Trace number 313784

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) 41.5737 41.692

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/total-10-19-u.cnf
MD5SUMa2687a8a1b0deeabfd7eddcfa56549a2
Bench CategoryINDUST (industrial 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 variables331202
Number of clauses1571183
Sum of the clauses size3644324
Maximum clause length10
Minimum clause length1
Number of clauses of size 127558
Number of clauses of size 21199929
Number of clauses of size 3281756
Number of clauses of size 46880
Number of clauses of size 527520
Number of clauses of size over 527540

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 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node48/watcher-313784-1176891035 -o ROOT/results/node48/solver-313784-1176891035 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/313784-1176891035/mmisat /tmp/evaluation/313784-1176891035/instance-313784-1176891035.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: 0.78 0.95 0.98 3/64 26295
/proc/meminfo: memFree=1464504/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=2508 CPUtime=0
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 500 0 0 0 0 0 0 0 18 0 1 0 43948899 2568192 483 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 688 489 80 214 0 470 0

[startup+0.0865829 s]
/proc/loadavg: 0.78 0.95 0.98 3/64 26295
/proc/meminfo: memFree=1464504/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=30416 CPUtime=0.07
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 7447 0 0 0 5 2 0 0 18 0 1 0 43948899 31145984 7430 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 7604 7433 80 214 0 7386 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 30416

[startup+0.101582 s]
/proc/loadavg: 0.78 0.95 0.98 3/64 26295
/proc/meminfo: memFree=1464504/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=35272 CPUtime=0.09
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 8645 0 0 0 6 3 0 0 18 0 1 0 43948899 36118528 8628 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 8818 8633 80 214 0 8600 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 35272

[startup+0.3016 s]
/proc/loadavg: 0.78 0.95 0.98 3/64 26295
/proc/meminfo: memFree=1464504/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=93760 CPUtime=0.29
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 23310 0 0 0 20 9 0 0 19 0 1 0 43948899 96010240 23293 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 23440 23299 80 214 0 23222 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 93760

[startup+0.701638 s]
/proc/loadavg: 0.78 0.95 0.98 3/64 26295
/proc/meminfo: memFree=1464504/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=193268 CPUtime=0.69
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 48163 0 0 0 49 20 0 0 22 0 1 0 43948899 197906432 48146 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134523168 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 48317 48146 80 214 0 48099 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 193268

[startup+1.50171 s]
/proc/loadavg: 0.80 0.95 0.98 2/65 26296
/proc/meminfo: memFree=1207344/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=352232 CPUtime=1.49
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 87904 0 0 0 112 37 0 0 25 0 1 0 43948899 360685568 87887 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 88058 87887 80 214 0 87840 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 352232

[startup+3.10186 s]
/proc/loadavg: 0.80 0.95 0.98 2/65 26296
/proc/meminfo: memFree=1012912/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=594440 CPUtime=3.09
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 148486 0 0 0 247 62 0 0 25 0 1 0 43948899 608706560 148469 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 148671 148474 80 214 0 148453 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 594440

[startup+6.30116 s]
/proc/loadavg: 0.81 0.95 0.98 2/65 26296
/proc/meminfo: memFree=600944/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=947076 CPUtime=6.28
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 236615 0 0 0 531 97 0 0 25 0 1 0 43948899 969805824 236598 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 236769 236598 80 214 0 236551 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 947076

[startup+12.7017 s]
/proc/loadavg: 0.83 0.95 0.98 2/65 26296
/proc/meminfo: memFree=193392/2055920 swapFree=4184680/4192956
[pid=26295] ppid=26293 vsize=1293404 CPUtime=12.68
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 323197 0 0 0 1135 133 0 0 25 0 1 0 43948899 1324445696 323180 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517205 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 323351 323180 80 214 0 323133 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1293404

[startup+25.5019 s]
/proc/loadavg: 0.85 0.95 0.98 2/65 26296
/proc/meminfo: memFree=15280/2055920 swapFree=4184636/4192956
[pid=26295] ppid=26293 vsize=1569348 CPUtime=25.48
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 392183 0 0 0 2391 157 0 0 25 0 1 0 43948899 1607012352 392166 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 392337 392166 80 214 0 392119 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1569348



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+41.4014 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 26296
/proc/meminfo: memFree=15600/2055920 swapFree=4184636/4192956
[pid=26295] ppid=26293 vsize=1845052 CPUtime=41.28
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4194304 461109 0 0 0 3945 183 0 0 25 0 1 0 43948899 1889333248 461092 18446744073709551615 134512640 135391789 4294956672 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 461263 461092 80 214 0 461045 0
Current children cumulated CPU time (s) 41.28
Current children cumulated vsize (KiB) 1845052

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

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

[startup+41.6014 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 26296
/proc/meminfo: memFree=15600/2055920 swapFree=4184636/4192956
[pid=26295] ppid=26293 vsize=0 CPUtime=41.47
/proc/26295/stat : 26295 (mmisat) R 26293 26295 26238 0 -1 4195332 461109 0 0 0 3945 202 0 0 25 0 1 0 43948899 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/26295/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 41.47
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 41.692
CPU time (s): 41.5737
CPU user time (s): 39.454
CPU system time (s): 2.11968
CPU usage (%): 99.7162
Max. virtual memory (cumulated for all children) (KiB): 1845052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 39.454
system time used= 2.11968
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 461109
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= 7
involuntary context switches= 75

runsolver used 0.034994 second user time and 0.114982 second system time

The end



Launcher Data (download as text)




Begin job on node48 on Wed Apr 18 10:10:36 UTC 2007

IDJOB= 313784
IDBENCH= 20375
IDSOLVER= 108
FILE ID= node48/313784-1176891035

PBS_JOBID= 4595168

Free space on /tmp= 66505 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/total-10-19-u.cnf
COMMAND LINE= /tmp/evaluation/313784-1176891035/mmisat /tmp/evaluation/313784-1176891035/instance-313784-1176891035.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-313784-1176891035 -o ROOT/results/node48/solver-313784-1176891035 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/313784-1176891035/mmisat /tmp/evaluation/313784-1176891035/instance-313784-1176891035.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  a2687a8a1b0deeabfd7eddcfa56549a2

RANDOM SEED= 272384494

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node48.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		: 3000.238
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		: 3000.238
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:       1464848 kB
Buffers:         24772 kB
Cached:         501240 kB
SwapCached:       2280 kB
Active:         171820 kB
Inactive:       363616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1464848 kB
SwapTotal:     4192956 kB
SwapFree:      4184680 kB
Dirty:           30164 kB
Writeback:           0 kB
Mapped:          16260 kB
Slab:            41616 kB
Committed_AS:   958076 kB
PageTables:       1388 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= 66505 MiB

End job on node48 on Wed Apr 18 10:11:19 UTC 2007