Trace number 2097612

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 0.701892 0.743345

DiagnosticValue
CHECKS106
NODES0

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-3.xml
MD5SUM106804da3e01f843ca5d9120fa0a4072
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 benchmark0.016996
Satisfiable
(Un)Satisfiability was proved
Number of variables6
Number of constraints18
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension18
Global constraints used (with number of constraints)

Solver Data 

0.00/0.09	
0.00/0.09	Abscon 112 (May, 2008)
0.19/0.26	
0.19/0.26	   configuration
0.19/0.26	     name=esac.xml
0.19/0.30	   
0.19/0.30	   instance
0.19/0.30	     name=HOME/instance-2097612-1247413613.xml
0.28/0.33	   
0.28/0.33	   domains being loaded...
0.28/0.34	   
0.28/0.34	   variables being loaded...
0.28/0.37	     nbVariables=6  nbDomainTypes=1  minDomainSize=6  maxDomainSize=6  nbTotalValues=36
0.28/0.37	       =>  wckTime=0.104  cpuTime=0.09  mem=7M892
0.28/0.37	   
0.28/0.37	   predicates being loaded...
0.38/0.43	   
0.38/0.43	   constraints being loaded...
0.47/0.50	     nbConstraints=16  nbGlobalConstraints=1  nbMergedConstraints=3  nbConvertedConstraints=15
0.47/0.50	     nbConvertConstraintsChecks=144  nbExtensionStructures=4  nbSharedExtensionStructures=11  nbConflictsStructures=4
0.47/0.50	     nbSharedConflictsStructures=11  nbSharedBinaryRepresentations=35  minDegree=6  maxDegree=6  minArity=2
0.47/0.50	     avgArity=2.25  maxArity=6  nbGenerators=0  nbFusions=0  symmetryWckTime=0.029  symmetryCpuTime=0.02  nbCliques=1
0.47/0.50	       =>  wckTime=0.239  cpuTime=0.2  mem=13M796
0.47/0.55	   
0.47/0.55	   solver IterativeSystematicSolver being built... 
0.57/0.62	   
0.57/0.62	   INFO : Forward propagation technique limited 
0.57/0.69	       =>  wckTime=0.426  cpuTime=0.31  mem=19M407
0.57/0.69	   
0.57/0.70	   preprocessing
0.57/0.70	     nbConstraintChecks=106  nbPropagations=21  nbRevisions=41  nbUselessRevisions=30  nbSingletonTests=6
0.57/0.70	     nbEffectiveSingletonTests=0  nbACRemovals=18  nbFoundSingletons=0  firstSolutionCpuTime=0.31  nbRemovedValues=18
0.57/0.70	     detectedInconsistency=no
0.57/0.70	       =>  wckTime=0.0060  cpuTime=0.0  mem=20M388
0.67/0.70	   
0.67/0.70	   global
0.67/0.70	     nbConstraintChecks=106  nbPropagations=21  nbRevisions=41  nbUselessRevisions=30  nbRestartNogoods=0
0.67/0.70	     solvingWckTime=0.01  solvingCpuTime=0.01  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.67/0.70	     firstSolutionCpuTime=0.31  globalCpuTime=0.37
0.67/0.70	       =>  wckTime=0.437  cpuTime=0.32  mem=20M388
0.67/0.70	   
0.67/0.70	s SATISFIABLE
0.67/0.70	v 1 2 0 3 5 4 
0.67/0.70	d NODES 0
0.67/0.70	d CHECKS 106
0.67/0.70	   
0.67/0.70	   totalWckTime=0.508  totalCpuTime=0.37

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-2097612-1247413613/watcher-2097612-1247413613 -o /tmp/evaluation-result-2097612-1247413613/solver-2097612-1247413613 -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-2097612-1247413613.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: 2.00 2.00 2.00 4/80 691
/proc/meminfo: memFree=1627432/2055920 swapFree=4192812/4192956
[pid=691] ppid=689 vsize=18576 CPUtime=0
/proc/691/stat : 691 (runsolver) R 689 691 30416 0 -1 4194368 16 0 0 0 0 0 0 0 22 0 1 0 28427739 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 238487661863 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/691/statm: 4644 284 249 26 0 2626 0

[startup+0.0998759 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 691
/proc/meminfo: memFree=1627432/2055920 swapFree=4192812/4192956
[pid=691] ppid=689 vsize=865984 CPUtime=0.08
/proc/691/stat : 691 (java) S 689 691 30416 0 -1 0 3727 0 1 0 7 1 0 0 18 0 9 0 28427739 886767616 3195 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/691/statm: 216496 3195 1695 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.101873 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 691
/proc/meminfo: memFree=1627432/2055920 swapFree=4192812/4192956
[pid=691] ppid=689 vsize=865984 CPUtime=0.08
/proc/691/stat : 691 (java) S 689 691 30416 0 -1 0 3733 0 1 0 7 1 0 0 18 0 9 0 28427739 886767616 3201 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/691/statm: 216496 3201 1700 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.301915 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 691
/proc/meminfo: memFree=1627432/2055920 swapFree=4192812/4192956
[pid=691] ppid=689 vsize=866380 CPUtime=0.28
/proc/691/stat : 691 (java) S 689 691 30416 0 -1 0 5861 0 1 0 25 3 0 0 18 0 9 0 28427739 887173120 5227 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/691/statm: 216595 5227 1981 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701995 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 691
/proc/meminfo: memFree=1627432/2055920 swapFree=4192812/4192956
[pid=691] ppid=689 vsize=867380 CPUtime=0.67
/proc/691/stat : 691 (java) S 689 691 30416 0 -1 0 15072 264 1 0 60 7 0 0 18 0 9 0 28427739 888197120 10061 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/691/statm: 216845 10061 2653 9 0 211281 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867380

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

Child status: 0
Real time (s): 0.743345
CPU time (s): 0.701892
CPU user time (s): 0.613906
CPU system time (s): 0.087986
CPU usage (%): 94.4234
Max. virtual memory (cumulated for all children) (KiB): 867380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.613906
system time used= 0.087986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15451
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= 559
involuntary context switches= 631

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node23 at 2009-07-12 17:46:53
IDJOB=2097612
IDBENCH=57564
IDSOLVER=774
FILE ID=node23/2097612-1247413613
PBS_JOBID= 9510597
Free space on /tmp= 66352 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-3.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-2097612-1247413613/watcher-2097612-1247413613 -o /tmp/evaluation-result-2097612-1247413613/solver-2097612-1247413613 -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-2097612-1247413613.xml

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

MD5SUM BENCH= 106804da3e01f843ca5d9120fa0a4072
RANDOM SEED=2025900944

node23.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		: 3000.277
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		: 3000.277
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:       1627912 kB
Buffers:         42104 kB
Cached:         123068 kB
SwapCached:          0 kB
Active:         308300 kB
Inactive:        61468 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1627912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2048 kB
Writeback:           0 kB
Mapped:         225016 kB
Slab:            43088 kB
Committed_AS:  1013840 kB
PageTables:       2160 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= 66348 MiB
End job on node23 at 2009-07-12 17:46:54