Trace number 2091918

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 1.545SAT 1.60076 1.60429

DiagnosticValue
ASSIGNMENTS14726
CHECKS12660400
NODES14726

General information on the benchmark

Namecsp/tightness0.1/
normalized-rand-2-40-8-753-100-56_ext.xml
MD5SUM39a0aab9c602f823f57dbbfd85b5cea4
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 benchmark1.10383
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints753
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension753
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
1.49/1.60	s SATISFIABLE
1.49/1.60	v 4 7 0 7 0 4 5 6 6 5 5 1 2 2 0 2 6 0 2 2 3 0 1 2 4 0 5 5 3 5 2 6 1 7 3 3 0 5 5 6
1.49/1.60	d CHECKS 12660428
1.49/1.60	d ASSIGNMENTS 14726
1.49/1.60	d NODES 14726 BACKTRACKS 14720 FAILURES 14720 RUNTIME 1.56 TOTALTIME 1.59 NODES/s 9439.74 CHECKS/s 8.11566e+06

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2091918-1247396881/watcher-2091918-1247396881 -o /tmp/evaluation-result-2091918-1247396881/solver-2091918-1247396881 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2091918-1247396881.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): 2000 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


[startup+0 s]
/proc/loadavg: 1.97 2.04 2.00 3/74 26747
/proc/meminfo: memFree=1775952/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=4804 CPUtime=0
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 252 0 0 0 0 0 0 0 18 0 1 0 26752062 4919296 231 996147200 1448431616 1448550632 4294956208 18446744073709551615 4159005008 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1201 238 206 29 0 16 0

[startup+0.0190261 s]
/proc/loadavg: 1.97 2.04 2.00 3/74 26747
/proc/meminfo: memFree=1775952/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=5208 CPUtime=0.01
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 493 0 0 0 1 0 0 0 18 0 1 0 26752062 5332992 472 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1302 472 367 29 0 117 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5208

[startup+0.102051 s]
/proc/loadavg: 1.97 2.04 2.00 3/74 26747
/proc/meminfo: memFree=1775952/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=6000 CPUtime=0.09
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 744 0 0 0 9 0 0 0 18 0 1 0 26752062 6144000 723 996147200 1448431616 1448550632 4294956208 18446744073709551615 135277936 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1500 723 413 29 0 315 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6000

[startup+0.301077 s]
/proc/loadavg: 1.97 2.04 2.00 3/74 26747
/proc/meminfo: memFree=1775952/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=6000 CPUtime=0.29
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 744 0 0 0 29 0 0 0 19 0 1 0 26752062 6144000 723 996147200 1448431616 1448550632 4294956208 18446744073709551615 134814488 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1500 723 413 29 0 315 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6000

[startup+0.701153 s]
/proc/loadavg: 1.97 2.04 2.00 3/74 26747
/proc/meminfo: memFree=1775952/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=6000 CPUtime=0.69
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 744 0 0 0 69 0 0 0 24 0 1 0 26752062 6144000 723 996147200 1448431616 1448550632 4294956208 18446744073709551615 134864864 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1500 723 413 29 0 315 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6000

[startup+1.50131 s]
/proc/loadavg: 1.97 2.04 2.00 3/75 26748
/proc/meminfo: memFree=1774784/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=6000 CPUtime=1.49
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 744 0 0 0 149 0 0 0 25 0 1 0 26752062 6144000 723 996147200 1448431616 1448550632 4294956208 18446744073709551615 134865162 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1500 723 413 29 0 315 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6000

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

[startup+1.60133 s]
/proc/loadavg: 1.97 2.04 2.00 3/75 26748
/proc/meminfo: memFree=1774784/2055920 swapFree=4192812/4192956
[pid=26747] ppid=26745 vsize=6004 CPUtime=1.59
/proc/26747/stat : 26747 (ld-linux.so.2) R 26745 26747 26405 0 -1 4194304 769 0 0 0 159 0 0 0 25 0 1 0 26752062 6148096 748 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26747/statm: 1501 752 441 29 0 316 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 6004

Child status: 0
Real time (s): 1.60429
CPU time (s): 1.60076
CPU user time (s): 1.59376
CPU system time (s): 0.006998
CPU usage (%): 99.7797
Max. virtual memory (cumulated for all children) (KiB): 6004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.59376
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 783
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= 15
involuntary context switches= 13

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node42 at 2009-07-12 13:08:01
IDJOB=2091918
IDBENCH=60182
IDSOLVER=769
FILE ID=node42/2091918-1247396881
PBS_JOBID= 9507409
Free space on /tmp= 66308 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/tightness0.1/normalized-rand-2-40-8-753-100-56_ext.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091918-1247396881/watcher-2091918-1247396881 -o /tmp/evaluation-result-2091918-1247396881/solver-2091918-1247396881 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2091918-1247396881.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 39a0aab9c602f823f57dbbfd85b5cea4
RANDOM SEED=2134613738

node42.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		: 3000.283
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		: 3000.283
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:       1776432 kB
Buffers:         34900 kB
Cached:         150808 kB
SwapCached:          0 kB
Active:         127220 kB
Inactive:       103768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1776432 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1900 kB
Writeback:           0 kB
Mapped:          56460 kB
Slab:            33712 kB
Committed_AS:   221032 kB
PageTables:       1868 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= 66304 MiB
End job on node42 at 2009-07-12 13:08:03