Trace number 318095

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) 1.02784 1.02939

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/partial-5-11-u.cnf
MD5SUM8e22d84b1ae625d44fbf300a32374a2d
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 variables164158
Number of clauses730719
Sum of the clauses size1660140
Maximum clause length10
Minimum clause length1
Number of clauses of size 112474
Number of clauses of size 2600009
Number of clauses of size 387256
Number of clauses of size 43440
Number of clauses of size 513760
Number of clauses of size over 513780

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318095-1176898505/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
1.00/1.01	c this formula cannot be solved by kcnfs-smp
1.00/1.01

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/node39/watcher-318095-1176898505 -o ROOT/results/node39/solver-318095-1176898505 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318095-1176898505/kcnfs-smp /tmp/evaluation/318095-1176898505/instance-318095-1176898505.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 0.97 0.98 3/77 24793
/proc/meminfo: memFree=1342800/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=180916 CPUtime=0
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 137762544 185257984 111 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 45229 112 48 160 0 45067 0

[startup+0.030477 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 24793
/proc/meminfo: memFree=1342800/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=182500 CPUtime=0.02
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 500 0 0 0 2 0 0 0 18 0 1 0 137762544 186880000 485 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 45625 486 48 160 0 45463 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 182500

[startup+0.101489 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 24793
/proc/meminfo: memFree=1342800/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=186460 CPUtime=0.09
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 1505 0 0 0 8 1 0 0 18 0 1 0 137762544 190935040 1490 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 46615 1490 48 160 0 46453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186460

[startup+0.301522 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 24793
/proc/meminfo: memFree=1342800/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=197416 CPUtime=0.29
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 4240 0 0 0 27 2 0 0 19 0 1 0 137762544 202153984 4225 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 49354 4225 48 160 0 49192 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197416

[startup+0.701589 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 24793
/proc/meminfo: memFree=1342800/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=219328 CPUtime=0.69
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 9708 0 0 0 64 5 0 0 23 0 1 0 137762544 224591872 9693 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 54832 9693 48 160 0 54670 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 219328

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

[startup+0.901624 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 24793
/proc/meminfo: memFree=1342800/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=230284 CPUtime=0.89
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 12459 0 0 0 83 6 0 0 25 0 1 0 137762544 235810816 12444 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 57571 12445 48 160 0 57409 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 230284

[startup+1.00164 s]
/proc/loadavg: 0.92 0.97 0.98 2/78 24794
/proc/meminfo: memFree=1287816/2055920 swapFree=4138784/4192956
[pid=24793] ppid=24791 vsize=235696 CPUtime=1
/proc/24793/stat : 24793 (kcnfs-smp) R 24791 24793 23629 0 -1 4194304 13808 0 0 0 93 7 0 0 25 0 1 0 137762544 241352704 13793 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/24793/statm: 58924 13794 48 160 0 58762 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 235696

Child status: 1
Real time (s): 1.02939
CPU time (s): 1.02784
CPU user time (s): 0.945856
CPU system time (s): 0.081987
CPU usage (%): 99.8493
Max. virtual memory (cumulated for all children) (KiB): 235696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.945856
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14005
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= 23

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Wed Apr 18 12:15:05 UTC 2007

IDJOB= 318095
IDBENCH= 20386
IDSOLVER= 112
FILE ID= node39/318095-1176898505

PBS_JOBID= 4595147

Free space on /tmp= 66474 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/partial-5-11-u.cnf
COMMAND LINE= /tmp/evaluation/318095-1176898505/kcnfs-smp /tmp/evaluation/318095-1176898505/instance-318095-1176898505.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-318095-1176898505 -o ROOT/results/node39/solver-318095-1176898505 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318095-1176898505/kcnfs-smp /tmp/evaluation/318095-1176898505/instance-318095-1176898505.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  8e22d84b1ae625d44fbf300a32374a2d

RANDOM SEED= 437368189

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.256
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		: 3000.256
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:       1343144 kB
Buffers:         38924 kB
Cached:         595952 kB
SwapCached:      23636 kB
Active:         283964 kB
Inactive:       384624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1343144 kB
SwapTotal:     4192956 kB
SwapFree:      4138784 kB
Dirty:           15876 kB
Writeback:           0 kB
Mapped:          30752 kB
Slab:            29404 kB
Committed_AS:  1738360 kB
PageTables:       2012 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= 66474 MiB

End job on node39 on Wed Apr 18 12:15:06 UTC 2007