Trace number 253100

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 0.71289 0.761084

DiagnosticValue
CHECKS8410
NODES31

General information on the benchmark

Namecoloring/
myciel-5g-3-ext.xml
MD5SUMe1aedd11c2458b29f711a3b3fe14039f
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.005998
SatisfiableNO
(Un)Satisfiability was proved
Number of variables47
Number of constraints236
Maximum constraint arity2
Maximum domain size3
Number of constraints which are defined in extension236
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
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/253100-1168409774/unknown.xml
0.37	   
0.37	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=47  nbDomainTypes=1  minDomainSize=3  maxDomainSize=3
0.41	       =>  wckTime=0.117  cpuTime=0.08  mem=6M951
0.41	   
0.41	   relations being loaded...
0.41	   
0.41	   constraints being loaded...
0.48	     nbConstraints=236  nbRelationTypes=1  nbExtensionStructures=1  nbSharedExtensionStructures=235
0.48	     nbConflictsStructures=1  nbSharedConflictsStructures=235  nbSharedBinaryRepresentations=3  maxDegree=23  maxArity=2
0.48	       =>  wckTime=0.186  cpuTime=0.13  mem=8M904
0.52	   
0.52	   solver IterativeSystematicSolver being built... 
0.68	       =>  wckTime=0.386  cpuTime=0.27  mem=14M490
0.72	   
0.72	   preprocessing
0.72	     nbConstraintChecks=3154  nbPropagations=515  nbRevisions=1606  nbUselessRevisions=898  nbSingletonTests=57
0.72	     nbEffectiveSingletonTests=0  nbESACBranches=10  nbRemovedValues=0  detectedInconsistency=no
0.72	       =>  wckTime=0.033  cpuTime=0.02  mem=14M490
0.73	   
0.73	   search
0.73	     run=0  nbConstraintChecks=3664  nbPropagations=979  nbRevisions=3838  nbUselessRevisions=2384  nbAssignments=18
0.74	     nbFailedAssignments=8  nbBacktracks=10  nbVisitedNodes=35  nbRestartNogoods=0  mapSize=10  nbInferences=0
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.052  cpuTime=0.03  mem=14M490
0.74	   
0.74	   search
0.74	     run=1  nbConstraintChecks=5256  nbPropagations=2126  nbRevisions=8610  nbUselessRevisions=5382  nbAssignments=31
0.74	     nbFailedAssignments=12  nbBacktracks=20  nbVisitedNodes=55  nbRestartNogoods=0  mapSize=17  nbInferences=0
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.059  cpuTime=0.04  mem=14M490
0.74	   
0.74	   global
0.74	     nbConstraintChecks=8410  nbPropagations=2641  nbRevisions=10216  nbUselessRevisions=6280  nbRestartNogoods=0
0.74	     solvingWckTime=0.06  solvingCpuTime=0.04  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.74	     globalCpuTime=0.36
0.74	       =>  wckTime=0.447  cpuTime=0.31  mem=14M490
0.75	   
0.75	s UNSATISFIABLE
0.75	d NODES 31
0.75	d CHECKS 8410
0.75	   
0.75	   totalWckTime=0.523  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/node30/watcher-253100-1168409774 -o ROOT/results/node30/solver-253100-1168409774 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/253100-1168409774/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: 1.68 1.94 1.88 4/94 28114
/proc/meminfo: memFree=1523496/2055920 swapFree=4167304/4192956
[pid=28113] ppid=28111 vsize=172 CPUtime=0
/proc/28113/stat : 28113 (java) R 28111 28113 27223 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 189371498 176128 24 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 7017252 0 0 4096 0 0 0 0 17 1 0 0
/proc/28113/statm: 73 31 25 14 0 3 0

[startup+0.104079 s]
/proc/loadavg: 1.68 1.94 1.88 4/94 28114
/proc/meminfo: memFree=1523496/2055920 swapFree=4167304/4192956
[pid=28113] ppid=28111 vsize=914988 CPUtime=0.08
/proc/28113/stat : 28113 (java) R 28111 28113 27223 0 -1 0 3023 0 1 0 7 1 0 0 22 0 8 0 189371498 936947712 2769 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4153609736 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28113/statm: 228747 2769 1437 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.514565 s]
/proc/loadavg: 1.68 1.94 1.88 4/94 28114
/proc/meminfo: memFree=1523496/2055920 swapFree=4167304/4192956
[pid=28113] ppid=28111 vsize=915328 CPUtime=0.46
/proc/28113/stat : 28113 (java) R 28111 28113 27223 0 -1 0 6510 0 1 0 43 3 0 0 23 0 8 0 189371498 937295872 6248 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28113/statm: 228832 6248 2161 14 0 215302 0
Current children cumulated CPU time (s) 0.46
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.761084
CPU time (s): 0.71289
CPU user time (s): 0.658899
CPU system time (s): 0.053991
CPU usage (%): 93.6677
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.658899
system time used= 0.053991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8567
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= 712
involuntary context switches= 763

runsolver used 0.001999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node30 on Wed Jan 10 06:16:14 UTC 2007


IDJOB= 253100
IDBENCH= 12979
FILE ID= node30/253100-1168409774

PBS_JOBID= 3523367

Free space on /tmp= 66487 MiB

BENCH NAME= HOME/pub/bench/CPAI06/coloring/myciel-5g-3-ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/253100-1168409774/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-253100-1168409774 -o ROOT/results/node30/solver-253100-1168409774 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/253100-1168409774/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  e1aedd11c2458b29f711a3b3fe14039f

RANDOM SEED= 623847614

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		: 3000.234
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		: 3000.234
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:       1524176 kB
Buffers:         39184 kB
Cached:         320464 kB
SwapCached:       2588 kB
Active:         243532 kB
Inactive:       234288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1524176 kB
SwapTotal:     4192956 kB
SwapFree:      4167304 kB
Dirty:            1896 kB
Writeback:           0 kB
Mapped:         142068 kB
Slab:            38484 kB
Committed_AS:  4896436 kB
PageTables:       2488 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= 66487 MiB



End job on node30 on Wed Jan 10 06:16:19 UTC 2007