Trace number 244389

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 ACUNSAT 0.987849 1.01426

DiagnosticValue
CHECKS3368
NODES136

General information on the benchmark

Namedimacs/jnhUnsat/
jnh08_ext.xml
MD5SUMfe4ac7e7d484934900eb905dafaf569a
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 benchmark0.072987
SatisfiableNO
(Un)Satisfiability was proved
Number of variables100
Number of constraints849
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension849
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=mac.xml
0.32	   
0.32	   instance
0.32	     name=/tmp/evaluation/244389-1168085677/unknown.xml
0.35	   
0.35	   domains being loaded...
0.35	   
0.35	   variables being loaded...
0.39	     nbVariables=100  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.39	       =>  wckTime=0.092  cpuTime=0.08  mem=6M951
0.39	   
0.39	   relations being loaded...
0.43	   
0.43	   constraints being loaded...
0.60	     nbConstraints=849  nbRelationTypes=232  nbExtensionStructures=232  nbSharedExtensionStructures=617
0.60	     nbConflictsStructures=232  nbSharedConflictsStructures=617  nbSharedBinaryRepresentations=16  maxDegree=59
0.60	     maxArity=11
0.60	       =>  wckTime=0.303  cpuTime=0.21  mem=11M827
0.64	   
0.64	   solver IterativeSystematicSolver being built... 
0.84	       =>  wckTime=0.552  cpuTime=0.38  mem=22M30
0.86	   
0.86	   preprocessing
0.86	     nbConstraintChecks=20  nbPropagations=102  nbRevisions=11  nbUselessRevisions=7  nbRemovedValues=4
0.86	     detectedInconsistency=no
0.86	       =>  wckTime=0.014  cpuTime=0.01  mem=23M6
0.92	   
0.92	   search
0.92	     run=0  nbConstraintChecks=1168  nbValidityChecks=361  nbPropagations=287  nbRevisions=1242  nbUselessRevisions=1003
0.92	     nbAssignments=38  nbFailedAssignments=5  nbBacktracks=20  nbVisitedNodes=48  nbRestartNogoods=0  mapSize=6
0.92	     nbInferences=0  nbTooLargeKeys=0
0.92	       =>  wckTime=0.073  cpuTime=0.05  mem=23M6
0.94	   
0.94	   search
0.94	     run=1  nbConstraintChecks=1698  nbValidityChecks=757  nbPropagations=676  nbRevisions=3161  nbUselessRevisions=2564
0.94	     nbAssignments=73  nbFailedAssignments=9  nbBacktracks=41  nbVisitedNodes=89  nbRestartNogoods=3  mapSize=10
0.94	     nbInferences=0  nbTooLargeKeys=0
0.94	       =>  wckTime=0.094  cpuTime=0.06  mem=23M6
0.97	   
0.97	   search
0.97	     run=2  nbConstraintChecks=2988  nbValidityChecks=1950  nbPropagations=1260  nbRevisions=7262
0.97	     nbUselessRevisions=6069  nbAssignments=113  nbFailedAssignments=13  nbBacktracks=65  nbVisitedNodes=137
0.97	     nbRestartNogoods=5  mapSize=15  nbInferences=0  nbTooLargeKeys=0
0.97	       =>  wckTime=0.122  cpuTime=0.09  mem=23M6
0.98	   
0.98	   search
0.98	     run=3  nbConstraintChecks=3348  nbValidityChecks=2287  nbPropagations=1906  nbRevisions=11930
0.98	     nbUselessRevisions=10076  nbAssignments=136  nbFailedAssignments=15  nbBacktracks=87  nbVisitedNodes=162
0.98	     nbRestartNogoods=8  mapSize=17  nbInferences=0  nbTooLargeKeys=0
0.98	       =>  wckTime=0.131  cpuTime=0.09  mem=23M6
0.98	   
0.98	   global
0.98	     nbConstraintChecks=3368  nbValidityChecks=2287  nbPropagations=2008  nbRevisions=11941  nbUselessRevisions=10083
0.98	     nbRestartNogoods=8  solvingWckTime=0.133  solvingCpuTime=0.09  expiredTime=no  totalExploration=yes
0.98	     nbFoundSolutions=0  globalCpuTime=0.52
0.98	       =>  wckTime=0.685  cpuTime=0.47  mem=23M6
0.98	   
0.98	s UNSATISFIABLE
0.98	d NODES 136
0.98	d CHECKS 3368
0.98	   
0.98	   totalWckTime=0.761  totalCpuTime=0.53

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/node18/watcher-244389-1168085677 -o ROOT/results/node18/solver-244389-1168085677 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/244389-1168085677/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: 0.03 0.69 1.38 4/81 28118
/proc/meminfo: memFree=1105992/2055920 swapFree=4192812/4192956
[pid=28117] ppid=28115 vsize=1784 CPUtime=0
/proc/28117/stat : 28117 (java) R 28115 28117 27356 0 -1 0 324 0 0 0 0 0 0 0 18 0 1 0 156963436 1826816 119 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 134545583 0 0 4096 0 0 0 0 17 1 0 0
/proc/28117/statm: 446 124 92 14 0 91 0

[startup+0.102644 s]
/proc/loadavg: 0.03 0.69 1.38 4/81 28118
/proc/meminfo: memFree=1105992/2055920 swapFree=4192812/4192956
[pid=28117] ppid=28115 vsize=914988 CPUtime=0.09
/proc/28117/stat : 28117 (java) R 28115 28117 27356 0 -1 0 3072 0 1 0 7 2 0 0 16 0 8 0 156963436 936947712 2818 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/28117/statm: 228747 2818 1453 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.510682 s]
/proc/loadavg: 0.03 0.69 1.38 4/81 28118
/proc/meminfo: memFree=1105992/2055920 swapFree=4192812/4192956
[pid=28117] ppid=28115 vsize=915328 CPUtime=0.5
/proc/28117/stat : 28117 (java) S 28115 28117 27356 0 -1 0 6596 0 1 0 45 5 0 0 16 0 8 0 156963436 937295872 6335 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/28117/statm: 228832 6335 2141 14 0 215302 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.01426
CPU time (s): 0.987849
CPU user time (s): 0.899863
CPU system time (s): 0.087986
CPU usage (%): 97.396
Max. virtual memory (cumulated for all children) (KiB): 915552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.899863
system time used= 0.087986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10679
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= 762
involuntary context switches= 121

runsolver used 0 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Sat Jan  6 12:14:42 UTC 2007


IDJOB= 244389
IDBENCH= 8475
FILE ID= node18/244389-1168085677

PBS_JOBID= 3476247

Free space on /tmp= 66286 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/jnhUnsat/jnh08_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/244389-1168085677/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-244389-1168085677 -o ROOT/results/node18/solver-244389-1168085677 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/244389-1168085677/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  fe4ac7e7d484934900eb905dafaf569a

RANDOM SEED= 657461811

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		: 3000.231
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		: 3000.231
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:       1106472 kB
Buffers:         71020 kB
Cached:         718324 kB
SwapCached:          0 kB
Active:         442256 kB
Inactive:       408328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1106472 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3612 kB
Writeback:           0 kB
Mapped:          80208 kB
Slab:            84100 kB
Committed_AS:  4162208 kB
PageTables:       1920 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= 66286 MiB



End job on node18 on Sat Jan  6 12:14:59 UTC 2007