
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:43:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3924.44.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/grafo3924.44.lp
Reading time = 0.14 seconds
: 72137 rows, 2265 columns, 218163 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 72137 rows, 2265 columns and 218163 nonzeros
Model fingerprint: 0xd85bf22a
Variable types: 46 continuous, 2219 integer (2219 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 9292 rows and 1 columns
Presolve time: 0.52s
Presolved: 62845 rows, 2264 columns, 190586 nonzeros
Variable types: 0 continuous, 2264 integer (2218 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2237 rows, 65082 columns, 192850 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20029    4.5976581e+01   0.000000e+00   5.727926e+04      5s
   39935    4.5966396e+01   0.000000e+00   8.399412e+03     10s
   54987    4.6000000e+01   0.000000e+00   0.000000e+00     15s
   54987    4.6000000e+01   0.000000e+00   0.000000e+00     15s
   54987    4.6000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.600000e+01, 54987 iterations, 14.00 seconds (8.54 work units)
Total elapsed time = 25.72s (DegenMoves)

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

     0     0   46.00000    0  474    9.00000   46.00000   411%     -   27s
H    0     0                      10.0000000   46.00000   360%     -   27s
     0     0   46.00000    0  801   10.00000   46.00000   360%     -   44s
     0     0   46.00000    0  791   10.00000   46.00000   360%     -   45s

Cutting planes:
  Gomory: 3
  Lift-and-project: 23
  Cover: 13
  MIR: 208
  StrongCG: 2
  Zero half: 61
  RLT: 48

Explored 1 nodes (74746 simplex iterations) in 50.39 seconds (30.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.600000000000e+01, gap 360.0000%

Wrote result file './lp_solutions/grafo3924.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:14:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3924.44.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/grafo3924.44.lp
Reading time = 0.11 seconds
: 72137 rows, 2265 columns, 218163 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 72137 rows, 2265 columns and 218163 nonzeros
Model fingerprint: 0xd85bf22a
Variable types: 46 continuous, 2219 integer (2219 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 9292 rows and 1 columns
Presolve time: 0.40s
Presolved: 62845 rows, 2264 columns, 190586 nonzeros
Variable types: 0 continuous, 2264 integer (2218 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2237 rows, 65082 columns, 192850 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27455    4.5970297e+01   0.000000e+00   8.698437e+04      5s
   52424    4.5964777e+01   0.000000e+00   1.008397e+02     10s
   54987    4.6000000e+01   0.000000e+00   0.000000e+00     11s
   54987    4.6000000e+01   0.000000e+00   0.000000e+00     11s
   54987    4.6000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.600000e+01, 54987 iterations, 10.16 seconds (8.54 work units)
Total elapsed time = 19.48s (DegenMoves)
Total elapsed time = 20.10s (DegenMoves)

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

     0     0   46.00000    0  474    9.00000   46.00000   411%     -   20s
H    0     0                      10.0000000   46.00000   360%     -   20s
     0     0   46.00000    0  801   10.00000   46.00000   360%     -   32s
     0     0   46.00000    0  791   10.00000   46.00000   360%     -   33s
     0     0   46.00000    0  743   10.00000   46.00000   360%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 27
  Cover: 13
  MIR: 204
  StrongCG: 2
  Zero half: 53
  RLT: 84

Explored 1 nodes (86492 simplex iterations) in 50.07 seconds (42.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.600000000000e+01, gap 360.0000%

Wrote result file './lp_solutions/grafo3924.44.sol'

