Trace number 452905

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
bsolo 3.0.17OPT3 0.302953 0.306104

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=37-P4=23-B.opb
MD5SUM77fa912135e48ed87b17a277e8c5de1d
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.032994
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables60
Total number of constraints9
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)100
Sum of products size (including duplicates)200
Number of different products100
Sum of products size200

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00/0.00	c bsolo beta version 3.0.17 - 27/04/2007 : 1600 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/452905-1177993831/instance-452905-1177993831.opb
0.00/0.00	c File size is 2183 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 160 Constr: 213 100/0/113 Lit: 895 Watch. Lit: 573
0.00/0.00	c Obj. Vars: 5 (3.125 % of total variables)
0.00/0.00	c Pre-processing Time: 0.002 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    160      213      895    4      765    1223      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.00/0.06	c      101    160      314     3404   10      946    1346    101  14428 0.01
0.00/0.06	c      251    160      464     8070   17     1229    1481    251  19307 0.01
0.00/0.06	c      477    160      690    14243   20     1670    1630    477  21681 0.02
0.00/0.06	c      816    160     1029    23269   22     2353    1794    816  19428 0.04
0.00/0.06	o 11	0.064
0.09/0.19	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.19	c     1174    160     1388    32615   23     3075    1233   1175  18343 0.06
0.09/0.19	c     1276    160      831    16892   20     1966    1357    618  17722 0.07
0.09/0.19	c     1526    160     1081    24290   22     2451    1493    868  17952 0.09
0.09/0.19	c     2001    160     1556    38156   24     3392    1643   1343  15511 0.13
0.09/0.19	o 9	0.192
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     2745    153     1452    32693   22     3246    1231   1239  14296 0.19
0.19/0.22	c     2846    153      932    17934   19     2200    1355    719  14089 0.20
0.19/0.22	o 5	0.218
0.19/0.29	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.29	c     3007    153     1094    21664   19     2510    1231    881  13793 0.22
0.19/0.29	c     3107    145     1194    24419   20     2703    1355    981  13747 0.23
0.19/0.29	c     3358    145     1445    30651   21     3212    1491   1232  13876 0.24
0.19/0.29	o 3	0.286
0.29/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.30	c     3829    142     1138    22349   19     2603    1229    925  13388 0.29
0.29/0.30	c     3930    127     1239    24750   19     2806    1352   1026  13277 0.30
0.29/0.30	v x1 x2 -x3 -x4 -x5 x6 x7 -x8 x9 -x10 x11 -x12 -x13 x14 -x15 x16 x17 -x18 -x19 -x20 x21 -x22 -x23 -x24 x25 x26 -x27 -x28 -x29 -x30 x41
0.29/0.30	v -x42 -x43 -x44 -x45 x31 -x32 -x33 x34 -x35 -x46 -x47 -x48 -x49 -x50 x36 x37 -x38 x39 x40 -x51 -x52 -x53 -x54 -x55 -x56 x57 x58 x59
0.29/0.30	v -x60
0.29/0.30	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.30	c   15     4020    261     5067     1329    25719   1116  13399 0.30
0.29/0.30	c Objective: 3
0.29/0.30	s OPTIMUM FOUND
0.29/0.30	c Total time: 0.3 s

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node21/watcher-452905-1177993831 -o ROOT/results/node21/solver-452905-1177993831 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452905-1177993831/instance-452905-1177993831.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 27512
/proc/meminfo: memFree=1718408/2055920 swapFree=4156288/4192956
[pid=27512] ppid=27510 vsize=11740 CPUtime=0
/proc/27512/stat : 27512 (bsolo3.0.17) R 27510 27512 27120 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 247300422 12021760 345 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27512/statm: 2935 346 290 324 0 2004 0

[startup+0.0777319 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 27512
/proc/meminfo: memFree=1718408/2055920 swapFree=4156288/4192956
[pid=27512] ppid=27510 vsize=4580 CPUtime=0.07
/proc/27512/stat : 27512 (bsolo3.0.17) R 27510 27512 27120 0 -1 4194304 558 0 0 0 7 0 0 0 18 0 1 0 247300422 4689920 527 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134551109 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27512/statm: 1145 527 311 324 0 215 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4580

[startup+0.101735 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 27512
/proc/meminfo: memFree=1718408/2055920 swapFree=4156288/4192956
[pid=27512] ppid=27510 vsize=4580 CPUtime=0.09
/proc/27512/stat : 27512 (bsolo3.0.17) R 27510 27512 27120 0 -1 4194304 558 0 0 0 9 0 0 0 18 0 1 0 247300422 4689920 527 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550782 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27512/statm: 1145 527 311 324 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4580

[startup+0.301756 s]
/proc/loadavg: 0.92 0.96 0.98 3/77 27512
/proc/meminfo: memFree=1718408/2055920 swapFree=4156288/4192956
[pid=27512] ppid=27510 vsize=4836 CPUtime=0.29
/proc/27512/stat : 27512 (bsolo3.0.17) R 27510 27512 27120 0 -1 4194304 604 0 0 0 29 0 0 0 19 0 1 0 247300422 4952064 573 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550764 0 0 4096 16384 0 0 0 17 1 0 0
/proc/27512/statm: 1209 573 311 324 0 279 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4836

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.306104
CPU time (s): 0.302953
CPU user time (s): 0.299954
CPU system time (s): 0.002999
CPU usage (%): 98.9706
Max. virtual memory (cumulated for all children) (KiB): 4836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.299954
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 608
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Tue May  1 04:30:31 UTC 2007

IDJOB= 452905
IDBENCH= 47972
IDSOLVER= 199
FILE ID= node21/452905-1177993831

PBS_JOBID= 4728214

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=37-P4=23-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452905-1177993831/instance-452905-1177993831.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-452905-1177993831 -o ROOT/results/node21/solver-452905-1177993831 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452905-1177993831/instance-452905-1177993831.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  77fa912135e48ed87b17a277e8c5de1d

RANDOM SEED= 260646564

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1718880 kB
Buffers:         37684 kB
Cached:         210296 kB
SwapCached:      15044 kB
Active:         169240 kB
Inactive:       101716 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1718880 kB
SwapTotal:     4192956 kB
SwapFree:      4156288 kB
Dirty:            6608 kB
Writeback:           0 kB
Mapped:          29804 kB
Slab:            51616 kB
Committed_AS:  2256344 kB
PageTables:       1784 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66558 MiB

End job on node21 on Tue May  1 04:30:32 UTC 2007