Trace number 235294

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 2007-01-08SAT 2.05069 2.0716

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-5.xml
MD5SUM7b8cab6ec70ebd45de2b8c6678d6df2b
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 benchmark0.215966
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size565
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

SAT
399 454 165 328 0 92 106 362 427 246 299 106 454 320 175 227 539 9 243 421 155 102 399 0 374 466 156 175 224 315 352 232 0 59 387 425 165 438 283 263 354 374 417 169 314 275 511 263 0 92 354 438 224 158 511 536 239 75 0 328 258 383 75 480 316 221 0 447 169 275 315 283 0 413 246 164 98 51 387 498 398 258 362 511 447 0 436 163 352 71 299 492 529 409 165 59 0 379 75 227

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/node29/watcher-235294-1168337112 -o ROOT/results/node29/solver-235294-1168337112 -C 1800 -M 900 /tmp/evaluation/235294-1168337112/solver /tmp/evaluation/235294-1168337112/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: 1.20 1.06 1.22 7/88 7051
/proc/meminfo: memFree=1431704/2055920 swapFree=4191880/4192956
[pid=7049] ppid=7040 vsize=5352 CPUtime=0
/proc/7049/stat : 7049 (solver) S 7040 7049 5686 0 -1 4194304 331 190 0 0 0 0 0 0 20 0 1 0 182105540 5480448 241 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 221780697924 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/7049/statm: 1338 241 202 169 0 49 0
[pid=7054] ppid=7049 vsize=5352 CPUtime=0
/proc/7054/stat : 7054 (solver) R 7049 7049 5686 0 -1 4194368 21 0 0 0 0 0 0 0 23 0 1 0 182105541 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 221780700455 0 0 4096 0 0 0 0 17 1 0 0
/proc/7054/statm: 1338 242 203 169 0 49 0

[startup+0.106375 s]
/proc/loadavg: 1.20 1.06 1.22 7/88 7051
/proc/meminfo: memFree=1431704/2055920 swapFree=4191880/4192956
[pid=7049] ppid=7040 vsize=5352 CPUtime=0.02
/proc/7049/stat : 7049 (solver) S 7040 7049 5686 0 -1 4194304 376 2247 0 0 0 0 1 1 16 0 1 0 182105540 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 221780697924 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7049/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

[startup+0.514402 s]
/proc/loadavg: 1.20 1.06 1.22 7/88 7051
/proc/meminfo: memFree=1431704/2055920 swapFree=4191880/4192956
[pid=7049] ppid=7040 vsize=5352 CPUtime=0.02
/proc/7049/stat : 7049 (solver) S 7040 7049 5686 0 -1 4194304 376 2247 0 0 0 0 1 1 16 0 1 0 182105540 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 221780697924 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7049/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

[startup+1.33545 s]
/proc/loadavg: 1.20 1.06 1.22 3/88 7073
/proc/meminfo: memFree=1415064/2055920 swapFree=4191880/4192956
[pid=7049] ppid=7040 vsize=5352 CPUtime=0.78
/proc/7049/stat : 7049 (solver) S 7040 7049 5686 0 -1 4194304 396 5653 0 0 0 0 25 53 15 0 1 0 182105540 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 221780697924 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7049/statm: 1338 242 203 169 0 49 0
[pid=7072] ppid=7049 vsize=9984 CPUtime=0.51
/proc/7072/stat : 7072 (standalone) R 7049 7049 5686 0 -1 4194304 1892 0 0 0 39 12 0 0 21 0 1 0 182105622 10223616 1866 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4154262621 0 0 4096 0 0 0 0 17 1 0 0
/proc/7072/statm: 2496 1866 135 64 0 1811 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 15336

Child status: 0
Real time (s): 2.0716
CPU time (s): 2.05069
CPU user time (s): 1.38379
CPU system time (s): 0.666898
CPU usage (%): 98.9904
Max. virtual memory (cumulated for all children) (KiB): 15336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.38379
system time used= 0.666898
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8009
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= 105
involuntary context switches= 85

runsolver used 0.004999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node29 on Tue Jan  9 10:05:14 UTC 2007


IDJOB= 235294
IDBENCH= 6756
FILE ID= node29/235294-1168337112

PBS_JOBID= 3503378

Free space on /tmp= 66540 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-5.xml
COMMAND LINE= /tmp/evaluation/235294-1168337112/solver /tmp/evaluation/235294-1168337112/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-235294-1168337112 -o ROOT/results/node29/solver-235294-1168337112 -C 1800 -M 900  /tmp/evaluation/235294-1168337112/solver /tmp/evaluation/235294-1168337112/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  7b8cab6ec70ebd45de2b8c6678d6df2b

RANDOM SEED= 933325971

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		: 3000.241
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		: 3000.241
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:       1433392 kB
Buffers:         27588 kB
Cached:         481736 kB
SwapCached:        268 kB
Active:         168428 kB
Inactive:       398904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1433392 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           21708 kB
Writeback:           0 kB
Mapped:          75700 kB
Slab:            40180 kB
Committed_AS:  4020652 kB
PageTables:       2220 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= 66538 MiB



End job on node29 on Tue Jan  9 10:05:17 UTC 2007