Trace number 1100787

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
Mistral-prime 1.313SAT 0.353945 0.35669

DiagnosticValue
ASSIGNMENTS163
CHECKS34597

General information on the benchmark

Namecsp/tightness0.9/
normalized-rand-2-40-180-84-900-91_ext.xml
MD5SUM1c4d52c30b8a01d9f2e798105238c847
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.353945
Satisfiable
(Un)Satisfiability was proved
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)

0.09/0.10	c mistral-prime version 1.313
0.28/0.33	s SATISFIABLE
0.28/0.33	v 162 124 66 105 159 141 98 120 133 130 43 118 75 24 177 126 99 133 125 31 0 173 35 149 170 50 6 0 10 69 55 113 12 6 129 69 138 30 72 159
0.28/0.33	d CHECKS 34597
0.28/0.33	d ASSIGNMENTS 163

Verifier Data (download as text)

OK

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-1100787-1215287716/watcher-1100787-1215287716 -o /tmp/evaluation-result-1100787-1215287716/solver-1100787-1215287716 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1100787-1215287716.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: 2.00 2.00 2.00 4/81 29814
/proc/meminfo: memFree=1546848/2055920 swapFree=4179912/4192956
[pid=29814] ppid=29812 vsize=4448 CPUtime=0
/proc/29814/stat : 29814 (xsolve) R 29812 29814 27488 0 -1 4194304 289 0 0 0 0 0 0 0 20 0 1 0 2007743999 4554752 256 996147200 134512640 135237403 4294956240 18446744073709551615 9812198 0 0 4096 0 0 0 0 17 1 0 0
/proc/29814/statm: 1112 256 220 176 0 16 0

[startup+0.0889041 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 29814
/proc/meminfo: memFree=1546848/2055920 swapFree=4179912/4192956
[pid=29814] ppid=29812 vsize=6444 CPUtime=0.08
/proc/29814/stat : 29814 (xsolve) R 29812 29814 27488 0 -1 4194304 921 0 0 0 8 0 0 0 20 0 1 0 2007743999 6598656 887 996147200 134512640 135237403 4294956240 18446744073709551615 134639472 0 0 4096 0 0 0 0 17 0 0 0
/proc/29814/statm: 1611 887 354 176 0 515 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6444

[startup+0.101897 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 29814
/proc/meminfo: memFree=1546848/2055920 swapFree=4179912/4192956
[pid=29814] ppid=29812 vsize=6848 CPUtime=0.09
/proc/29814/stat : 29814 (xsolve) R 29812 29814 27488 0 -1 4194304 996 0 0 0 9 0 0 0 20 0 1 0 2007743999 7012352 962 996147200 134512640 135237403 4294956240 18446744073709551615 134666575 0 0 4096 0 0 0 0 17 0 0 0
/proc/29814/statm: 1712 962 354 176 0 616 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6848

[startup+0.30193 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 29814
/proc/meminfo: memFree=1546848/2055920 swapFree=4179912/4192956
[pid=29814] ppid=29812 vsize=11484 CPUtime=0.28
/proc/29814/stat : 29814 (xsolve) R 29812 29814 27488 0 -1 4194304 2213 0 0 0 28 0 0 0 22 0 1 0 2007743999 11759616 2179 996147200 134512640 135237403 4294956240 18446744073709551615 134827728 0 0 4096 0 0 0 0 17 0 0 0
/proc/29814/statm: 2871 2179 397 176 0 1775 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11484

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

Child status: 0
Real time (s): 0.35669
CPU time (s): 0.353945
CPU user time (s): 0.342947
CPU system time (s): 0.010998
CPU usage (%): 99.2304
Max. virtual memory (cumulated for all children) (KiB): 11484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.342947
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2230
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= 7
involuntary context switches= 12

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node53 at 2008-07-05 21:55:17
IDJOB=1100787
IDBENCH=59972
IDSOLVER=358
FILE ID=node53/1100787-1215287716
PBS_JOBID= 7882263
Free space on /tmp= 65124 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/tightness0.9/normalized-rand-2-40-180-84-900-91_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1100787-1215287716/watcher-1100787-1215287716 -o /tmp/evaluation-result-1100787-1215287716/solver-1100787-1215287716 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1100787-1215287716.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 1c4d52c30b8a01d9f2e798105238c847
RANDOM SEED=304689217

node53.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		: 3000.222
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		: 3000.222
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:       1547264 kB
Buffers:         96388 kB
Cached:         323088 kB
SwapCached:       7428 kB
Active:         227008 kB
Inactive:       215608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1547264 kB
SwapTotal:     4192956 kB
SwapFree:      4179912 kB
Dirty:            2912 kB
Writeback:           0 kB
Mapped:          38788 kB
Slab:            51316 kB
Committed_AS:  4029096 kB
PageTables:       1828 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= 65124 MiB
End job on node53 at 2008-07-05 21:55:17