Trace number 296264

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
saps 2007-02-08SAT 0.381941 0.382552

General information on the benchmark

Namerandom/OnTreshold/7SAT/v60/
unif-k7-r89-v60-c5340-S1093254405-20.SAT.shuffled.cnf
MD5SUMb50ca018e79197079aea11ca328afe4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.068989
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 55340

Solver Data (download as text)

0.30/0.38	c 
0.30/0.38	c UBCSAT version 1.1.0rr
0.30/0.38	c 
0.30/0.38	c http://www.satlib.org/ubcsat
0.30/0.38	c 
0.30/0.38	c ubcsat -h for help
0.30/0.38	c 
0.30/0.38	c  -runs 1 
0.30/0.38	c  -cutoff 4294967295 
0.30/0.38	c  -timeout 0.000000 
0.30/0.38	c  -gtimeout 0.000000 
0.30/0.38	c  -noimprove 0 
0.30/0.38	c  -target 0 
0.30/0.38	c  -wtarget 0.000000 
0.30/0.38	c  -seed 485422941 
0.30/0.38	c  -solve 0 
0.30/0.38	c  -find,-numsol 0 
0.30/0.38	c  -findunique 0 
0.30/0.38	c  -srestart 0 
0.30/0.38	c  -prestart 0.000000 
0.30/0.38	c  -drestart 0 
0.30/0.38	c 
0.30/0.38	c  -alpha 1.300000 
0.30/0.38	c  -rho 0.800000 
0.30/0.38	c  -ps 0.050000 
0.30/0.38	c  -wp 0.010000 
0.30/0.38	c  -sapsthresh -0.100000 
0.30/0.38	c 
0.30/0.38	s SATISFIABLE
0.30/0.38	v  -1 -2 3 -4 5 6 -7 8 -9 -10
0.30/0.38	v  11 12 -13 -14 15 -16 -17 -18 19 -20
0.30/0.38	v  21 22 23 24 25 26 -27 28 -29 -30
0.30/0.38	v  31 -32 -33 -34 -35 36 37 38 39 -40
0.30/0.38	v  -41 42 43 44 45 -46 47 48 49 -50
0.30/0.38	v  -51 52 53 54 55 -56 57 -58 59 -60
0.30/0.38	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node43/watcher-296264-1171820958 -o ROOT/results/node43/solver-296264-1171820958 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/296264-1171820958/saps /tmp/evaluation/296264-1171820958/instance-296264-1171820958.cnf 485422941 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 1.09 3/64 14635
/proc/meminfo: memFree=547288/2055920 swapFree=4183376/4192956
[pid=14635] ppid=14633 vsize=5160 CPUtime=0
/proc/14635/stat : 14635 (saps) R 14633 14635 13755 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 202051858 5283840 137 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134896151 0 0 4096 0 0 0 0 17 1 0 0
/proc/14635/statm: 1290 137 73 159 0 1129 0

[startup+0.107382 s]
/proc/loadavg: 0.92 0.98 1.09 3/64 14635
/proc/meminfo: memFree=547288/2055920 swapFree=4183376/4192956
[pid=14635] ppid=14633 vsize=5156 CPUtime=0.1
/proc/14635/stat : 14635 (saps) R 14633 14635 13755 0 -1 4194304 256 0 0 0 10 0 0 0 18 0 1 0 202051858 5279744 240 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134715038 0 0 4096 0 0 0 0 17 1 0 0
/proc/14635/statm: 1289 240 78 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

Solver just ended. Dumping a history of the last processes samples

[startup+0.209398 s]
/proc/loadavg: 0.92 0.98 1.09 3/64 14635
/proc/meminfo: memFree=547288/2055920 swapFree=4183376/4192956
[pid=14635] ppid=14633 vsize=5156 CPUtime=0.2
/proc/14635/stat : 14635 (saps) R 14633 14635 13755 0 -1 4194304 256 0 0 0 20 0 0 0 19 0 1 0 202051858 5279744 240 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714962 0 0 4096 0 0 0 0 17 1 0 0
/proc/14635/statm: 1289 240 78 159 0 1128 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 5156

[startup+0.311415 s]
/proc/loadavg: 0.92 0.98 1.09 3/64 14635
/proc/meminfo: memFree=547288/2055920 swapFree=4183376/4192956
[pid=14635] ppid=14633 vsize=5156 CPUtime=0.3
/proc/14635/stat : 14635 (saps) R 14633 14635 13755 0 -1 4194304 256 0 0 0 30 0 0 0 19 0 1 0 202051858 5279744 240 18446744073709551615 134512640 135167564 4294956624 18446744073709551615 134714379 0 0 4096 0 0 0 0 17 1 0 0
/proc/14635/statm: 1289 240 78 159 0 1128 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.382552
CPU time (s): 0.381941
CPU user time (s): 0.379942
CPU system time (s): 0.001999
CPU usage (%): 99.8403
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.379942
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 274
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= 8
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Sun Feb 18 17:49:18 UTC 2007

IDJOB= 296264
IDBENCH= 19933
IDSOLVER= 103
FILE ID= node43/296264-1171820958

PBS_JOBID= 3839636

Free space on /tmp= 66562 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v60/unif-k7-r89-v60-c5340-S1093254405-20.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/296264-1171820958/saps /tmp/evaluation/296264-1171820958/instance-296264-1171820958.cnf  485422941   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-296264-1171820958 -o ROOT/results/node43/solver-296264-1171820958 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/296264-1171820958/saps /tmp/evaluation/296264-1171820958/instance-296264-1171820958.cnf  485422941   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  b50ca018e79197079aea11ca328afe4d

RANDOM SEED= 485422941

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.281
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		: 3000.281
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:        547696 kB
Buffers:         52740 kB
Cached:        1329496 kB
SwapCached:       4080 kB
Active:         866600 kB
Inactive:       525788 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        547696 kB
SwapTotal:     4192956 kB
SwapFree:      4183376 kB
Dirty:            2288 kB
Writeback:           0 kB
Mapped:          15424 kB
Slab:           101880 kB
Committed_AS:   523508 kB
PageTables:       1392 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= 66562 MiB

End job on node43 on Sun Feb 18 17:49:19 UTC 2007