
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 08:48:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5783.36.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/grafo5783.36.lp
Reading time = 0.13 seconds
: 63189 rows, 1779 columns, 191004 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 63189 rows, 1779 columns and 191004 nonzeros
Model fingerprint: 0x19e5c31c
Variable types: 42 continuous, 1737 integer (1737 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 15054 rows and 31 columns
Presolve time: 0.66s
Presolved: 48135 rows, 1748 columns, 146250 nonzeros
Variable types: 0 continuous, 1748 integer (1706 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1742 rows, 49877 columns, 147998 nonzeros


Root relaxation: objective 3.900000e+01, 1588 iterations, 0.53 seconds (0.32 work units)
Total elapsed time = 5.00s (DegenMoves)

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

     0     0   39.00000    0  423    6.00000   39.00000   550%     -    5s
H    0     0                       7.0000000   39.00000   457%     -    5s
     0     0   39.00000    0  702    7.00000   39.00000   457%     -   16s
     0     0   39.00000    0  667    7.00000   39.00000   457%     -   17s
     0     0   39.00000    0  660    7.00000   39.00000   457%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 16
  Cover: 9
  Clique: 6
  MIR: 115
  Zero half: 66
  RLT: 41

Explored 1 nodes (34851 simplex iterations) in 50.07 seconds (33.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 6 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.900000000000e+01, gap 457.1429%

Wrote result file './lp_solutions/grafo5783.36.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:44:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5783.36.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/grafo5783.36.lp
Reading time = 0.10 seconds
: 63189 rows, 1779 columns, 191004 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 63189 rows, 1779 columns and 191004 nonzeros
Model fingerprint: 0x19e5c31c
Variable types: 42 continuous, 1737 integer (1737 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 15054 rows and 31 columns
Presolve time: 0.44s
Presolved: 48135 rows, 1748 columns, 146250 nonzeros
Variable types: 0 continuous, 1748 integer (1706 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1742 rows, 49877 columns, 147998 nonzeros


Root relaxation: objective 3.900000e+01, 1588 iterations, 0.32 seconds (0.32 work units)

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

     0     0   39.00000    0  423    6.00000   39.00000   550%     -    3s
H    0     0                       7.0000000   39.00000   457%     -    3s
     0     0   39.00000    0  702    7.00000   39.00000   457%     -   11s
     0     0   39.00000    0  667    7.00000   39.00000   457%     -   12s
H    0     0                       8.0000000   39.00000   387%     -   40s
     0     0   39.00000    0  568    8.00000   39.00000   387%     -   40s
H    0     0                       9.0000000   39.00000   333%     -   41s
     0     0   39.00000    0  561    9.00000   39.00000   333%     -   41s
     0     0   39.00000    0  590    9.00000   39.00000   333%     -   50s

Cutting planes:
  Cover: 20
  Clique: 12
  MIR: 172
  StrongCG: 4
  GUB cover: 3
  Zero half: 50
  RLT: 56
  BQP: 1

Explored 1 nodes (46292 simplex iterations) in 50.05 seconds (45.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo5783.36.sol'

