Trace number 320551

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
KCNFS SMP? (exit code) 8.82966 8.85544

General information on the benchmark

Nameindustrial/narain/
clauses-8.cnf
MD5SUM74bd745b1c68e4deddfa063e58b6b54d
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 variables1461771
Number of clauses5687554
Sum of the clauses size14147618
Maximum clause length601
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 24325673
Number of clauses of size 3961281
Number of clauses of size 411051
Number of clauses of size 5354960
Number of clauses of size over 534588

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/320551-1173047710/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
8.67/8.78	c this formula cannot be solved by kcnfs-smp
8.67/8.78

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/node4/watcher-320551-1173047710 -o ROOT/results/node4/solver-320551-1173047710 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320551-1173047710/kcnfs-smp /tmp/evaluation/320551-1173047710/instance-320551-1173047710.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: 1.17 1.02 1.01 3/77 4185
/proc/meminfo: memFree=1716456/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=180916 CPUtime=0
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 324726096 185257984 112 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 45229 112 48 160 0 45067 0

[startup+0.0482029 s]
/proc/loadavg: 1.17 1.02 1.01 3/77 4185
/proc/meminfo: memFree=1716456/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=183292 CPUtime=0.04
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 705 0 0 0 4 0 0 0 18 0 1 0 324726096 187691008 690 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 45823 690 48 160 0 45661 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 183292

[startup+0.101209 s]
/proc/loadavg: 1.17 1.02 1.01 3/77 4185
/proc/meminfo: memFree=1716456/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=186064 CPUtime=0.09
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 1397 0 0 0 9 0 0 0 18 0 1 0 324726096 190529536 1382 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 46516 1383 48 160 0 46354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186064

[startup+0.301237 s]
/proc/loadavg: 1.17 1.02 1.01 3/77 4185
/proc/meminfo: memFree=1716456/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=197020 CPUtime=0.28
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 4147 0 0 0 27 1 0 0 19 0 1 0 324726096 201748480 4132 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134818778 0 0 4096 0 0 0 0 17 0 0 0
/proc/4185/statm: 49255 4132 48 160 0 49093 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 197020

[startup+0.701274 s]
/proc/loadavg: 1.17 1.02 1.01 3/77 4185
/proc/meminfo: memFree=1716456/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=219460 CPUtime=0.68
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 9768 0 0 0 64 4 0 0 23 0 1 0 324726096 224727040 9753 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134956249 0 0 4096 0 0 0 0 17 0 0 0
/proc/4185/statm: 54865 9753 48 160 0 54703 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 219460

[startup+1.50134 s]
/proc/loadavg: 1.17 1.02 1.01 2/78 4186
/proc/meminfo: memFree=1661536/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=261832 CPUtime=1.48
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 20364 0 0 0 137 11 0 0 25 0 1 0 324726096 268115968 20349 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 65458 20349 48 160 0 65296 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 261832

[startup+3.1015 s]
/proc/loadavg: 1.17 1.02 1.01 2/78 4186
/proc/meminfo: memFree=1606112/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=346180 CPUtime=3.08
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 41430 0 0 0 285 23 0 0 25 0 1 0 324726096 354488320 41415 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134787858 0 0 4096 0 0 0 0 17 0 0 0
/proc/4185/statm: 86545 41415 48 160 0 86383 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 346180

[startup+6.3028 s]
/proc/loadavg: 1.16 1.02 1.00 2/78 4186
/proc/meminfo: memFree=1435488/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=512764 CPUtime=6.27
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 83088 0 0 0 581 46 0 0 25 0 1 0 324726096 525070336 83073 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134819947 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 128191 83073 48 160 0 128029 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 512764

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

[startup+7.90195 s]
/proc/loadavg: 1.16 1.02 1.00 2/78 4186
/proc/meminfo: memFree=1320800/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=595660 CPUtime=7.87
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 103802 0 0 0 729 58 0 0 25 0 1 0 324726096 609955840 103787 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 148915 103788 48 160 0 148753 0
Current children cumulated CPU time (s) 7.87
Current children cumulated vsize (KiB) 595660

[startup+8.30199 s]
/proc/loadavg: 1.16 1.02 1.00 2/78 4186
/proc/meminfo: memFree=1320800/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=615724 CPUtime=8.27
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 108837 0 0 0 767 60 0 0 25 0 1 0 324726096 630501376 108822 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 153931 108823 48 160 0 153769 0
Current children cumulated CPU time (s) 8.27
Current children cumulated vsize (KiB) 615724

[startup+8.70103 s]
/proc/loadavg: 1.16 1.02 1.00 2/78 4186
/proc/meminfo: memFree=1265632/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=635920 CPUtime=8.67
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194304 113885 0 0 0 804 63 0 0 25 0 1 0 324726096 651182080 113870 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 158980 113870 48 160 0 158818 0
Current children cumulated CPU time (s) 8.67
Current children cumulated vsize (KiB) 635920

[startup+8.80504 s]
/proc/loadavg: 1.16 1.02 1.00 2/78 4186
/proc/meminfo: memFree=1265632/2055920 swapFree=4153476/4192956
[pid=4185] ppid=4183 vsize=0 CPUtime=8.77
/proc/4185/stat : 4185 (kcnfs-smp) R 4183 4185 3512 0 -1 4194308 114896 0 0 0 812 65 0 0 25 0 1 0 324726096 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/4185/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 8.77
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 8.85544
CPU time (s): 8.82966
CPU user time (s): 8.12476
CPU system time (s): 0.704892
CPU usage (%): 99.7088
Max. virtual memory (cumulated for all children) (KiB): 635920

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.12476
system time used= 0.704892
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 114896
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= 8
involuntary context switches= 202

runsolver used 0.017997 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sun Mar  4 22:35:12 UTC 2007

IDJOB= 320551
IDBENCH= 20506
IDSOLVER= 112
FILE ID= node4/320551-1173047710

PBS_JOBID= 4012265

Free space on /tmp= 66428 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-8.cnf
COMMAND LINE= /tmp/evaluation/320551-1173047710/kcnfs-smp /tmp/evaluation/320551-1173047710/instance-320551-1173047710.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-320551-1173047710 -o ROOT/results/node4/solver-320551-1173047710 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320551-1173047710/kcnfs-smp /tmp/evaluation/320551-1173047710/instance-320551-1173047710.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  74bd745b1c68e4deddfa063e58b6b54d

RANDOM SEED= 803666942

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:       1717376 kB
Buffers:           716 kB
Cached:         249328 kB
SwapCached:       1216 kB
Active:         146000 kB
Inactive:       125616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1717376 kB
SwapTotal:     4192956 kB
SwapFree:      4153476 kB
Dirty:          117500 kB
Writeback:           0 kB
Mapped:          30508 kB
Slab:            52556 kB
Committed_AS:  1222540 kB
PageTables:       1768 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= 66428 MiB

End job on node4 on Sun Mar  4 22:35:21 UTC 2007