Trace number 243082

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 0.728889 0.757537

DiagnosticValue
CHECKS691
NODES104

General information on the benchmark

Namedimacs/aim-50/
aim-50-2-0-unsat-4_ext.xml
MD5SUMf79cb268ee690a490b637d3dc655b044
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 benchmark0.016997
SatisfiableNO
(Un)Satisfiability was proved
Number of variables50
Number of constraints95
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension95
Number of constraints which are defined in intension0
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/243082-1168383734/unknown.xml
0.35	   
0.35	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.38	     nbVariables=50  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.38	       =>  wckTime=0.086  cpuTime=0.08  mem=6M951
0.38	   
0.38	   relations being loaded...
0.39	   
0.39	   constraints being loaded...
0.44	     nbConstraints=95  nbRelationTypes=13  nbExtensionStructures=13  nbSharedExtensionStructures=82
0.44	     nbConflictsStructures=13  nbSharedConflictsStructures=82  nbSharedBinaryRepresentations=5  maxDegree=6  maxArity=3
0.44	       =>  wckTime=0.144  cpuTime=0.12  mem=7M943
0.47	   
0.47	   solver IterativeSystematicSolver being built... 
0.64	       =>  wckTime=0.35  cpuTime=0.26  mem=15M428
0.67	   
0.67	   preprocessing
0.67	     nbConstraintChecks=186  nbValidityChecks=87  nbPropagations=156  nbRevisions=262  nbUselessRevisions=205
0.67	     nbSingletonTests=55  nbEffectiveSingletonTests=0  nbESACBranches=3  nbRemovedValues=0  detectedInconsistency=no
0.67	       =>  wckTime=0.022  cpuTime=0.02  mem=15M428
0.68	   
0.68	   search
0.68	     run=0  nbConstraintChecks=97  nbValidityChecks=81  nbPropagations=198  nbRevisions=370  nbUselessRevisions=273
0.68	     nbAssignments=23  nbFailedAssignments=5  nbBacktracks=15  nbVisitedNodes=35  nbRestartNogoods=0  mapSize=9
0.68	     nbInferences=0  nbTooLargeKeys=0
0.68	       =>  wckTime=0.034  cpuTime=0.03  mem=15M428
0.70	   
0.70	   search
0.70	     run=1  nbConstraintChecks=248  nbValidityChecks=282  nbPropagations=476  nbRevisions=962  nbUselessRevisions=687
0.70	     nbAssignments=49  nbFailedAssignments=11  nbBacktracks=30  nbVisitedNodes=76  nbRestartNogoods=1  mapSize=22
0.70	     nbInferences=0  nbTooLargeKeys=0
0.70	       =>  wckTime=0.053  cpuTime=0.04  mem=15M428
0.71	   
0.71	   search
0.71	     run=2  nbConstraintChecks=422  nbValidityChecks=513  nbPropagations=844  nbRevisions=1800  nbUselessRevisions=1246
0.71	     nbAssignments=86  nbFailedAssignments=21  nbBacktracks=56  nbVisitedNodes=135  nbRestartNogoods=3  mapSize=42
0.71	     nbInferences=0  nbTooLargeKeys=0
0.71	       =>  wckTime=0.061  cpuTime=0.04  mem=15M428
0.71	   
0.71	   search
0.71	     run=3  nbConstraintChecks=505  nbValidityChecks=608  nbPropagations=1249  nbRevisions=2738  nbUselessRevisions=1869
0.71	     nbAssignments=104  nbFailedAssignments=26  nbBacktracks=70  nbVisitedNodes=161  nbRestartNogoods=4  mapSize=50
0.71	     nbInferences=0  nbTooLargeKeys=0
0.71	       =>  wckTime=0.065  cpuTime=0.05  mem=15M428
0.71	   
0.71	   global
0.71	     nbConstraintChecks=691  nbValidityChecks=695  nbPropagations=1405  nbRevisions=3000  nbUselessRevisions=2074
0.71	     nbRestartNogoods=4  solvingWckTime=0.066  solvingCpuTime=0.05  expiredTime=no  totalExploration=yes
0.71	     nbFoundSolutions=0  globalCpuTime=0.36
0.71	       =>  wckTime=0.417  cpuTime=0.31  mem=15M428
0.71	   
0.71	s UNSATISFIABLE
0.71	d NODES 104
0.71	d CHECKS 691
0.71	   
0.72	   totalWckTime=0.493  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/node16/watcher-243082-1168383734 -o ROOT/results/node16/solver-243082-1168383734 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/243082-1168383734/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: 0.52 0.69 0.81 4/84 27544
/proc/meminfo: memFree=1717888/2055920 swapFree=4191880/4192956
[pid=27543] ppid=27541 vsize=172 CPUtime=0
/proc/27543/stat : 27543 (java) R 27541 27543 26840 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 186768210 176128 24 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 7205163 0 0 4096 0 0 0 0 17 1 0 0
/proc/27543/statm: 43 24 18 14 0 3 0

[startup+0.103751 s]
/proc/loadavg: 0.52 0.69 0.81 4/84 27544
/proc/meminfo: memFree=1717888/2055920 swapFree=4191880/4192956
[pid=27543] ppid=27541 vsize=914988 CPUtime=0.08
/proc/27543/stat : 27543 (java) R 27541 27543 26840 0 -1 0 3063 0 1 0 7 1 0 0 16 0 8 0 186768210 936947712 2809 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/27543/statm: 228747 2810 1451 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.51567 s]
/proc/loadavg: 0.52 0.69 0.81 4/84 27544
/proc/meminfo: memFree=1717888/2055920 swapFree=4191880/4192956
[pid=27543] ppid=27541 vsize=915400 CPUtime=0.5
/proc/27543/stat : 27543 (java) R 27541 27543 26840 0 -1 0 6725 0 1 0 46 4 0 0 16 0 8 0 186768210 937369600 6463 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4154281486 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/27543/statm: 228850 6463 2384 14 0 215320 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915400

Child status: 0
Real time (s): 0.757537
CPU time (s): 0.728889
CPU user time (s): 0.663899
CPU system time (s): 0.06499
CPU usage (%): 96.2183
Max. virtual memory (cumulated for all children) (KiB): 915400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.663899
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8841
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= 517
involuntary context switches= 127

runsolver used 0.001999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node16 on Tue Jan  9 23:02:14 UTC 2007


IDJOB= 243082
IDBENCH= 7441
FILE ID= node16/243082-1168383734

PBS_JOBID= 3522530

Free space on /tmp= 66522 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-50/aim-50-2-0-unsat-4_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/243082-1168383734/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-243082-1168383734 -o ROOT/results/node16/solver-243082-1168383734 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/243082-1168383734/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  f79cb268ee690a490b637d3dc655b044

RANDOM SEED= 444681508

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		: 3000.220
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		: 3000.220
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:       1718368 kB
Buffers:         64416 kB
Cached:         175720 kB
SwapCached:        448 kB
Active:         193220 kB
Inactive:        90948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1718368 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1884 kB
Writeback:           0 kB
Mapped:          62696 kB
Slab:            38396 kB
Committed_AS:  5726220 kB
PageTables:       2220 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= 66522 MiB



End job on node16 on Tue Jan  9 23:02:14 UTC 2007