--- Job gesa2 Start 07/17/08 19:29:48 GAMS Rev 227 Copyright (C) 1987-2008 GAMS Development. All rights reserved Licensee: Stefan Vigerske G071106/0001CB-LNX Humboldt University Berlin, Numerical Mathematics DC5918 --- Starting compilation --- gesa2.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/gesa2.gdx --- gesa2.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.033 --- gesa2.gms(123) 4 Mb --- Generating MIP model m --- gesa2.gms(124) 4 Mb --- 1,393 rows 1,225 columns 6,001 non-zeroes --- 408 discrete-columns --- gesa2.gms(124) 4 Mb --- Executing Cbc: elapsed 0:00:00.062 GAMS/Cbc 2.1 LP/MIP Solver written by J. Forrest Reading parameter(s) from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" >> threads 2 Finished reading from "/home/stefan/work/gams/benchmarks/LINLib.MIP/cbc.op2" Problem statistics: 1224 columns and 1392 rows. 408 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.10.00, build Jul 15 2008 command line - GAMS/CBC -threads 2 -solve -quit threads was changed from 0 to 2 Continuous objective value is 2.54765e+07 - 0.02 seconds 0 fixed, 29 tightened bounds, 60 strengthened rows, 0 substitutions 0 fixed, 3 tightened bounds, 19 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions 0 fixed, 0 tightened bounds, 11 strengthened rows, 0 substitutions processed model has 1344 rows, 1176 columns (408 integer) and 4968 elements Pass 1: suminf. 6.30421 obj. 2.58828e+07 iterations 93 Pass 2: suminf. 5.34988 obj. 2.60076e+07 iterations 17 Solution found of 2.60076e+07 Full problem 1345 rows 1176 columns, reduced to 678 rows 578 columns - too large Mini branch and bound could not fix general integers No solution found this major pass Before mini branch and bound, 353 integers at bound fixed and 585 continuous Full problem 1344 rows 1176 columns, reduced to 195 rows 212 columns Mini branch and bound improved solution from 1e+50 to 2.59101e+07 (0.13 seconds) Freeing continuous variables gives a solution of 2.59101e+07 Round again with cutoff of 2.58683e+07 Reduced cost fixing fixed 8 variables on major pass 2 Pass 3: suminf. 6.43868 obj. 2.58683e+07 iterations 97 Pass 4: suminf. 4.79860 obj. 2.58683e+07 iterations 11 Solution found of 2.58683e+07 Mini branch and bound could not fix general integers No solution found this major pass Before mini branch and bound, 353 integers at bound fixed and 586 continuous Full problem 1344 rows 1176 columns, reduced to 194 rows 211 columns Mini branch and bound did not improve solution (0.25 seconds) After 0.25 seconds - Feasibility pump exiting with objective of 2.59101e+07 - took 0.24 seconds Integer solution of 2.59101e+07 found by feasibility pump after 0 iterations and 0 nodes (0.25 seconds) 69 added rows had average density of 25.2754 At root node, 69 cuts changed objective from 2.54925e+07 to 2.5768e+07 in 21 passes Cut generator 0 (Probing) - 30 row cuts (14 active), 63 column cuts in 0.172 seconds - new frequency is 1 Cut generator 1 (Gomory) - 20 row cuts (6 active), 0 column cuts in 0.028 seconds - new frequency is -100 Cut generator 2 (Knapsack) - 20 row cuts (0 active), 0 column cuts in 0.072 seconds - new frequency is -100 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in 0.012 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 135 row cuts (12 active), 0 column cuts in 0.028 seconds - new frequency is 1 Cut generator 5 (FlowCover) - 1 row cuts (0 active), 0 column cuts in 0.068 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 277 row cuts (32 active), 0 column cuts in 0.056 seconds - new frequency is -100 After 0 nodes, 1 on tree, 2.59101e+07 best solution, best possible 2.5768e+07 (0.91 seconds) Cbc0004I Integer solution of 2.58149e+07 found after 1809 iterations and 131 nodes (4.82 seconds) Cbc0004I Integer solution of 2.58159e+07 found after 1814 iterations and 133 nodes (4.83 seconds) Cbc0004I Integer solution of 2.57975e+07 found after 1860 iterations and 145 nodes (4.95 seconds) Cbc0004I Integer solution of 2.57977e+07 found after 1861 iterations and 147 nodes (4.96 seconds) Cbc0004I Integer solution of 2.57799e+07 found after 2011 iterations and 173 nodes (5.20 seconds) Solved to optimality. wallclocktime: 3.6024 used seconds: 5.83 MIP solution: 25779856.37 (246 nodes, 5.83 seconds) Best possible: 25779856.37 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- gesa2.gms(124) 0 Mb --- Reading solution for model m --- gesa2.gms(124) 3 Mb *** Status: Normal completion --- Job gesa2.gms Stop 07/17/08 19:29:52 elapsed 0:00:03.698