
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 07:27:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5276.34.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/grafo5276.34.lp
Reading time = 0.10 seconds
: 47627 rows, 1640 columns, 144203 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 47627 rows, 1640 columns and 144203 nonzeros
Model fingerprint: 0x93c1833d
Variable types: 41 continuous, 1599 integer (1599 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 2.0000000
Presolve removed 8683 rows and 40 columns
Presolve time: 0.46s
Presolved: 38944 rows, 1600 columns, 118606 nonzeros
Variable types: 0 continuous, 1600 integer (1559 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 22300 rows, 18244 columns, 85318 nonzeros


Root relaxation: objective 3.600000e+01, 4089 iterations, 2.81 seconds (1.81 work units)
Total elapsed time = 6.14s (DegenMoves)

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

     0     0   36.00000    0  339    7.00000   36.00000   414%     -    8s
H    0     0                       9.0000000   36.00000   300%     -    8s
H    0     0                      11.0000000   36.00000   227%     -    8s
     0     0   36.00000    0  583   11.00000   36.00000   227%     -   12s
     0     0   36.00000    0  579   11.00000   36.00000   227%     -   12s
     0     0   36.00000    0  415   11.00000   36.00000   227%     -   28s
     0     0   36.00000    0  410   11.00000   36.00000   227%     -   28s
     0     0   36.00000    0  531   11.00000   36.00000   227%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 38
  Clique: 1
  MIR: 113
  StrongCG: 1
  GUB cover: 4
  Zero half: 57
  RLT: 41

Explored 1 nodes (45579 simplex iterations) in 50.06 seconds (33.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 9 7 2 

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

Wrote result file './lp_solutions/grafo5276.34.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 05:28:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5276.34.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/grafo5276.34.lp
Reading time = 0.08 seconds
: 47627 rows, 1640 columns, 144203 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 47627 rows, 1640 columns and 144203 nonzeros
Model fingerprint: 0x93c1833d
Variable types: 41 continuous, 1599 integer (1599 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 2.0000000
Presolve removed 8683 rows and 40 columns
Presolve time: 0.32s
Presolved: 38944 rows, 1600 columns, 118606 nonzeros
Variable types: 0 continuous, 1600 integer (1559 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 22300 rows, 18244 columns, 85318 nonzeros


Root relaxation: objective 3.600000e+01, 4089 iterations, 1.87 seconds (1.81 work units)
Total elapsed time = 5.12s (DegenMoves)

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

     0     0   36.00000    0  339    7.00000   36.00000   414%     -    5s
H    0     0                       9.0000000   36.00000   300%     -    5s
H    0     0                      11.0000000   36.00000   227%     -    5s
     0     0   36.00000    0  583   11.00000   36.00000   227%     -    8s
     0     0   36.00000    0  579   11.00000   36.00000   227%     -    8s
     0     0   36.00000    0  415   11.00000   36.00000   227%     -   20s
     0     0   36.00000    0  410   11.00000   36.00000   227%     -   20s
H    0     0                      12.0000000   36.00000   200%     -   42s
     0     0   36.00000    0  350   12.00000   36.00000   200%     -   42s
     0     0   36.00000    0  421   12.00000   36.00000   200%     -   43s
     0     0   36.00000    0  632   12.00000   36.00000   200%     -   50s

Cutting planes:
  Cover: 32
  Clique: 2
  MIR: 131
  GUB cover: 5
  Zero half: 54
  RLT: 43

Explored 1 nodes (66616 simplex iterations) in 50.05 seconds (47.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 9 ... 2

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo5276.34.sol'

