Trace number 1084034

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerCPU timeWall clock time
Abscon 112v4 ACUNSAT 0.975851 1.01008

DiagnosticValue
CHECKS30
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-5.xml
MD5SUM2124f7dcb670dc74e0b7cb5a550c9bbd
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.021995
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints330
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension0
Number of constraints which are defined in intension330
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04/0.09	
0.04/0.09	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.24	   configuration
0.18/0.24	     name=mac.xml
0.27/0.31	   
0.27/0.31	   instance
0.27/0.31	     name=HOME/instance-1084034-1215229709.xml
0.27/0.35	   
0.27/0.35	   domains being loaded...
0.27/0.36	   
0.27/0.36	   variables being loaded...
0.27/0.38	     nbVariables=30  nbDomainTypes=1  minDomainSize=15  maxDomainSize=15  nbTotalValues=450
0.27/0.38	       =>  wckTime=0.142  cpuTime=0.11  mem=7M919
0.27/0.38	   
0.27/0.38	   predicates being loaded...
0.38/0.45	   
0.38/0.45	   constraints being loaded...
0.76/0.80	     nbConstraints=332  nbGlobalConstraints=2  nbConvertedConstraints=330  nbConvertConstraintsChecks=3600
0.76/0.80	     nbExtensionStructures=16  nbSharedExtensionStructures=314  nbConflictsStructures=16
0.76/0.80	     nbSharedConflictsStructures=314  nbSharedBinaryRepresentations=311  minDegree=15  maxDegree=31  minArity=2
0.76/0.80	     avgArity=2.12  maxArity=28  nbGenerators=1  nbFusions=1  symmetryWckTime=0.073  symmetryCpuTime=0.04  nbCliques=1
0.76/0.80	       =>  wckTime=0.561  cpuTime=0.39  mem=15M811
0.76/0.85	   
0.76/0.85	   solver IterativeSystematicSolver being built... 
0.86/0.92	   
0.86/0.92	   INFO : Forward propagation technique limited 
0.86/0.98	       =>  wckTime=0.738  cpuTime=0.49  mem=19M864
0.86/0.98	   
0.86/0.98	   preprocessing
0.86/0.98	     nbConstraintChecks=30  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2
0.86/0.98	     nbRemovedTuples=104  detectedInconsistency=yes
0.86/0.98	       =>  wckTime=0.0030  cpuTime=0.01  mem=19M864
0.86/0.99	   
0.86/0.99	   global
0.86/0.99	     nbConstraintChecks=30  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.86/0.99	     solvingWckTime=0.0060  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.86/0.99	     globalCpuTime=0.55
0.86/0.99	       =>  wckTime=0.746  cpuTime=0.5  mem=20M986
0.86/0.99	   
0.86/0.99	s UNSATISFIABLE
0.86/0.99	d NODES 0
0.86/0.99	d CHECKS 30
0.86/0.99	   
0.86/0.99	   totalWckTime=0.803  totalCpuTime=0.55

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084034-1215229709/watcher-1084034-1215229709 -o /tmp/evaluation-result-1084034-1215229709/solver-1084034-1215229709 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-1084034-1215229709.xml 

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): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 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: 1.91 1.97 1.99 4/80 27736
/proc/meminfo: memFree=1593256/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=18572 CPUtime=0
/proc/27736/stat : 27736 (runsolver) R 27734 27736 24760 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 160782319 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 212218735911 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/27736/statm: 4643 292 257 25 0 2626 0

[startup+0.0626581 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 27736
/proc/meminfo: memFree=1593256/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=863920 CPUtime=0.04
/proc/27736/stat : 27736 (java) S 27734 27736 24760 0 -1 0 2674 0 1 0 2 2 0 0 18 0 9 0 160782319 884654080 2238 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27736/statm: 215980 2238 1064 9 0 210937 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 863920

[startup+0.10266 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 27736
/proc/meminfo: memFree=1593256/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=866908 CPUtime=0.07
/proc/27736/stat : 27736 (java) S 27734 27736 24760 0 -1 0 3715 0 1 0 5 2 0 0 18 0 9 0 160782319 887713792 3179 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27736/statm: 216727 3179 1684 9 0 211282 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 866908

[startup+0.302682 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 27736
/proc/meminfo: memFree=1593256/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=867220 CPUtime=0.27
/proc/27736/stat : 27736 (java) S 27734 27736 24760 0 -1 0 5623 0 1 0 24 3 0 0 18 0 9 0 160782319 888033280 5037 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27736/statm: 216805 5037 1903 9 0 211353 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 867220

[startup+0.701724 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 27736
/proc/meminfo: memFree=1593256/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=868116 CPUtime=0.66
/proc/27736/stat : 27736 (java) S 27734 27736 24760 0 -1 0 8027 0 1 0 60 6 0 0 18 0 9 0 160782319 888950784 7385 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27736/statm: 217029 7385 2010 9 0 211535 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 868116

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

[startup+0.901745 s]
/proc/loadavg: 1.91 1.97 1.99 4/80 27736
/proc/meminfo: memFree=1593256/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=868896 CPUtime=0.86
/proc/27736/stat : 27736 (java) S 27734 27736 24760 0 -1 0 12941 301 1 0 77 9 0 0 18 0 9 0 160782319 889749504 8948 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27736/statm: 217224 8948 2628 9 0 211730 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 868896

[startup+1.00242 s]
/proc/loadavg: 1.91 1.97 1.99 3/82 27749
/proc/meminfo: memFree=1581584/2055920 swapFree=4181096/4192956
[pid=27736] ppid=27734 vsize=0 CPUtime=0.95
/proc/27736/stat : 27736 (java) Z 27734 27736 24760 0 -1 12 15982 301 1 0 84 11 0 0 16 0 2 0 160782319 0 0 996147200 0 0 0 0 0 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27736/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.95
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 1.01008
CPU time (s): 0.975851
CPU user time (s): 0.85387
CPU system time (s): 0.121981
CPU usage (%): 96.6111
Max. virtual memory (cumulated for all children) (KiB): 868896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.85387
system time used= 0.121981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16283
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 630
involuntary context switches= 640

runsolver used 0.004999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node46 at 2008-07-05 05:48:30
IDJOB=1084034
IDBENCH=57520
IDSOLVER=363
FILE ID=node46/1084034-1215229709
PBS_JOBID= 7881802
Free space on /tmp= 66204 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-5.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084034-1215229709/watcher-1084034-1215229709 -o /tmp/evaluation-result-1084034-1215229709/solver-1084034-1215229709 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-1084034-1215229709.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2124f7dcb670dc74e0b7cb5a550c9bbd
RANDOM SEED=524803339

node46.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.238
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		: 3000.238
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:       1593672 kB
Buffers:         55248 kB
Cached:         227852 kB
SwapCached:       6172 kB
Active:         299740 kB
Inactive:       107596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1593672 kB
SwapTotal:     4192956 kB
SwapFree:      4181096 kB
Dirty:            2044 kB
Writeback:           0 kB
Mapped:         138280 kB
Slab:            40156 kB
Committed_AS:  1218148 kB
PageTables:       1788 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264992 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66200 MiB
End job on node46 at 2008-07-05 05:48:31