Trace number 268827

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
VALCSP 3.1? (MO) 139.023 139.15

General information on the benchmark

Namefapp/fapp31-35/fapp34/
fapp34-0750-0.xml
MD5SUMf3b3ac2f1a9563b718ad49f1a2c0c6ad
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 benchmark5.09922
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables750
Number of constraints8639
Maximum constraint arity2
Maximum domain size998
Number of constraints which are defined in extension0
Number of constraints which are defined in intension8639
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node75/watcher-268827-1168979904 -o ROOT/results/node75/solver-268827-1168979904 -C 1800 -M 900 /tmp/evaluation/268827-1168979904/VALCSP /tmp/evaluation/268827-1168979904/unknown.xml 

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: 0.03 0.80 1.10 4/68 26832
/proc/meminfo: memFree=1780632/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=2392 CPUtime=0
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 332 0 0 0 0 0 0 0 20 0 1 0 246390834 2449408 310 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 598 320 64 8 0 270 0

[startup+0.102605 s]
/proc/loadavg: 0.03 0.80 1.10 4/68 26832
/proc/meminfo: memFree=1780632/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=16324 CPUtime=0.09
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 3790 0 0 0 8 1 0 0 20 0 1 0 246390834 16715776 3768 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 4081 3768 65 8 0 3753 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16324

[startup+0.51065 s]
/proc/loadavg: 0.03 0.80 1.10 4/68 26832
/proc/meminfo: memFree=1780632/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=18700 CPUtime=0.49
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 4376 0 0 0 48 1 0 0 25 0 1 0 246390834 19148800 4354 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528600 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 4675 4354 65 8 0 4347 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 18700

[startup+1.33075 s]
/proc/loadavg: 0.03 0.80 1.10 2/68 26832
/proc/meminfo: memFree=1758360/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=23716 CPUtime=1.32
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 5624 0 0 0 130 2 0 0 25 0 1 0 246390834 24285184 5602 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 5929 5602 65 8 0 5601 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 23716

[startup+2.96794 s]
/proc/loadavg: 0.03 0.80 1.10 2/68 26832
/proc/meminfo: memFree=1753496/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=32956 CPUtime=2.96
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 7941 0 0 0 293 3 0 0 25 0 1 0 246390834 33746944 7919 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 8239 7919 65 8 0 7911 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 32956

[startup+6.25033 s]
/proc/loadavg: 0.11 0.81 1.10 2/68 26832
/proc/meminfo: memFree=1730008/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=55924 CPUtime=6.24
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 13676 0 0 0 619 5 0 0 25 0 1 0 246390834 57266176 13654 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 13981 13654 65 8 0 13653 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 55924

[startup+12.7061 s]
/proc/loadavg: 0.18 0.81 1.10 2/68 26832
/proc/meminfo: memFree=1689240/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=96448 CPUtime=12.69
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 23814 0 0 0 1260 9 0 0 25 0 1 0 246390834 98762752 23792 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528688 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 24112 23792 65 8 0 23784 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 96448

[startup+25.5086 s]
/proc/loadavg: 0.36 0.82 1.09 2/68 26835
/proc/meminfo: memFree=1609176/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=172480 CPUtime=25.49
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 42837 0 0 0 2533 16 0 0 25 0 1 0 246390834 176619520 42815 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 43120 42815 65 8 0 42792 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 172480

[startup+51.1186 s]
/proc/loadavg: 0.58 0.83 1.09 2/68 26856
/proc/meminfo: memFree=1430544/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=353452 CPUtime=51.06
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 88055 0 0 0 5073 33 0 0 25 0 1 0 246390834 361934848 88033 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528694 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 88363 88033 65 8 0 88035 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 353452

[startup+102.337 s]
/proc/loadavg: 0.81 0.85 1.08 2/68 26876
/proc/meminfo: memFree=1098200/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=686620 CPUtime=102.24
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 171365 0 0 0 10159 65 0 0 25 0 1 0 246390834 703098880 171343 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 171655 171343 65 8 0 171327 0
Current children cumulated CPU time (s) 102.24
Current children cumulated vsize (KiB) 686620



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+139.009 s]
/proc/loadavg: 0.89 0.87 1.08 2/68 26907
/proc/meminfo: memFree=854296/2055920 swapFree=4184548/4192956
[pid=26831] ppid=26829 vsize=925540 CPUtime=138.88
/proc/26831/stat : 26831 (VALCSP) R 26829 26831 26518 0 -1 4194304 231093 0 0 0 13799 89 0 0 25 0 1 0 246390834 947752960 231071 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528604 0 0 4096 0 0 0 0 17 1 0 0
/proc/26831/statm: 231385 231071 65 8 0 231057 0
Current children cumulated CPU time (s) 138.88
Current children cumulated vsize (KiB) 925540

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 139.15
CPU time (s): 139.023
CPU user time (s): 137.994
CPU system time (s): 1.02884
CPU usage (%): 99.9087
Max. virtual memory (cumulated for all children) (KiB): 925540

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 137.994
system time used= 1.02884
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231093
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= 6
involuntary context switches= 500

runsolver used 0.146977 s user time and 0.356945 s system time

The end



Launcher Data (download as text)




Begin job on node75 on Tue Jan 16 20:38:30 UTC 2007


IDJOB= 268827
IDBENCH= 5450
IDSOLVER= 90
FILE ID= node75/268827-1168979904

PBS_JOBID= 3566242

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp31-35/fapp34/fapp34-0750-0.xml
COMMAND LINE= /tmp/evaluation/268827-1168979904/VALCSP /tmp/evaluation/268827-1168979904/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-268827-1168979904 -o ROOT/results/node75/solver-268827-1168979904 -C 1800 -M 900  /tmp/evaluation/268827-1168979904/VALCSP /tmp/evaluation/268827-1168979904/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  f3b3ac2f1a9563b718ad49f1a2c0c6ad

RANDOM SEED= 955056814

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		: 3000.218
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		: 3000.218
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:       1780992 kB
Buffers:         20584 kB
Cached:         177564 kB
SwapCached:       2452 kB
Active:          26116 kB
Inactive:       186388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1780992 kB
SwapTotal:     4192956 kB
SwapFree:      4184548 kB
Dirty:            1296 kB
Writeback:           0 kB
Mapped:          20880 kB
Slab:            48012 kB
Committed_AS:  5086312 kB
PageTables:       1636 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= 66563 MiB



End job on node75 on Tue Jan 16 20:40:56 UTC 2007