Trace number 2097618

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 0.769882 0.779958

DiagnosticValue
CHECKS2687
NODES0

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-7.xml
MD5SUM7461ea6c46b3c4fc477be1a9706828d0
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 benchmark0.009998
Satisfiable
(Un)Satisfiability was proved
Number of variables14
Number of constraints98
Maximum constraint arity2
Maximum domain size14
Number of constraints which are defined in extension0
Number of constraints which are defined in intension98
Global constraints used (with number of constraints)

Solver Data 

0.02/0.08	
0.02/0.08	Abscon 112 (May, 2008)
0.19/0.22	
0.19/0.22	   configuration
0.19/0.22	     name=esac.xml
0.19/0.29	   
0.19/0.30	   instance
0.19/0.30	     name=HOME/instance-2097618-1247413662.xml
0.28/0.33	   
0.28/0.33	   domains being loaded...
0.28/0.34	   
0.28/0.34	   variables being loaded...
0.28/0.36	     nbVariables=14  nbDomainTypes=1  minDomainSize=14  maxDomainSize=14  nbTotalValues=196
0.28/0.36	       =>  wckTime=0.136  cpuTime=0.09  mem=7M892
0.28/0.36	   
0.28/0.36	   predicates being loaded...
0.38/0.43	   
0.38/0.43	   constraints being loaded...
0.48/0.56	     nbConstraints=92  nbGlobalConstraints=1  nbMergedConstraints=7  nbConvertedConstraints=91
0.48/0.56	     nbConvertConstraintsChecks=1568  nbExtensionStructures=8  nbSharedExtensionStructures=83  nbConflictsStructures=8
0.48/0.56	     nbSharedConflictsStructures=83  nbSharedBinaryRepresentations=195  minDegree=14  maxDegree=14  minArity=2
0.48/0.56	     avgArity=2.13  maxArity=14  nbGenerators=0  nbFusions=0  symmetryWckTime=0.04  symmetryCpuTime=0.02  nbCliques=1
0.48/0.56	       =>  wckTime=0.336  cpuTime=0.24  mem=14M792
0.57/0.61	   
0.57/0.61	   solver IterativeSystematicSolver being built... 
0.57/0.67	   
0.57/0.67	   INFO : Forward propagation technique limited 
0.67/0.73	       =>  wckTime=0.508  cpuTime=0.35  mem=19M429
0.67/0.76	   
0.67/0.76	   preprocessing
0.67/0.76	     nbConstraintChecks=2687  nbPropagations=189  nbRevisions=456  nbUselessRevisions=302  nbSingletonTests=28
0.67/0.76	     nbEffectiveSingletonTests=0  nbACRemovals=70  nbFoundSingletons=0  firstSolutionCpuTime=0.36  nbRemovedValues=70
0.67/0.76	     detectedInconsistency=no
0.67/0.76	       =>  wckTime=0.026  cpuTime=0.01  mem=20M437
0.67/0.76	   
0.67/0.76	   global
0.67/0.76	     nbConstraintChecks=2687  nbPropagations=189  nbRevisions=456  nbUselessRevisions=302  nbRestartNogoods=0
0.67/0.76	     solvingWckTime=0.03  solvingCpuTime=0.02  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.67/0.76	     firstSolutionCpuTime=0.36  globalCpuTime=0.43
0.67/0.76	       =>  wckTime=0.539  cpuTime=0.37  mem=20M437
0.67/0.76	   
0.67/0.76	s SATISFIABLE
0.67/0.76	v 0 3 7 8 4 5 1 2 6 11 13 10 12 9 
0.67/0.76	d NODES 0
0.67/0.76	d CHECKS 2687
0.67/0.76	   
0.67/0.76	   totalWckTime=0.591  totalCpuTime=0.44

