
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:36:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10087.39.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/grafo10087.39.lp
Reading time = 0.37 seconds
: 84785 rows, 2087 columns, 256082 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 84785 rows, 2087 columns and 256082 nonzeros
Model fingerprint: 0xdb11010a
Variable types: 44 continuous, 2043 integer (2043 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 4.0000000
Presolve removed 22760 rows and 16 columns
Presolve time: 1.38s
Presolved: 62025 rows, 2071 columns, 188314 nonzeros
Variable types: 0 continuous, 2071 integer (2027 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2071 rows, 64096 columns, 190385 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10599    4.7954678e+01   0.000000e+00   3.661467e+04      5s
   24406    4.6924334e+01   0.000000e+00   2.459674e+03     10s
   35609    4.7000000e+01   0.000000e+00   0.000000e+00     14s
   35609    4.7000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.700000e+01, 35609 iterations, 12.73 seconds (4.88 work units)
Total elapsed time = 26.60s (DegenMoves)

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

     0     0   47.00000    0  405    8.00000   47.00000   488%     -   29s
H    0     0                       9.0000000   47.00000   422%     -   29s
     0     0          -    0         9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 43
  Clique: 13
  MIR: 146
  StrongCG: 1
  GUB cover: 1
  Zero half: 92
  RLT: 55
  BQP: 1

Explored 1 nodes (49134 simplex iterations) in 50.09 seconds (17.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 4 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo10087.39.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:38:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10087.39.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/grafo10087.39.lp
Reading time = 0.14 seconds
: 84785 rows, 2087 columns, 256082 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 84785 rows, 2087 columns and 256082 nonzeros
Model fingerprint: 0xdb11010a
Variable types: 44 continuous, 2043 integer (2043 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 4.0000000
Presolve removed 22760 rows and 16 columns
Presolve time: 0.55s
Presolved: 62025 rows, 2071 columns, 188314 nonzeros
Variable types: 0 continuous, 2071 integer (2027 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2071 rows, 64096 columns, 190385 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28886    4.6922372e+01   0.000000e+00   3.361107e+03      5s
   35609    4.7000000e+01   0.000000e+00   0.000000e+00      6s
   35609    4.7000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.700000e+01, 35609 iterations, 5.61 seconds (4.88 work units)
Total elapsed time = 11.66s (DegenMoves)

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

     0     0   47.00000    0  405    8.00000   47.00000   488%     -   12s
H    0     0                       9.0000000   47.00000   422%     -   13s
     0     0   47.00000    0  780    9.00000   47.00000   422%     -   22s
     0     0   47.00000    0  734    9.00000   47.00000   422%     -   23s
     0     0   47.00000    0  645    9.00000   47.00000   422%     -   50s

Cutting planes:
  Gomory: 8
  Lift-and-project: 29
  Cover: 5
  Clique: 10
  MIR: 121
  Zero half: 80
  RLT: 56
  BQP: 1

Explored 1 nodes (73543 simplex iterations) in 50.10 seconds (48.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 4 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo10087.39.sol'

