Trace number 234658

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
buggy_2_5_s 2007-01-08SAT 9.08562 9.09317

General information on the benchmark

Nametaillard/os-taillard-5/
os-taillard-5-105-7.xml
MD5SUM1b89f6066d9f44a18ca2af0b04a4a9d3
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 benchmark0.023995
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size312
Number of constraints which are defined in extension0
Number of constraints which are defined in intension100
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

SAT
92 181 0 249 46 116 64 0 277 200 175 0 94 245 268 181 198 263 94 14 116 213 274 0 64

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node25/watcher-234658-1168332936 -o ROOT/results/node25/solver-234658-1168332936 -C 1800 -M 900 /tmp/evaluation/234658-1168332936/solver2 /tmp/evaluation/234658-1168332936/unknown 1800 

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: 1.16 1.51 1.79 3/87 10752
/proc/meminfo: memFree=1070432/2055920 swapFree=4170860/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0
/proc/10751/stat : 10751 (solver2) S 10749 10751 8268 0 -1 4194304 331 190 0 0 0 0 0 0 16 0 1 0 181686165 5480448 241 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10751/statm: 1338 241 202 169 0 49 0
[pid=10755] ppid=10751 vsize=0 CPUtime=0
/proc/10755/stat : 10755 (rm) R 10751 10751 8268 0 -1 4194308 144 0 0 0 0 0 0 0 18 0 1 0 181686166 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/10755/statm: 0 0 0 0 0 0 0

[startup+0.10289 s]
/proc/loadavg: 1.16 1.51 1.79 3/87 10752
/proc/meminfo: memFree=1070432/2055920 swapFree=4170860/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0.01
/proc/10751/stat : 10751 (solver2) S 10749 10751 8268 0 -1 4194304 376 2228 0 0 0 0 0 1 16 0 1 0 181686165 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5352

[startup+0.510957 s]
/proc/loadavg: 1.16 1.51 1.79 3/87 10752
/proc/meminfo: memFree=1070432/2055920 swapFree=4170860/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0.12
/proc/10751/stat : 10751 (solver2) S 10749 10751 8268 0 -1 4194304 397 2848 0 0 0 0 5 7 15 0 1 0 181686165 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 5352

[startup+1.3341 s]
/proc/loadavg: 1.16 1.51 1.79 3/88 10765
/proc/meminfo: memFree=1069016/2055920 swapFree=4170860/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0.12
/proc/10751/stat : 10751 (solver2) S 10749 10751 8268 0 -1 4194304 397 2848 0 0 0 0 5 7 15 0 1 0 181686165 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/statm: 1338 242 203 169 0 49 0
[pid=10765] ppid=10751 vsize=3600 CPUtime=1.18
/proc/10765/stat : 10765 (standalone) R 10751 10751 8268 0 -1 4194304 364 0 0 0 117 1 0 0 25 0 1 0 181686179 3686400 339 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134947383 0 0 4096 0 0 0 0 17 1 0 0
/proc/10765/statm: 900 339 136 64 0 215 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 8952

[startup+2.97038 s]
/proc/loadavg: 1.16 1.51 1.79 3/88 10765
/proc/meminfo: memFree=1069016/2055920 swapFree=4170860/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0.12
/proc/10751/stat : 10751 (solver2) S 10749 10751 8268 0 -1 4194304 397 2848 0 0 0 0 5 7 15 0 1 0 181686165 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/statm: 1338 242 203 169 0 49 0
[pid=10765] ppid=10751 vsize=3600 CPUtime=2.82
/proc/10765/stat : 10765 (standalone) R 10751 10751 8268 0 -1 4194304 364 0 0 0 281 1 0 0 25 0 1 0 181686179 3686400 339 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134955938 0 0 4096 0 0 0 0 17 1 0 0
/proc/10765/statm: 900 339 136 64 0 215 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 8952

[startup+6.25393 s]
/proc/loadavg: 1.22 1.52 1.79 3/88 10765
/proc/meminfo: memFree=1069016/2055920 swapFree=4170860/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0.12
/proc/10751/stat : 10751 (solver2) S 10749 10751 8268 0 -1 4194304 397 2848 0 0 0 0 5 7 15 0 1 0 181686165 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 215781794628 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/statm: 1338 242 203 169 0 49 0
[pid=10765] ppid=10751 vsize=3600 CPUtime=6.1
/proc/10765/stat : 10765 (standalone) R 10751 10751 8268 0 -1 4194304 366 0 0 0 609 1 0 0 25 0 1 0 181686179 3686400 341 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134953027 0 0 4096 0 0 0 0 17 1 0 0
/proc/10765/statm: 900 341 136 64 0 215 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 8952

Child status: 0
Real time (s): 9.09317
CPU time (s): 9.08562
CPU user time (s): 8.97663
CPU system time (s): 0.108983
CPU usage (%): 99.9169
Max. virtual memory (cumulated for all children) (KiB): 8952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.97663
system time used= 0.108983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3633
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= 78
involuntary context switches= 40

runsolver used 0.010998 s user time and 0.028995 s system time

The end

Launcher Data (download as text)

Begin job on node25 on Tue Jan  9 08:55:38 UTC 2007


IDJOB= 234658
IDBENCH= 6702
FILE ID= node25/234658-1168332936

PBS_JOBID= 3503325

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-5/os-taillard-5-105-7.xml
COMMAND LINE= /tmp/evaluation/234658-1168332936/solver2 /tmp/evaluation/234658-1168332936/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-234658-1168332936 -o ROOT/results/node25/solver-234658-1168332936 -C 1800 -M 900  /tmp/evaluation/234658-1168332936/solver2 /tmp/evaluation/234658-1168332936/unknown 1800

META MD5SUM SOLVER= 2182e29fee250f6e45b9a85a6429fa3a
MD5SUM BENCH=  1b89f6066d9f44a18ca2af0b04a4a9d3

RANDOM SEED= 871231953

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		: 3000.279
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		: 3000.279
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:       1070848 kB
Buffers:         19208 kB
Cached:         881756 kB
SwapCached:       2280 kB
Active:         167768 kB
Inactive:       764004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1070848 kB
SwapTotal:     4192956 kB
SwapFree:      4170860 kB
Dirty:           12360 kB
Writeback:           0 kB
Mapped:          41328 kB
Slab:            38004 kB
Committed_AS:  3893528 kB
PageTables:       2276 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= 66553 MiB



End job on node25 on Tue Jan  9 08:55:47 UTC 2007