Trace number 2098560

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 ESACSAT 0.889863 0.946002

DiagnosticValue
CHECKS3733
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 

0.01/0.09	
0.01/0.09	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.24	   configuration
0.18/0.24	     name=esac.xml
0.29/0.32	   
0.29/0.32	   instance
0.29/0.32	     name=HOME/instance-2098560-1247416101.xml
0.29/0.36	   
0.29/0.36	   domains being loaded...
0.29/0.37	   
0.29/0.37	   variables being loaded...
0.29/0.39	     nbVariables=12  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=144
0.29/0.39	       =>  wckTime=0.148  cpuTime=0.11  mem=7M892
0.29/0.39	   
0.29/0.39	   predicates being loaded...
0.39/0.46	   
0.39/0.46	   constraints being loaded...
0.59/0.64	     nbConstraints=68  nbGlobalConstraints=2  nbConvertedConstraints=66  nbConvertConstraintsChecks=1728
0.59/0.64	     nbExtensionStructures=12  nbSharedExtensionStructures=54  nbConflictsStructures=12  nbSharedConflictsStructures=54
0.59/0.64	     nbSharedBinaryRepresentations=176  minDegree=13  maxDegree=13  minArity=2  avgArity=2.29  maxArity=12
0.59/0.64	     nbGenerators=1  nbFusions=1  symmetryWckTime=0.043  symmetryCpuTime=0.03  nbCliques=1
0.59/0.65	       =>  wckTime=0.399  cpuTime=0.29  mem=14M825
0.59/0.69	   
0.59/0.70	   solver IterativeSystematicSolver being built... 
0.67/0.77	   
0.67/0.77	   INFO : Forward propagation technique limited 
0.78/0.83	       =>  wckTime=0.586  cpuTime=0.4  mem=19M477
0.78/0.86	   
0.78/0.86	   preprocessing
0.78/0.86	     nbConstraintChecks=1664  nbPropagations=166  nbRevisions=308  nbUselessRevisions=142  nbSingletonTests=17
0.78/0.86	     nbEffectiveSingletonTests=0  nbACRemovals=2  nbFoundSingletons=0  nbRemovedValues=2  nbRemovedTuples=65
0.78/0.86	     detectedInconsistency=no
0.78/0.86	       =>  wckTime=0.022  cpuTime=0.03  mem=20M452
0.78/0.88	   
0.78/0.88	   search
0.78/0.88	     run=0  nbConstraintChecks=2069  minDepth=4  maxDepth=12  nbPropagations=325  nbRevisions=894
0.78/0.88	     nbUselessRevisions=541  nbAssignments=26  nbFailedAssignments=7  nbBacktracks=7  nbVisitedNodes=39
0.78/0.88	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=7  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.78/0.88	     nbREliminables=0  nbIEliminables=6.72  nbDEliminables=0  nbPEliminables=0
0.78/0.88	       =>  wckTime=0.047  cpuTime=0.04  mem=21M427
0.78/0.88	   
0.78/0.88	   global
0.78/0.88	     nbConstraintChecks=3733  nbPropagations=491  nbRevisions=1202  nbUselessRevisions=683  nbRestartNogoods=0
0.78/0.88	     solvingWckTime=0.05  solvingCpuTime=0.05  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.78/0.88	     firstSolutionCpuTime=0.44  globalCpuTime=0.5
0.78/0.88	       =>  wckTime=0.637  cpuTime=0.45  mem=21M427
0.78/0.88	   
0.78/0.88	s SATISFIABLE
0.78/0.88	v 2 4 7 9 11 5 10 1 6 8 3 12 
0.78/0.88	d NODES 26
0.78/0.88	d CHECKS 3733
0.78/0.88	   
0.78/0.88	   totalWckTime=0.695  totalCpuTime=0.5

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-2098560-1247416101/watcher-2098560-1247416101 -o /tmp/evaluation-result-2098560-1247416101/solver-2098560-1247416101 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-2098560-1247416101.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: 1.84 1.97 1.98 3/80 28993
/proc/meminfo: memFree=1547824/2055920 swapFree=4192812/4192956
[pid=28993] ppid=28991 vsize=1616 CPUtime=0
/proc/28993/stat : 28993 (java) D 28991 28993 28956 0 -1 0 180 0 0 0 0 0 0 0 18 0 1 0 28676271 1654784 148 996147200 134512640 134550932 4294956128 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099937270 0 0 17 0 0 0
/proc/28993/statm: 404 148 122 9 0 46 0

