Trace number 1084644

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 0.867867 0.869724

DiagnosticValue
CHECKS8832
NODES63

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-8.xml
MD5SUM597114782507517e5af808ba8c1eefba
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 variables16
Number of constraints128
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension128
Global constraints used (with number of constraints)

Solver Data (download as text)

0.06/0.12	
0.06/0.12	Abscon 112 (May, 2008)
0.15/0.26	
0.15/0.26	   configuration
0.15/0.26	     name=esac.xml
0.25/0.32	   
0.25/0.32	   instance
0.25/0.32	     name=HOME/instance-1084644-1215231187.xml
0.25/0.36	   
0.25/0.36	   domains being loaded...
0.25/0.37	   
0.25/0.37	   variables being loaded...
0.25/0.39	     nbVariables=16  nbDomainTypes=1  minDomainSize=16  maxDomainSize=16  nbTotalValues=256
0.25/0.39	       =>  wckTime=0.128  cpuTime=0.1  mem=7M919
0.25/0.39	   
0.25/0.39	   predicates being loaded...
0.37/0.46	   
0.37/0.46	   constraints being loaded...
0.57/0.62	     nbConstraints=121  nbGlobalConstraints=1  nbMergedConstraints=8  nbConvertedConstraints=120
0.57/0.62	     nbConvertConstraintsChecks=2304  nbExtensionStructures=9  nbSharedExtensionStructures=111  nbConflictsStructures=9
0.57/0.62	     nbSharedConflictsStructures=111  nbSharedBinaryRepresentations=255  minDegree=16  maxDegree=16  minArity=2
0.57/0.62	     avgArity=2.12  maxArity=16  nbGenerators=0  nbFusions=0  symmetryWckTime=0.044  symmetryCpuTime=0.03  nbCliques=1
0.57/0.62	       =>  wckTime=0.357  cpuTime=0.27  mem=14M759
0.57/0.67	   
0.57/0.67	   solver IterativeSystematicSolver being built... 
0.67/0.72	   
0.67/0.72	   INFO : Forward propagation technique limited 
0.67/0.78	       =>  wckTime=0.511  cpuTime=0.38  mem=19M585
0.67/0.80	   
0.67/0.80	   preprocessing
0.67/0.80	     nbConstraintChecks=3820  nbPropagations=224  nbRevisions=548  nbUselessRevisions=351  nbSingletonTests=25
0.67/0.80	     nbEffectiveSingletonTests=0  nbACRemovals=88  nbFoundSingletons=0  nbRemovedValues=88  detectedInconsistency=no
0.67/0.80	       =>  wckTime=0.018  cpuTime=0.02  mem=19M585
0.80/0.82	   
0.80/0.82	   search
0.80/0.82	     run=1  nbConstraintChecks=5012  minDepth=6  maxDepth=16  nbPropagations=1120  nbRevisions=3163
0.80/0.82	     nbUselessRevisions=2145  nbAssignments=63  nbFailedAssignments=11  nbBacktracks=28  nbVisitedNodes=85
0.80/0.82	     nbRestartNogoods=4  nbFoundSolutions=1  mapSize=14  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.80/0.82	     nbREliminables=0  nbIEliminables=12.2  nbDEliminables=0  nbPEliminables=0
0.80/0.82	       =>  wckTime=0.044  cpuTime=0.04  mem=20M593
0.80/0.82	   
0.80/0.82	   global
0.80/0.82	     nbConstraintChecks=8832  nbPropagations=1344  nbRevisions=3711  nbUselessRevisions=2496  nbRestartNogoods=4
0.80/0.82	     solvingWckTime=0.045  solvingCpuTime=0.04  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.80/0.82	     firstSolutionCpuTime=0.42  globalCpuTime=0.47
0.80/0.82	       =>  wckTime=0.558  cpuTime=0.42  mem=20M593
0.80/0.82	   
0.80/0.82	s SATISFIABLE
0.80/0.82	v 13 1 3 6 8 5 2 0 15 4 7 11 14 12 10 9 
0.80/0.82	d NODES 63
0.80/0.82	d CHECKS 8832
0.80/0.83	   
0.80/0.83	   totalWckTime=0.61  totalCpuTime=0.48

