
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:18:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11554.36.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/grafo11554.36.lp
Reading time = 0.25 seconds
: 117495 rows, 2037 columns, 354305 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 117495 rows, 2037 columns and 354305 nonzeros
Model fingerprint: 0x6879f67e
Variable types: 46 continuous, 1991 integer (1991 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 41298 rows and 27 columns
Presolve time: 1.29s
Presolved: 76197 rows, 2010 columns, 230779 nonzeros
Variable types: 0 continuous, 2010 integer (1964 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2010 rows, 78207 columns, 232789 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13933    5.0472668e+01   0.000000e+00   6.730211e+04      5s
   35902    4.9810938e+01   0.000000e+00   3.363270e+04     10s
   42760    5.0000000e+01   0.000000e+00   0.000000e+00     12s
   42760    5.0000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.000000e+01, 42760 iterations, 10.46 seconds (5.82 work units)
Total elapsed time = 19.30s (DegenMoves)
Total elapsed time = 20.42s (DegenMoves)

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

     0     0   50.00000    0  410    7.00000   50.00000   614%     -   21s
H    0     0                       9.0000000   50.00000   456%     -   21s
H    0     0                      10.0000000   50.00000   400%     -   22s
     0     0   50.00000    0  694   10.00000   50.00000   400%     -   37s
H    0     0                      13.0000000   50.00000   285%     -   39s
     0     0   50.00000    0  626   13.00000   50.00000   285%     -   41s
     0     0          -    0        13.00000   50.00000   285%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 33
  Cover: 17
  Clique: 15
  MIR: 115
  Zero half: 40
  RLT: 60

Explored 1 nodes (59839 simplex iterations) in 50.14 seconds (31.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 10 9 ... 1

Time limit reached
Best objective 1.300000000000e+01, best bound 5.000000000000e+01, gap 284.6154%

Wrote result file './lp_solutions/grafo11554.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:03:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11554.36.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/grafo11554.36.lp
Reading time = 0.19 seconds
: 117495 rows, 2037 columns, 354305 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 117495 rows, 2037 columns and 354305 nonzeros
Model fingerprint: 0x6879f67e
Variable types: 46 continuous, 1991 integer (1991 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 41298 rows and 27 columns
Presolve time: 0.81s
Presolved: 76197 rows, 2010 columns, 230779 nonzeros
Variable types: 0 continuous, 2010 integer (1964 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2010 rows, 78207 columns, 232789 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24210    4.9839589e+01   0.000000e+00   1.754720e+04      5s
   42760    5.0000000e+01   0.000000e+00   0.000000e+00      8s
   42760    5.0000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 5.000000e+01, 42760 iterations, 7.39 seconds (5.82 work units)
Total elapsed time = 14.11s (DegenMoves)
Total elapsed time = 15.26s (DegenMoves)

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

     0     0   50.00000    0  410    7.00000   50.00000   614%     -   15s
H    0     0                       9.0000000   50.00000   456%     -   15s
H    0     0                      10.0000000   50.00000   400%     -   15s
     0     0   50.00000    0  694   10.00000   50.00000   400%     -   26s
H    0     0                      13.0000000   50.00000   285%     -   27s
     0     0   50.00000    0  626   13.00000   50.00000   285%     -   28s
     0     0   50.00000    0  740   13.00000   50.00000   285%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 33
  Cover: 17
  Clique: 15
  MIR: 115
  Zero half: 40
  RLT: 60

Explored 1 nodes (70458 simplex iterations) in 50.11 seconds (45.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 10 9 ... 1

Time limit reached
Best objective 1.300000000000e+01, best bound 5.000000000000e+01, gap 284.6154%

Wrote result file './lp_solutions/grafo11554.36.sol'

