Trace number 243121

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 0.731888 0.759446

DiagnosticValue
CHECKS1234
NODES211

General information on the benchmark

Namedimacs/aim-50/
aim-50-2-0-unsat-1_ext.xml
MD5SUMd50579d0ac381f9ba19dcc2adbd4da33
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 benchmark0.017997
SatisfiableNO
(Un)Satisfiability was proved
Number of variables50
Number of constraints97
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension97
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.30	Abscon 109 (November, 2006)
0.30	   
0.30	   configuration
0.30	     name=esac.xml
0.32	   
0.32	   instance
0.33	     name=/tmp/evaluation/243121-1168383783/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=0.085  cpuTime=0.08  mem=6M951
0.38	   
0.38	   relations being loaded...
0.39	   
0.39	   constraints being loaded...
0.44	     nbConstraints=97  nbRelationTypes=11  nbExtensionStructures=11  nbSharedExtensionStructures=86
0.44	     nbConflictsStructures=11  nbSharedConflictsStructures=86  nbSharedBinaryRepresentations=0  maxDegree=6  maxArity=3
0.44	       =>  wckTime=0.141  cpuTime=0.12  mem=7M943
0.47	   
0.47	   solver IterativeSystematicSolver being built... 
0.65	       =>  wckTime=0.349  cpuTime=0.26  mem=15M432
0.67	   
0.67	   preprocessing
0.67	     nbConstraintChecks=218  nbValidityChecks=107  nbPropagations=173  nbRevisions=308  nbUselessRevisions=240
0.67	     nbSingletonTests=68  nbEffectiveSingletonTests=0  nbESACBranches=3  nbRemovedValues=0  detectedInconsistency=no
0.67	       =>  wckTime=0.022  cpuTime=0.01  mem=15M432
0.69	   
0.69	   search
0.69	     run=0  nbConstraintChecks=100  nbValidityChecks=115  nbPropagations=232  nbRevisions=475  nbUselessRevisions=355
0.69	     nbAssignments=29  nbFailedAssignments=3  nbBacktracks=12  nbVisitedNodes=38  nbRestartNogoods=0  mapSize=7
0.69	     nbInferences=0  nbTooLargeKeys=0
0.69	       =>  wckTime=0.039  cpuTime=0.02  mem=15M432
0.70	   
0.70	   search
0.70	     run=1  nbConstraintChecks=194  nbValidityChecks=243  nbPropagations=515  nbRevisions=1096  nbUselessRevisions=808
0.70	     nbAssignments=62  nbFailedAssignments=8  nbBacktracks=29  nbVisitedNodes=81  nbRestartNogoods=1  mapSize=16
0.70	     nbInferences=0  nbTooLargeKeys=0
0.70	       =>  wckTime=0.056  cpuTime=0.03  mem=15M432
0.71	   
0.71	   search
0.71	     run=2  nbConstraintChecks=359  nbValidityChecks=442  nbPropagations=890  nbRevisions=1924  nbUselessRevisions=1375
0.71	     nbAssignments=97  nbFailedAssignments=19  nbBacktracks=53  nbVisitedNodes=138  nbRestartNogoods=2  mapSize=37
0.71	     nbInferences=0  nbTooLargeKeys=0
0.71	       =>  wckTime=0.062  cpuTime=0.03  mem=15M432
0.72	   
0.72	   search
0.72	     run=3  nbConstraintChecks=728  nbValidityChecks=945  nbPropagations=1474  nbRevisions=3313  nbUselessRevisions=2291
0.72	     nbAssignments=151  nbFailedAssignments=33  nbBacktracks=90  nbVisitedNodes=223  nbRestartNogoods=2  mapSize=66
0.72	     nbInferences=0  nbTooLargeKeys=0
0.72	       =>  wckTime=0.071  cpuTime=0.04  mem=15M432
0.73	   
0.73	   search
0.73	     run=4  nbConstraintChecks=1016  nbValidityChecks=1374  nbPropagations=2230  nbRevisions=5164
0.73	     nbUselessRevisions=3495  nbAssignments=211  nbFailedAssignments=48  nbBacktracks=136  nbVisitedNodes=312
0.73	     nbRestartNogoods=4  mapSize=95  nbInferences=0  nbTooLargeKeys=0
0.73	       =>  wckTime=0.086  cpuTime=0.05  mem=15M432
0.74	   
0.74	   global
0.74	     nbConstraintChecks=1234  nbValidityChecks=1481  nbPropagations=2403  nbRevisions=5472  nbUselessRevisions=3735
0.74	     nbRestartNogoods=4  solvingWckTime=0.088  solvingCpuTime=0.05  expiredTime=no  totalExploration=yes
0.74	     nbFoundSolutions=0  globalCpuTime=0.36
0.74	       =>  wckTime=0.438  cpuTime=0.31  mem=15M432
0.74	   
0.74	s UNSATISFIABLE
0.74	d NODES 211
0.74	d CHECKS 1234
0.74	   
0.74	   totalWckTime=0.515  totalCpuTime=0.37

