Trace number 2098559

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 ACSAT 0.755884 0.788186

DiagnosticValue
CHECKS2093
NODES26

General information on the benchmark

Namecsp/queens/
normalized-queens-12.xml
MD5SUM7d616395bef7a91c9fb9079904283d52
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables12
Number of constraints66
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension66
Global constraints used (with number of constraints)

Solver Data 

0.02/0.09	
0.02/0.09	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.24	   configuration
0.18/0.24	     name=mac.xml
0.18/0.28	   
0.18/0.28	   instance
0.18/0.28	     name=HOME/instance-2098559-1247416101.xml
0.28/0.31	   
0.28/0.31	   domains being loaded...
0.28/0.32	   
0.28/0.32	   variables being loaded...
0.28/0.35	     nbVariables=12  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=144
0.28/0.35	       =>  wckTime=0.101  cpuTime=0.09  mem=7M892
0.28/0.35	   
0.28/0.35	   predicates being loaded...
0.38/0.41	   
0.38/0.41	   constraints being loaded...
0.48/0.55	     nbConstraints=68  nbGlobalConstraints=2  nbConvertedConstraints=66  nbConvertConstraintsChecks=1728
0.48/0.55	     nbExtensionStructures=12  nbSharedExtensionStructures=54  nbConflictsStructures=12  nbSharedConflictsStructures=54
0.48/0.55	     nbSharedBinaryRepresentations=176  minDegree=13  maxDegree=13  minArity=2  avgArity=2.29  maxArity=12
0.48/0.55	     nbGenerators=1  nbFusions=1  symmetryWckTime=0.04  symmetryCpuTime=0.02  nbCliques=1
0.48/0.55	       =>  wckTime=0.306  cpuTime=0.24  mem=14M825
0.57/0.60	   
0.57/0.60	   solver IterativeSystematicSolver being built... 
0.57/0.66	   
0.57/0.66	   INFO : Forward propagation technique limited 
0.67/0.72	       =>  wckTime=0.473  cpuTime=0.34  mem=19M491
0.67/0.72	   
0.67/0.72	   preprocessing
0.67/0.72	     nbConstraintChecks=24  nbPropagations=13  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2
0.67/0.72	     nbRemovedTuples=65  detectedInconsistency=no
0.67/0.72	       =>  wckTime=0.0030  cpuTime=0.0  mem=19M491
0.67/0.75	   
0.67/0.75	   search
0.67/0.75	     run=0  nbConstraintChecks=2069  minDepth=4  maxDepth=12  nbPropagations=172  nbRevisions=588
0.67/0.75	     nbUselessRevisions=399  nbAssignments=26  nbFailedAssignments=7  nbBacktracks=7  nbVisitedNodes=39
0.67/0.75	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=7  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.67/0.75	     nbREliminables=0  nbIEliminables=6.72  nbDEliminables=0  nbPEliminables=0
0.67/0.75	       =>  wckTime=0.032  cpuTime=0.02  mem=20M532
0.67/0.75	   
0.67/0.75	   global
0.67/0.75	     nbConstraintChecks=2093  nbPropagations=185  nbRevisions=590  nbUselessRevisions=399  nbRestartNogoods=0
0.67/0.75	     solvingWckTime=0.034  solvingCpuTime=0.02  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.67/0.75	     firstSolutionCpuTime=0.36  globalCpuTime=0.4
0.67/0.75	       =>  wckTime=0.509  cpuTime=0.36  mem=20M532
0.67/0.75	   
0.67/0.75	s SATISFIABLE
0.67/0.75	v 2 4 7 9 11 5 10 1 6 8 3 12 
0.67/0.75	d NODES 26
0.67/0.75	d CHECKS 2093
0.67/0.76	   
0.67/0.76	   totalWckTime=0.575  totalCpuTime=0.41

