Trace number 1080251

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
MDG-noprobe 2008-06-27UNSAT 15.7856 15.924

DiagnosticValue
ASSIGNMENTS47859
CHECKS6655450

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-18_ext.xml
MD5SUMd0723849d67084a75f9aabd36744eddc
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 benchmark13.6269
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints55
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension55
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.20	c mistral-prime version 1.313
15.76/15.91	s UNSATISFIABLE
15.76/15.91	d CHECKS 6655449
15.76/15.91	d ASSIGNMENTS 47859

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-1080251-1215212473/watcher-1080251-1215212473 -o /tmp/evaluation-result-1080251-1215212473/solver-1080251-1215212473 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1080251-1215212473.xml -heu dom/wdeg -res no 

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: 1.99 1.98 1.99 4/81 22828
/proc/meminfo: memFree=1815928/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=820 CPUtime=0
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 2000221459 839680 25 996147200 134512640 135239859 4294956208 18446744073709551615 2495268 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 205 25 19 177 0 3 0

[startup+0.048624 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 22828
/proc/meminfo: memFree=1815928/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=5248 CPUtime=0.04
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 612 0 0 0 4 0 0 0 18 0 1 0 2000221459 5373952 578 996147200 134512640 135239859 4294956208 18446744073709551615 134670436 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1312 578 350 177 0 215 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5248

[startup+0.10163 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 22828
/proc/meminfo: memFree=1815928/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=6304 CPUtime=0.09
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 852 0 0 0 9 0 0 0 18 0 1 0 2000221459 6455296 818 996147200 134512640 135239859 4294956208 18446744073709551615 134670367 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1576 818 350 177 0 479 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6304

[startup+0.301651 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 22828
/proc/meminfo: memFree=1815928/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=0.28
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 28 0 0 0 19 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134820104 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7776

[startup+0.701695 s]
/proc/loadavg: 1.99 1.98 1.99 4/81 22828
/proc/meminfo: memFree=1815928/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=0.68
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 68 0 0 0 23 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 135013794 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 7776

[startup+1.50179 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812464/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=1.47
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 147 0 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134820011 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7776

[startup+3.10197 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812272/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=3.07
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 307 0 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 135013780 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 7776

[startup+6.30133 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812208/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=6.23
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 623 0 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134820071 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 7776

[startup+12.7011 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812080/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=12.59
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 1258 1 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134789505 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 7776

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

[startup+14.3062 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812144/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=14.17
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 1416 1 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134789570 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 14.17
Current children cumulated vsize (KiB) 7776

[startup+15.1013 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812144/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=14.97
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 1496 1 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134789544 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 14.97
Current children cumulated vsize (KiB) 7776

[startup+15.5024 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812144/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=15.36
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 1535 1 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 135096832 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 15.36
Current children cumulated vsize (KiB) 7776

[startup+15.9024 s]
/proc/loadavg: 1.99 1.98 1.99 3/82 22829
/proc/meminfo: memFree=1812144/2055920 swapFree=4180000/4192956
[pid=22828] ppid=22826 vsize=7776 CPUtime=15.76
/proc/22828/stat : 22828 (xsolve) R 22826 22828 20502 0 -1 4194304 1269 0 0 0 1575 1 0 0 25 0 1 0 2000221459 7962624 1235 996147200 134512640 135239859 4294956208 18446744073709551615 134819980 0 0 4096 0 0 0 0 17 1 0 0
/proc/22828/statm: 1944 1235 386 177 0 847 0
Current children cumulated CPU time (s) 15.76
Current children cumulated vsize (KiB) 7776

Child status: 0
Real time (s): 15.924
CPU time (s): 15.7856
CPU user time (s): 15.7736
CPU system time (s): 0.011998
CPU usage (%): 99.1311
Max. virtual memory (cumulated for all children) (KiB): 7776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.7736
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1285
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= 662

runsolver used 0.022996 second user time and 0.041993 second system time

The end

Launcher Data (download as text)

Begin job on node23 at 2008-07-05 01:01:13
IDJOB=1080251
IDBENCH=56947
IDSOLVER=343
FILE ID=node23/1080251-1215212473
PBS_JOBID= 7881678
Free space on /tmp= 66540 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-18_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1080251-1215212473/watcher-1080251-1215212473 -o /tmp/evaluation-result-1080251-1215212473/solver-1080251-1215212473 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1080251-1215212473.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d0723849d67084a75f9aabd36744eddc
RANDOM SEED=1075570738

node23.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		: 3000.216
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		: 3000.216
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:       1816408 kB
Buffers:         26700 kB
Cached:         134508 kB
SwapCached:       6548 kB
Active:         144920 kB
Inactive:        42768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816408 kB
SwapTotal:     4192956 kB
SwapFree:      4180000 kB
Dirty:            2168 kB
Writeback:           0 kB
Mapped:          42760 kB
Slab:            36936 kB
Committed_AS:  3472692 kB
PageTables:       1856 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= 66540 MiB
End job on node23 at 2008-07-05 01:01:29