
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:04:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5539.36.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/grafo5539.36.lp
Reading time = 0.09 seconds
: 46257 rows, 1606 columns, 139955 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 46257 rows, 1606 columns and 139955 nonzeros
Model fingerprint: 0xccdbca49
Variable types: 39 continuous, 1567 integer (1567 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 8347 rows and 33 columns
Presolve time: 0.44s
Presolved: 37910 rows, 1573 columns, 115263 nonzeros
Variable types: 0 continuous, 1573 integer (1534 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 21631 rows, 17852 columns, 82705 nonzeros


Root relaxation: objective 3.600000e+01, 4118 iterations, 2.71 seconds (1.82 work units)
Total elapsed time = 6.91s (DegenMoves)

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

     0     0   36.00000    0  425    7.00000   36.00000   414%     -    8s
H    0     0                       9.0000000   36.00000   300%     -    8s
     0     0   36.00000    0  669    9.00000   36.00000   300%     -   15s
H    0     0                      10.0000000   36.00000   260%     -   16s
     0     0   36.00000    0  650   10.00000   36.00000   260%     -   16s
H    0     0                      11.0000000   36.00000   227%     -   33s
     0     0   36.00000    0  509   11.00000   36.00000   227%     -   34s
     0     0   36.00000    0  488   11.00000   36.00000   227%     -   35s
     0     0   36.00000    0  554   11.00000   36.00000   227%     -   50s

Cutting planes:
  Cover: 20
  MIR: 162
  GUB cover: 3
  Zero half: 29
  RLT: 57

Explored 1 nodes (46799 simplex iterations) in 50.06 seconds (33.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... -0

Time limit reached
Best objective 1.100000000000e+01, best bound 3.600000000000e+01, gap 227.2727%

Wrote result file './lp_solutions/grafo5539.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:39:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5539.36.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/grafo5539.36.lp
Reading time = 0.08 seconds
: 46257 rows, 1606 columns, 139955 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 46257 rows, 1606 columns and 139955 nonzeros
Model fingerprint: 0xccdbca49
Variable types: 39 continuous, 1567 integer (1567 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 8347 rows and 33 columns
Presolve time: 0.31s
Presolved: 37910 rows, 1573 columns, 115263 nonzeros
Variable types: 0 continuous, 1573 integer (1534 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 21631 rows, 17852 columns, 82705 nonzeros


Root relaxation: objective 3.600000e+01, 4118 iterations, 1.96 seconds (1.82 work units)
Total elapsed time = 5.38s (DegenMoves)

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

     0     0   36.00000    0  425    7.00000   36.00000   414%     -    6s
H    0     0                       9.0000000   36.00000   300%     -    6s
     0     0   36.00000    0  669    9.00000   36.00000   300%     -   10s
H    0     0                      10.0000000   36.00000   260%     -   10s
     0     0   36.00000    0  650   10.00000   36.00000   260%     -   11s
H    0     0                      11.0000000   36.00000   227%     -   23s
     0     0   36.00000    0  509   11.00000   36.00000   227%     -   24s
     0     0   36.00000    0  488   11.00000   36.00000   227%     -   24s
H    0     0                      12.0000000   36.00000   200%     -   37s
H    0     0                      13.0000000   36.00000   177%     -   37s
     0     0   35.66667    0  449   13.00000   35.66667   174%     -   37s
     0     0   35.66667    0  473   13.00000   35.66667   174%     -   38s
     0     0   35.66667    0  689   13.00000   35.66667   174%     -   50s

Cutting planes:
  Cover: 25
  Clique: 2
  MIR: 174
  StrongCG: 2
  GUB cover: 3
  Zero half: 35
  RLT: 50

Explored 1 nodes (64763 simplex iterations) in 50.06 seconds (46.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... -0

Time limit reached
Best objective 1.300000000000e+01, best bound 3.500000000000e+01, gap 169.2308%

Wrote result file './lp_solutions/grafo5539.36.sol'

