
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:39:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5390.37.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/grafo5390.37.lp
Reading time = 0.09 seconds
: 44916 rows, 1699 columns, 136047 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 44916 rows, 1699 columns and 136047 nonzeros
Model fingerprint: 0xd23f2f52
Variable types: 41 continuous, 1658 integer (1658 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]
Presolve removed 4977 rows and 45 columns
Presolve time: 0.37s
Presolved: 39939 rows, 1654 columns, 121519 nonzeros
Variable types: 0 continuous, 1654 integer (1613 binary)
Found heuristic solution: objective 2.0000000
Root relaxation presolved: 21509 rows, 20084 columns, 84659 nonzeros


Root relaxation: objective 2.900000e+01, 2739 iterations, 1.49 seconds (0.90 work units)
Total elapsed time = 11.39s (DegenMoves)

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

     0     0   29.00000    0  280    2.00000   29.00000  1350%     -   12s
H    0     0                       3.0000000   29.00000   867%     -   12s
H    0     0                       5.0000000   29.00000   480%     -   13s
H    0     0                       6.0000000   29.00000   383%     -   14s
H    0     0                       7.0000000   29.00000   314%     -   14s
     0     0   29.00000    0  577    7.00000   29.00000   314%     -   17s
     0     0   29.00000    0  571    7.00000   29.00000   314%     -   18s
H    0     0                       8.0000000   29.00000   262%     -   26s
H    0     0                       9.0000000   29.00000   222%     -   26s
     0     0   29.00000    0  184    9.00000   29.00000   222%     -   26s
     0     0   29.00000    0  389    9.00000   29.00000   222%     -   28s
H    0     0                      10.0000000   29.00000   190%     -   34s
     0     0   29.00000    0  295   10.00000   29.00000   190%     -   34s
     0     0   29.00000    0  458   10.00000   29.00000   190%     -   36s
     0     0   29.00000    0  464   10.00000   29.00000   190%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 3
  MIR: 83
  StrongCG: 3
  GUB cover: 3
  Zero half: 36
  RLT: 40
  PSD: 1

Explored 1 nodes (55250 simplex iterations) in 50.06 seconds (34.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 10 9 8 ... 2

Time limit reached
Best objective 1.000000000000e+01, best bound 2.900000000000e+01, gap 190.0000%

Wrote result file './lp_solutions/grafo5390.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:32:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5390.37.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/grafo5390.37.lp
Reading time = 0.07 seconds
: 44916 rows, 1699 columns, 136047 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 44916 rows, 1699 columns and 136047 nonzeros
Model fingerprint: 0xd23f2f52
Variable types: 41 continuous, 1658 integer (1658 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]
Presolve removed 4977 rows and 45 columns
Presolve time: 0.31s
Presolved: 39939 rows, 1654 columns, 121519 nonzeros
Variable types: 0 continuous, 1654 integer (1613 binary)
Found heuristic solution: objective 2.0000000
Root relaxation presolved: 21509 rows, 20084 columns, 84659 nonzeros


Root relaxation: objective 2.900000e+01, 2739 iterations, 0.98 seconds (0.90 work units)
Total elapsed time = 9.18s (DegenMoves)
Total elapsed time = 10.03s (DegenMoves)

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

     0     0   29.00000    0  280    2.00000   29.00000  1350%     -   10s
H    0     0                       3.0000000   29.00000   867%     -   10s
H    0     0                       5.0000000   29.00000   480%     -   10s
H    0     0                       6.0000000   29.00000   383%     -   10s
H    0     0                       7.0000000   29.00000   314%     -   10s
     0     0   29.00000    0  577    7.00000   29.00000   314%     -   13s
     0     0   29.00000    0  571    7.00000   29.00000   314%     -   13s
H    0     0                       8.0000000   29.00000   262%     -   19s
H    0     0                       9.0000000   29.00000   222%     -   19s
     0     0   29.00000    0  184    9.00000   29.00000   222%     -   19s
     0     0   29.00000    0  389    9.00000   29.00000   222%     -   20s
H    0     0                      10.0000000   29.00000   190%     -   24s
     0     0   29.00000    0  295   10.00000   29.00000   190%     -   24s
     0     0   29.00000    0  458   10.00000   29.00000   190%     -   25s
H    0     0                      11.0000000   29.00000   164%     -   34s
     0     0   28.66667    0  409   11.00000   28.66667   161%     -   34s
     0     0   28.66667    0  457   11.00000   28.66667   161%     -   35s
     0     0   28.66667    0  404   11.00000   28.66667   161%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 22
  Clique: 3
  MIR: 77
  GUB cover: 1
  Zero half: 16
  RLT: 38
  Relax-and-lift: 1
  PSD: 1

Explored 1 nodes (76319 simplex iterations) in 50.04 seconds (50.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 11 10 9 ... 2

Time limit reached
Best objective 1.100000000000e+01, best bound 2.800000000000e+01, gap 154.5455%

Wrote result file './lp_solutions/grafo5390.37.sol'

