Trace number 235246

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 1.76073 1.77794

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-7.xml
MD5SUMcb5c2e7afef3a2e56bda1454eda70801
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 benchmark0.240963
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size625
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
539 176 321 188 460 0 582 391 83 268 149 0 548 223 362 280 249 460 91 342 0 253 384 161 301 470 506 77 65 97 336 164 89 433 0 321 509 488 401 238 391 89 506 554 153 238 307 205 56 0 474 193 401 172 161 0 97 342 269 541 91 348 268 542 181 419 0 509 447 76 379 474 0 496 176 521 269 97 83 65 367 481 548 572 280 0 521 97 193 433 0 367 249 509 307 419 516 172 439 76

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/node2/watcher-235246-1168336624 -o ROOT/results/node2/solver-235246-1168336624 -C 1800 -M 900 /tmp/evaluation/235246-1168336624/solver /tmp/evaluation/235246-1168336624/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: 2.20 2.06 2.01 3/94 14471
/proc/meminfo: memFree=1429120/2055920 swapFree=4191880/4192956
[pid=14470] ppid=14468 vsize=3004 CPUtime=0
/proc/14470/stat : 14470 (solver) R 14468 14470 12452 0 -1 4194304 56 0 0 0 0 0 0 0 21 0 1 0 182058158 3076096 40 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 206378694025 0 0 4096 0 0 0 0 17 1 0 0
/proc/14470/statm: 751 40 30 169 0 9 0

[startup+0.103309 s]
/proc/loadavg: 2.20 2.06 2.01 3/94 14471
/proc/meminfo: memFree=1429120/2055920 swapFree=4191880/4192956
[pid=14470] ppid=14468 vsize=5352 CPUtime=0.03
/proc/14470/stat : 14470 (solver) S 14468 14470 12452 0 -1 4194304 376 2247 0 0 0 0 2 1 20 0 1 0 182058158 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14470/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5352

[startup+0.511338 s]
/proc/loadavg: 2.20 2.06 2.01 3/94 14471
/proc/meminfo: memFree=1429120/2055920 swapFree=4191880/4192956
[pid=14470] ppid=14468 vsize=5352 CPUtime=0.03
/proc/14470/stat : 14470 (solver) S 14468 14470 12452 0 -1 4194304 376 2247 0 0 0 0 2 1 20 0 1 0 182058158 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14470/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5352

[startup+1.33249 s]
/proc/loadavg: 2.20 2.06 2.01 3/95 14484
/proc/meminfo: memFree=1420024/2055920 swapFree=4191880/4192956
[pid=14470] ppid=14468 vsize=5352 CPUtime=0.78
/proc/14470/stat : 14470 (solver) S 14468 14470 12452 0 -1 4194304 396 5871 0 0 0 0 27 51 15 0 1 0 182058158 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14470/statm: 1338 242 203 169 0 49 0
[pid=14484] ppid=14470 vsize=10656 CPUtime=0.51
/proc/14484/stat : 14484 (standalone) R 14470 14470 12452 0 -1 4194304 2056 0 0 0 40 11 0 0 22 0 1 0 182058238 10911744 2030 18446744073709551615 134512640 134775488 4294956880 18446744073709551615 4153565590 0 0 4096 0 0 0 0 17 1 0 0
/proc/14484/statm: 2664 2030 136 64 0 1979 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 16008

Child status: 0
Real time (s): 1.77794
CPU time (s): 1.76073
CPU user time (s): 1.12083
CPU system time (s): 0.639902
CPU usage (%): 99.0318
Max. virtual memory (cumulated for all children) (KiB): 16008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12083
system time used= 0.639902
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8395
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= 110
involuntary context switches= 91

runsolver used 0.005999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Jan  9 09:57:05 UTC 2007


IDJOB= 235246
IDBENCH= 6753
FILE ID= node2/235246-1168336624

PBS_JOBID= 3503087

Free space on /tmp= 66525 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-7.xml
COMMAND LINE= /tmp/evaluation/235246-1168336624/solver /tmp/evaluation/235246-1168336624/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-235246-1168336624 -o ROOT/results/node2/solver-235246-1168336624 -C 1800 -M 900  /tmp/evaluation/235246-1168336624/solver /tmp/evaluation/235246-1168336624/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  cb5c2e7afef3a2e56bda1454eda70801

RANDOM SEED= 187080533

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:       1429536 kB
Buffers:         74916 kB
Cached:         289748 kB
SwapCached:        292 kB
Active:         437040 kB
Inactive:       135760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1429536 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           10980 kB
Writeback:           0 kB
Mapped:         234220 kB
Slab:            37804 kB
Committed_AS:  5097764 kB
PageTables:       2752 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= 66524 MiB



End job on node2 on Tue Jan  9 09:57:07 UTC 2007