Trace number 218840

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 ACSAT 1.09083 1.12394

DiagnosticValue
CHECKS8399
NODES186

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=mac.xml
0.33	   
0.34	   instance
0.34	     name=/tmp/evaluation/218840-1168079730/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
0.41	       =>  wckTime=0.102  cpuTime=0.08  mem=6M951
0.41	   
0.41	   predicates being loaded...
0.41	   
0.41	   constraints being loaded...
0.73	     nbConstraints=784  nbConflictsStructures=1  nbSharedConflictsStructures=783  nbSharedBinaryRepresentations=0
0.73	     nbEvaluationManagers=1  nbSharedEvaluationManagers=783  maxDegree=49  maxArity=4
0.73	       =>  wckTime=0.431  cpuTime=0.31  mem=22M587
0.78	   
0.78	   solver IterativeSystematicSolver being built... 
0.97	       =>  wckTime=0.667  cpuTime=0.46  mem=19M989
0.98	   
0.98	   preprocessing
0.98	     nbConstraintChecks=0  nbPropagations=64  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.98	     detectedInconsistency=no
0.98	       =>  wckTime=0.013  cpuTime=0.0  mem=19M989
1.04	   
1.04	   search
1.04	     run=0  nbConstraintChecks=1200  nbValidityChecks=1043  nbPropagations=197  nbRevisions=896  nbUselessRevisions=736
1.04	     nbAssignments=44  nbFailedAssignments=9  nbBacktracks=18  nbVisitedNodes=61  nbRestartNogoods=0  mapSize=12
1.04	     nbInferences=0  nbTooLargeKeys=0
1.04	       =>  wckTime=0.067  cpuTime=0.03  mem=20M964
1.07	   
1.07	   search
1.07	     run=1  nbConstraintChecks=5115  nbValidityChecks=4079  nbPropagations=593  nbRevisions=4352
1.07	     nbUselessRevisions=3812  nbAssignments=113  nbFailedAssignments=19  nbBacktracks=39  nbVisitedNodes=148
1.07	     nbRestartNogoods=1  mapSize=25  nbInferences=0  nbTooLargeKeys=0
1.07	       =>  wckTime=0.1  cpuTime=0.05  mem=20M964
1.09	   
1.09	   search
1.09	     run=2  nbConstraintChecks=8399  nbValidityChecks=6021  nbPropagations=1134  nbRevisions=9273
1.09	     nbUselessRevisions=8224  nbAssignments=186  nbFailedAssignments=26  nbBacktracks=41  nbVisitedNodes=230
1.09	     nbRestartNogoods=3  mapSize=27  nbInferences=0  nbTooLargeKeys=0
1.09	       =>  wckTime=0.118  cpuTime=0.07  mem=20M964
1.09	   
1.09	   global
1.09	     nbConstraintChecks=8399  nbValidityChecks=6021  nbPropagations=1198  nbRevisions=9273  nbUselessRevisions=8224
1.09	     nbRestartNogoods=3  solvingWckTime=0.12  solvingCpuTime=0.07  expiredTime=no  totalExploration=no
1.09	     nbFoundSolutions=1  globalCpuTime=0.58
1.09	       =>  wckTime=0.789  cpuTime=0.53  mem=20M964
1.09	   
1.09	s SATISFIABLE
1.09	v 1 1 0 2 2 1 1 2 0 2 0 1 1 1 2 1 1 0 1 2 0 2 2 1 2 2 0 0 0 0 1 1 0 0 1 0 1 2 1 2 2 1 1 1 2 0 2 0 1 0 0 1 2 2 0 0 0 2 2 1 0 2 1 0 
1.09	d NODES 186
1.09	d CHECKS 8399
1.09	   
1.09	   totalWckTime=0.868  totalCpuTime=0.58

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/node48/watcher-218840-1168079730 -o ROOT/results/node48/solver-218840-1168079730 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218840-1168079730/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: 0.70 0.97 0.99 3/68 32653
/proc/meminfo: memFree=1637320/2055920 swapFree=4192812/4192956
[pid=32652] ppid=32648 vsize=292 CPUtime=0
/proc/32652/stat : 32652 (java) R 32648 32652 32521 0 -1 0 229 0 0 0 0 0 0 0 20 0 1 0 156371696 299008 35 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 3531556 0 0 4096 0 0 0 0 17 1 0 0
/proc/32652/statm: 73 35 27 14 0 5 0

[startup+0.104996 s]
/proc/loadavg: 0.70 0.97 0.99 3/68 32653
/proc/meminfo: memFree=1637320/2055920 swapFree=4192812/4192956
[pid=32652] ppid=32648 vsize=914988 CPUtime=0.09
/proc/32652/stat : 32652 (java) R 32648 32652 32521 0 -1 0 3065 0 1 0 8 1 0 0 22 0 8 0 156371696 936947712 2811 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/32652/statm: 228747 2813 1452 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.514986 s]
/proc/loadavg: 0.70 0.97 0.99 3/68 32653
/proc/meminfo: memFree=1637320/2055920 swapFree=4192812/4192956
[pid=32652] ppid=32648 vsize=915328 CPUtime=0.49
/proc/32652/stat : 32652 (java) R 32648 32652 32521 0 -1 0 7328 0 1 0 44 5 0 0 18 0 8 0 156371696 937295872 7067 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/32652/statm: 228832 7067 2145 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.12394
CPU time (s): 1.09083
CPU user time (s): 0.959854
CPU system time (s): 0.13098
CPU usage (%): 97.0546
Max. virtual memory (cumulated for all children) (KiB): 915580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.959854
system time used= 0.13098
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10846
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= 1069
involuntary context switches= 1097

runsolver used 0.003999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node48 on Sat Jan  6 10:35:30 UTC 2007


IDJOB= 218840
IDBENCH= 5260
FILE ID= node48/218840-1168079730

PBS_JOBID= 3476138

Free space on /tmp= 66558 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 mac.xml 1 XSax /tmp/evaluation/218840-1168079730/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-218840-1168079730 -o ROOT/results/node48/solver-218840-1168079730 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218840-1168079730/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  ba689a08bb93415de74ab2650cffa70a

RANDOM SEED= 595071099

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		: 3000.218
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		: 3000.218
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:       1637920 kB
Buffers:         30716 kB
Cached:         294528 kB
SwapCached:          0 kB
Active:          70596 kB
Inactive:       274700 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1637920 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3856 kB
Writeback:           0 kB
Mapped:          30176 kB
Slab:            58384 kB
Committed_AS:  3124828 kB
PageTables:       1584 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= 66558 MiB



End job on node48 on Sat Jan  6 10:35:32 UTC 2007