
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 22:02:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3351.38.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/grafo3351.38.lp
Reading time = 0.12 seconds
: 71650 rows, 1758 columns, 216238 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 71650 rows, 1758 columns and 216238 nonzeros
Model fingerprint: 0x8b7093f2
Variable types: 39 continuous, 1719 integer (1719 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 3.0000000
Presolve removed 21274 rows and 16 columns
Presolve time: 0.49s
Presolved: 50376 rows, 1742 columns, 152737 nonzeros
Variable types: 0 continuous, 1742 integer (1703 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1742 rows, 52118 columns, 154479 nonzeros


Root relaxation: objective 4.000000e+01, 2718 iterations, 0.86 seconds (1.06 work units)
Total elapsed time = 6.11s (DegenMoves)

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

     0     0   40.00000    0  571    9.00000   40.00000   344%     -    7s
H    0     0                      11.0000000   40.00000   264%     -    7s
H    0     0                      12.0000000   40.00000   233%     -   15s
     0     0   40.00000    0  593   12.00000   40.00000   233%     -   15s
     0     0   40.00000    0  578   12.00000   40.00000   233%     -   16s
H    0     0                      13.0000000   40.00000   208%     -   40s
H    0     0                      14.0000000   40.00000   186%     -   40s
     0     0   39.00000    0  463   14.00000   39.00000   179%     -   40s
     0     0   39.00000    0  478   14.00000   39.00000   179%     -   41s
     0     0   39.00000    0  689   14.00000   39.00000   179%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 33
  Clique: 31
  MIR: 127
  StrongCG: 1
  GUB cover: 2
  Zero half: 52
  RLT: 74

Explored 1 nodes (42634 simplex iterations) in 50.06 seconds (44.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 3

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo3351.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:46:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3351.38.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/grafo3351.38.lp
Reading time = 0.12 seconds
: 71650 rows, 1758 columns, 216238 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 71650 rows, 1758 columns and 216238 nonzeros
Model fingerprint: 0x8b7093f2
Variable types: 39 continuous, 1719 integer (1719 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 3.0000000
Presolve removed 21274 rows and 16 columns
Presolve time: 0.47s
Presolved: 50376 rows, 1742 columns, 152737 nonzeros
Variable types: 0 continuous, 1742 integer (1703 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1742 rows, 52118 columns, 154479 nonzeros


Root relaxation: objective 4.000000e+01, 2718 iterations, 0.83 seconds (1.06 work units)
Total elapsed time = 5.50s (DegenMoves)

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

     0     0   40.00000    0  571    9.00000   40.00000   344%     -    6s
H    0     0                      11.0000000   40.00000   264%     -    6s
H    0     0                      12.0000000   40.00000   233%     -   13s
     0     0   40.00000    0  593   12.00000   40.00000   233%     -   14s
     0     0   40.00000    0  578   12.00000   40.00000   233%     -   14s
H    0     0                      13.0000000   40.00000   208%     -   36s
H    0     0                      14.0000000   40.00000   186%     -   36s
     0     0   39.00000    0  463   14.00000   39.00000   179%     -   36s
     0     0   39.00000    0  478   14.00000   39.00000   179%     -   37s
     0     0   39.00000    0  689   14.00000   39.00000   179%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 33
  Clique: 31
  MIR: 127
  StrongCG: 1
  GUB cover: 2
  Zero half: 52
  RLT: 74

Explored 1 nodes (46953 simplex iterations) in 50.06 seconds (48.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 12 ... 3

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo3351.38.sol'

