Trace number 2093439

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 0.775882 0.784867

DiagnosticValue
CHECKS800
NODES25

General information on the benchmark

Namecsp/coloring/
normalized-queens-5-5-5-ext.xml
MD5SUMa5f92f8e20030303eecd19c901780c00
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables25
Number of constraints160
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension160
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.02/0.08	
0.02/0.08	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=mac.xml
0.19/0.28	   
0.19/0.28	   instance
0.19/0.28	     name=HOME/instance-2093439-1247401324.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=25  nbDomainTypes=1  minDomainSize=5  maxDomainSize=5  nbTotalValues=125
0.28/0.35	       =>  wckTime=0.109  cpuTime=0.09  mem=7M892
0.28/0.35	   
0.28/0.35	   relations being loaded...
0.28/0.35	   
0.28/0.35	   constraints being loaded...
0.48/0.54	     nbConstraints=167  nbRelationTypes=1  nbGlobalConstraints=7  nbExtensionStructures=2
0.48/0.54	     nbSharedExtensionStructures=158  nbConflictsStructures=3  nbSharedConflictsStructures=158
0.48/0.55	     nbSharedBinaryRepresentations=5  minDegree=14  maxDegree=17  minArity=2  avgArity=2.3  maxArity=20  nbGenerators=2
0.48/0.55	     nbFusions=2  symmetryWckTime=0.104  symmetryCpuTime=0.06  nbCliques=5
0.48/0.55	       =>  wckTime=0.304  cpuTime=0.22  mem=13M780
0.48/0.59	   
0.48/0.59	   solver IterativeSystematicSolver being built... 
0.58/0.66	   
0.58/0.66	   INFO : Forward propagation technique limited 
0.68/0.73	       =>  wckTime=0.488  cpuTime=0.34  mem=19M534
0.68/0.73	   
0.68/0.73	   preprocessing
0.68/0.73	     nbConstraintChecks=20  nbPropagations=27  nbRevisions=4  nbUselessRevisions=0  nbRemovedValues=4
0.68/0.73	     nbRemovedTuples=10  detectedInconsistency=no
0.68/0.73	       =>  wckTime=0.0040  cpuTime=0.0  mem=20M517
0.68/0.76	   
0.68/0.76	   search
0.68/0.76	     run=0  nbConstraintChecks=780  minDepth=26  maxDepth=25  nbPropagations=116  nbRevisions=366
0.68/0.76	     nbUselessRevisions=284  nbAssignments=25  nbFailedAssignments=0  nbBacktracks=0  nbVisitedNodes=26
0.68/0.76	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.68/0.77	     nbREliminables=0.75  nbIEliminables=19.67  nbDEliminables=0  nbPEliminables=0
0.68/0.77	       =>  wckTime=0.032  cpuTime=0.03  mem=21M493
0.68/0.77	   
0.68/0.77	   global
0.68/0.77	     nbConstraintChecks=800  nbPropagations=143  nbRevisions=370  nbUselessRevisions=284  nbRestartNogoods=0
0.68/0.77	     solvingWckTime=0.036  solvingCpuTime=0.03  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.68/0.77	     firstSolutionCpuTime=0.36  globalCpuTime=0.41
0.68/0.77	       =>  wckTime=0.525  cpuTime=0.37  mem=21M493
0.68/0.77	   
0.68/0.77	s SATISFIABLE
0.68/0.77	v 2 0 3 1 4 1 4 2 0 3 0 3 1 4 2 4 2 0 3 1 3 1 4 2 0 
0.68/0.77	d NODES 25
0.68/0.77	d CHECKS 800
0.68/0.77	   
0.68/0.77	   totalWckTime=0.592  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-2093439-1247401324/watcher-2093439-1247401324 -o /tmp/evaluation-result-2093439-1247401324/solver-2093439-1247401324 -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-2093439-1247401324.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: 1.92 0.95 0.39 4/81 26321
/proc/meminfo: memFree=1792760/2055920 swapFree=4192812/4192956
[pid=26321] ppid=26319 vsize=324 CPUtime=0
/proc/26321/stat : 26321 (java) R 26319 26321 26046 0 -1 0 224 0 0 0 0 0 0 0 18 0 1 0 27197245 331776 44 996147200 134512640 134550932 4294955968 18446744073709551615 1819428 0 0 4096 0 0 0 0 17 0 0 0
/proc/26321/statm: 81 44 33 9 0 6 0

