Trace number 307913

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
Mmisat 2007-02-08Signal 11.1013 11.1167

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1909130260-19-SAT.cnf
MD5SUM34b5792021dd848a8af4ebefee6dfe73
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.154975
Satisfiable
(Un)Satisfiability was proved
Number of variables3497
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: 



Watcher Data (download as text)




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

command line: runsolver --timestamp -w ROOT/results/node14/watcher-307913-1172509347 -o ROOT/results/node14/solver-307913-1172509347 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/307913-1172509347/mmisat /tmp/evaluation/307913-1172509347/instance-307913-1172509347.cnf 

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: 0.98 1.00 1.00 3/83 26169
/proc/meminfo: memFree=1605544/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=1572 CPUtime=0
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 261 0 0 0 0 0 0 0 18 0 1 0 270889114 1609728 244 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 393 245 81 214 0 175 0

[startup+0.107343 s]
/proc/loadavg: 0.98 1.00 1.00 3/83 26169
/proc/meminfo: memFree=1605544/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=4344 CPUtime=0.1
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 964 0 0 0 10 0 0 0 18 0 1 0 270889114 4448256 947 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 1086 947 81 214 0 868 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4344

[startup+0.515381 s]
/proc/loadavg: 0.98 1.00 1.00 3/83 26169
/proc/meminfo: memFree=1605544/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=8700 CPUtime=0.5
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 2034 0 0 0 50 0 0 0 22 0 1 0 270889114 8908800 2017 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 2175 2017 81 214 0 1957 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8700

[startup+1.33647 s]
/proc/loadavg: 0.98 1.00 1.00 2/84 26170
/proc/meminfo: memFree=1594720/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=12528 CPUtime=1.32
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 2998 0 0 0 131 1 0 0 25 0 1 0 270889114 12828672 2981 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 0 0 0
/proc/26169/statm: 3132 2981 81 214 0 2914 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 12528

[startup+2.97362 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1591432/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=17808 CPUtime=2.95
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 4301 0 0 0 293 2 0 0 25 0 1 0 270889114 18235392 4284 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 4452 4284 81 214 0 4234 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 17808

[startup+6.25693 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1584584/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=23616 CPUtime=6.23
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 5753 0 0 0 621 2 0 0 25 0 1 0 270889114 24182784 5736 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 5904 5736 81 214 0 5686 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 23616

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

[startup+6.56296 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1584584/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=23880 CPUtime=6.54
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 5846 0 0 0 652 2 0 0 25 0 1 0 270889114 24453120 5829 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 5970 5829 81 214 0 5752 0
Current children cumulated CPU time (s) 6.54
Current children cumulated vsize (KiB) 23880

[startup+8.20312 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1581976/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=25728 CPUtime=8.18
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 6285 0 0 0 815 3 0 0 25 0 1 0 270889114 26345472 6268 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 6432 6268 81 214 0 6214 0
Current children cumulated CPU time (s) 8.18
Current children cumulated vsize (KiB) 25728

[startup+9.83927 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1581336/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=26028 CPUtime=9.82
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 6375 0 0 0 979 3 0 0 25 0 1 0 270889114 26652672 6358 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134520272 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 6507 6358 84 214 0 6289 0
Current children cumulated CPU time (s) 9.82
Current children cumulated vsize (KiB) 26028

[startup+10.6604 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1560152/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=46896 CPUtime=10.63
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4194304 17300 0 0 0 1056 7 0 0 25 0 1 0 270889114 48021504 11591 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134518914 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 11724 11591 86 214 0 11506 0
Current children cumulated CPU time (s) 10.63
Current children cumulated vsize (KiB) 46896

[startup+11.0684 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 26190
/proc/meminfo: memFree=1560152/2055920 swapFree=4191880/4192956
[pid=26169] ppid=26167 vsize=46896 CPUtime=11.04
/proc/26169/stat : 26169 (mmisat) R 26167 26169 24971 0 -1 4195840 17303 0 0 0 1083 21 0 0 25 0 1 0 270889114 48021504 11591 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/26169/statm: 11724 11591 86 214 0 11506 0
Current children cumulated CPU time (s) 11.04
Current children cumulated vsize (KiB) 46896

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 11.1167
CPU time (s): 11.1013
CPU user time (s): 10.8374
CPU system time (s): 0.263959
CPU usage (%): 99.8617
Max. virtual memory (cumulated for all children) (KiB): 52700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.8374
system time used= 0.263959
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17303
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= 6
involuntary context switches= 85

runsolver used 0.010998 second user time and 0.032994 second system time

The end



Launcher Data (download as text)




Begin job on node14 on Mon Feb 26 17:02:27 UTC 2007

IDJOB= 307913
IDBENCH= 20217
IDSOLVER= 108
FILE ID= node14/307913-1172509347

PBS_JOBID= 3971588

Free space on /tmp= 66559 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1909130260-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/307913-1172509347/mmisat /tmp/evaluation/307913-1172509347/instance-307913-1172509347.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-307913-1172509347 -o ROOT/results/node14/solver-307913-1172509347 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/307913-1172509347/mmisat /tmp/evaluation/307913-1172509347/instance-307913-1172509347.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  34b5792021dd848a8af4ebefee6dfe73

RANDOM SEED= 631617188

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.216
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		: 3000.216
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:       1605952 kB
Buffers:         48820 kB
Cached:         273296 kB
SwapCached:        408 kB
Active:         216936 kB
Inactive:       159920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1605952 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1428 kB
Writeback:           0 kB
Mapped:          71352 kB
Slab:            58312 kB
Committed_AS:   885148 kB
PageTables:       1976 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= 66514 MiB

End job on node14 on Mon Feb 26 17:02:38 UTC 2007