Trace number 331256

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 2007-02-08? (MO) 8.49871 8.69044

General information on the benchmark

Nameindustrial/vliw_sat_4.0/
9vliw_m_9stages_iq3_C1_bug6.cnf
MD5SUMabc624ca713aad9563ab3886d918a526
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark47.9177
Satisfiable
(Un)Satisfiability was proved
Number of variables521192
Number of clauses13378781
Sum of the clauses size39205391
Maximum clause length6689
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 28714698
Number of clauses of size 34209419
Number of clauses of size 425257
Number of clauses of size 515681
Number of clauses of size over 5413725

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/node18/watcher-331256-1173182851 -o ROOT/results/node18/solver-331256-1173182851 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331256-1173182851/mmisat /tmp/evaluation/331256-1173182851/instance-331256-1173182851.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: 1.06 1.06 1.01 3/77 23763
/proc/meminfo: memFree=1573616/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=2580 CPUtime=0
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 685 0 0 0 0 0 0 0 18 0 1 0 338241440 2641920 476 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134523161 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 645 476 80 214 0 427 0

[startup+0.0217221 s]
/proc/loadavg: 1.06 1.06 1.01 3/77 23763
/proc/meminfo: memFree=1573616/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=7188 CPUtime=0.01
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 2989 0 0 0 1 0 0 0 18 0 1 0 338241440 7360512 1628 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 1749 1580 80 214 0 1531 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 7188

[startup+0.102727 s]
/proc/loadavg: 1.06 1.06 1.01 3/77 23763
/proc/meminfo: memFree=1573616/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=28500 CPUtime=0.09
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 13772 0 0 0 5 4 0 0 18 0 1 0 338241440 29184000 6939 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 7125 6949 81 214 0 6907 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 28500

[startup+0.301747 s]
/proc/loadavg: 1.06 1.06 1.01 3/77 23763
/proc/meminfo: memFree=1573616/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=82068 CPUtime=0.29
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 40434 0 0 0 16 13 0 0 19 0 1 0 338241440 84037632 20353 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 20517 20353 80 214 0 20299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 82068

[startup+0.701785 s]
/proc/loadavg: 1.06 1.06 1.01 3/77 23763
/proc/meminfo: memFree=1573616/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=187668 CPUtime=0.69
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 93306 0 0 0 36 33 0 0 23 0 1 0 338241440 192172032 46729 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 46917 46737 80 214 0 46699 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 187668

[startup+1.50286 s]
/proc/loadavg: 1.06 1.06 1.01 2/79 23765
/proc/meminfo: memFree=1309216/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=394644 CPUtime=1.49
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 196743 0 0 0 80 69 0 0 25 0 1 0 338241440 404115456 98518 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 98661 98518 80 214 0 98443 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 394644

[startup+3.10202 s]
/proc/loadavg: 1.06 1.06 1.01 2/79 23765
/proc/meminfo: memFree=1024992/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=798360 CPUtime=3.08
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 398559 0 0 0 172 136 0 0 25 0 1 0 338241440 817520640 199438 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 199590 199441 80 214 0 199372 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 798360

[startup+6.30132 s]
/proc/loadavg: 1.06 1.06 1.01 2/78 23765
/proc/meminfo: memFree=238824/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=1537440 CPUtime=6.28
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 768018 0 0 0 363 265 0 0 25 0 1 0 338241440 1574338560 384193 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 384360 384193 80 214 0 384142 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1537440



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+8.40155 s]
/proc/loadavg: 1.05 1.06 1.01 3/78 23765
/proc/meminfo: memFree=15464/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=1850592 CPUtime=8.2
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4194304 924756 0 0 0 480 340 0 0 25 0 1 0 338241440 1895006208 462499 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 462696 462507 80 214 0 462478 0
Current children cumulated CPU time (s) 8.2
Current children cumulated vsize (KiB) 1850592

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+8.60155 s]
/proc/loadavg: 1.05 1.06 1.01 3/78 23765
/proc/meminfo: memFree=15464/2055920 swapFree=4149912/4192956
[pid=23763] ppid=23761 vsize=0 CPUtime=8.4
/proc/23763/stat : 23763 (mmisat) R 23761 23763 22585 0 -1 4195332 924818 0 0 0 480 360 0 0 25 0 1 0 338241440 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/23763/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 8.4
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 8.69044
CPU time (s): 8.49871
CPU user time (s): 4.80927
CPU system time (s): 3.68944
CPU usage (%): 97.7937
Max. virtual memory (cumulated for all children) (KiB): 1850784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.80927
system time used= 3.68944
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 924818
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= 11
involuntary context switches= 193

runsolver used 0.015997 second user time and 0.029995 second system time

The end



Launcher Data (download as text)




Begin job on node18 on Tue Mar  6 12:07:49 UTC 2007

IDJOB= 331256
IDBENCH= 20583
IDSOLVER= 108
FILE ID= node18/331256-1173182851

PBS_JOBID= 4015032

Free space on /tmp= 66207 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_sat_4.0/9vliw_m_9stages_iq3_C1_bug6.cnf
COMMAND LINE= /tmp/evaluation/331256-1173182851/mmisat /tmp/evaluation/331256-1173182851/instance-331256-1173182851.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-331256-1173182851 -o ROOT/results/node18/solver-331256-1173182851 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331256-1173182851/mmisat /tmp/evaluation/331256-1173182851/instance-331256-1173182851.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  abc624ca713aad9563ab3886d918a526

RANDOM SEED= 246069400

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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		: 3000.236
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		: 3000.236
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:       1573896 kB
Buffers:          1704 kB
Cached:         362580 kB
SwapCached:       1148 kB
Active:         415296 kB
Inactive:         4548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1573896 kB
SwapTotal:     4192956 kB
SwapFree:      4149912 kB
Dirty:          229736 kB
Writeback:           0 kB
Mapped:          63500 kB
Slab:            47696 kB
Committed_AS:  1238412 kB
PageTables:       1764 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= 66207 MiB

End job on node18 on Tue Mar  6 12:08:00 UTC 2007