[startup+0.024323 s]
/proc/loadavg: 1.92 0.95 0.39 4/81 26321
/proc/meminfo: memFree=1792760/2055920 swapFree=4192812/4192956
[pid=26321] ppid=26319 vsize=861936 CPUtime=0.02
/proc/26321/stat : 26321 (java) S 26319 26321 26046 0 -1 0 1882 0 1 0 1 1 0 0 18 0 5 0 27197245 882622464 1566 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/26321/statm: 215484 1570 693 9 0 210399 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861936

[startup+0.102368 s]
/proc/loadavg: 1.92 0.95 0.39 4/81 26321
/proc/meminfo: memFree=1792760/2055920 swapFree=4192812/4192956
[pid=26321] ppid=26319 vsize=865980 CPUtime=0.1
/proc/26321/stat : 26321 (java) S 26319 26321 26046 0 -1 0 3805 0 1 0 8 2 0 0 18 0 9 0 27197245 886763520 3256 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/26321/statm: 216495 3256 1718 9 0 210980 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 865980

[startup+0.3024 s]
/proc/loadavg: 1.92 0.95 0.39 4/81 26321
/proc/meminfo: memFree=1792760/2055920 swapFree=4192812/4192956
[pid=26321] ppid=26319 vsize=866380 CPUtime=0.28
/proc/26321/stat : 26321 (java) S 26319 26321 26046 0 -1 0 5996 0 1 0 25 3 0 0 18 0 9 0 27197245 887173120 5362 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/26321/statm: 216595 5362 1986 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.702452 s]
/proc/loadavg: 1.92 0.95 0.39 4/81 26321
/proc/meminfo: memFree=1792760/2055920 swapFree=4192812/4192956
[pid=26321] ppid=26319 vsize=867024 CPUtime=0.68
/proc/26321/stat : 26321 (java) S 26319 26321 26046 0 -1 0 13378 286 1 0 61 7 0 0 18 0 9 0 27197245 887832576 8610 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/26321/statm: 216756 8610 2651 9 0 211192 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867024

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

Child status: 0
Real time (s): 0.784867
CPU time (s): 0.775882
CPU user time (s): 0.683896
CPU system time (s): 0.091986
CPU usage (%): 98.8552
Max. virtual memory (cumulated for all children) (KiB): 867024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.683896
system time used= 0.091986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15525
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= 726
involuntary context switches= 785

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node54 at 2009-07-12 14:22:04
IDJOB=2093439
IDBENCH=53573
IDSOLVER=773
FILE ID=node54/2093439-1247401324
PBS_JOBID= 9510538
Free space on /tmp= 66412 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/coloring/normalized-queens-5-5-5-ext.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-2093439-1247401324/watcher-2093439-1247401324 -o /tmp/evaluation-result-2093439-1247401324/solver-2093439-1247401324 -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-2093439-1247401324.xml

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

MD5SUM BENCH= a5f92f8e20030303eecd19c901780c00
RANDOM SEED=897802561

node54.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		: 3000.232
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:       1793240 kB
Buffers:         32176 kB
Cached:         121776 kB
SwapCached:          0 kB
Active:         136232 kB
Inactive:        73680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1793240 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2048 kB
Writeback:           0 kB
Mapped:          76340 kB
Slab:            37952 kB
Committed_AS:   994808 kB
PageTables:       1848 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66408 MiB
End job on node54 at 2009-07-12 14:22:05