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2098559-1247416101/watcher-2098559-1247416101 -o /tmp/evaluation-result-2098559-1247416101/solver-2098559-1247416101 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2098559-1247416101.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.53 2.16 2.09 4/80 1140
/proc/meminfo: memFree=1570324/2055920 swapFree=4192812/4192956
[pid=1140] ppid=1138 vsize=18576 CPUtime=0
/proc/1140/stat : 1140 (runsolver) R 1138 1140 1025 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 28674828 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 256364834087 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/1140/statm: 4644 284 249 26 0 2626 0

[startup+0.0329941 s]
/proc/loadavg: 2.53 2.16 2.09 4/80 1140
/proc/meminfo: memFree=1570324/2055920 swapFree=4192812/4192956
[pid=1140] ppid=1138 vsize=861936 CPUtime=0.02
/proc/1140/stat : 1140 (java) S 1138 1140 1025 0 -1 0 2061 0 1 0 1 1 0 0 21 0 5 0 28674828 882622464 1720 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/1140/statm: 215484 1720 794 9 0 210399 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861936

[startup+0.103001 s]
/proc/loadavg: 2.53 2.16 2.09 4/80 1140
/proc/meminfo: memFree=1570324/2055920 swapFree=4192812/4192956
[pid=1140] ppid=1138 vsize=865980 CPUtime=0.09
/proc/1140/stat : 1140 (java) S 1138 1140 1025 0 -1 0 3746 0 1 0 7 2 0 0 21 0 9 0 28674828 886763520 3212 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1140/statm: 216495 3212 1700 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.302026 s]
/proc/loadavg: 2.53 2.16 2.09 4/80 1140
/proc/meminfo: memFree=1570324/2055920 swapFree=4192812/4192956
[pid=1140] ppid=1138 vsize=866380 CPUtime=0.28
/proc/1140/stat : 1140 (java) S 1138 1140 1025 0 -1 0 5995 0 1 0 24 4 0 0 21 0 9 0 28674828 887173120 5361 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1140/statm: 216595 5361 1986 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701065 s]
/proc/loadavg: 2.53 2.16 2.09 4/80 1140
/proc/meminfo: memFree=1570324/2055920 swapFree=4192812/4192956
[pid=1140] ppid=1138 vsize=867040 CPUtime=0.67
/proc/1140/stat : 1140 (java) S 1138 1140 1025 0 -1 0 13771 276 1 0 60 7 0 0 21 0 9 0 28674828 887848960 8592 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/1140/statm: 216760 8592 2651 9 0 211196 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867040

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

Child status: 0
Real time (s): 0.788186
CPU time (s): 0.755884
CPU user time (s): 0.6529
CPU system time (s): 0.102984
CPU usage (%): 95.9017
Max. virtual memory (cumulated for all children) (KiB): 867040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.6529
system time used= 0.102984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15829
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= 708
involuntary context switches= 778

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node90 at 2009-07-12 18:28:22
IDJOB=2098559
IDBENCH=58733
IDSOLVER=773
FILE ID=node90/2098559-1247416101
PBS_JOBID= 9510732
Free space on /tmp= 66296 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/queens/normalized-queens-12.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= BIN/runsolver --timestamp -w /tmp/evaluation-result-2098559-1247416101/watcher-2098559-1247416101 -o /tmp/evaluation-result-2098559-1247416101/solver-2098559-1247416101 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2098559-1247416101.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 7d616395bef7a91c9fb9079904283d52
RANDOM SEED=2054081646

node90.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		: 3000.212
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		: 3000.212
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1570740 kB
Buffers:         68956 kB
Cached:         240920 kB
SwapCached:          0 kB
Active:         267560 kB
Inactive:       151140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1570740 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5012 kB
Writeback:           0 kB
Mapped:         123096 kB
Slab:            51608 kB
Committed_AS:  1019124 kB
PageTables:       2012 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= 66296 MiB
End job on node90 at 2009-07-12 18:28:22