds (49.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 9 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.400000000000e+01, gap 340.0000%

Wrote result file './lp_solutions/grafo3424.46.sol'

