Trace number 318084

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) 2.27665 2.27939

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)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318084-1176891084/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
2.19/2.25	c this formula cannot be solved by kcnfs-smp
2.19/2.25

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/node40/watcher-318084-1176891084 -o ROOT/results/node40/solver-318084-1176891084 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318084-1176891084/kcnfs-smp /tmp/evaluation/318084-1176891084/instance-318084-1176891084.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: 0.91 0.95 0.98 3/77 3783
/proc/meminfo: memFree=1547656/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=180916 CPUtime=0
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 17987970 185257984 113 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 45229 113 48 160 0 45067 0

[startup+0.0574149 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 3783
/proc/meminfo: memFree=1547656/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=183952 CPUtime=0.05
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 878 0 0 0 5 0 0 0 18 0 1 0 17987970 188366848 863 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 45988 864 48 160 0 45826 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 183952

[startup+0.101424 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 3783
/proc/meminfo: memFree=1547656/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=186460 CPUtime=0.09
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 1514 0 0 0 9 0 0 0 18 0 1 0 17987970 190935040 1499 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 46615 1500 48 160 0 46453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186460

[startup+0.301466 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 3783
/proc/meminfo: memFree=1547656/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=197680 CPUtime=0.29
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 4298 0 0 0 28 1 0 0 19 0 1 0 17987970 202424320 4283 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 49420 4283 48 160 0 49258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197680

[startup+0.701549 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 3783
/proc/meminfo: memFree=1547656/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=219196 CPUtime=0.69
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 9701 0 0 0 65 4 0 0 22 0 1 0 17987970 224456704 9686 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 54799 9686 48 160 0 54637 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 219196

[startup+1.50172 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 3784
/proc/meminfo: memFree=1493120/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=262096 CPUtime=1.49
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 20417 0 0 0 139 10 0 0 25 0 1 0 17987970 268386304 20402 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 65524 20402 48 160 0 65362 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 262096

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

[startup+1.9018 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 3784
/proc/meminfo: memFree=1493120/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=283744 CPUtime=1.89
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 25819 0 0 0 177 12 0 0 25 0 1 0 17987970 290553856 25804 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 70936 25804 48 160 0 70774 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 283744

[startup+2.10184 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 3784
/proc/meminfo: memFree=1433856/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=294304 CPUtime=2.1
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 28461 0 0 0 197 13 0 0 25 0 1 0 17987970 301367296 28446 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 73576 28447 48 160 0 73414 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 294304

[startup+2.20586 s]
/proc/loadavg: 0.91 0.95 0.98 2/78 3784
/proc/meminfo: memFree=1433856/2055920 swapFree=4112932/4192956
[pid=3783] ppid=3781 vsize=299452 CPUtime=2.19
/proc/3783/stat : 3783 (kcnfs-smp) R 3781 3783 2556 0 -1 4194304 29758 0 0 0 206 13 0 0 25 0 1 0 17987970 306638848 29743 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3783/statm: 74863 29743 48 160 0 74701 0
Current children cumulated CPU time (s) 2.19
Current children cumulated vsize (KiB) 299452

Child status: 1
Real time (s): 2.27939
CPU time (s): 2.27665
CPU user time (s): 2.11768
CPU system time (s): 0.158975
CPU usage (%): 99.8801
Max. virtual memory (cumulated for all children) (KiB): 299452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.11768
system time used= 0.158975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30485
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= 4

runsolver used 0.006998 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node40 on Wed Apr 18 10:11:24 UTC 2007

IDJOB= 318084
IDBENCH= 20375
IDSOLVER= 112
FILE ID= node40/318084-1176891084

PBS_JOBID= 4595110

Free space on /tmp= 66516 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/total-10-19-u.cnf
COMMAND LINE= /tmp/evaluation/318084-1176891084/kcnfs-smp /tmp/evaluation/318084-1176891084/instance-318084-1176891084.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-318084-1176891084 -o ROOT/results/node40/solver-318084-1176891084 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318084-1176891084/kcnfs-smp /tmp/evaluation/318084-1176891084/instance-318084-1176891084.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  a2687a8a1b0deeabfd7eddcfa56549a2

RANDOM SEED= 214312741

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node40.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		: 3000.283
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		: 3000.283
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:       1548064 kB
Buffers:         28688 kB
Cached:         396940 kB
SwapCached:       2636 kB
Active:         216368 kB
Inactive:       234896 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1548064 kB
SwapTotal:     4192956 kB
SwapFree:      4112932 kB
Dirty:           32192 kB
Writeback:           0 kB
Mapped:          34600 kB
Slab:            41944 kB
Committed_AS:   255984 kB
PageTables:       1876 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= 66516 MiB

End job on node40 on Wed Apr 18 10:11:27 UTC 2007