
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:55:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2955.38.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/grafo2955.38.lp
Reading time = 0.21 seconds
: 85322 rows, 1999 columns, 257621 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 85322 rows, 1999 columns and 257621 nonzeros
Model fingerprint: 0x42bc3e8e
Variable types: 43 continuous, 1956 integer (1956 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 24901 rows and 10 columns
Presolve time: 0.54s
Presolved: 60421 rows, 1989 columns, 183379 nonzeros
Variable types: 0 continuous, 1989 integer (1946 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1986 rows, 62407 columns, 185368 nonzeros


Root relaxation: objective 4.600000e+01, 1601 iterations, 0.44 seconds (0.30 work units)

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

     0     0   46.00000    0  375    9.00000   46.00000   411%     -    3s
H    0     0                      10.0000000   46.00000   360%     -    3s
H    0     0                      11.0000000   46.00000   318%     -   23s
     0     0   46.00000    0  980   11.00000   46.00000   318%     -   23s
     0     0   46.00000    0  952   11.00000   46.00000   318%     -   26s
     0     0   46.00000    0  881   11.00000   46.00000   318%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 2
  Clique: 17
  MIR: 142
  Zero half: 149
  RLT: 51
  BQP: 2

Explored 1 nodes (32461 simplex iterations) in 50.06 seconds (38.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.600000000000e+01, gap 318.1818%

Wrote result file './lp_solutions/grafo2955.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:38:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2955.38.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/grafo2955.38.lp
Reading time = 0.14 seconds
: 85322 rows, 1999 columns, 257621 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 85322 rows, 1999 columns and 257621 nonzeros
Model fingerprint: 0x42bc3e8e
Variable types: 43 continuous, 1956 integer (1956 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 24901 rows and 10 columns
Presolve time: 0.53s
Presolved: 60421 rows, 1989 columns, 183379 nonzeros
Variable types: 0 continuous, 1989 integer (1946 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1986 rows, 62407 columns, 185368 nonzeros


Root relaxation: objective 4.600000e+01, 1601 iterations, 0.32 seconds (0.30 work units)

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

     0     0   46.00000    0  375    9.00000   46.00000   411%     -    2s
H    0     0                      10.0000000   46.00000   360%     -    2s
H    0     0                      11.0000000   46.00000   318%     -   22s
     0     0   46.00000    0  980   11.00000   46.00000   318%     -   22s
     0     0   46.00000    0  952   11.00000   46.00000   318%     -   24s
     0     0   46.00000    0  707   11.00000   46.00000   318%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 2
  Clique: 17
  MIR: 142
  Zero half: 149
  RLT: 51
  BQP: 2

Explored 1 nodes (37085 simplex iterations) in 50.10 seconds (43.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.600000000000e+01, gap 318.1818%

Wrote result file './lp_solutions/grafo2955.38.sol'