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-2097618-1247413662/watcher-2097618-1247413662 -o /tmp/evaluation-result-2097618-1247413662/solver-2097618-1247413662 -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-2097618-1247413662.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: 2.23 2.09 2.02 4/81 31400
/proc/meminfo: memFree=1661472/2055920 swapFree=4192812/4192956
[pid=31400] ppid=31398 vsize=152 CPUtime=0
/proc/31400/stat : 31400 (java) R 31398 31400 28460 0 -1 0 41 0 0 0 0 0 0 0 18 0 1 0 28433442 155648 26 996147200 134512640 134550932 4294956128 18446744073709551615 3306276 0 0 4096 0 0 0 0 17 0 0 0
/proc/31400/statm: 38 26 19 9 0 4 0

[startup+0.0424059 s]
/proc/loadavg: 2.23 2.09 2.02 4/81 31400
/proc/meminfo: memFree=1661472/2055920 swapFree=4192812/4192956
[pid=31400] ppid=31398 vsize=861936 CPUtime=0.02
/proc/31400/stat : 31400 (java) S 31398 31400 28460 0 -1 0 2294 0 1 0 1 1 0 0 18 0 5 0 28433442 882622464 1894 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/31400/statm: 215565 1973 905 9 0 210480 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861936

[startup+0.107593 s]
/proc/loadavg: 2.23 2.09 2.02 4/81 31400
/proc/meminfo: memFree=1661472/2055920 swapFree=4192812/4192956
[pid=31400] ppid=31398 vsize=865984 CPUtime=0.09
/proc/31400/stat : 31400 (java) S 31398 31400 28460 0 -1 0 3977 0 1 0 7 2 0 0 18 0 9 0 28433442 886767616 3406 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31400/statm: 216496 3406 1774 9 0 210981 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865984

[startup+0.302615 s]
/proc/loadavg: 2.23 2.09 2.02 4/81 31400
/proc/meminfo: memFree=1661472/2055920 swapFree=4192812/4192956
[pid=31400] ppid=31398 vsize=866372 CPUtime=0.28
/proc/31400/stat : 31400 (java) S 31398 31400 28460 0 -1 0 5867 0 1 0 25 3 0 0 18 0 9 0 28433442 887164928 5233 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31400/statm: 216593 5233 1981 9 0 211051 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866372

[startup+0.701649 s]
/proc/loadavg: 2.23 2.09 2.02 4/81 31400
/proc/meminfo: memFree=1661472/2055920 swapFree=4192812/4192956
[pid=31400] ppid=31398 vsize=867052 CPUtime=0.67
/proc/31400/stat : 31400 (java) S 31398 31400 28460 0 -1 0 13431 269 1 0 61 6 0 0 18 0 9 0 28433442 887861248 8321 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31400/statm: 216763 8321 2651 9 0 211199 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867052

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

Child status: 0
Real time (s): 0.779958
CPU time (s): 0.769882
CPU user time (s): 0.676897
CPU system time (s): 0.092985
CPU usage (%): 98.7081
Max. virtual memory (cumulated for all children) (KiB): 867052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.676897
system time used= 0.092985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15665
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= 436
involuntary context switches= 496

runsolver used 0.007998 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node8 at 2009-07-12 17:47:42
IDJOB=2097618
IDBENCH=57571
IDSOLVER=774
FILE ID=node8/2097618-1247413662
PBS_JOBID= 9510627
Free space on /tmp= 66288 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-7.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-2097618-1247413662/watcher-2097618-1247413662 -o /tmp/evaluation-result-2097618-1247413662/solver-2097618-1247413662 -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-2097618-1247413662.xml

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

MD5SUM BENCH= 7461ea6c46b3c4fc477be1a9706828d0
RANDOM SEED=346171126

node8.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		: 3000.213
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		: 3000.213
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:       1661952 kB
Buffers:         42860 kB
Cached:         145364 kB
SwapCached:          0 kB
Active:         238228 kB
Inactive:        97952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1661952 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2172 kB
Writeback:           0 kB
Mapped:         168364 kB
Slab:            42708 kB
Committed_AS:   990180 kB
PageTables:       2016 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= 66284 MiB
End job on node8 at 2009-07-12 17:47:43