Trace number 334626

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) 1.39079 1.3952

General information on the benchmark

Namecrafted/Hard/contest05/phnf/
phnf-size10-exclusive-luckySeven.used-as.sat04-990.sat05-4196.reshuffled-07.cnf
MD5SUMbf3618cdbef11db03f2026bf209783fc
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1151.72
Satisfiable
(Un)Satisfiability was proved
Number of variables25493
Number of clauses1139180
Sum of the clauses size2298131
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21136319
Number of clauses of size 31
Number of clauses of size 41
Number of clauses of size 57
Number of clauses of size over 52852

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/334626-1173584214/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
1.28/1.38	c this formula cannot be solved by kcnfs-smp
1.28/1.38

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/node5/watcher-334626-1173584214 -o ROOT/results/node5/solver-334626-1173584214 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/334626-1173584214/kcnfs-smp /tmp/evaluation/334626-1173584214/instance-334626-1173584214.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: 1.08 1.03 1.05 3/77 26918
/proc/meminfo: memFree=1766880/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=180916 CPUtime=0
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 378376460 185257984 108 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26918/statm: 45229 108 48 160 0 45067 0

[startup+0.0188289 s]
/proc/loadavg: 1.08 1.03 1.05 3/77 26918
/proc/meminfo: memFree=1766880/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=181576 CPUtime=0.01
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 289 0 0 0 1 0 0 0 18 0 1 0 378376460 185933824 274 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 0 0 0
/proc/26918/statm: 45394 274 48 160 0 45232 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 181576

[startup+0.101831 s]
/proc/loadavg: 1.08 1.03 1.05 3/77 26918
/proc/meminfo: memFree=1766880/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=186460 CPUtime=0.08
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 1500 0 0 0 8 0 0 0 18 0 1 0 378376460 190935040 1485 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 0 0 0
/proc/26918/statm: 46615 1486 48 160 0 46453 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 186460

[startup+0.301855 s]
/proc/loadavg: 1.08 1.03 1.05 3/77 26918
/proc/meminfo: memFree=1766880/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=198076 CPUtime=0.29
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 4422 0 0 0 27 2 0 0 19 0 1 0 378376460 202829824 4407 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 0 0 0
/proc/26918/statm: 49519 4407 48 160 0 49357 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 198076

[startup+0.7019 s]
/proc/loadavg: 1.08 1.03 1.05 3/77 26918
/proc/meminfo: memFree=1766880/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=221572 CPUtime=0.69
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 10271 0 0 0 65 4 0 0 23 0 1 0 378376460 226889728 10256 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 0 0 0
/proc/26918/statm: 55393 10256 48 160 0 55231 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 221572

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

[startup+1.10595 s]
/proc/loadavg: 1.08 1.03 1.05 2/78 26919
/proc/meminfo: memFree=1708504/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=245068 CPUtime=1.1
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 16173 0 0 0 104 6 0 0 25 0 1 0 378376460 250949632 16158 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 0 0 0
/proc/26918/statm: 61267 16159 48 160 0 61105 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 245068

[startup+1.30197 s]
/proc/loadavg: 1.08 1.03 1.05 2/78 26919
/proc/meminfo: memFree=1708504/2055920 swapFree=4170416/4192956
[pid=26918] ppid=26916 vsize=256552 CPUtime=1.28
/proc/26918/stat : 26918 (kcnfs-smp) R 26916 26918 22957 0 -1 4194304 19029 0 0 0 121 7 0 0 25 0 1 0 378376460 262709248 19014 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 0 0 0
/proc/26918/statm: 64138 19014 48 160 0 63976 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 256552

Child status: 1
Real time (s): 1.3952
CPU time (s): 1.39079
CPU user time (s): 1.2888
CPU system time (s): 0.101984
CPU usage (%): 99.6839
Max. virtual memory (cumulated for all children) (KiB): 256552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2888
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20196
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= 13

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Sun Mar 11 03:36:56 UTC 2007

IDJOB= 334626
IDBENCH= 24632
IDSOLVER= 112
FILE ID= node5/334626-1173584214

PBS_JOBID= 4101213

Free space on /tmp= 66389 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/phnf/phnf-size10-exclusive-luckySeven.used-as.sat04-990.sat05-4196.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/334626-1173584214/kcnfs-smp /tmp/evaluation/334626-1173584214/instance-334626-1173584214.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-334626-1173584214 -o ROOT/results/node5/solver-334626-1173584214 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/334626-1173584214/kcnfs-smp /tmp/evaluation/334626-1173584214/instance-334626-1173584214.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  bf3618cdbef11db03f2026bf209783fc

RANDOM SEED= 121994360

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.224
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		: 3000.224
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:       1767288 kB
Buffers:         24484 kB
Cached:         183604 kB
SwapCached:       2236 kB
Active:         158888 kB
Inactive:        73320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1767288 kB
SwapTotal:     4192956 kB
SwapFree:      4170416 kB
Dirty:           19076 kB
Writeback:           0 kB
Mapped:          31984 kB
Slab:            42024 kB
Committed_AS:  1266020 kB
PageTables:       1692 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= 66389 MiB

End job on node5 on Sun Mar 11 03:36:58 UTC 2007