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084644-1215231187/watcher-1084644-1215231187 -o /tmp/evaluation-result-1084644-1215231187/solver-1084644-1215231187 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1084644-1215231187.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.75 1.95 1.98 4/81 6810
/proc/meminfo: memFree=1739576/2055920 swapFree=4181452/4192956
[pid=6810] ppid=6808 vsize=18572 CPUtime=0
/proc/6810/stat : 6810 (runsolver) R 6808 6810 4618 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 135129762 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 210723466535 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/6810/statm: 4643 292 257 25 0 2626 0

[startup+0.06767 s]
/proc/loadavg: 1.75 1.95 1.98 4/81 6810
/proc/meminfo: memFree=1739576/2055920 swapFree=4181452/4192956
[pid=6810] ppid=6808 vsize=861876 CPUtime=0.02
/proc/6810/stat : 6810 (java) S 6808 6810 4618 0 -1 0 2211 0 1 0 2 0 0 0 18 0 5 0 135129762 882561024 1834 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16784585 18446744073709551615 0 0 17 1 0 0
/proc/6810/statm: 215469 1834 842 9 0 210448 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861876

[startup+0.101669 s]
/proc/loadavg: 1.75 1.95 1.98 4/81 6810
/proc/meminfo: memFree=1739576/2055920 swapFree=4181452/4192956
[pid=6810] ppid=6808 vsize=865856 CPUtime=0.06
/proc/6810/stat : 6810 (java) S 6808 6810 4618 0 -1 0 3008 0 1 0 5 1 0 0 18 0 9 0 135129762 886636544 2534 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/6810/statm: 216464 2534 1266 9 0 211026 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 865856

[startup+0.301694 s]
/proc/loadavg: 1.75 1.95 1.98 4/81 6810
/proc/meminfo: memFree=1739576/2055920 swapFree=4181452/4192956
[pid=6810] ppid=6808 vsize=866048 CPUtime=0.25
/proc/6810/stat : 6810 (java) S 6808 6810 4618 0 -1 0 5524 0 1 0 22 3 0 0 18 0 9 0 135129762 886833152 4947 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/6810/statm: 216512 4947 1883 9 0 211060 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 866048

[startup+0.701738 s]
/proc/loadavg: 1.75 1.95 1.98 4/81 6810
/proc/meminfo: memFree=1739576/2055920 swapFree=4181452/4192956
[pid=6810] ppid=6808 vsize=868320 CPUtime=0.67
/proc/6810/stat : 6810 (java) S 6808 6810 4618 0 -1 0 11420 274 1 0 60 7 0 0 18 0 9 0 135129762 889159680 8234 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/6810/statm: 217080 8234 2627 9 0 211586 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 868320

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

[startup+0.801747 s]
/proc/loadavg: 1.75 1.95 1.98 4/81 6810
/proc/meminfo: memFree=1739576/2055920 swapFree=4181452/4192956
[pid=6810] ppid=6808 vsize=868320 CPUtime=0.8
/proc/6810/stat : 6810 (java) S 6808 6810 4618 0 -1 0 15005 274 1 0 72 8 0 0 18 0 9 0 135129762 889159680 10005 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/6810/statm: 217080 10007 2630 9 0 211586 0
Current children cumulated CPU time (s) 0.8
Current children cumulated vsize (KiB) 868320

Child status: 0
Real time (s): 0.869724
CPU time (s): 0.867867
CPU user time (s): 0.763883
CPU system time (s): 0.103984
CPU usage (%): 99.7865
Max. virtual memory (cumulated for all children) (KiB): 868320

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.763883
system time used= 0.103984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15648
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= 462
involuntary context switches= 436

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node73 at 2008-07-05 06:13:07
IDJOB=1084644
IDBENCH=57575
IDSOLVER=364
FILE ID=node73/1084644-1215231187
PBS_JOBID= 7881899
Free space on /tmp= 66556 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-8.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= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084644-1215231187/watcher-1084644-1215231187 -o /tmp/evaluation-result-1084644-1215231187/solver-1084644-1215231187 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1084644-1215231187.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 597114782507517e5af808ba8c1eefba
RANDOM SEED=687968276

node73.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		: 3000.230
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		: 3000.230
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:       1740568 kB
Buffers:         61124 kB
Cached:         174840 kB
SwapCached:       5300 kB
Active:         173792 kB
Inactive:        79328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1740568 kB
SwapTotal:     4192956 kB
SwapFree:      4181452 kB
Dirty:            5680 kB
Writeback:           0 kB
Mapped:          30384 kB
Slab:            47608 kB
Committed_AS:  1210556 kB
PageTables:       1792 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= 66556 MiB
End job on node73 at 2008-07-05 06:13:08