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/node11/watcher-243121-1168383783 -o ROOT/results/node11/solver-243121-1168383783 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/243121-1168383783/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: 0.56 0.82 0.96 3/81 5812
/proc/meminfo: memFree=1646568/2055920 swapFree=4192812/4192956
[pid=5811] ppid=5809 vsize=172 CPUtime=0
/proc/5811/stat : 5811 (java) R 5809 5811 5173 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 186773497 176128 24 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 7979307 0 0 4096 0 0 0 0 17 1 0 0
/proc/5811/statm: 43 24 18 14 0 3 0

[startup+0.103437 s]
/proc/loadavg: 0.56 0.82 0.96 3/81 5812
/proc/meminfo: memFree=1646568/2055920 swapFree=4192812/4192956
[pid=5811] ppid=5809 vsize=914988 CPUtime=0.09
/proc/5811/stat : 5811 (java) R 5809 5811 5173 0 -1 0 3059 0 1 0 7 2 0 0 16 0 8 0 186773497 936947712 2805 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/5811/statm: 228747 2805 1449 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.511523 s]
/proc/loadavg: 0.56 0.82 0.96 3/81 5812
/proc/meminfo: memFree=1646568/2055920 swapFree=4192812/4192956
[pid=5811] ppid=5809 vsize=915464 CPUtime=0.48
/proc/5811/stat : 5811 (java) R 5809 5811 5173 0 -1 0 6708 0 1 0 45 3 0 0 17 0 8 0 186773497 937435136 6446 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072945829 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/5811/statm: 228866 6446 2379 14 0 215336 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 915464

Child status: 0
Real time (s): 0.759446
CPU time (s): 0.731888
CPU user time (s): 0.676897
CPU system time (s): 0.054991
CPU usage (%): 96.3713
Max. virtual memory (cumulated for all children) (KiB): 915464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.676897
system time used= 0.054991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8855
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= 556
involuntary context switches= 193

runsolver used 0.005999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node11 on Tue Jan  9 23:03:05 UTC 2007


IDJOB= 243121
IDBENCH= 7444
FILE ID= node11/243121-1168383783

PBS_JOBID= 3522540

Free space on /tmp= 66551 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-50/aim-50-2-0-unsat-1_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/243121-1168383783/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-243121-1168383783 -o ROOT/results/node11/solver-243121-1168383783 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/243121-1168383783/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  d50579d0ac381f9ba19dcc2adbd4da33

RANDOM SEED= 660818049

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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1647112 kB
Buffers:         58444 kB
Cached:         237424 kB
SwapCached:          0 kB
Active:         180840 kB
Inactive:       175544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1647112 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1920 kB
Writeback:           0 kB
Mapped:          79440 kB
Slab:            37400 kB
Committed_AS:  6367708 kB
PageTables:       2208 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= 66551 MiB



End job on node11 on Tue Jan  9 23:03:06 UTC 2007