Trace number 244414

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 1.16782 1.2412

DiagnosticValue
CHECKS12091
NODES497

General information on the benchmark

Namedimacs/jnhUnsat/
jnh06_ext.xml
MD5SUM4893a5f43d25b7e9937cd4058fee716a
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.075987
SatisfiableNO
(Un)Satisfiability was proved
Number of variables100
Number of constraints850
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension850
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.30	   
0.30	Abscon 109 (November, 2006)
0.30	   
0.30	   configuration
0.30	     name=esac.xml
0.33	   
0.33	   instance
0.33	     name=/tmp/evaluation/244414-1168385778/unknown.xml
0.36	   
0.36	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.40	     nbVariables=100  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.40	       =>  wckTime=0.093  cpuTime=0.08  mem=6M951
0.40	   
0.40	   relations being loaded...
0.44	   
0.44	   constraints being loaded...
0.60	     nbConstraints=850  nbRelationTypes=221  nbExtensionStructures=221  nbSharedExtensionStructures=629
0.60	     nbConflictsStructures=221  nbSharedConflictsStructures=629  nbSharedBinaryRepresentations=13  maxDegree=59
0.60	     maxArity=11
0.60	       =>  wckTime=0.3  cpuTime=0.22  mem=11M827
0.65	   
0.65	   solver IterativeSystematicSolver being built... 
0.85	       =>  wckTime=0.552  cpuTime=0.38  mem=23M110
0.95	   
0.95	   preprocessing
0.95	     nbConstraintChecks=2014  nbValidityChecks=787  nbPropagations=507  nbRevisions=2409  nbUselessRevisions=2058
0.95	     nbSingletonTests=128  nbEffectiveSingletonTests=0  nbESACBranches=8  nbRemovedValues=0  detectedInconsistency=no
0.95	       =>  wckTime=0.092  cpuTime=0.07  mem=23M110
0.99	   
0.99	   search
0.99	     run=0  nbConstraintChecks=930  nbValidityChecks=668  nbPropagations=670  nbRevisions=3557  nbUselessRevisions=3004
0.99	     nbAssignments=36  nbFailedAssignments=5  nbBacktracks=11  nbVisitedNodes=45  nbRestartNogoods=0  mapSize=5
0.99	     nbInferences=0  nbTooLargeKeys=0
0.99	       =>  wckTime=0.134  cpuTime=0.1  mem=23M110
1.02	   
1.02	   search
1.02	     run=1  nbConstraintChecks=1847  nbValidityChecks=1618  nbPropagations=1532  nbRevisions=8453
1.02	     nbUselessRevisions=7114  nbAssignments=88  nbFailedAssignments=9  nbBacktracks=45  nbVisitedNodes=91
1.02	     nbRestartNogoods=2  mapSize=11  nbInferences=0  nbTooLargeKeys=0
1.02	       =>  wckTime=0.16  cpuTime=0.12  mem=23M110
1.04	   
1.04	   search
1.04	     run=2  nbConstraintChecks=2763  nbValidityChecks=2395  nbPropagations=2585  nbRevisions=14444
1.04	     nbUselessRevisions=12089  nbAssignments=124  nbFailedAssignments=13  nbBacktracks=75  nbVisitedNodes=136
1.04	     nbRestartNogoods=3  mapSize=19  nbInferences=0  nbTooLargeKeys=0
1.04	       =>  wckTime=0.18  cpuTime=0.14  mem=23M110
1.07	   
1.07	   search
1.07	     run=3  nbConstraintChecks=4289  nbValidityChecks=3840  nbPropagations=3909  nbRevisions=22473
1.07	     nbUselessRevisions=18773  nbAssignments=197  nbFailedAssignments=21  nbBacktracks=118  nbVisitedNodes=227
1.07	     nbRestartNogoods=4  mapSize=34  nbInferences=0  nbTooLargeKeys=0
1.07	       =>  wckTime=0.21  cpuTime=0.16  mem=23M110
1.10	   
1.10	   search
1.10	     run=4  nbConstraintChecks=5634  nbValidityChecks=5277  nbPropagations=5521  nbRevisions=32484
1.10	     nbUselessRevisions=27095  nbAssignments=282  nbFailedAssignments=30  nbBacktracks=168  nbVisitedNodes=309
1.10	     nbRestartNogoods=7  mapSize=49  nbInferences=0  nbTooLargeKeys=0
1.10	       =>  wckTime=0.243  cpuTime=0.2  mem=23M110
1.15	   
1.15	   search
1.15	     run=5  nbConstraintChecks=8399  nbValidityChecks=8278  nbPropagations=7653  nbRevisions=46638
1.15	     nbUselessRevisions=38921  nbAssignments=399  nbFailedAssignments=41  nbBacktracks=264  nbVisitedNodes=450
1.15	     nbRestartNogoods=8  mapSize=68  nbInferences=0  nbTooLargeKeys=0
1.15	       =>  wckTime=0.295  cpuTime=0.24  mem=23M110
1.18	   
1.18	   search
1.18	     run=6  nbConstraintChecks=10077  nbValidityChecks=10040  nbPropagations=10126  nbRevisions=63181
1.18	     nbUselessRevisions=52719  nbAssignments=497  nbFailedAssignments=48  nbBacktracks=353  nbVisitedNodes=559
1.18	     nbRestartNogoods=13  mapSize=82  nbInferences=0  nbTooLargeKeys=0
1.18	       =>  wckTime=0.323  cpuTime=0.27  mem=23M110
1.18	   
1.18	   global
1.18	     nbConstraintChecks=12091  nbValidityChecks=10827  nbPropagations=10633  nbRevisions=65590  nbUselessRevisions=54777
1.18	     nbRestartNogoods=13  solvingWckTime=0.324  solvingCpuTime=0.27  expiredTime=no  totalExploration=yes
1.18	     nbFoundSolutions=0  globalCpuTime=0.7
1.18	       =>  wckTime=0.877  cpuTime=0.65  mem=23M110
1.18	   
1.18	s UNSATISFIABLE
1.18	d NODES 497
1.18	d CHECKS 12091
1.18	   
1.18	   totalWckTime=0.954  totalCpuTime=0.7

