Trace number 204126

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) 9.1956 9.2979

General information on the benchmark

Namedomino/
domino-800-800.xml
MD5SUM6472778b62dfa718a441514d3c300120
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 benchmark0.050991
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables800
Number of constraints800
Maximum constraint arity2
Maximum domain size800
Number of constraints which are defined in extension0
Number of constraints which are defined in intension800
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/node2/watcher-204126-1168165322 -o ROOT/results/node2/solver-204126-1168165322 -C 1800 -M 900 /tmp/evaluation/204126-1168165322/VALCSP /tmp/evaluation/204126-1168165322/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: 1.18 1.68 1.87 5/93 3481
/proc/meminfo: memFree=1221072/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=3712 CPUtime=0
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 663 0 0 0 0 0 0 0 20 0 1 0 164928274 3801088 641 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 10970747 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 928 641 62 8 0 600 0

[startup+0.107951 s]
/proc/loadavg: 1.18 1.68 1.87 5/93 3481
/proc/meminfo: memFree=1221072/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=29188 CPUtime=0.09
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 7052 0 0 0 6 3 0 0 20 0 1 0 164928274 29888512 7030 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530238 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 7297 7030 64 8 0 6969 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 29188

[startup+0.518026 s]
/proc/loadavg: 1.18 1.68 1.87 5/93 3481
/proc/meminfo: memFree=1221072/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=69844 CPUtime=0.5
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 17217 0 0 0 43 7 0 0 24 0 1 0 164928274 71520256 17195 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 10970747 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 17461 17195 64 8 0 17133 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 69844

[startup+1.34517 s]
/proc/loadavg: 1.25 1.68 1.88 3/93 3481
/proc/meminfo: memFree=1090000/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=152872 CPUtime=1.32
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 37967 0 0 0 116 16 0 0 25 0 1 0 164928274 156540928 37945 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 10970747 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 38218 37945 64 8 0 37890 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 152872

[startup+2.98248 s]
/proc/loadavg: 1.25 1.68 1.88 3/93 3481
/proc/meminfo: memFree=975760/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=317872 CPUtime=2.94
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 79216 0 0 0 262 32 0 0 25 0 1 0 164928274 325500928 79194 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530207 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 79468 79194 64 8 0 79140 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 317872

[startup+6.26908 s]
/proc/loadavg: 1.31 1.69 1.88 3/93 3481
/proc/meminfo: memFree=637328/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=644176 CPUtime=6.19
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 160793 0 0 0 554 65 0 0 25 0 1 0 164928274 659636224 160771 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 161044 160771 64 8 0 160716 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 644176



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+9.14061 s]
/proc/loadavg: 1.31 1.69 1.88 3/93 3481
/proc/meminfo: memFree=290256/2055920 swapFree=4191880/4192956
[pid=3480] ppid=3478 vsize=930352 CPUtime=9.04
/proc/3480/stat : 3480 (VALCSP) R 3478 3480 3317 0 -1 4194304 232330 0 0 0 812 92 0 0 25 0 1 0 164928274 952680448 232308 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530257 0 0 4096 0 0 0 0 17 1 0 0
/proc/3480/statm: 232588 232308 64 8 0 232260 0
Current children cumulated CPU time (s) 9.04
Current children cumulated vsize (KiB) 930352

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 9.2979
CPU time (s): 9.1956
CPU user time (s): 8.12077
CPU system time (s): 1.07484
CPU usage (%): 98.8998
Max. virtual memory (cumulated for all children) (KiB): 930352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.12077
system time used= 1.07484
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 232330
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= 548

runsolver used 0.020996 s user time and 0.033994 s system time

The end



Launcher Data (download as text)




Begin job on node2 on Sun Jan  7 10:22:06 UTC 2007


IDJOB= 204126
IDBENCH= 4002
FILE ID= node2/204126-1168165322

PBS_JOBID= 3478333

Free space on /tmp= 66333 MiB

BENCH NAME= HOME/pub/bench/CPAI06/domino/domino-800-800.xml
COMMAND LINE= /tmp/evaluation/204126-1168165322/VALCSP /tmp/evaluation/204126-1168165322/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-204126-1168165322 -o ROOT/results/node2/solver-204126-1168165322 -C 1800 -M 900  /tmp/evaluation/204126-1168165322/VALCSP /tmp/evaluation/204126-1168165322/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  6472778b62dfa718a441514d3c300120

RANDOM SEED= 356345983

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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1221552 kB
Buffers:         77340 kB
Cached:         601328 kB
SwapCached:        448 kB
Active:         381660 kB
Inactive:       383740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1221552 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:             372 kB
Writeback:           0 kB
Mapped:         114816 kB
Slab:            53428 kB
Committed_AS:  4718484 kB
PageTables:       2488 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= 66333 MiB



End job on node2 on Sun Jan  7 10:22:17 UTC 2007