Trace number 2097578

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 ESACUNSAT 0.941856 0.996716

DiagnosticValue
CHECKS24
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-3.xml
MD5SUMd07220ca9cf8898c2c9b405e7e6368f7
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 benchmark0.029995
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints210
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension210
Global constraints used (with number of constraints)

Solver Data 

0.08/0.09	
0.08/0.09	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.24	   configuration
0.18/0.24	     name=esac.xml
0.28/0.32	   
0.28/0.32	   instance
0.28/0.32	     name=HOME/instance-2097578-1247413553.xml
0.28/0.36	   
0.28/0.36	   domains being loaded...
0.28/0.37	   
0.28/0.37	   variables being loaded...
0.28/0.39	     nbVariables=24  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=288
0.28/0.39	       =>  wckTime=0.146  cpuTime=0.09  mem=7M892
0.28/0.39	   
0.28/0.39	   predicates being loaded...
0.38/0.46	   
0.38/0.46	   constraints being loaded...
0.68/0.75	     nbConstraints=212  nbGlobalConstraints=2  nbConvertedConstraints=210  nbConvertConstraintsChecks=1872
0.68/0.75	     nbExtensionStructures=13  nbSharedExtensionStructures=197  nbConflictsStructures=13
0.68/0.75	     nbSharedConflictsStructures=197  nbSharedBinaryRepresentations=198  minDegree=13  maxDegree=25  minArity=2
0.68/0.75	     avgArity=2.16  maxArity=24  nbGenerators=1  nbFusions=1  symmetryWckTime=0.071  symmetryCpuTime=0.05  nbCliques=1
0.68/0.75	       =>  wckTime=0.511  cpuTime=0.35  mem=15M933
0.77/0.80	   
0.77/0.80	   solver IterativeSystematicSolver being built... 
0.77/0.87	   
0.77/0.87	   INFO : Forward propagation technique limited 
0.86/0.94	       =>  wckTime=0.694  cpuTime=0.46  mem=19M624
0.86/0.94	   
0.86/0.94	   preprocessing
0.86/0.94	     nbConstraintChecks=24  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2  nbRemovedTuples=65
0.86/0.94	     detectedInconsistency=yes
0.86/0.94	       =>  wckTime=0.0030  cpuTime=0.0  mem=20M615
0.86/0.94	   
0.86/0.94	   global
0.86/0.94	     nbConstraintChecks=24  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.86/0.94	     solvingWckTime=0.0060  solvingCpuTime=0.0  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.86/0.94	     globalCpuTime=0.52
0.86/0.94	       =>  wckTime=0.701  cpuTime=0.46  mem=20M615
0.86/0.94	   
0.86/0.94	s UNSATISFIABLE
0.86/0.94	d NODES 0
0.86/0.94	d CHECKS 24
0.86/0.95	   
0.86/0.95	   totalWckTime=0.758  totalCpuTime=0.53

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2097578-1247413553/watcher-2097578-1247413553 -o /tmp/evaluation-result-2097578-1247413553/solver-2097578-1247413553 -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-2097578-1247413553.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 4/80 314
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=314] ppid=312 vsize=18576 CPUtime=0
/proc/314/stat : 314 (runsolver) R 312 314 31096 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 28421701 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 266134416679 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/314/statm: 4644 284 249 26 0 2626 0

[startup+0.08993 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 314
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=314] ppid=312 vsize=865956 CPUtime=0.08
/proc/314/stat : 314 (java) S 312 314 31096 0 -1 0 3615 0 1 0 6 2 0 0 18 0 9 0 28421701 886738944 3098 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/314/statm: 216489 3098 1653 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865956

[startup+0.101931 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 314
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=314] ppid=312 vsize=865984 CPUtime=0.09
/proc/314/stat : 314 (java) S 312 314 31096 0 -1 0 3756 0 1 0 7 2 0 0 18 0 9 0 28421701 886767616 3214 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/314/statm: 216496 3214 1697 9 0 210981 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865984

[startup+0.301955 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 314
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=314] ppid=312 vsize=866296 CPUtime=0.28
/proc/314/stat : 314 (java) S 312 314 31096 0 -1 0 5696 0 1 0 26 2 0 0 18 0 9 0 28421701 887087104 5099 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/314/statm: 216574 5099 1927 9 0 211052 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866296

[startup+0.701996 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 314
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=314] ppid=312 vsize=867188 CPUtime=0.68
/proc/314/stat : 314 (java) S 312 314 31096 0 -1 0 8198 0 1 0 63 5 0 0 18 0 9 0 28421701 888000512 7550 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/314/statm: 216797 7550 2036 9 0 211233 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867188

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

[startup+0.902024 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 314
/proc/meminfo: memFree=1675544/2055920 swapFree=4192812/4192956
[pid=314] ppid=312 vsize=867960 CPUtime=0.86
/proc/314/stat : 314 (java) S 312 314 31096 0 -1 0 14057 290 1 0 79 7 0 0 18 0 9 0 28421701 888791040 8818 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/314/statm: 216990 8818 2652 9 0 211426 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 867960

Child status: 0
Real time (s): 0.996716
CPU time (s): 0.941856
CPU user time (s): 0.843871
CPU system time (s): 0.097985
CPU usage (%): 94.4959
Max. virtual memory (cumulated for all children) (KiB): 867960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.843871
system time used= 0.097985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16208
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= 523
involuntary context switches= 584

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node35 at 2009-07-12 17:45:53
IDJOB=2097578
IDBENCH=57530
IDSOLVER=774
FILE ID=node35/2097578-1247413553
PBS_JOBID= 9510573
Free space on /tmp= 66300 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-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-2097578-1247413553/watcher-2097578-1247413553 -o /tmp/evaluation-result-2097578-1247413553/solver-2097578-1247413553 -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-2097578-1247413553.xml

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

MD5SUM BENCH= d07220ca9cf8898c2c9b405e7e6368f7
RANDOM SEED=567449372

node35.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1676024 kB
Buffers:         39552 kB
Cached:         131740 kB
SwapCached:          0 kB
Active:         248120 kB
Inactive:        77436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1676024 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2372 kB
Writeback:           0 kB
Mapped:         174676 kB
Slab:            39284 kB
Committed_AS:  1034808 kB
PageTables:       2080 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= 66296 MiB
End job on node35 at 2009-07-12 17:45:54