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/node4/watcher-244414-1168385778 -o ROOT/results/node4/solver-244414-1168385778 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/244414-1168385778/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: 0.98 1.70 1.73 4/86 1642
/proc/meminfo: memFree=1769440/2055920 swapFree=4182144/4192956
[pid=1640] ppid=1635 vsize=168 CPUtime=0
/proc/1640/stat : 1640 (java) R 1635 1640 1529 0 -1 0 39 0 0 0 0 0 0 0 19 0 1 0 186973575 172032 23 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 10588459 0 0 4096 0 0 0 0 17 1 0 0
/proc/1640/statm: 42 23 18 14 0 2 0

[startup+0.111089 s]
/proc/loadavg: 0.98 1.70 1.73 4/86 1642
/proc/meminfo: memFree=1769440/2055920 swapFree=4182144/4192956
[pid=1640] ppid=1635 vsize=914988 CPUtime=0.09
/proc/1640/stat : 1640 (java) R 1635 1640 1529 0 -1 0 3024 0 1 0 7 2 0 0 22 0 8 0 186973575 936947712 2770 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4153550071 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/1640/statm: 228747 2770 1437 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.51913 s]
/proc/loadavg: 0.98 1.70 1.73 4/86 1642
/proc/meminfo: memFree=1769440/2055920 swapFree=4182144/4192956
[pid=1640] ppid=1635 vsize=915328 CPUtime=0.49
/proc/1640/stat : 1640 (java) R 1635 1640 1529 0 -1 0 6589 0 1 0 44 5 0 0 25 0 8 0 186973575 937295872 6328 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4152819950 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/1640/statm: 228832 6328 2141 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.2412
CPU time (s): 1.16782
CPU user time (s): 1.07384
CPU system time (s): 0.093985
CPU usage (%): 94.0881
Max. virtual memory (cumulated for all children) (KiB): 915556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.07384
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10816
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= 1149
involuntary context switches= 1268

runsolver used 0.003999 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node4 on Tue Jan  9 23:36:19 UTC 2007


IDJOB= 244414
IDBENCH= 8477
FILE ID= node4/244414-1168385778

PBS_JOBID= 3522618

Free space on /tmp= 66527 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/jnhUnsat/jnh06_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/244414-1168385778/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-244414-1168385778 -o ROOT/results/node4/solver-244414-1168385778 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/244414-1168385778/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  4893a5f43d25b7e9937cd4058fee716a

RANDOM SEED= 19668224

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		: 3000.223
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		: 3000.223
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:       1770256 kB
Buffers:         56128 kB
Cached:         131752 kB
SwapCached:       2520 kB
Active:         165780 kB
Inactive:        64220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1770256 kB
SwapTotal:     4192956 kB
SwapFree:      4182144 kB
Dirty:            5636 kB
Writeback:           0 kB
Mapped:          51756 kB
Slab:            40428 kB
Committed_AS:  5880996 kB
PageTables:       2336 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= 66527 MiB



End job on node4 on Tue Jan  9 23:36:22 UTC 2007