
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:28:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5680.37.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/grafo5680.37.lp
Reading time = 0.21 seconds
: 108936 rows, 2378 columns, 329106 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 108936 rows, 2378 columns and 329106 nonzeros
Model fingerprint: 0xd5faf313
Variable types: 52 continuous, 2326 integer (2326 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 -0.0000000
Presolve removed 28444 rows and 36 columns
Presolve time: 1.21s
Presolved: 80492 rows, 2342 columns, 244258 nonzeros
Variable types: 0 continuous, 2342 integer (2290 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2336 rows, 82828 columns, 246600 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13834    5.3849581e+01   0.000000e+00   2.876498e+05      5s
   31397    5.3709462e+01   0.000000e+00   4.083801e+04     10s
   48821    5.3685461e+01   0.000000e+00   1.049524e+04     15s
   64097    5.4000000e+01   0.000000e+00   0.000000e+00     20s
   64097    5.4000000e+01   0.000000e+00   0.000000e+00     20s
   64097    5.4000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 5.400000e+01, 64097 iterations, 18.39 seconds (10.33 work units)
Total elapsed time = 32.78s (DegenMoves)
Total elapsed time = 36.59s (DegenMoves)

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

     0     0   54.00000    0  584   10.00000   54.00000   440%     -   37s
     0     0          -    0        10.00000   54.00000   440%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 46
  Clique: 14
  MIR: 212
  GUB cover: 15
  Zero half: 61
  RLT: 59

Explored 1 nodes (84149 simplex iterations) in 50.04 seconds (37.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.400000000000e+01, gap 440.0000%

Wrote result file './lp_solutions/grafo5680.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:37:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5680.37.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/grafo5680.37.lp
Reading time = 0.18 seconds
: 108936 rows, 2378 columns, 329106 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 108936 rows, 2378 columns and 329106 nonzeros
Model fingerprint: 0xd5faf313
Variable types: 52 continuous, 2326 integer (2326 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 -0.0000000
Presolve removed 28444 rows and 36 columns
Presolve time: 0.79s
Presolved: 80492 rows, 2342 columns, 244258 nonzeros
Variable types: 0 continuous, 2342 integer (2290 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2336 rows, 82828 columns, 246600 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20127    5.3781165e+01   0.000000e+00   1.371539e+05      5s
   44102    5.3688337e+01   0.000000e+00   4.492875e+03     10s
   64097    5.4000000e+01   0.000000e+00   0.000000e+00     14s
   64097    5.4000000e+01   0.000000e+00   0.000000e+00     14s
   64097    5.4000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.400000e+01, 64097 iterations, 13.60 seconds (10.33 work units)
Total elapsed time = 25.23s (DegenMoves)

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

     0     0   54.00000    0  584   10.00000   54.00000   440%     -   29s
     0     0   54.00000    0  972   10.00000   54.00000   440%     -   48s
     0     0          -    0        10.00000   54.00000   440%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 1
  Clique: 10
  MIR: 78
  Zero half: 14
  RLT: 34
  BQP: 1

Explored 1 nodes (90277 simplex iterations) in 50.02 seconds (49.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.400000000000e+01, gap 440.0000%

Wrote result file './lp_solutions/grafo5680.37.sol'

