Trace number 221153

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, and are wall clock time (not CPU 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 109 ESACUNSAT 0.814875 0.862762

DiagnosticValue
CHECKS102789
NODES643

General information on the benchmark

NamequeenAttacking/
queenAttacking-4.xml
MD5SUMc5e138c65bd2b9ba1b0ba08337d6d93f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.056991
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables17
Number of constraints126
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension126
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.29	Abscon 109 (November, 2006)
0.29	   
0.29	   configuration
0.29	     name=esac.xml
0.32	   
0.32	   instance
0.32	     name=/tmp/evaluation/221153-1168256677/unknown.xml
0.35	   
0.35	   domains being loaded...
0.35	   
0.35	   variables being loaded...
0.38	     nbVariables=17  nbDomainTypes=2  minDomainSize=3  maxDomainSize=16
0.38	       =>  wckTime=0.092  cpuTime=0.08  mem=6M902
0.38	   
0.38	   predicates being loaded...
0.39	   
0.39	   constraints being loaded...
0.49	     nbConstraints=126  nbConvertedConstraints=126  nbConvertConstraintsChecks=560  nbExtensionStructures=3
0.49	     nbSharedExtensionStructures=123  nbConflictsStructures=3  nbSharedConflictsStructures=123
0.49	     nbSharedBinaryRepresentations=42  maxDegree=16  maxArity=2
0.49	       =>  wckTime=0.198  cpuTime=0.16  mem=8M853
0.52	   
0.52	   solver IterativeSystematicSolver being built... 
0.67	       =>  wckTime=0.387  cpuTime=0.29  mem=13M338
0.70	   
0.70	   preprocessing
0.70	     nbConstraintChecks=4204  nbPropagations=197  nbRevisions=655  nbUselessRevisions=387  nbSingletonTests=23
0.70	     nbEffectiveSingletonTests=0  nbESACBranches=3  nbRemovedValues=6  detectedInconsistency=no
0.70	       =>  wckTime=0.023  cpuTime=0.02  mem=13M338
0.72	   
0.72	   search
0.72	     run=0  nbConstraintChecks=4313  nbPropagations=416  nbRevisions=1411  nbUselessRevisions=764  nbAssignments=19
0.72	     nbFailedAssignments=7  nbBacktracks=10  nbVisitedNodes=34  nbRestartNogoods=0  mapSize=9  nbInferences=0
0.72	     nbTooLargeKeys=0
0.72	       =>  wckTime=0.042  cpuTime=0.03  mem=14M330
0.73	   
0.73	   search
0.73	     run=1  nbConstraintChecks=7700  nbPropagations=1012  nbRevisions=3486  nbUselessRevisions=1871  nbAssignments=45
0.73	     nbFailedAssignments=12  nbBacktracks=25  nbVisitedNodes=71  nbRestartNogoods=3  mapSize=17  nbInferences=0
0.73	     nbTooLargeKeys=0
0.73	       =>  wckTime=0.052  cpuTime=0.04  mem=14M330
0.74	   
0.74	   search
0.74	     run=2  nbConstraintChecks=12033  nbPropagations=1856  nbRevisions=6646  nbUselessRevisions=3606  nbAssignments=80
0.74	     nbFailedAssignments=22  nbBacktracks=48  nbVisitedNodes=127  nbRestartNogoods=6  mapSize=33  nbInferences=1
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.061  cpuTime=0.05  mem=14M330
0.75	   
0.75	   search
0.75	     run=3  nbConstraintChecks=19360  nbPropagations=3121  nbRevisions=11560  nbUselessRevisions=6357  nbAssignments=135
0.75	     nbFailedAssignments=42  nbBacktracks=82  nbVisitedNodes=214  nbRestartNogoods=7  mapSize=56  nbInferences=1
0.75	     nbTooLargeKeys=0
0.75	       =>  wckTime=0.073  cpuTime=0.05  mem=14M330
0.76	   
0.76	   search
0.76	     run=4  nbConstraintChecks=30677  nbPropagations=5046  nbRevisions=19318  nbUselessRevisions=10827
0.77	     nbAssignments=218  nbFailedAssignments=68  nbBacktracks=134  nbVisitedNodes=350  nbRestartNogoods=9  mapSize=98
0.77	     nbInferences=1  nbTooLargeKeys=0
0.77	       =>  wckTime=0.087  cpuTime=0.06  mem=14M330
0.78	   
0.78	   search
0.78	     run=5  nbConstraintChecks=51756  nbPropagations=8044  nbRevisions=32499  nbUselessRevisions=18671
0.78	     nbAssignments=341  nbFailedAssignments=109  nbBacktracks=210  nbVisitedNodes=553  nbRestartNogoods=13  mapSize=164
0.78	     nbInferences=1  nbTooLargeKeys=0
0.78	       =>  wckTime=0.102  cpuTime=0.07  mem=14M330
0.80	   
0.80	   search
0.80	     run=6  nbConstraintChecks=73545  nbPropagations=12384  nbRevisions=51652  nbUselessRevisions=30288
0.80	     nbAssignments=518  nbFailedAssignments=169  nbBacktracks=325  nbVisitedNodes=837  nbRestartNogoods=17  mapSize=247
0.80	     nbInferences=1  nbTooLargeKeys=0
0.80	       =>  wckTime=0.121  cpuTime=0.09  mem=14M330
0.81	   
0.81	   search
0.81	     run=7  nbConstraintChecks=98585  nbPropagations=17930  nbRevisions=76771  nbUselessRevisions=45412
0.81	     nbAssignments=643  nbFailedAssignments=212  nbBacktracks=408  nbVisitedNodes=1045  nbRestartNogoods=18  mapSize=306
0.81	     nbInferences=1  nbTooLargeKeys=0
0.81	       =>  wckTime=0.135  cpuTime=0.1  mem=14M330
0.81	   
0.81	   global
0.81	     nbConstraintChecks=102789  nbPropagations=18127  nbRevisions=77426  nbUselessRevisions=45799  nbRestartNogoods=18
0.81	     solvingWckTime=0.136  solvingCpuTime=0.1  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.81	     globalCpuTime=0.44
0.81	       =>  wckTime=0.524  cpuTime=0.39  mem=14M330
0.81	   
0.81	s UNSATISFIABLE
0.81	d NODES 643
0.81	d CHECKS 102789
0.81	   
0.81	   totalWckTime=0.6  totalCpuTime=0.45

