Trace number 235262

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 9.99548 10.0938

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-100-1.xml
MD5SUM74cf29d3ab94d83fc52e373a6d01ad7d
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 benchmark0.428934
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size587
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
133 0 228 492 97 511 294 264 344 395 475 0 342 387 171 573 26 252 144 68 260 0 408 333 475 365 146 97 521 205 88 435 146 267 0 493 364 105 239 260 0 267 493 370 122 209 298 93 144 438 461 75 419 168 294 122 0 51 499 387 461 385 545 239 333 212 171 120 93 0 212 0 68 495 121 298 385 408 101 578 26 403 105 0 328 51 344 455 168 495 91 419 403 0 366 438 510 132 252 298

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/node51/watcher-235262-1168336745 -o ROOT/results/node51/solver-235262-1168336745 -C 1800 -M 900 /tmp/evaluation/235262-1168336745/solver /tmp/evaluation/235262-1168336745/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: 2.00 1.99 1.86 5/73 13672
/proc/meminfo: memFree=1770824/2055920 swapFree=4192812/4192956
[pid=13671] ppid=13669 vsize=5352 CPUtime=0
/proc/13671/stat : 13671 (solver) R 13669 13671 12436 0 -1 4194304 280 0 0 0 0 0 0 0 21 0 1 0 182073194 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371293343 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13671/statm: 1338 231 193 169 0 49 0
[pid=13673] ppid=13671 vsize=0 CPUtime=0
/proc/13673/stat : 13673 (solver) Z 13671 13671 12436 0 -1 4194380 26 0 0 0 0 0 0 0 15 0 1 0 182073195 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 65538 18446744071563351923 0 0 17 0 0 0
/proc/13673/statm: 0 0 0 0 0 0 0
[pid=13674] ppid=13671 vsize=5352 CPUtime=0
/proc/13674/stat : 13674 (solver) R 13671 13671 12436 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 182073195 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371293343 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13674/statm: 1338 231 193 169 0 49 0

[startup+0.10638 s]
/proc/loadavg: 2.00 1.99 1.86 5/73 13672
/proc/meminfo: memFree=1770824/2055920 swapFree=4192812/4192956
[pid=13671] ppid=13669 vsize=5352 CPUtime=0.03
/proc/13671/stat : 13671 (solver) S 13669 13671 12436 0 -1 4194304 376 2247 0 0 0 0 2 1 19 0 1 0 182073194 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371291460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13671/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5352

[startup+0.514444 s]
/proc/loadavg: 2.00 1.99 1.86 5/73 13672
/proc/meminfo: memFree=1770824/2055920 swapFree=4192812/4192956
[pid=13671] ppid=13669 vsize=5352 CPUtime=0.03
/proc/13671/stat : 13671 (solver) S 13669 13671 12436 0 -1 4194304 376 2247 0 0 0 0 2 1 19 0 1 0 182073194 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371291460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13671/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5352

[startup+1.33559 s]
/proc/loadavg: 2.00 1.99 1.86 3/74 13685
/proc/meminfo: memFree=1762304/2055920 swapFree=4192812/4192956
[pid=13671] ppid=13669 vsize=5352 CPUtime=0.74
/proc/13671/stat : 13671 (solver) S 13669 13671 12436 0 -1 4194304 396 5729 0 0 0 0 27 47 15 0 1 0 182073194 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371291460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13671/statm: 1338 242 203 169 0 49 0
[pid=13685] ppid=13671 vsize=10224 CPUtime=0.55
/proc/13685/stat : 13685 (standalone) R 13671 13671 12436 0 -1 4194304 1951 0 0 0 45 10 0 0 22 0 1 0 182073271 10469376 1925 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4153951816 0 0 4096 0 0 0 0 17 1 0 0
/proc/13685/statm: 2556 1925 136 64 0 1871 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 15576

[startup+2.98087 s]
/proc/loadavg: 2.00 1.99 1.86 3/74 13685
/proc/meminfo: memFree=1761664/2055920 swapFree=4192812/4192956
[pid=13671] ppid=13669 vsize=5352 CPUtime=0.74
/proc/13671/stat : 13671 (solver) S 13669 13671 12436 0 -1 4194304 396 5729 0 0 0 0 27 47 15 0 1 0 182073194 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371291460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13671/statm: 1338 242 203 169 0 49 0
[pid=13685] ppid=13671 vsize=10224 CPUtime=2.18
/proc/13685/stat : 13685 (standalone) R 13671 13671 12436 0 -1 4194304 1995 0 0 0 208 10 0 0 25 0 1 0 182073271 10469376 1969 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554217 0 0 4096 0 0 0 0 17 1 0 0
/proc/13685/statm: 2556 1969 137 64 0 1871 0
Current children cumulated CPU time (s) 2.92
Current children cumulated vsize (KiB) 15576

[startup+6.26243 s]
/proc/loadavg: 2.00 1.99 1.86 3/74 13685
/proc/meminfo: memFree=1761920/2055920 swapFree=4192812/4192956
[pid=13671] ppid=13669 vsize=5352 CPUtime=0.74
/proc/13671/stat : 13671 (solver) S 13669 13671 12436 0 -1 4194304 396 5729 0 0 0 0 27 47 15 0 1 0 182073194 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 235371291460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13671/statm: 1338 242 203 169 0 49 0
[pid=13685] ppid=13671 vsize=10224 CPUtime=5.43
/proc/13685/stat : 13685 (standalone) R 13671 13671 12436 0 -1 4194304 1995 0 0 0 533 10 0 0 25 0 1 0 182073271 10469376 1969 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554178 0 0 4096 0 0 0 0 17 1 0 0
/proc/13685/statm: 2556 1969 137 64 0 1871 0
Current children cumulated CPU time (s) 6.17
Current children cumulated vsize (KiB) 15576

Child status: 0
Real time (s): 10.0938
CPU time (s): 9.99548
CPU user time (s): 9.41057
CPU system time (s): 0.584911
CPU usage (%): 99.0261
Max. virtual memory (cumulated for all children) (KiB): 15576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.41057
system time used= 0.584911
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8146
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= 111
involuntary context switches= 236

runsolver used 0.014997 s user time and 0.034994 s system time

The end

Launcher Data (download as text)

Begin job on node51 on Tue Jan  9 09:59:06 UTC 2007


IDJOB= 235262
IDBENCH= 6754
FILE ID= node51/235262-1168336745

PBS_JOBID= 3503349

Free space on /tmp= 66550 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-100-1.xml
COMMAND LINE= /tmp/evaluation/235262-1168336745/solver /tmp/evaluation/235262-1168336745/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-235262-1168336745 -o ROOT/results/node51/solver-235262-1168336745 -C 1800 -M 900  /tmp/evaluation/235262-1168336745/solver /tmp/evaluation/235262-1168336745/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  74cf29d3ab94d83fc52e373a6d01ad7d

RANDOM SEED= 676754382

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		: 3000.277
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		: 3000.277
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:       1771304 kB
Buffers:         29748 kB
Cached:         156912 kB
SwapCached:          0 kB
Active:         136144 kB
Inactive:        91684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1771304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           10872 kB
Writeback:           0 kB
Mapped:          54772 kB
Slab:            42292 kB
Committed_AS:  4166452 kB
PageTables:       1776 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= 66549 MiB



End job on node51 on Tue Jan  9 09:59:17 UTC 2007