
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:37:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11625.37.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/grafo11625.37.lp
Reading time = 0.18 seconds
: 78963 rows, 2074 columns, 238770 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 78963 rows, 2074 columns and 238770 nonzeros
Model fingerprint: 0xd2f0e030
Variable types: 47 continuous, 2027 integer (2027 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 4.0000000
Presolve removed 17869 rows and 33 columns
Presolve time: 0.96s
Presolved: 61094 rows, 2041 columns, 185635 nonzeros
Variable types: 0 continuous, 2041 integer (1994 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2038 rows, 63132 columns, 187676 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17314    4.1767217e+01   0.000000e+00   7.529492e+03      5s
   32626    4.2000000e+01   0.000000e+00   0.000000e+00      9s
   32626    4.2000000e+01   0.000000e+00   0.000000e+00      9s
   32626    4.2000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.200000e+01, 32626 iterations, 7.83 seconds (4.66 work units)
Total elapsed time = 17.00s (DegenMoves)

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

     0     0   42.00000    0  430   10.00000   42.00000   320%     -   18s
H    0     0                      13.0000000   42.00000   223%     -   18s
     0     0   42.00000    0  718   13.00000   42.00000   223%     -   34s
     0     0   42.00000    0  718   13.00000   42.00000   223%     -   36s
     0     0          -    0        13.00000   42.00000   223%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 32
  Cover: 12
  Clique: 16
  MIR: 124
  GUB cover: 1
  Zero half: 31
  RLT: 61
  BQP: 8

Explored 1 nodes (53447 simplex iterations) in 50.08 seconds (29.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 4 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.200000000000e+01, gap 223.0769%

Wrote result file './lp_solutions/grafo11625.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:16:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11625.37.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/grafo11625.37.lp
Reading time = 0.13 seconds
: 78963 rows, 2074 columns, 238770 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 78963 rows, 2074 columns and 238770 nonzeros
Model fingerprint: 0xd2f0e030
Variable types: 47 continuous, 2027 integer (2027 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 4.0000000
Presolve removed 17869 rows and 33 columns
Presolve time: 0.59s
Presolved: 61094 rows, 2041 columns, 185635 nonzeros
Variable types: 0 continuous, 2041 integer (1994 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2038 rows, 63132 columns, 187676 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24754    4.1757922e+01   0.000000e+00   3.716429e+03      5s
   32626    4.2000000e+01   0.000000e+00   0.000000e+00      7s
   32626    4.2000000e+01   0.000000e+00   0.000000e+00      7s
   32626    4.2000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.200000e+01, 32626 iterations, 5.88 seconds (4.66 work units)
Total elapsed time = 12.95s (DegenMoves)

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

     0     0   42.00000    0  430   10.00000   42.00000   320%     -   14s
H    0     0                      13.0000000   42.00000   223%     -   14s
     0     0   42.00000    0  718   13.00000   42.00000   223%     -   25s
     0     0   42.00000    0  718   13.00000   42.00000   223%     -   26s
     0     0   42.00000    0  753   13.00000   42.00000   223%     -   50s

Cutting planes:
  Gomory: 7
  Lift-and-project: 32
  Cover: 12
  Clique: 16
  MIR: 124
  GUB cover: 1
  Zero half: 31
  RLT: 61
  BQP: 8

Explored 1 nodes (63054 simplex iterations) in 50.10 seconds (41.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 10 4 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.200000000000e+01, gap 223.0769%

Wrote result file './lp_solutions/grafo11625.37.sol'