[startup+0.029525 s]
/proc/loadavg: 1.84 1.97 1.98 3/80 28993
/proc/meminfo: memFree=1547824/2055920 swapFree=4192812/4192956
[pid=28993] ppid=28991 vsize=861936 CPUtime=0.01
/proc/28993/stat : 28993 (java) S 28991 28993 28956 0 -1 0 1876 0 1 0 0 1 0 0 18 0 5 0 28676271 882622464 1561 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/28993/statm: 215484 1561 686 9 0 210399 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 861936

[startup+0.101156 s]
/proc/loadavg: 1.84 1.97 1.98 3/80 28993
/proc/meminfo: memFree=1547824/2055920 swapFree=4192812/4192956
[pid=28993] ppid=28991 vsize=865984 CPUtime=0.08
/proc/28993/stat : 28993 (java) S 28991 28993 28956 0 -1 0 3730 0 1 0 6 2 0 0 18 0 9 0 28676271 886767616 3196 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28993/statm: 216496 3196 1690 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.301163 s]
/proc/loadavg: 1.84 1.97 1.98 3/80 28993
/proc/meminfo: memFree=1547824/2055920 swapFree=4192812/4192956
[pid=28993] ppid=28991 vsize=866144 CPUtime=0.29
/proc/28993/stat : 28993 (java) S 28991 28993 28956 0 -1 0 5660 0 1 0 25 4 0 0 18 0 9 0 28676271 886931456 5063 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28993/statm: 216536 5063 1927 9 0 211014 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866144

[startup+0.701194 s]
/proc/loadavg: 1.84 1.97 1.98 3/80 28993
/proc/meminfo: memFree=1547824/2055920 swapFree=4192812/4192956
[pid=28993] ppid=28991 vsize=867516 CPUtime=0.67
/proc/28993/stat : 28993 (java) S 28991 28993 28956 0 -1 0 11246 276 1 0 60 7 0 0 18 0 9 0 28676271 888336384 8312 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28993/statm: 216879 8312 2650 9 0 211315 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867516

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

[startup+0.901212 s]
/proc/loadavg: 1.84 1.97 1.98 3/80 28993
/proc/meminfo: memFree=1547824/2055920 swapFree=4192812/4192956
[pid=28993] ppid=28991 vsize=867516 CPUtime=0.87
/proc/28993/stat : 28993 (java) S 28991 28993 28956 0 -1 0 15604 276 1 0 78 9 0 0 18 0 9 0 28676271 888336384 10412 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28993/statm: 216879 10412 2655 9 0 211315 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 867516

Child status: 0
Real time (s): 0.946002
CPU time (s): 0.889863
CPU user time (s): 0.78288
CPU system time (s): 0.106983
CPU usage (%): 94.0657
Max. virtual memory (cumulated for all children) (KiB): 867516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78288
system time used= 0.106983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15907
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= 493
involuntary context switches= 539

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node31 at 2009-07-12 18:28:21
IDJOB=2098560
IDBENCH=58733
IDSOLVER=774
FILE ID=node31/2098560-1247416101
PBS_JOBID= 9510734
Free space on /tmp= 66372 MiB

SOLVER NAME= Abscon 112v4 ESAC
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 esac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2098560-1247416101/watcher-2098560-1247416101 -o /tmp/evaluation-result-2098560-1247416101/solver-2098560-1247416101 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-2098560-1247416101.xml

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

MD5SUM BENCH= 7d616395bef7a91c9fb9079904283d52
RANDOM SEED=2045236081

node31.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		: 3000.216
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	: 5931.00
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		: 3000.216
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:       1548304 kB
Buffers:         40500 kB
Cached:         166764 kB
SwapCached:          0 kB
Active:         369412 kB
Inactive:        84488 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1548304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2208 kB
Writeback:           0 kB
Mapped:         267096 kB
Slab:            38360 kB
Committed_AS:   990580 kB
PageTables:       2348 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= 66368 MiB
End job on node31 at 2009-07-12 18:28:23