Trace number 1066177

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
spider 2008-06-14UNSAT 0.282956 0.297473

DiagnosticValue
ASSIGNMENTS253
CHECKS244562

General information on the benchmark

Namecsp/jnhUnsat/
normalized-jnh04_ext.xml
MD5SUMd81a4f28fa82d2d233a0f92a9091b666
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 benchmark0.042993
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints850
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension850
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.29	s UNSATISFIABLE
0.18/0.29	d CHECKS 244562
0.18/0.29	d ASSIGNMENTS 253

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1066177-1215147212/watcher-1066177-1215147212 -o /tmp/evaluation-result-1066177-1215147212/solver-1066177-1215147212 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/run -c HOME/instance-1066177-1215147212.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.91 1.98 2.10 4/73 25015
/proc/meminfo: memFree=1873752/2055920 swapFree=4179032/4192956
[pid=25015] ppid=25013 vsize=384 CPUtime=0
/proc/25015/stat : 25015 (ld-linux.so.2) R 25013 25015 22343 0 -1 4194304 291 0 0 0 0 0 0 0 18 0 1 0 626976877 393216 29 996147200 1448431616 1448550632 4294956288 18446744073709551615 1448524651 0 0 4096 0 0 0 0 17 0 0 0
/proc/25015/statm: 96 29 23 29 0 5 0

[startup+0.00899599 s]
/proc/loadavg: 1.91 1.98 2.10 4/73 25015
/proc/meminfo: memFree=1873752/2055920 swapFree=4179032/4192956
[pid=25015] ppid=25013 vsize=2532 CPUtime=0
/proc/25015/stat : 25015 (ld-linux.so.2) D 25013 25015 22343 0 -1 4194304 309 0 0 0 0 0 0 0 18 0 1 0 626976877 2592768 45 996147200 1448431616 1448550632 4294956288 18446744073709551615 1448524923 0 2147483391 4096 0 18446744072099855350 0 0 17 0 0 0
/proc/25015/statm: 633 45 33 29 0 13 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2532

[startup+0.102003 s]
/proc/loadavg: 1.91 1.98 2.10 4/73 25015
/proc/meminfo: memFree=1873752/2055920 swapFree=4179032/4192956
[pid=25015] ppid=25013 vsize=6488 CPUtime=0.08
/proc/25015/stat : 25015 (ld-linux.so.2) R 25013 25015 22343 0 -1 4194304 1219 0 3 0 7 1 0 0 18 0 1 0 626976877 6643712 953 996147200 1448431616 1448550632 4294956288 18446744073709551615 134544036 0 0 4096 0 0 0 0 17 0 0 0
/proc/25015/statm: 1622 953 342 29 0 612 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6488

Solver just ended. Dumping a history of the last processes samples

[startup+0.202014 s]
/proc/loadavg: 1.91 1.98 2.10 4/73 25015
/proc/meminfo: memFree=1873752/2055920 swapFree=4179032/4192956
[pid=25015] ppid=25013 vsize=6492 CPUtime=0.18
/proc/25015/stat : 25015 (ld-linux.so.2) R 25013 25015 22343 0 -1 4194304 1221 0 3 0 17 1 0 0 18 0 1 0 626976877 6647808 955 996147200 1448431616 1448550632 4294956288 18446744073709551615 134546832 0 0 4096 0 0 0 0 17 0 0 0
/proc/25015/statm: 1623 955 342 29 0 613 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6492

Child status: 0
Real time (s): 0.297473
CPU time (s): 0.282956
CPU user time (s): 0.267959
CPU system time (s): 0.014997
CPU usage (%): 95.1199
Max. virtual memory (cumulated for all children) (KiB): 6492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.267959
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1237
page faults= 3
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 39
involuntary context switches= 19

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node87 at 2008-07-04 06:53:32
IDJOB=1066177
IDBENCH=55102
IDSOLVER=328
FILE ID=node87/1066177-1215147212
PBS_JOBID= 7877252
Free space on /tmp= 66560 MiB

SOLVER NAME= spider 2008-06-14
BENCH NAME= CPAI08/csp/jnhUnsat/normalized-jnh04_ext.xml
COMMAND LINE= HOME/run -c BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1066177-1215147212/watcher-1066177-1215147212 -o /tmp/evaluation-result-1066177-1215147212/solver-1066177-1215147212 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/run -c HOME/instance-1066177-1215147212.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d81a4f28fa82d2d233a0f92a9091b666
RANDOM SEED=978420242

node87.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1874232 kB
Buffers:         14440 kB
Cached:          99784 kB
SwapCached:       8108 kB
Active:         102300 kB
Inactive:        30872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1874232 kB
SwapTotal:     4192956 kB
SwapFree:      4179032 kB
Dirty:            1516 kB
Writeback:           0 kB
Mapped:          24540 kB
Slab:            33840 kB
Committed_AS:  1545468 kB
PageTables:       1828 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264992 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB
End job on node87 at 2008-07-04 06:53:32