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node75/watcher-221153-1168256677 -o ROOT/results/node75/solver-221153-1168256677 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/221153-1168256677/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.61 0.66 0.71 4/74 18189
/proc/meminfo: memFree=1820192/2055920 swapFree=4184496/4192956
[pid=18188] ppid=18186 vsize=1784 CPUtime=0
/proc/18188/stat : 18188 (java) D 18186 18188 17502 0 -1 0 346 0 0 0 0 0 0 0 20 0 1 0 174067634 1826816 140 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099855350 0 0 17 0 0 0
/proc/18188/statm: 446 140 106 14 0 91 0

[startup+0.107268 s]
/proc/loadavg: 0.61 0.66 0.71 4/74 18189
/proc/meminfo: memFree=1820192/2055920 swapFree=4184496/4192956
[pid=18188] ppid=18186 vsize=914988 CPUtime=0.09
/proc/18188/stat : 18188 (java) R 18186 18188 17502 0 -1 0 3116 0 1 0 8 1 0 0 25 0 8 0 174067634 936947712 2862 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/18188/statm: 228747 2863 1469 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.515319 s]
/proc/loadavg: 0.61 0.66 0.71 4/74 18189
/proc/meminfo: memFree=1820192/2055920 swapFree=4184496/4192956
[pid=18188] ppid=18186 vsize=915460 CPUtime=0.5
/proc/18188/stat : 18188 (java) R 18186 18188 17502 0 -1 0 6660 0 1 0 45 5 0 0 25 0 8 0 174067634 937431040 6398 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/18188/statm: 228865 6398 2181 14 0 215335 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 0.862762
CPU time (s): 0.814875
CPU user time (s): 0.737887
CPU system time (s): 0.076988
CPU usage (%): 94.4496
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.737887
system time used= 0.076988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8510
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= 810
involuntary context switches= 929

runsolver used 0.005999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node75 on Mon Jan  8 11:44:39 UTC 2007


IDJOB= 221153
IDBENCH= 5398
FILE ID= node75/221153-1168256677

PBS_JOBID= 3482596

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queenAttacking/queenAttacking-4.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/221153-1168256677/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-221153-1168256677 -o ROOT/results/node75/solver-221153-1168256677 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/221153-1168256677/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  c5e138c65bd2b9ba1b0ba08337d6d93f

RANDOM SEED= 890746759

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.218
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		: 3000.218
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:       1826304 kB
Buffers:         36076 kB
Cached:          90376 kB
SwapCached:       2680 kB
Active:         109392 kB
Inactive:        67096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1826304 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:            6476 kB
Writeback:           0 kB
Mapped:          57100 kB
Slab:            38412 kB
Committed_AS:  3994164 kB
PageTables:       1868 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= 66554 MiB



End job on node75 on Mon Jan  8 11:44:46 UTC 2007