
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:47:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3976.38.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/grafo3976.38.lp
Reading time = 0.32 seconds
: 159250 rows, 2219 columns, 479682 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 159250 rows, 2219 columns and 479682 nonzeros
Model fingerprint: 0x5fb8b644
Variable types: 47 continuous, 2172 integer (2172 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 1.0000000
Presolve removed 61866 rows and 15 columns
Presolve time: 1.55s
Presolved: 97384 rows, 2204 columns, 294499 nonzeros
Variable types: 0 continuous, 2204 integer (2157 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2192 rows, 99576 columns, 296703 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14203    7.3599637e+01   0.000000e+00   8.531876e+04      5s
   33069    5.5834931e+01   0.000000e+00   5.225866e+04     10s
   52269    5.5806327e+01   0.000000e+00   3.966324e+04     15s
   71469    5.5802308e+01   0.000000e+00   3.847319e+01     20s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     21s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     21s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 5.600000e+01, 72727 iterations, 18.84 seconds (10.26 work units)
Total elapsed time = 39.42s (DegenMoves)
Total elapsed time = 45.22s (DegenMoves)

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

     0     0   56.00000    0  774   10.00000   56.00000   460%     -   50s

Explored 1 nodes (89830 simplex iterations) in 50.04 seconds (43.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.600000000000e+01, gap 460.0000%

Wrote result file './lp_solutions/grafo3976.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 09:28:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3976.38.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/grafo3976.38.lp
Reading time = 0.28 seconds
: 159250 rows, 2219 columns, 479682 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 159250 rows, 2219 columns and 479682 nonzeros
Model fingerprint: 0x5fb8b644
Variable types: 47 continuous, 2172 integer (2172 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 1.0000000
Presolve removed 61866 rows and 15 columns
Presolve time: 1.12s
Presolved: 97384 rows, 2204 columns, 294499 nonzeros
Variable types: 0 continuous, 2204 integer (2157 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2192 rows, 99576 columns, 296703 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20377    6.6885868e+01   0.000000e+00   2.508138e+05      5s
   45069    5.5811982e+01   0.000000e+00   1.082688e+04     10s
   70509    5.5802328e+01   0.000000e+00   1.214982e+01     15s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     16s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     16s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.600000e+01, 72727 iterations, 14.31 seconds (10.26 work units)
Total elapsed time = 31.57s (DegenMoves)
Total elapsed time = 36.38s (DegenMoves)
Total elapsed time = 40.71s (DegenMoves)

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

     0     0   56.00000    0  509   10.00000   56.00000   460%     -   41s
     0     0          -    0        10.00000   56.00000   460%     -   50s

Cutting planes:
  Gomory: 35
  Cover: 45
  Clique: 34
  MIR: 110
  StrongCG: 1
  GUB cover: 3
  Zero half: 29
  RLT: 56
  BQP: 7

Explored 1 nodes (94702 simplex iterations) in 50.02 seconds (54.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.600000000000e+01, gap 460.0000%

Wrote result file './lp_solutions/grafo3976.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 02:23:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3976.38.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/grafo3976.38.lp
Reading time = 0.25 seconds
: 159250 rows, 2219 columns, 479682 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 159250 rows, 2219 columns and 479682 nonzeros
Model fingerprint: 0x5fb8b644
Variable types: 47 continuous, 2172 integer (2172 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 1.0000000
Presolve removed 61866 rows and 15 columns
Presolve time: 1.05s
Presolved: 97384 rows, 2204 columns, 294499 nonzeros
Variable types: 0 continuous, 2204 integer (2157 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2192 rows, 99576 columns, 296703 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21389    6.6878696e+01   0.000000e+00   1.845653e+05      5s
   46989    5.5810208e+01   0.000000e+00   3.555246e+04     10s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     15s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     15s
   72727    5.6000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.600000e+01, 72727 iterations, 13.79 seconds (10.26 work units)
Total elapsed time = 15.01s (DegenMoves)
Total elapsed time = 30.40s (DegenMoves)
Total elapsed time = 35.10s (DegenMoves)

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

     0     0   56.00000    0  509   10.00000   56.00000   460%     -   39s
     0     0          -    0        10.00000   56.00000   460%     -   50s

Cutting planes:
  Gomory: 35
  Cover: 45
  Clique: 34
  MIR: 110
  StrongCG: 1
  GUB cover: 3
  Zero half: 29
  RLT: 56
  BQP: 7

Explored 1 nodes (95650 simplex iterations) in 50.03 seconds (56.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.600000000000e+01, gap 460.0000%

Wrote result file './lp_solutions/grafo3976.38.sol'

