Trace number 202205

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 3.0? (MO) 77.7732 78.2628

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-3.xml
MD5SUMeac15b9896dc2f1c15c0eeb99084dc27
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 benchmark7.09492
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints26753
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension26753
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/node14/watcher-202205-1168150810 -o ROOT/results/node14/solver-202205-1168150810 -C 1800 -M 900 /tmp/evaluation/202205-1168150810/VALCSP /tmp/evaluation/202205-1168150810/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: 2.07 1.60 1.71 5/94 20302
/proc/meminfo: memFree=1052536/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=3612 CPUtime=0
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 633 0 0 0 0 0 0 0 20 0 1 0 163475910 3698688 611 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 7362171 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 903 611 62 8 0 575 0

[startup+0.109174 s]
/proc/loadavg: 2.07 1.60 1.71 5/94 20302
/proc/meminfo: memFree=1052536/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=51100 CPUtime=0.1
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 12521 0 0 0 2 8 0 0 20 0 1 0 163475910 52326400 12499 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 7362171 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 12775 12499 62 8 0 12447 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 51100

[startup+0.518201 s]
/proc/loadavg: 2.07 1.60 1.71 5/94 20302
/proc/meminfo: memFree=1052536/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=64928 CPUtime=0.5
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 15817 0 0 0 40 10 0 0 24 0 1 0 163475910 66486272 15795 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 7362171 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 16232 15795 65 8 0 15904 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 64928

[startup+1.34027 s]
/proc/loadavg: 2.07 1.60 1.71 3/94 20302
/proc/meminfo: memFree=982584/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=74168 CPUtime=1.31
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 18151 0 0 0 120 11 0 0 25 0 1 0 163475910 75948032 18129 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530919 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 18542 18129 65 8 0 18214 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 74168

[startup+2.98744 s]
/proc/loadavg: 2.07 1.60 1.71 3/94 20302
/proc/meminfo: memFree=970232/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=91988 CPUtime=2.94
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 22591 0 0 0 280 14 0 0 25 0 1 0 163475910 94195712 22569 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530252 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 22997 22569 65 8 0 22669 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 91988

[startup+6.26674 s]
/proc/loadavg: 2.07 1.60 1.71 3/94 20302
/proc/meminfo: memFree=933112/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=128420 CPUtime=6.2
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 31709 0 0 0 601 19 0 0 25 0 1 0 163475910 131502080 31687 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 32105 31687 65 8 0 31777 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 128420

[startup+12.7323 s]
/proc/loadavg: 2.06 1.61 1.71 4/94 20302
/proc/meminfo: memFree=860088/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=197324 CPUtime=12.6
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 48932 0 0 0 1231 29 0 0 25 0 1 0 163475910 202059776 48910 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 49331 48910 65 8 0 49003 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 197324

[startup+25.5746 s]
/proc/loadavg: 2.05 1.63 1.72 3/94 20302
/proc/meminfo: memFree=723064/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=338564 CPUtime=25.33
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 84255 0 0 0 2484 49 0 0 25 0 1 0 163475910 346689536 84233 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530216 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 84641 84233 65 8 0 84313 0
Current children cumulated CPU time (s) 25.33
Current children cumulated vsize (KiB) 338564

[startup+51.2328 s]
/proc/loadavg: 2.03 1.66 1.72 3/94 20302
/proc/meminfo: memFree=435512/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=623156 CPUtime=50.87
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 155398 0 0 0 4999 88 0 0 25 0 1 0 163475910 638111744 155376 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530252 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 155789 155376 65 8 0 155461 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 623156



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+78.1134 s]
/proc/loadavg: 2.02 1.68 1.73 3/94 20302
/proc/meminfo: memFree=131064/2055920 swapFree=4182236/4192956
[pid=20301] ppid=20299 vsize=921616 CPUtime=77.62
/proc/20301/stat : 20301 (VALCSP) R 20299 20301 19909 0 -1 4194304 230028 0 0 0 7630 132 0 0 25 0 1 0 163475910 943734784 230006 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/20301/statm: 230404 230006 65 8 0 230076 0
Current children cumulated CPU time (s) 77.62
Current children cumulated vsize (KiB) 921616

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 78.2628
CPU time (s): 77.7732
CPU user time (s): 76.3064
CPU system time (s): 1.46678
CPU usage (%): 99.3744
Max. virtual memory (cumulated for all children) (KiB): 921616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 76.3064
system time used= 1.46678
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230028
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= 2609

runsolver used 0.085986 s user time and 0.228965 s system time

The end



Launcher Data (download as text)




Begin job on node14 on Sun Jan  7 06:20:10 UTC 2007


IDJOB= 202205
IDBENCH= 3819
FILE ID= node14/202205-1168150810

PBS_JOBID= 3478218

Free space on /tmp= 66316 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-3.xml
COMMAND LINE= /tmp/evaluation/202205-1168150810/VALCSP /tmp/evaluation/202205-1168150810/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-202205-1168150810 -o ROOT/results/node14/solver-202205-1168150810 -C 1800 -M 900  /tmp/evaluation/202205-1168150810/VALCSP /tmp/evaluation/202205-1168150810/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  eac15b9896dc2f1c15c0eeb99084dc27

RANDOM SEED= 762161513

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		: 3000.227
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		: 3000.227
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:       1052952 kB
Buffers:         35816 kB
Cached:         215656 kB
SwapCached:       4208 kB
Active:         829276 kB
Inactive:       100028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1052952 kB
SwapTotal:     4192956 kB
SwapFree:      4182236 kB
Dirty:            3776 kB
Writeback:           0 kB
Mapped:         693340 kB
Slab:            56964 kB
Committed_AS:  5686748 kB
PageTables:       3696 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= 66316 MiB



End job on node14 on Sun Jan  7 06:21:28 UTC 2007