--- Job p0282 Start 08/22/08 01:34:35 GAMS Rev 228 Copyright (C) 1987-2008 GAMS Development. All rights reserved Licensee: Stefan Vigerske G071106/0001CB-LNX Humboldt University Berlin, Numerical Mathematics DC5918 --- Starting compilation --- p0282.gms(106) 2 Mb --- GDXin=/home/stefan/work/gams/models/LINlib/p0282.gdx --- p0282.gms(148) 3 Mb --- Starting execution: elapsed 0:00:00.006 --- p0282.gms(123) 4 Mb --- Generating MIP model m --- p0282.gms(124) 4 Mb --- 242 rows 283 columns 2,249 non-zeroes --- 282 discrete-columns --- p0282.gms(124) 4 Mb --- Executing COINCBC: elapsed 0:00:00.015 GAMS/CoinCbc 2.1 LP/MIP Solver written by J. Forrest Problem statistics: 282 columns and 241 rows. 282 variables have integrality restrictions. Calling CBC main solution routine... Coin Cbc and Clp Solver version 2.10.00, build Jun 21 2008 command line - GAMS/CBC -solve -quit Continuous objective value is 176868 - -0.00 seconds processed model has 161 rows, 202 columns (202 integer) and 1284 elements Objective coefficients multiple of 1 Cutoff increment increased from 1e-05 to 0.999 Pass 1: suminf. 1.97059 obj. 228825 iterations 18 Solution found of 564656 Before mini branch and bound, 177 integers at bound fixed and 0 continuous Mini branch and bound did not improve solution (0.02 seconds) After 0.02 seconds - Feasibility pump exiting with objective of 10 - took 0.02 seconds Integer solution of 564656 found by feasibility pump after 0 iterations and 0 nodes (0.02 seconds) Full problem 161 rows 202 columns, reduced to 31 rows 53 columns Integer solution of 263193 found by combine solutions after 0 iterations and 0 nodes (0.06 seconds) 61 added rows had average density of 36.7213 At root node, 61 cuts changed objective from 180000 to 257429 in 100 passes Cut generator 0 (Probing) - 268 row cuts (5 active), 2 column cuts in 2.472 seconds - new frequency is 1 Cut generator 1 (Gomory) - 1461 row cuts (18 active), 0 column cuts in 0.196 seconds - new frequency is 1 Cut generator 2 (Knapsack) - 619 row cuts (24 active), 0 column cuts in 0.096 seconds - new frequency is 1 Cut generator 3 (Clique) - 0 row cuts (0 active), 0 column cuts in 0.012 seconds - new frequency is -100 Cut generator 4 (MixedIntegerRounding2) - 640 row cuts (11 active), 0 column cuts in 0.084 seconds - new frequency is 1 Cut generator 5 (FlowCover) - 0 row cuts (0 active), 0 column cuts in 0.008 seconds - new frequency is -100 Cut generator 6 (TwoMirCuts) - 702 row cuts (3 active), 0 column cuts in 0.044 seconds - new frequency is -100 After 0 nodes, 1 on tree, 263193 best solution, best possible 257429 (3.73 seconds) Full problem 161 rows 202 columns, reduced to 36 rows 53 columns Integer solution of 258411 found by combine solutions after 3432 iterations and 21 nodes (4.17 seconds) Search completed - best objective 258411, took 3481 iterations and 26 nodes (4.17 seconds) Strong branching done 856 times (13793 iterations), fathomed 2 nodes and fixed 16 variables Maximum depth 7, 241 variables fixed on reduced cost Cuts at root node changed objective from 180000 to 257429 Probing was tried 118 times and created 341 cuts of which 12 were active after adding rounds of cuts (2.484 seconds) Gomory was tried 118 times and created 1506 cuts of which 21 were active after adding rounds of cuts (0.216 seconds) Knapsack was tried 118 times and created 821 cuts of which 57 were active after adding rounds of cuts (0.100 seconds) Clique was tried 100 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.012 seconds) MixedIntegerRounding2 was tried 118 times and created 792 cuts of which 50 were active after adding rounds of cuts (0.100 seconds) FlowCover was tried 100 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.008 seconds) TwoMirCuts was tried 100 times and created 702 cuts of which 3 were active after adding rounds of cuts (0.044 seconds) Result - Finished objective 258411 after 26 nodes and 3481 iterations - took 4.19 seconds (total time 4.19) Total time 4.20 Solved to optimality. MIP solution: 258411 (26 nodes, 4.2 seconds) Best possible: 258411 Absolute gap: 0 (absolute tolerance optca: 0) Relative gap: 0 (relative tolerance optcr: 0) --- Restarting execution --- p0282.gms(124) 0 Mb --- Reading solution for model m *** Status: Normal completion --- Job p0282.gms Stop 08/22/08 01:34:39 elapsed 0:00:04.249