
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:03:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5130.44.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/grafo5130.44.lp
Reading time = 0.17 seconds
: 84213 rows, 2386 columns, 254619 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 84213 rows, 2386 columns and 254619 nonzeros
Model fingerprint: 0x45d4df4c
Variable types: 48 continuous, 2338 integer (2338 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 13980 rows and 23 columns
Presolve time: 0.94s
Presolved: 70233 rows, 2363 columns, 213069 nonzeros
Variable types: 0 continuous, 2363 integer (2315 binary)
Root relaxation presolved: 2363 rows, 72596 columns, 215432 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16456    4.3782268e+01   0.000000e+00   1.594472e+04      5s
   32959    4.3768895e+01   0.000000e+00   3.884111e+02     10s
   36866    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   36866    4.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.400000e+01, 36866 iterations, 11.21 seconds (5.80 work units)
Total elapsed time = 21.93s (DegenMoves)

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

     0     0   44.00000    0  359          -   44.00000      -     -   24s
H    0     0                      11.0000000   44.00000   300%     -   24s
H    0     0                      12.0000000   44.00000   267%     -   24s
H    0     0                      13.0000000   44.00000   238%     -   27s
     0     0   44.00000    0  721   13.00000   44.00000   238%     -   39s
H    0     0                      14.0000000   44.00000   214%     -   40s
     0     0   44.00000    0  662   14.00000   44.00000   214%     -   42s
     0     0          -    0        14.00000   44.00000   214%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 29
  Cover: 13
  Clique: 7
  MIR: 146
  StrongCG: 1
  GUB cover: 2
  Zero half: 28
  RLT: 50
  BQP: 2

Explored 1 nodes (54899 simplex iterations) in 50.13 seconds (27.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 11 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.400000000000e+01, gap 214.2857%

Wrote result file './lp_solutions/grafo5130.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:15:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5130.44.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/grafo5130.44.lp
Reading time = 0.13 seconds
: 84213 rows, 2386 columns, 254619 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 84213 rows, 2386 columns and 254619 nonzeros
Model fingerprint: 0x45d4df4c
Variable types: 48 continuous, 2338 integer (2338 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 13980 rows and 23 columns
Presolve time: 0.56s
Presolved: 70233 rows, 2363 columns, 213069 nonzeros
Variable types: 0 continuous, 2363 integer (2315 binary)
Root relaxation presolved: 2363 rows, 72596 columns, 215432 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25039    4.3772145e+01   0.000000e+00   7.908917e+03      5s
   36866    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   36866    4.4000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.400000e+01, 36866 iterations, 6.86 seconds (5.80 work units)
Total elapsed time = 13.93s (DegenMoves)

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

     0     0   44.00000    0  359          -   44.00000      -     -   15s
H    0     0                      11.0000000   44.00000   300%     -   15s
H    0     0                      12.0000000   44.00000   267%     -   15s
H    0     0                      13.0000000   44.00000   238%     -   16s
     0     0   44.00000    0  721   13.00000   44.00000   238%     -   25s
H    0     0                      14.0000000   44.00000   214%     -   25s
     0     0   44.00000    0  662   14.00000   44.00000   214%     -   27s
     0     0   44.00000    0  578   14.00000   44.00000   214%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 29
  Cover: 13
  Clique: 7
  MIR: 146
  StrongCG: 1
  GUB cover: 2
  Zero half: 28
  RLT: 50
  BQP: 2

Explored 1 nodes (72352 simplex iterations) in 50.09 seconds (48.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 11 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.400000000000e+01, gap 214.2857%

Wrote result file './lp_solutions/grafo5130.44.sol'

