Trace number 335882

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 3.65544 3.6614

General information on the benchmark

Namecrafted/Hard/contest05/others/
linvrinv8.sat05-567.reshuffled-07.cnf
MD5SUMaf4e94e2262dd17f2c350e06d0de5672
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables1920
Number of clauses6337
Sum of the clauses size17024
Maximum clause length64
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22048
Number of clauses of size 34288
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

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/node26/watcher-335882-1173636121 -o ROOT/results/node26/solver-335882-1173636121 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/335882-1173636121/mmisat /tmp/evaluation/335882-1173636121/instance-335882-1173636121.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: 0.92 1.00 1.57 3/83 3028
/proc/meminfo: memFree=1903904/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=1440 CPUtime=0
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 213 0 0 0 0 0 0 0 18 0 1 0 383565783 1474560 196 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523155 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 360 196 81 214 0 142 0

[startup+0.013089 s]
/proc/loadavg: 0.92 1.00 1.57 3/83 3028
/proc/meminfo: memFree=1903904/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=1704 CPUtime=0.01
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 277 0 0 0 1 0 0 0 18 0 1 0 383565783 1744896 260 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 426 260 81 214 0 208 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1704

[startup+0.102104 s]
/proc/loadavg: 0.92 1.00 1.57 3/83 3028
/proc/meminfo: memFree=1903904/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=3024 CPUtime=0.09
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 605 0 0 0 9 0 0 0 18 0 1 0 383565783 3096576 588 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 756 588 81 214 0 538 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3024

[startup+0.301138 s]
/proc/loadavg: 0.92 1.00 1.57 3/83 3028
/proc/meminfo: memFree=1903904/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=4476 CPUtime=0.29
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 975 0 0 0 29 0 0 0 19 0 1 0 383565783 4583424 958 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 1119 958 81 214 0 901 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4476

[startup+0.701208 s]
/proc/loadavg: 0.92 1.00 1.57 3/83 3028
/proc/meminfo: memFree=1903904/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=6324 CPUtime=0.69
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 1439 0 0 0 69 0 0 0 23 0 1 0 383565783 6475776 1422 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 1581 1422 81 214 0 1363 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6324

[startup+1.50135 s]
/proc/loadavg: 0.92 1.00 1.57 2/84 3029
/proc/meminfo: memFree=1897432/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=8700 CPUtime=1.49
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 2044 0 0 0 148 1 0 0 25 0 1 0 383565783 8908800 2027 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 2175 2027 81 214 0 1957 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8700

[startup+3.10162 s]
/proc/loadavg: 0.92 1.00 1.57 2/84 3029
/proc/meminfo: memFree=1894488/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=20360 CPUtime=3.08
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 4943 0 0 0 306 2 0 0 25 0 1 0 383565783 20848640 4926 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134519003 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 5090 4926 85 214 0 4872 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 20360

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

[startup+3.50169 s]
/proc/loadavg: 0.93 1.00 1.56 2/84 3031
/proc/meminfo: memFree=1884312/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=29864 CPUtime=3.49
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4194304 7327 0 0 0 346 3 0 0 25 0 1 0 383565783 30580736 7310 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518866 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 7466 7310 85 214 0 7248 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 29864

[startup+3.60171 s]
/proc/loadavg: 0.93 1.00 1.56 2/84 3031
/proc/meminfo: memFree=1884312/2055920 swapFree=4154884/4192956
[pid=3028] ppid=3026 vsize=20396 CPUtime=3.58
/proc/3028/stat : 3028 (mmisat) R 3026 3028 1923 0 -1 4195840 7336 0 0 0 353 5 0 0 25 0 1 0 383565783 20885504 4964 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/3028/statm: 5099 4964 86 214 0 4881 0
Current children cumulated CPU time (s) 3.58
Current children cumulated vsize (KiB) 20396

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 3.6614
CPU time (s): 3.65544
CPU user time (s): 3.53846
CPU system time (s): 0.116982
CPU usage (%): 99.8373
Max. virtual memory (cumulated for all children) (KiB): 29864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.53846
system time used= 0.116982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7338
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= 83

runsolver used 0.005999 second user time and 0.015997 second system time

The end



Launcher Data (download as text)




Begin job on node26 on Sun Mar 11 18:02:01 UTC 2007

IDJOB= 335882
IDBENCH= 24662
IDSOLVER= 108
FILE ID= node26/335882-1173636121

PBS_JOBID= 4101290

Free space on /tmp= 66561 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/others/linvrinv8.sat05-567.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/335882-1173636121/mmisat /tmp/evaluation/335882-1173636121/instance-335882-1173636121.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-335882-1173636121 -o ROOT/results/node26/solver-335882-1173636121 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/335882-1173636121/mmisat /tmp/evaluation/335882-1173636121/instance-335882-1173636121.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  af4e94e2262dd17f2c350e06d0de5672

RANDOM SEED= 998028252

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.279
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		: 3000.279
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:       1904248 kB
Buffers:         25508 kB
Cached:          71856 kB
SwapCached:      17284 kB
Active:          60584 kB
Inactive:        63172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1904248 kB
SwapTotal:     4192956 kB
SwapFree:      4154884 kB
Dirty:            1264 kB
Writeback:           0 kB
Mapped:          31664 kB
Slab:            13064 kB
Committed_AS:   841008 kB
PageTables:       1936 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= 66542 MiB

End job on node26 on Sun Mar 11 18:02:05 UTC 2007