Trace number 268462

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) 108.034 109.106

General information on the benchmark

Namefapp/fapp36-40/fapp40/
fapp40-3000-4.xml
MD5SUMfa5d20aaa304c41f344fcec6a220c998
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark50.0494
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables3000
Number of constraints53548
Maximum constraint arity2
Maximum domain size698
Number of constraints which are defined in extension0
Number of constraints which are defined in intension53548
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-268462-1168979101 -o ROOT/results/node75/solver-268462-1168979101 -C 1800 -M 900 /tmp/evaluation/268462-1168979101/VALCSP /tmp/evaluation/268462-1168979101/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: 1.60 1.47 1.10 4/68 25855
/proc/meminfo: memFree=1545368/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=2804 CPUtime=0
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 389 0 0 0 0 0 0 0 20 0 1 0 246309811 2871296 367 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/25854/statm: 701 374 64 8 0 373 0

[startup+0.106925 s]
/proc/loadavg: 1.60 1.47 1.10 4/68 25855
/proc/meminfo: memFree=1545368/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=83384 CPUtime=0.09
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 19466 0 0 0 2 7 0 0 20 0 1 0 246309811 85385216 19445 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134533499 0 0 4096 0 0 0 0 17 1 0 0
/proc/25854/statm: 20846 19451 64 8 0 20518 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 83384

[startup+0.514972 s]
/proc/loadavg: 1.60 1.47 1.10 4/68 25855
/proc/meminfo: memFree=1545368/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=149560 CPUtime=0.5
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 35432 0 0 0 37 13 0 0 25 0 1 0 246309811 153149440 35410 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/25854/statm: 37390 35410 65 8 0 37062 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 149560

[startup+1.34107 s]
/proc/loadavg: 1.60 1.47 1.10 2/69 25862
/proc/meminfo: memFree=1395088/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=155764 CPUtime=1.31
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 36982 0 0 0 116 15 0 0 25 0 1 0 246309811 159502336 36960 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/25854/statm: 38941 36960 65 8 0 38613 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 155764

[startup+2.97726 s]
/proc/loadavg: 1.60 1.47 1.10 3/73 25881
/proc/meminfo: memFree=1234216/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=167248 CPUtime=2.92
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 39851 0 0 0 276 16 0 0 25 0 1 0 246309811 171261952 39829 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 41812 39829 65 8 0 41484 0
Current children cumulated CPU time (s) 2.92
Current children cumulated vsize (KiB) 167248

[startup+6.25465 s]
/proc/loadavg: 1.63 1.48 1.10 3/73 25881
/proc/meminfo: memFree=1185896/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=194044 CPUtime=6.18
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 46543 0 0 0 598 20 0 0 25 0 1 0 246309811 198701056 46521 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528831 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 48511 46521 65 8 0 48183 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 194044

[startup+12.7154 s]
/proc/loadavg: 1.66 1.49 1.11 3/73 25881
/proc/meminfo: memFree=1089512/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=239320 CPUtime=12.58
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 57872 0 0 0 1234 24 0 0 25 0 1 0 246309811 245063680 57850 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 59830 57850 65 8 0 59502 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 239320

[startup+25.5269 s]
/proc/loadavg: 1.80 1.53 1.12 3/73 25881
/proc/meminfo: memFree=914856/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=333040 CPUtime=25.3
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 81286 0 0 0 2497 33 0 0 25 0 1 0 246309811 341032960 81264 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 83260 81264 65 8 0 82932 0
Current children cumulated CPU time (s) 25.3
Current children cumulated vsize (KiB) 333040

[startup+51.1549 s]
/proc/loadavg: 1.87 1.57 1.15 3/73 25881
/proc/meminfo: memFree=546280/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=519556 CPUtime=50.69
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 127911 0 0 0 5019 50 0 0 25 0 1 0 246309811 532025344 127889 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 129889 127889 65 8 0 129561 0
Current children cumulated CPU time (s) 50.69
Current children cumulated vsize (KiB) 519556

[startup+102.404 s]
/proc/loadavg: 1.94 1.63 1.19 3/73 25881
/proc/meminfo: memFree=15720/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=875296 CPUtime=101.46
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 216862 0 0 0 10063 83 0 0 25 0 1 0 246309811 896303104 216840 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 218824 216840 65 8 0 218496 0
Current children cumulated CPU time (s) 101.46
Current children cumulated vsize (KiB) 875296



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+108.966 s]
/proc/loadavg: 1.95 1.64 1.19 3/73 25881
/proc/meminfo: memFree=16232/2055920 swapFree=4184548/4192956
[pid=25854] ppid=25852 vsize=922156 CPUtime=107.89
/proc/25854/stat : 25854 (VALCSP) R 25852 25854 25641 0 -1 4194304 228585 0 0 0 10702 87 0 0 25 0 1 0 246309811 944287744 228563 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528582 0 0 4096 0 0 0 0 17 0 0 0
/proc/25854/statm: 230539 228563 65 8 0 230211 0
Current children cumulated CPU time (s) 107.89
Current children cumulated vsize (KiB) 922156

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 109.106
CPU time (s): 108.034
CPU user time (s): 107.025
CPU system time (s): 1.00885
CPU usage (%): 99.0171
Max. virtual memory (cumulated for all children) (KiB): 922156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 107.025
system time used= 1.00885
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 228585
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= 2603

runsolver used 0.090986 s user time and 0.305953 s system time

The end



Launcher Data (download as text)




Begin job on node75 on Tue Jan 16 20:25:04 UTC 2007


IDJOB= 268462
IDBENCH= 4165
IDSOLVER= 90
FILE ID= node75/268462-1168979101

PBS_JOBID= 3566219

Free space on /tmp= 66557 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp36-40/fapp40/fapp40-3000-4.xml
COMMAND LINE= /tmp/evaluation/268462-1168979101/VALCSP /tmp/evaluation/268462-1168979101/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-268462-1168979101 -o ROOT/results/node75/solver-268462-1168979101 -C 1800 -M 900  /tmp/evaluation/268462-1168979101/VALCSP /tmp/evaluation/268462-1168979101/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  fa5d20aaa304c41f344fcec6a220c998

RANDOM SEED= 771286319

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:       1545848 kB
Buffers:         41344 kB
Cached:         382904 kB
SwapCached:       2452 kB
Active:          36832 kB
Inactive:       401876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1545848 kB
SwapTotal:     4192956 kB
SwapFree:      4184548 kB
Dirty:            7592 kB
Writeback:           0 kB
Mapped:          20916 kB
Slab:            57016 kB
Committed_AS:  5086136 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= 66550 MiB



End job on node75 on Tue Jan 16 20:26:53 UTC 2007