Trace number 225713

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
Mistral 2006-12-04UNSAT 9.77351 9.80387

General information on the benchmark

Nametightness/tightness0.9/
rand-2-40-180-84-900-7_ext.xml
MD5SUMaf09c5e8d011acd1a0d78df9306bfbb2
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 benchmark2.42563
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	relations............. 0.47
0.47	c 	constraints........... 0.03
0.50	c Allocating memory
0.50	c 
0.50	c time limit = -1
0.50	c heuristic = dom/wdeg
0.50	c restart policy = No restart
0.50	c 
0.50	c Solving
0.50	c
9.79	s UNSATISFIABLE
9.79	d        UNSAT      2053 BTS       9.3 s

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/node61/watcher-225713-1168273156 -o ROOT/results/node61/solver-225713-1168273156 -C 1800 -M 900 /tmp/evaluation/225713-1168273156/mistral/bin/solver /tmp/evaluation/225713-1168273156/unknown.xml -v 1 

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: 1.20 1.18 1.65 5/81 8837
/proc/meminfo: memFree=1775752/2055920 swapFree=4192812/4192956
[pid=8836] ppid=8834 vsize=540 CPUtime=0
/proc/8836/stat : 8836 (solver) R 8834 8836 8375 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 175713522 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 10384164 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/8836/statm: 135 26 21 92 0 18 0

[startup+0.10382 s]
/proc/loadavg: 1.20 1.18 1.65 5/81 8837
/proc/meminfo: memFree=1775752/2055920 swapFree=4192812/4192956
[pid=8836] ppid=8834 vsize=8112 CPUtime=0.09
/proc/8836/stat : 8836 (solver) R 8834 8836 8375 0 -1 4194304 1097 0 0 0 9 0 0 0 18 0 1 0 175713522 8306688 1065 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4159420389 0 0 4096 0 0 0 0 17 1 0 0
/proc/8836/statm: 2028 1065 692 92 0 372 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8112

[startup+0.511893 s]
/proc/loadavg: 1.20 1.18 1.65 5/81 8837
/proc/meminfo: memFree=1775752/2055920 swapFree=4192812/4192956
[pid=8836] ppid=8834 vsize=12756 CPUtime=0.5
/proc/8836/stat : 8836 (solver) R 8834 8836 8375 0 -1 4194304 2275 0 0 0 49 1 0 0 22 0 1 0 175713522 13062144 2243 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 10813509 0 0 4096 0 0 0 0 17 1 0 0
/proc/8836/statm: 3189 2243 706 92 0 1533 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 12756

[startup+1.33303 s]
/proc/loadavg: 1.20 1.18 1.65 3/81 8837
/proc/meminfo: memFree=1769544/2055920 swapFree=4192812/4192956
[pid=8836] ppid=8834 vsize=12756 CPUtime=1.31
/proc/8836/stat : 8836 (solver) R 8834 8836 8375 0 -1 4194304 2278 0 0 0 130 1 0 0 25 0 1 0 175713522 13062144 2246 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637472 0 0 4096 0 0 0 0 17 1 0 0
/proc/8836/statm: 3189 2246 709 92 0 1533 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12756

[startup+2.97432 s]
/proc/loadavg: 1.34 1.21 1.66 3/81 8837
/proc/meminfo: memFree=1769480/2055920 swapFree=4192812/4192956
[pid=8836] ppid=8834 vsize=12756 CPUtime=2.95
/proc/8836/stat : 8836 (solver) R 8834 8836 8375 0 -1 4194304 2278 0 0 0 294 1 0 0 25 0 1 0 175713522 13062144 2246 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637079 0 0 4096 0 0 0 0 17 1 0 0
/proc/8836/statm: 3189 2246 709 92 0 1533 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 12756

[startup+6.25389 s]
/proc/loadavg: 1.34 1.21 1.66 2/68 8846
/proc/meminfo: memFree=1796848/2055920 swapFree=4192812/4192956
[pid=8836] ppid=8834 vsize=12756 CPUtime=6.22
/proc/8836/stat : 8836 (solver) R 8834 8836 8375 0 -1 4194304 2278 0 0 0 621 1 0 0 25 0 1 0 175713522 13062144 2246 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790399 0 0 4096 0 0 0 0 17 0 0 0
/proc/8836/statm: 3189 2246 709 92 0 1533 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 12756

Child status: 0
Real time (s): 9.80387
CPU time (s): 9.77351
CPU user time (s): 9.75752
CPU system time (s): 0.015997
CPU usage (%): 99.6903
Max. virtual memory (cumulated for all children) (KiB): 12760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.75752
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2289
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= 13
involuntary context switches= 217

runsolver used 0.012998 s user time and 0.027995 s system time

The end

Launcher Data (download as text)

Begin job on node61 on Mon Jan  8 16:19:17 UTC 2007


IDJOB= 225713
IDBENCH= 5888
FILE ID= node61/225713-1168273156

PBS_JOBID= 3483248

Free space on /tmp= 66516 MiB

BENCH NAME= HOME/pub/bench/CPAI06/tightness/tightness0.9/rand-2-40-180-84-900-7_ext.xml
COMMAND LINE= /tmp/evaluation/225713-1168273156/mistral/bin/solver /tmp/evaluation/225713-1168273156/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-225713-1168273156 -o ROOT/results/node61/solver-225713-1168273156 -C 1800 -M 900  /tmp/evaluation/225713-1168273156/mistral/bin/solver /tmp/evaluation/225713-1168273156/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  af09c5e8d011acd1a0d78df9306bfbb2

RANDOM SEED= 905274788

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		: 3000.259
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		: 3000.259
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:       1776232 kB
Buffers:         44828 kB
Cached:         131496 kB
SwapCached:          0 kB
Active:         145308 kB
Inactive:        78172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1776232 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6900 kB
Writeback:           0 kB
Mapped:          64976 kB
Slab:            41564 kB
Committed_AS:  4011000 kB
PageTables:       1876 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= 66518 MiB



End job on node61 on Mon Jan  8 16:19:27 UTC 2007