Trace number 1084052

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 1.313UNSAT 1.23681 1.25899

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-2.xml
MD5SUMc461fd9f78bea6a7f910d09245157b44
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.11883
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints14950
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14950
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.01	c mistral-prime version 1.313
0.88/0.94	s UNSATISFIABLE
0.88/0.94	d CHECKS 1
0.88/0.94	d ASSIGNMENTS 0

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-1084052-1215229819/watcher-1084052-1215229819 -o /tmp/evaluation-result-1084052-1215229819/solver-1084052-1215229819 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084052-1215229819.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 4/72 18275
/proc/meminfo: memFree=1730456/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=816 CPUtime=0
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2001956312 835584 25 996147200 134512640 135237403 4294956240 18446744073709551615 7861028 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 204 25 19 176 0 3 0

[startup+0.10645 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 18275
/proc/meminfo: memFree=1730456/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=7124 CPUtime=0.09
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 1110 0 0 0 9 0 0 0 19 0 1 0 2001956312 7294976 1076 996147200 134512640 135237403 4294956240 18446744073709551615 134614902 0 0 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 1781 1076 373 176 0 685 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7124

[startup+0.20247 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 18275
/proc/meminfo: memFree=1730456/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=9864 CPUtime=0.18
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 1768 0 0 0 18 0 0 0 20 0 1 0 2001956312 10100736 1734 996147200 134512640 135237403 4294956240 18446744073709551615 134614936 0 0 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 2466 1734 373 176 0 1370 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 9864

[startup+0.302491 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 18275
/proc/meminfo: memFree=1730456/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=12720 CPUtime=0.28
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 2507 0 0 0 27 1 0 0 21 0 1 0 2001956312 13025280 2407 996147200 134512640 135237403 4294956240 18446744073709551615 134619643 0 0 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 3180 2407 373 176 0 2084 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 12720

[startup+0.701559 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 18275
/proc/meminfo: memFree=1730456/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=28116 CPUtime=0.68
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 6525 0 0 0 64 4 0 0 25 0 1 0 2001956312 28790784 6232 996147200 134512640 135237403 4294956240 18446744073709551615 135103388 0 0 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 7029 6232 398 176 0 5933 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 28116

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

[startup+0.80158 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 18275
/proc/meminfo: memFree=1730456/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=58212 CPUtime=0.78
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 14036 0 0 0 71 7 0 0 25 0 1 0 2001956312 59609088 13743 996147200 134512640 135237403 4294956240 18446744073709551615 4159157504 0 0 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 14553 13743 398 176 0 13457 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 58212

[startup+1.20666 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 18276
/proc/meminfo: memFree=1634448/2055920 swapFree=4180540/4192956
[pid=18275] ppid=18273 vsize=24480 CPUtime=1.18
/proc/18275/stat : 18275 (xsolve) R 18273 18275 14608 0 -1 4194304 24674 0 0 0 104 14 0 0 25 0 1 0 2001956312 25067520 5354 996147200 134512640 135237403 4294956240 18446744073709551615 135001182 0 0 4096 0 0 0 0 17 1 0 0
/proc/18275/statm: 6120 5354 420 176 0 5024 0
Current children cumulated CPU time (s) 1.18
Current children cumulated vsize (KiB) 24480

Child status: 0
Real time (s): 1.25899
CPU time (s): 1.23681
CPU user time (s): 1.09083
CPU system time (s): 0.145977
CPU usage (%): 98.2383
Max. virtual memory (cumulated for all children) (KiB): 100848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09083
system time used= 0.145977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24677
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= 31

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node18 at 2008-07-05 05:50:19
IDJOB=1084052
IDBENCH=57522
IDSOLVER=358
FILE ID=node18/1084052-1215229819
PBS_JOBID= 7881725
Free space on /tmp= 66552 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084052-1215229819/watcher-1084052-1215229819 -o /tmp/evaluation-result-1084052-1215229819/solver-1084052-1215229819 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084052-1215229819.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= c461fd9f78bea6a7f910d09245157b44
RANDOM SEED=803915444

node18.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		: 3000.268
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	: 5931.00
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		: 3000.268
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:       1730936 kB
Buffers:         53736 kB
Cached:         181096 kB
SwapCached:       6568 kB
Active:         187952 kB
Inactive:        75712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730936 kB
SwapTotal:     4192956 kB
SwapFree:      4180540 kB
Dirty:            2728 kB
Writeback:           0 kB
Mapped:          36316 kB
Slab:            46672 kB
Committed_AS:  3620808 kB
PageTables:       1756 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= 66548 MiB
End job on node18 at 2008-07-05 05:50:21