
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:08:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11493.37.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/grafo11493.37.lp
Reading time = 0.20 seconds
: 95735 rows, 2164 columns, 289145 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 95735 rows, 2164 columns and 289145 nonzeros
Model fingerprint: 0x0835b644
Variable types: 48 continuous, 2116 integer (2116 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 26519 rows and 30 columns
Presolve time: 1.15s
Presolved: 69216 rows, 2134 columns, 210066 nonzeros
Variable types: 0 continuous, 2134 integer (2086 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2131 rows, 71347 columns, 212200 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15282    5.1845796e+01   0.000000e+00   7.946403e+04      5s
   34642    5.1804703e+01   0.000000e+00   1.020093e+03     10s
   41852    5.2000000e+01   0.000000e+00   0.000000e+00     12s
   41852    5.2000000e+01   0.000000e+00   0.000000e+00     12s
   41852    5.2000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.200000e+01, 41852 iterations, 10.91 seconds (6.49 work units)
Total elapsed time = 22.10s (DegenMoves)

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

     0     0   52.00000    0  576    6.00000   52.00000   767%     -   24s
H    0     0                       8.0000000   52.00000   550%     -   24s
     0     0   52.00000    0  939    8.00000   52.00000   550%     -   49s

Cutting planes:
  Gomory: 4
  Cover: 2
  Clique: 9
  MIR: 55
  GUB cover: 1
  Zero half: 5
  RLT: 18
  BQP: 2

Explored 1 nodes (63588 simplex iterations) in 50.10 seconds (32.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 6 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.200000000000e+01, gap 550.0000%

Wrote result file './lp_solutions/grafo11493.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:12:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11493.37.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/grafo11493.37.lp
Reading time = 0.16 seconds
: 95735 rows, 2164 columns, 289145 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 95735 rows, 2164 columns and 289145 nonzeros
Model fingerprint: 0x0835b644
Variable types: 48 continuous, 2116 integer (2116 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 26519 rows and 30 columns
Presolve time: 0.69s
Presolved: 69216 rows, 2134 columns, 210066 nonzeros
Variable types: 0 continuous, 2134 integer (2086 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2131 rows, 71347 columns, 212200 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23378    5.1816683e+01   0.000000e+00   1.719990e+04      5s
   41852    5.2000000e+01   0.000000e+00   0.000000e+00      9s
   41852    5.2000000e+01   0.000000e+00   0.000000e+00      9s
   41852    5.2000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 5.200000e+01, 41852 iterations, 7.87 seconds (6.49 work units)
Total elapsed time = 16.34s (DegenMoves)

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

     0     0   52.00000    0  576    6.00000   52.00000   767%     -   18s
H    0     0                       8.0000000   52.00000   550%     -   18s
     0     0   52.00000    0  939    8.00000   52.00000   550%     -   36s
     0     0   52.00000    0  842    8.00000   52.00000   550%     -   41s
     0     0          -    0         8.00000   52.00000   550%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 29
  Cover: 8
  Clique: 9
  MIR: 135
  GUB cover: 1
  Zero half: 46
  RLT: 49
  BQP: 2

Explored 1 nodes (67392 simplex iterations) in 50.07 seconds (42.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 6 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.200000000000e+01, gap 550.0000%

Wrote result file './lp_solutions/grafo11493.37.sol'

