Trace number 318079

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) 1.16882 1.1714

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/partial-5-13-u.cnf
MD5SUM4bb23e70b97827425fcf5759bf0a79a2
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 variables184196
Number of clauses833889
Sum of the clauses size1904914
Maximum clause length10
Minimum clause length1
Number of clauses of size 113964
Number of clauses of size 2672565
Number of clauses of size 3112780
Number of clauses of size 43840
Number of clauses of size 515360
Number of clauses of size over 515380

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318079-1176887703/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
1.09/1.16	c this formula cannot be solved by kcnfs-smp
1.09/1.16

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/node1/watcher-318079-1176887703 -o ROOT/results/node1/solver-318079-1176887703 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318079-1176887703/kcnfs-smp /tmp/evaluation/318079-1176887703/instance-318079-1176887703.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 0.98 0.99 3/77 26103
/proc/meminfo: memFree=1522504/2055920 swapFree=4145928/4192956
[pid=26103] ppid=26101 vsize=180916 CPUtime=0
/proc/26103/stat : 26103 (kcnfs-smp) R 26101 26103 24912 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 164808144 185257984 111 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26103/statm: 45229 112 48 160 0 45067 0

[startup+0.03296 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 26103
/proc/meminfo: memFree=1522504/2055920 swapFree=4145928/4192956
[pid=26103] ppid=26101 vsize=182632 CPUtime=0.02
/proc/26103/stat : 26103 (kcnfs-smp) R 26101 26103 24912 0 -1 4194304 537 0 0 0 2 0 0 0 18 0 1 0 164808144 187015168 522 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26103/statm: 45658 522 48 160 0 45496 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 182632

[startup+0.101968 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 26103
/proc/meminfo: memFree=1522504/2055920 swapFree=4145928/4192956
[pid=26103] ppid=26101 vsize=186460 CPUtime=0.09
/proc/26103/stat : 26103 (kcnfs-smp) R 26101 26103 24912 0 -1 4194304 1522 0 0 0 8 1 0 0 18 0 1 0 164808144 190935040 1507 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26103/statm: 46648 1508 48 160 0 46486 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186460

[startup+0.301991 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 26103
/proc/meminfo: memFree=1522504/2055920 swapFree=4145928/4192956
[pid=26103] ppid=26101 vsize=197548 CPUtime=0.29
/proc/26103/stat : 26103 (kcnfs-smp) R 26101 26103 24912 0 -1 4194304 4283 0 0 0 27 2 0 0 19 0 1 0 164808144 202289152 4268 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/26103/statm: 49387 4269 48 160 0 49225 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197548

[startup+0.701038 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 26103
/proc/meminfo: memFree=1522504/2055920 swapFree=4145928/4192956
[pid=26103] ppid=26101 vsize=219328 CPUtime=0.68
/proc/26103/stat : 26103 (kcnfs-smp) R 26101 26103 24912 0 -1 4194304 9719 0 0 0 63 5 0 0 23 0 1 0 164808144 224591872 9704 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26103/statm: 54832 9704 48 160 0 54670 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 219328

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

[startup+1.10509 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 26104
/proc/meminfo: memFree=1467008/2055920 swapFree=4145928/4192956
[pid=26103] ppid=26101 vsize=241636 CPUtime=1.09
/proc/26103/stat : 26103 (kcnfs-smp) R 26101 26103 24912 0 -1 4194304 15288 0 0 0 101 8 0 0 25 0 1 0 164808144 247435264 15273 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26103/statm: 60409 15274 48 160 0 60247 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 241636

Child status: 1
Real time (s): 1.1714
CPU time (s): 1.16882
CPU user time (s): 1.06984
CPU system time (s): 0.098984
CPU usage (%): 99.7795
Max. virtual memory (cumulated for all children) (KiB): 241636

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.06984
system time used= 0.098984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16035
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= 25

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Wed Apr 18 09:15:03 UTC 2007

IDJOB= 318079
IDBENCH= 20370
IDSOLVER= 112
FILE ID= node1/318079-1176887703

PBS_JOBID= 4595101

Free space on /tmp= 66384 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/partial-5-13-u.cnf
COMMAND LINE= /tmp/evaluation/318079-1176887703/kcnfs-smp /tmp/evaluation/318079-1176887703/instance-318079-1176887703.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-318079-1176887703 -o ROOT/results/node1/solver-318079-1176887703 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318079-1176887703/kcnfs-smp /tmp/evaluation/318079-1176887703/instance-318079-1176887703.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  4bb23e70b97827425fcf5759bf0a79a2

RANDOM SEED= 137508968

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.234
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		: 3000.234
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:       1522976 kB
Buffers:         23068 kB
Cached:         410740 kB
SwapCached:      14380 kB
Active:         218744 kB
Inactive:       251668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1522976 kB
SwapTotal:     4192956 kB
SwapFree:      4145928 kB
Dirty:           17880 kB
Writeback:           0 kB
Mapped:          43824 kB
Slab:            48024 kB
Committed_AS:  4952148 kB
PageTables:       1880 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= 66384 MiB

End job on node1 on Wed Apr 18 09:15:05 UTC 2007