Trace number 197921

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 0.937856 0.965905

DiagnosticValue
CHECKS116315
NODES170

General information on the benchmark

NamegolombRuler/golombRulerArity4/
ruler-17-7-a4.xml
MD5SUM229d1d88a2f8508f62fbcf57646d7c49
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.05499
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables7
Number of constraints196
Maximum constraint arity4
Maximum domain size18
Number of constraints which are defined in extension0
Number of constraints which are defined in intension196
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
0.30	     name=esac.xml
0.33	   
0.33	   instance
0.33	     name=/tmp/evaluation/197921-1168126471/unknown.xml
0.36	   
0.36	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.39	     nbVariables=7  nbDomainTypes=1  minDomainSize=18  maxDomainSize=18
0.39	       =>  wckTime=0.091  cpuTime=0.08  mem=6M951
0.39	   
0.39	   predicates being loaded...
0.39	   
0.39	   constraints being loaded...
0.53	     nbConstraints=91  nbMergedConstraints=105  nbConvertedConstraints=21  nbConvertConstraintsChecks=6156
0.53	     nbExtensionStructures=1  nbSharedExtensionStructures=20  nbConflictsStructures=2  nbSharedConflictsStructures=54
0.53	     nbUnbuiltConflictsStructures=1  nbSharedBinaryRepresentations=1  nbEvaluationManagers=2
0.53	     nbSharedEvaluationManagers=68  maxDegree=41  maxArity=4
0.53	       =>  wckTime=0.228  cpuTime=0.17  mem=8M902
0.56	   
0.56	   solver IterativeSystematicSolver being built... 
0.72	       =>  wckTime=0.424  cpuTime=0.31  mem=14M314
0.79	   
0.79	   preprocessing
0.79	     nbConstraintChecks=28230  nbValidityChecks=47442  nbPropagations=133  nbRevisions=7917  nbUselessRevisions=7544
0.79	     nbSingletonTests=33  nbEffectiveSingletonTests=5  nbESACBranches=10  nbRemovedValues=52  detectedInconsistency=no
0.79	       =>  wckTime=0.071  cpuTime=0.05  mem=14M314
0.83	   
0.83	   search
0.83	     run=0  nbConstraintChecks=16495  nbValidityChecks=30078  nbPropagations=258  nbRevisions=13750
0.83	     nbUselessRevisions=13042  nbAssignments=34  nbFailedAssignments=21  nbBacktracks=11  nbVisitedNodes=62
0.83	     nbRestartNogoods=0  mapSize=8  nbInferences=0  nbTooLargeKeys=0
0.83	       =>  wckTime=0.107  cpuTime=0.08  mem=15M289
0.88	   
0.88	   search
0.88	     run=1  nbConstraintChecks=48693  nbValidityChecks=83656  nbPropagations=717  nbRevisions=38418
0.88	     nbUselessRevisions=36416  nbAssignments=85  nbFailedAssignments=54  nbBacktracks=27  nbVisitedNodes=154
0.88	     nbRestartNogoods=4  mapSize=21  nbInferences=0  nbTooLargeKeys=0
0.88	       =>  wckTime=0.155  cpuTime=0.13  mem=15M289
0.92	   
0.92	   search
0.92	     run=2  nbConstraintChecks=79620  nbValidityChecks=137112  nbPropagations=1423  nbRevisions=76026
0.92	     nbUselessRevisions=72091  nbAssignments=147  nbFailedAssignments=92  nbBacktracks=50  nbVisitedNodes=266
0.92	     nbRestartNogoods=7  mapSize=42  nbInferences=0  nbTooLargeKeys=0
0.92	       =>  wckTime=0.202  cpuTime=0.17  mem=15M289
0.94	   
0.94	   search
0.94	     run=3  nbConstraintChecks=88085  nbValidityChecks=151496  nbPropagations=2209  nbRevisions=118113
0.94	     nbUselessRevisions=112042  nbAssignments=170  nbFailedAssignments=104  nbBacktracks=62  nbVisitedNodes=306
0.94	     nbRestartNogoods=9  mapSize=52  nbInferences=0  nbTooLargeKeys=0
0.94	       =>  wckTime=0.216  cpuTime=0.19  mem=15M289
0.94	   
0.94	   global
0.94	     nbConstraintChecks=116315  nbValidityChecks=198938  nbPropagations=2342  nbRevisions=126030
0.94	     nbUselessRevisions=119586  nbRestartNogoods=9  solvingWckTime=0.218  solvingCpuTime=0.19  expiredTime=no
0.94	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=0.55
0.94	       =>  wckTime=0.643  cpuTime=0.5  mem=15M289
0.94	   
0.94	s UNSATISFIABLE
0.94	d NODES 170
0.94	d CHECKS 116315
0.94	   
0.94	   totalWckTime=0.718  totalCpuTime=0.56

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-197921-1168126471 -o ROOT/results/node26/solver-197921-1168126471 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/197921-1168126471/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: 1.76 1.97 1.91 4/81 1820
/proc/meminfo: memFree=1602824/2055920 swapFree=4192812/4192956
[pid=1819] ppid=1817 vsize=1784 CPUtime=0
/proc/1819/stat : 1819 (java) R 1817 1819 1248 0 -1 0 152 0 0 0 0 0 0 0 19 0 1 0 161041427 1826816 124 18446744073709551615 134512640 134570532 4294956640 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/1819/statm: 446 124 92 14 0 91 0

[startup+0.107091 s]
/proc/loadavg: 1.76 1.97 1.91 4/81 1820
/proc/meminfo: memFree=1602824/2055920 swapFree=4192812/4192956
[pid=1819] ppid=1817 vsize=914988 CPUtime=0.09
/proc/1819/stat : 1819 (java) R 1817 1819 1248 0 -1 0 3075 0 1 0 7 2 0 0 16 0 8 0 161041427 936947712 2821 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/1819/statm: 228747 2821 1455 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.515131 s]
/proc/loadavg: 1.76 1.97 1.91 4/81 1820
/proc/meminfo: memFree=1602824/2055920 swapFree=4192812/4192956
[pid=1819] ppid=1817 vsize=915460 CPUtime=0.49
/proc/1819/stat : 1819 (java) S 1817 1819 1248 0 -1 0 6552 0 1 0 45 4 0 0 16 0 8 0 161041427 937431040 6291 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/1819/statm: 228865 6291 2166 14 0 215335 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 0.965905
CPU time (s): 0.937856
CPU user time (s): 0.862868
CPU system time (s): 0.074988
CPU usage (%): 97.0961
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.862868
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8707
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= 606
involuntary context switches= 86

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 Sat Jan  6 23:34:31 UTC 2007


IDJOB= 197921
IDBENCH= 3522
FILE ID= node26/197921-1168126471

PBS_JOBID= 3477479

Free space on /tmp= 66444 MiB

BENCH NAME= HOME/pub/bench/CPAI06/golombRuler/golombRulerArity4/ruler-17-7-a4.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/197921-1168126471/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-197921-1168126471 -o ROOT/results/node26/solver-197921-1168126471 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/197921-1168126471/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  229d1d88a2f8508f62fbcf57646d7c49

RANDOM SEED= 677570630

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:       1603304 kB
Buffers:         38912 kB
Cached:         292180 kB
SwapCached:          0 kB
Active:         233780 kB
Inactive:       162568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1603304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           97592 kB
Writeback:           0 kB
Mapped:          84280 kB
Slab:            41324 kB
Committed_AS:  2971000 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 Sat Jan  6 23:34:34 UTC 2007