Trace number 237852

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 0.724889 0.782082

DiagnosticValue
CHECKS2263
NODES75

General information on the benchmark

Namehaystacks/
haystacks_04.xml
MD5SUMd27edd6530026bc4e9b6a215c658ef2b
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 benchmark0.016997
SatisfiableNO
(Un)Satisfiability was proved
Number of variables16
Number of constraints27
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension27
Global constraints used (with number of constraints)

Solver Data (download as text)

0.33	   
0.33	Abscon 109 (November, 2006)
0.33	   
0.33	   configuration
0.33	     name=esac.xml
0.36	   
0.36	   instance
0.36	     name=/tmp/evaluation/237852-1168351566/unknown.xml
0.39	   
0.39	   domains being loaded...
0.40	   
0.40	   variables being loaded...
0.42	     nbVariables=16  nbDomainTypes=1  minDomainSize=4  maxDomainSize=4
0.42	       =>  wckTime=0.091  cpuTime=0.08  mem=6M902
0.42	   
0.42	   predicates being loaded...
0.43	   
0.43	   constraints being loaded...
0.49	     nbConstraints=27  nbConvertedConstraints=27  nbConvertConstraintsChecks=64  nbExtensionStructures=4
0.49	     nbSharedExtensionStructures=23  nbConflictsStructures=4  nbSharedConflictsStructures=23
0.49	     nbSharedBinaryRepresentations=23  maxDegree=4  maxArity=2
0.49	       =>  wckTime=0.154  cpuTime=0.13  mem=7M878
0.52	   
0.52	   solver IterativeSystematicSolver being built... 
0.70	       =>  wckTime=0.365  cpuTime=0.28  mem=14M319
0.71	   
0.71	   preprocessing
0.71	     nbConstraintChecks=442  nbPropagations=132  nbRevisions=151  nbUselessRevisions=48  nbSingletonTests=29
0.71	     nbEffectiveSingletonTests=0  nbESACBranches=5  nbRemovedValues=0  detectedInconsistency=no
0.71	       =>  wckTime=0.0080  cpuTime=0.01  mem=14M319
0.73	   
0.73	   search
0.73	     run=0  nbConstraintChecks=331  nbPropagations=231  nbRevisions=278  nbUselessRevisions=72  nbAssignments=20
0.73	     nbFailedAssignments=8  nbBacktracks=11  nbVisitedNodes=36  nbRestartNogoods=0  mapSize=10  nbInferences=1
0.73	     nbTooLargeKeys=0
0.73	       =>  wckTime=0.027  cpuTime=0.02  mem=14M319
0.73	   
0.73	   search
0.73	     run=1  nbConstraintChecks=916  nbPropagations=618  nbRevisions=757  nbUselessRevisions=174  nbAssignments=45
0.73	     nbFailedAssignments=17  nbBacktracks=27  nbVisitedNodes=79  nbRestartNogoods=0  mapSize=23  nbInferences=1
0.73	     nbTooLargeKeys=0
0.73	       =>  wckTime=0.036  cpuTime=0.03  mem=14M319
0.74	   
0.74	   search
0.74	     run=2  nbConstraintChecks=1821  nbPropagations=1219  nbRevisions=1552  nbUselessRevisions=332  nbAssignments=75
0.74	     nbFailedAssignments=32  nbBacktracks=43  nbVisitedNodes=133  nbRestartNogoods=0  mapSize=38  nbInferences=1
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.044  cpuTime=0.03  mem=14M319
0.74	   
0.74	   global
0.74	     nbConstraintChecks=2263  nbPropagations=1351  nbRevisions=1703  nbUselessRevisions=380  nbRestartNogoods=0
0.74	     solvingWckTime=0.045  solvingCpuTime=0.03  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.74	     globalCpuTime=0.35
0.74	       =>  wckTime=0.411  cpuTime=0.31  mem=14M319
0.75	   
0.75	s UNSATISFIABLE
0.75	d NODES 75
0.75	d CHECKS 2263
0.75	   
0.75	   totalWckTime=0.491  totalCpuTime=0.36

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/node26/watcher-237852-1168351566 -o ROOT/results/node26/solver-237852-1168351566 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/237852-1168351566/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: 0.92 1.30 1.68 4/83 10244
/proc/meminfo: memFree=1819816/2055920 swapFree=4192812/4192956
[pid=10243] ppid=10240 vsize=18540 CPUtime=0
/proc/10243/stat : 10243 (runsolver) R 10240 10243 10134 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 183550934 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 269028486439 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/10243/statm: 4635 279 244 17 0 2626 0

[startup+0.108127 s]
/proc/loadavg: 0.92 1.30 1.68 4/83 10244
/proc/meminfo: memFree=1819816/2055920 swapFree=4192812/4192956
[pid=10243] ppid=10240 vsize=912760 CPUtime=0.08
/proc/10243/stat : 10243 (java) S 10240 10243 10134 0 -1 0 2777 0 1 0 7 1 0 0 18 0 8 0 183550934 934666240 2523 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10243/statm: 228190 2523 1387 14 0 215091 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 912760

[startup+0.520169 s]
/proc/loadavg: 0.92 1.30 1.68 4/83 10244
/proc/meminfo: memFree=1819816/2055920 swapFree=4192812/4192956
[pid=10243] ppid=10240 vsize=915328 CPUtime=0.48
/proc/10243/stat : 10243 (java) R 10240 10243 10134 0 -1 0 6407 0 1 0 44 4 0 0 18 0 8 0 183550934 937295872 6145 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10243/statm: 228832 6145 2181 14 0 215302 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.782082
CPU time (s): 0.724889
CPU user time (s): 0.6559
CPU system time (s): 0.068989
CPU usage (%): 92.6871
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.6559
system time used= 0.068989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8528
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= 615
involuntary context switches= 565

runsolver used 0.003999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node26 on Tue Jan  9 14:06:07 UTC 2007


IDJOB= 237852
IDBENCH= 6967
FILE ID= node26/237852-1168351566

PBS_JOBID= 3503876

Free space on /tmp= 66538 MiB

BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_04.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/237852-1168351566/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-237852-1168351566 -o ROOT/results/node26/solver-237852-1168351566 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/237852-1168351566/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  d27edd6530026bc4e9b6a215c658ef2b

RANDOM SEED= 619130525

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		: 3000.236
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		: 3000.236
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:       1820440 kB
Buffers:         16704 kB
Cached:         103180 kB
SwapCached:          0 kB
Active:         134228 kB
Inactive:        49852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1820440 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5268 kB
Writeback:           0 kB
Mapped:          83140 kB
Slab:            36312 kB
Committed_AS:  3688836 kB
PageTables:       2112 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= 66538 MiB



End job on node26 on Tue Jan  9 14:06:07 UTC 2007