Trace number 218839

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 ESACSAT 1.10983 1.12837

DiagnosticValue
CHECKS8393
NODES140

General information on the benchmark

NamechessboardColoration/
cc-8-8-3.xml
MD5SUMba689a08bb93415de74ab2650cffa70a
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.088986
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables64
Number of constraints784
Maximum constraint arity4
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension784
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/218839-1168253380/unknown.xml
0.36	   
0.36	   domains being loaded...
0.37	   
0.37	   variables being loaded...
0.40	     nbVariables=64  nbDomainTypes=1  minDomainSize=3  maxDomainSize=3
0.40	       =>  wckTime=0.101  cpuTime=0.1  mem=6M951
0.40	   
0.40	   predicates being loaded...
0.41	   
0.41	   constraints being loaded...
0.74	     nbConstraints=784  nbConflictsStructures=1  nbSharedConflictsStructures=783  nbSharedBinaryRepresentations=0
0.74	     nbEvaluationManagers=1  nbSharedEvaluationManagers=783  maxDegree=49  maxArity=4
0.74	       =>  wckTime=0.438  cpuTime=0.32  mem=22M587
0.79	   
0.79	   solver IterativeSystematicSolver being built... 
0.99	       =>  wckTime=0.687  cpuTime=0.49  mem=20M843
1.04	   
1.04	   preprocessing
1.04	     nbConstraintChecks=1038  nbValidityChecks=260  nbPropagations=221  nbRevisions=616  nbUselessRevisions=525
1.04	     nbSingletonTests=79  nbEffectiveSingletonTests=0  nbESACBranches=3  nbRemovedValues=0  detectedInconsistency=no
1.04	       =>  wckTime=0.052  cpuTime=0.03  mem=20M843
1.09	   
1.09	   search
1.09	     run=0  nbConstraintChecks=3877  nbValidityChecks=3023  nbPropagations=416  nbRevisions=3138
1.09	     nbUselessRevisions=2853  nbAssignments=68  nbFailedAssignments=7  nbBacktracks=13  nbVisitedNodes=82
1.09	     nbRestartNogoods=0  mapSize=10  nbInferences=0  nbTooLargeKeys=0
1.09	       =>  wckTime=0.101  cpuTime=0.06  mem=20M843
1.11	   
1.11	   search
1.11	     run=1  nbConstraintChecks=7355  nbValidityChecks=5511  nbPropagations=981  nbRevisions=8006
1.11	     nbUselessRevisions=7303  nbAssignments=140  nbFailedAssignments=12  nbBacktracks=16  nbVisitedNodes=162
1.11	     nbRestartNogoods=2  mapSize=13  nbInferences=0  nbTooLargeKeys=0
1.11	       =>  wckTime=0.121  cpuTime=0.07  mem=20M843
1.11	   
1.11	   global
1.11	     nbConstraintChecks=8393  nbValidityChecks=5771  nbPropagations=1202  nbRevisions=8622  nbUselessRevisions=7828
1.11	     nbRestartNogoods=2  solvingWckTime=0.122  solvingCpuTime=0.07  expiredTime=no  totalExploration=no
1.11	     nbFoundSolutions=1  globalCpuTime=0.6
1.11	       =>  wckTime=0.81  cpuTime=0.56  mem=20M843
1.11	   
1.11	s SATISFIABLE
1.11	v 0 1 1 2 0 2 2 2 2 2 1 1 0 1 0 1 1 2 0 0 1 2 1 1 2 1 2 0 1 1 0 0 2 0 1 0 0 0 1 2 0 2 0 1 1 0 0 2 1 2 2 1 2 0 2 0 2 1 0 1 0 2 1 0 
1.11	d NODES 140
1.11	d CHECKS 8393
1.11	   
1.11	   totalWckTime=0.888  totalCpuTime=0.61

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node29/watcher-218839-1168253380 -o ROOT/results/node29/solver-218839-1168253380 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218839-1168253380/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: 2.00 2.02 1.95 4/87 25525
/proc/meminfo: memFree=1244536/2055920 swapFree=4191880/4192956
[pid=25524] ppid=25522 vsize=172 CPUtime=0
/proc/25524/stat : 25524 (java) R 25522 25524 24713 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 173732151 176128 24 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4129572 0 0 4096 0 0 0 0 17 0 0 0
/proc/25524/statm: 43 24 18 14 0 3 0

[startup+0.108051 s]
/proc/loadavg: 2.00 2.02 1.95 4/87 25525
/proc/meminfo: memFree=1244536/2055920 swapFree=4191880/4192956
[pid=25524] ppid=25522 vsize=914988 CPUtime=0.09
/proc/25524/stat : 25524 (java) R 25522 25524 24713 0 -1 0 3048 0 1 0 7 2 0 0 23 0 8 0 173732151 936947712 2794 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/25524/statm: 228747 2796 1447 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.516075 s]
/proc/loadavg: 2.00 2.02 1.95 4/87 25525
/proc/meminfo: memFree=1244536/2055920 swapFree=4191880/4192956
[pid=25524] ppid=25522 vsize=915328 CPUtime=0.5
/proc/25524/stat : 25524 (java) R 25522 25524 24713 0 -1 0 7328 0 1 0 45 5 0 0 25 0 8 0 173732151 937295872 7067 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/25524/statm: 228832 7067 2145 14 0 215302 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.12837
CPU time (s): 1.10983
CPU user time (s): 0.989849
CPU system time (s): 0.119981
CPU usage (%): 98.357
Max. virtual memory (cumulated for all children) (KiB): 915580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.989849
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10865
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= 1144
involuntary context switches= 1179

runsolver used 0.002999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node29 on Mon Jan  8 10:49:41 UTC 2007


IDJOB= 218839
IDBENCH= 5260
FILE ID= node29/218839-1168253380

PBS_JOBID= 3481914

Free space on /tmp= 66548 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-8-8-3.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218839-1168253380/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-218839-1168253380 -o ROOT/results/node29/solver-218839-1168253380 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/218839-1168253380/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  ba689a08bb93415de74ab2650cffa70a

RANDOM SEED= 269560472

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		: 3000.241
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		: 3000.241
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:       1245016 kB
Buffers:         36740 kB
Cached:         530248 kB
SwapCached:        268 kB
Active:         299488 kB
Inactive:       458864 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1245016 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1868 kB
Writeback:           0 kB
Mapped:         210160 kB
Slab:            37008 kB
Committed_AS:  3899132 kB
PageTables:       2664 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= 66548 MiB



End job on node29 on Mon Jan  8 10:49:42 UTC 2007