Trace number 247680

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
buggy_2_5 2007-01-08UNSAT 4.69929 4.74375

General information on the benchmark

Namelangford/
langford-3-11-ext.xml
MD5SUMf047fc038009e372113925ae5ca60f88
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 benchmark1.69774
SatisfiableNO
(Un)Satisfiability was proved
Number of variables33
Number of constraints550
Maximum constraint arity2
Maximum domain size33
Number of constraints which are defined in extension550
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

UNSAT

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/node16/watcher-247680-1168383431 -o ROOT/results/node16/solver-247680-1168383431 -C 1800 -M 900 /tmp/evaluation/247680-1168383431/solver /tmp/evaluation/247680-1168383431/unknown 1800 

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: 0.72 0.88 0.91 5/87 22208
/proc/meminfo: memFree=1695456/2055920 swapFree=4191880/4192956
[pid=22207] ppid=22190 vsize=18540 CPUtime=0
/proc/22207/stat : 22207 (runsolver) R 22190 22207 20838 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 186738286 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 231962373415 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22207/statm: 4635 279 244 17 0 2626 0

[startup+0.104161 s]
/proc/loadavg: 0.72 0.88 0.91 5/87 22208
/proc/meminfo: memFree=1695456/2055920 swapFree=4191880/4192956
[pid=22207] ppid=22190 vsize=5352 CPUtime=0.02
/proc/22207/stat : 22207 (solver) S 22190 22207 20838 0 -1 4194304 376 2235 0 0 0 0 1 1 16 0 1 0 186738286 5480448 242 18446744073709551615 4194304 4889804 548682069344 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/22207/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

[startup+0.514079 s]
/proc/loadavg: 0.72 0.88 0.91 5/87 22208
/proc/meminfo: memFree=1695456/2055920 swapFree=4191880/4192956
[pid=22207] ppid=22190 vsize=5352 CPUtime=0.11
/proc/22207/stat : 22207 (solver) S 22190 22207 20838 0 -1 4194304 396 2800 0 0 0 0 6 5 16 0 1 0 186738286 5480448 242 18446744073709551615 4194304 4889804 548682069344 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22207/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 5352

[startup+1.33993 s]
/proc/loadavg: 0.72 0.88 0.91 3/88 22222
/proc/meminfo: memFree=1694616/2055920 swapFree=4191880/4192956
[pid=22207] ppid=22190 vsize=5352 CPUtime=0.11
/proc/22207/stat : 22207 (solver) S 22190 22207 20838 0 -1 4194304 396 2800 0 0 0 0 6 5 16 0 1 0 186738286 5480448 242 18446744073709551615 4194304 4889804 548682069344 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22207/statm: 1338 242 203 169 0 49 0
[pid=22222] ppid=22207 vsize=3400 CPUtime=1.18
/proc/22222/stat : 22222 (standalone) R 22207 22207 20838 0 -1 4194304 328 0 0 0 118 0 0 0 25 0 1 0 186738300 3481600 303 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134516969 0 0 4096 0 0 0 0 17 0 0 0
/proc/22222/statm: 850 303 137 64 0 165 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 8752

[startup+2.97663 s]
/proc/loadavg: 0.83 0.90 0.91 3/88 22222
/proc/meminfo: memFree=1693912/2055920 swapFree=4191880/4192956
[pid=22207] ppid=22190 vsize=5352 CPUtime=0.11
/proc/22207/stat : 22207 (solver) S 22190 22207 20838 0 -1 4194304 396 2800 0 0 0 0 6 5 16 0 1 0 186738286 5480448 242 18446744073709551615 4194304 4889804 548682069344 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22207/statm: 1338 242 203 169 0 49 0
[pid=22222] ppid=22207 vsize=3400 CPUtime=2.8
/proc/22222/stat : 22222 (standalone) R 22207 22207 20838 0 -1 4194304 328 0 0 0 280 0 0 0 25 0 1 0 186738300 3481600 303 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554163 0 0 4096 0 0 0 0 17 0 0 0
/proc/22222/statm: 850 303 137 64 0 165 0
Current children cumulated CPU time (s) 2.91
Current children cumulated vsize (KiB) 8752

Child status: 0
Real time (s): 4.74375
CPU time (s): 4.69929
CPU user time (s): 4.6283
CPU system time (s): 0.070989
CPU usage (%): 99.0627
Max. virtual memory (cumulated for all children) (KiB): 8752

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.6283
system time used= 0.070989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3542
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 78
involuntary context switches= 104

runsolver used 0.005999 s user time and 0.017997 s system time

The end

Launcher Data (download as text)

Begin job on node16 on Tue Jan  9 22:57:13 UTC 2007


IDJOB= 247680
IDBENCH= 11649
FILE ID= node16/247680-1168383431

PBS_JOBID= 3522502

Free space on /tmp= 66503 MiB

BENCH NAME= HOME/pub/bench/CPAI06/langford/langford-3-11-ext.xml
COMMAND LINE= /tmp/evaluation/247680-1168383431/solver /tmp/evaluation/247680-1168383431/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-247680-1168383431 -o ROOT/results/node16/solver-247680-1168383431 -C 1800 -M 900  /tmp/evaluation/247680-1168383431/solver /tmp/evaluation/247680-1168383431/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  f047fc038009e372113925ae5ca60f88

RANDOM SEED= 311900106

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		: 3000.220
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		: 3000.220
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:       1697392 kB
Buffers:         63336 kB
Cached:         193664 kB
SwapCached:        448 kB
Active:         215304 kB
Inactive:        89916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1697392 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           21196 kB
Writeback:           0 kB
Mapped:          66432 kB
Slab:            38492 kB
Committed_AS:  5705488 kB
PageTables:       2192 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= 66503 MiB



End job on node16 on Tue Jan  9 22:57:21 UTC 2007