
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:52:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6577.38.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/grafo6577.38.lp
Reading time = 0.12 seconds
: 66140 rows, 2089 columns, 200257 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 66140 rows, 2089 columns and 200257 nonzeros
Model fingerprint: 0x51bc18a4
Variable types: 47 continuous, 2042 integer (2042 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 9993 rows and 38 columns
Presolve time: 0.50s
Presolved: 56147 rows, 2051 columns, 170776 nonzeros
Variable types: 0 continuous, 2051 integer (2004 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2048 rows, 58195 columns, 172827 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26244    4.0941993e+01   0.000000e+00   1.339338e-01      5s
   26300    4.1000000e+01   0.000000e+00   0.000000e+00      5s
   26300    4.1000000e+01   0.000000e+00   0.000000e+00      5s
   26300    4.1000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 4.100000e+01, 26300 iterations, 4.49 seconds (3.36 work units)
Total elapsed time = 13.48s (DegenMoves)

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

     0     0   41.00000    0  583    8.00000   41.00000   412%     -   14s
H    0     0                       9.0000000   41.00000   356%     -   14s
H    0     0                      10.0000000   41.00000   310%     -   14s
H    0     0                      11.0000000   41.00000   273%     -   17s
     0     0   41.00000    0  931   11.00000   41.00000   273%     -   30s
     0     0   41.00000    0  918   11.00000   41.00000   273%     -   32s
     0     0   41.00000    0  962   11.00000   41.00000   273%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 4
  Clique: 2
  MIR: 128
  StrongCG: 1
  GUB cover: 1
  Zero half: 72
  RLT: 50
  BQP: 2
  PSD: 1

Explored 1 nodes (55729 simplex iterations) in 50.09 seconds (36.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 4.100000000000e+01, gap 272.7273%

Wrote result file './lp_solutions/grafo6577.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:47:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6577.38.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/grafo6577.38.lp
Reading time = 0.11 seconds
: 66140 rows, 2089 columns, 200257 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 66140 rows, 2089 columns and 200257 nonzeros
Model fingerprint: 0x51bc18a4
Variable types: 47 continuous, 2042 integer (2042 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 9993 rows and 38 columns
Presolve time: 0.42s
Presolved: 56147 rows, 2051 columns, 170776 nonzeros
Variable types: 0 continuous, 2051 integer (2004 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2048 rows, 58195 columns, 172827 nonzeros


Root relaxation: objective 4.100000e+01, 26300 iterations, 4.00 seconds (3.36 work units)
Total elapsed time = 11.95s (DegenMoves)

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

     0     0   41.00000    0  583    8.00000   41.00000   412%     -   12s
H    0     0                       9.0000000   41.00000   356%     -   12s
H    0     0                      10.0000000   41.00000   310%     -   12s
H    0     0                      11.0000000   41.00000   273%     -   15s
     0     0   41.00000    0  931   11.00000   41.00000   273%     -   26s
     0     0   41.00000    0  918   11.00000   41.00000   273%     -   28s
     0     0   41.00000    0  962   11.00000   41.00000   273%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 4
  Clique: 2
  MIR: 128
  StrongCG: 1
  GUB cover: 1
  Zero half: 72
  RLT: 50
  BQP: 2
  PSD: 1

Explored 1 nodes (61805 simplex iterations) in 50.08 seconds (41.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 4.100000000000e+01, gap 272.7273%

Wrote result file './lp_solutions/grafo6577.38.sol'

