Trace number 339578

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 4.70028 4.70325

General information on the benchmark

Namecrafted/Difficult/contest-02-03-04/
contest04-lksat-n1100-m7545-k4-l4-s310659001.sat05-524.reshuffled-07.cnf
MD5SUM3c6e2bf4052a26ce5bdb6cfc9e1f735c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark457.795
Satisfiable
(Un)Satisfiability was proved
Number of variables1075
Number of clauses7545
Sum of the clauses size30180
Maximum clause length4
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 47545
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 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node58/watcher-339578-1173707388 -o ROOT/results/node58/solver-339578-1173707388 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/339578-1173707388/mmisat /tmp/evaluation/339578-1173707388/instance-339578-1173707388.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 1.00 1.00 1.00 3/64 18613
/proc/meminfo: memFree=1927120/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=1308 CPUtime=0
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 390695462 1339392 158 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 327 158 81 214 0 109 0

[startup+0.0148519 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18613
/proc/meminfo: memFree=1927120/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=1440 CPUtime=0.01
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 218 0 0 0 1 0 0 0 18 0 1 0 390695462 1474560 201 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 360 202 81 214 0 142 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1440

[startup+0.10186 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18613
/proc/meminfo: memFree=1927120/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=2100 CPUtime=0.1
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 393 0 0 0 10 0 0 0 18 0 1 0 390695462 2150400 376 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 525 376 81 214 0 307 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2100

[startup+0.301882 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18613
/proc/meminfo: memFree=1927120/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=2892 CPUtime=0.3
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 601 0 0 0 30 0 0 0 19 0 1 0 390695462 2961408 584 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 723 584 81 214 0 505 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2892

[startup+0.701926 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18613
/proc/meminfo: memFree=1927120/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=3948 CPUtime=0.69
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 863 0 0 0 69 0 0 0 22 0 1 0 390695462 4042752 846 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 987 846 81 214 0 769 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3948

[startup+1.50301 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18614
/proc/meminfo: memFree=1923400/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=5400 CPUtime=1.49
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 1212 0 0 0 149 0 0 0 25 0 1 0 390695462 5529600 1195 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 1350 1195 81 214 0 1132 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5400

[startup+3.10119 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18614
/proc/meminfo: memFree=1921736/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=6984 CPUtime=3.09
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 1622 0 0 0 309 0 0 0 25 0 1 0 390695462 7151616 1605 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 1746 1605 81 214 0 1528 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6984

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

[startup+3.90128 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18614
/proc/meminfo: memFree=1920776/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=7644 CPUtime=3.89
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 1772 0 0 0 389 0 0 0 25 0 1 0 390695462 7827456 1755 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 1911 1755 81 214 0 1693 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 7644

[startup+4.30132 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18614
/proc/meminfo: memFree=1919944/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=7908 CPUtime=4.29
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4194304 1841 0 0 0 429 0 0 0 25 0 1 0 390695462 8097792 1824 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 1977 1824 81 214 0 1759 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 7908

[startup+4.70137 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18614
/proc/meminfo: memFree=1919944/2055920 swapFree=4183340/4192956
[pid=18613] ppid=18611 vsize=0 CPUtime=4.69
/proc/18613/stat : 18613 (mmisat) R 18611 18613 17395 0 -1 4195844 5384 0 0 0 462 7 0 0 25 0 1 0 390695462 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/18613/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 4.70325
CPU time (s): 4.70028
CPU user time (s): 4.6263
CPU system time (s): 0.073988
CPU usage (%): 99.937
Max. virtual memory (cumulated for all children) (KiB): 15116

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.6263
system time used= 0.073988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5384
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= 8

runsolver used 0.010998 second user time and 0.010998 second system time

The end



Launcher Data (download as text)




Begin job on node58 on Mon Mar 12 13:49:48 UTC 2007

IDJOB= 339578
IDBENCH= 24750
IDSOLVER= 108
FILE ID= node58/339578-1173707388

PBS_JOBID= 4101749

Free space on /tmp= 66508 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest-02-03-04/contest04-lksat-n1100-m7545-k4-l4-s310659001.sat05-524.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/339578-1173707388/mmisat /tmp/evaluation/339578-1173707388/instance-339578-1173707388.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-339578-1173707388 -o ROOT/results/node58/solver-339578-1173707388 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/339578-1173707388/mmisat /tmp/evaluation/339578-1173707388/instance-339578-1173707388.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  3c6e2bf4052a26ce5bdb6cfc9e1f735c

RANDOM SEED= 564730328

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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		: 3000.234
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		: 3000.234
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:       1927528 kB
Buffers:         10728 kB
Cached:          68904 kB
SwapCached:       3872 kB
Active:          37132 kB
Inactive:        52532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1927528 kB
SwapTotal:     4192956 kB
SwapFree:      4183340 kB
Dirty:            1228 kB
Writeback:           0 kB
Mapped:          15528 kB
Slab:            24800 kB
Committed_AS:   824312 kB
PageTables:       1380 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= 66494 MiB

End job on node58 on Mon Mar 12 13:49:53 UTC 2007