Trace number 320634

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 2006? (exit code) 13.5459 13.5578

General information on the benchmark

Nameindustrial/narain/
clauses-10.cnf
MD5SUM98c58d3136fcf1971f77037eb3533718
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark98.347
Satisfiable
(Un)Satisfiability was proved
Number of variables2270929
Number of clauses8901946
Sum of the clauses size22176046
Maximum clause length865
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 26786479
Number of clauses of size 31496293
Number of clauses of size 414719
Number of clauses of size 5555520
Number of clauses of size over 548934

Solver Data (download as text)

0.04/0.05	
0.04/0.05	c Computed by /tmp/evaluation/320634-1173048556/kcnfs-2006   V. 1.2
0.04/0.05	c reading file ... done
13.39/13.45	c this formula cannot been solved by kcnfs
13.39/13.45

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/node39/watcher-320634-1173048556 -o ROOT/results/node39/solver-320634-1173048556 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320634-1173048556/kcnfs-2006 /tmp/evaluation/320634-1173048556/instance-320634-1173048556.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: 1.14 1.06 0.96 4/64 14997
/proc/meminfo: memFree=924352/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=18568 CPUtime=0
/proc/14997/stat : 14997 (runsolver) R 14995 14997 14164 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 324811640 19013632 293 18446744073709551615 4194304 4294612 548682069008 18446744073709551615 231493659943 0 0 4096 24578 0 0 0 17 1 0 0
/proc/14997/statm: 4642 293 258 24 0 2626 0

[startup+0.051735 s]
/proc/loadavg: 1.14 1.06 0.96 4/64 14997
/proc/meminfo: memFree=924352/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=183152 CPUtime=0.04
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 691 0 0 0 4 0 0 0 18 0 1 0 324811640 187547648 676 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 45788 677 47 158 0 45628 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 183152

[startup+0.101512 s]
/proc/loadavg: 1.14 1.06 0.96 4/64 14997
/proc/meminfo: memFree=924352/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=185924 CPUtime=0.09
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 1371 0 0 0 9 0 0 0 18 0 1 0 324811640 190386176 1356 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 46481 1357 47 158 0 46321 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 185924

[startup+0.301546 s]
/proc/loadavg: 1.14 1.06 0.96 4/64 14997
/proc/meminfo: memFree=924352/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=196880 CPUtime=0.28
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 4128 0 0 0 27 1 0 0 19 0 1 0 324811640 201605120 4113 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 49253 4114 47 158 0 49093 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 196880

[startup+0.701615 s]
/proc/loadavg: 1.14 1.06 0.96 4/64 14997
/proc/meminfo: memFree=924352/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=218792 CPUtime=0.68
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 9575 0 0 0 64 4 0 0 23 0 1 0 324811640 224043008 9560 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 54698 9561 47 158 0 54538 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 218792

[startup+1.50175 s]
/proc/loadavg: 1.14 1.06 0.96 2/65 14998
/proc/meminfo: memFree=865784/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=261824 CPUtime=1.49
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 20343 0 0 0 138 11 0 0 25 0 1 0 324811640 268107776 20328 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 65456 20329 47 158 0 65296 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261824

[startup+3.10203 s]
/proc/loadavg: 1.14 1.06 0.96 2/65 14998
/proc/meminfo: memFree=807160/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=348152 CPUtime=3.09
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 41938 0 0 0 287 22 0 0 25 0 1 0 324811640 356507648 41923 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 87038 41923 47 158 0 86878 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 348152

[startup+6.30158 s]
/proc/loadavg: 1.29 1.09 0.97 2/65 14998
/proc/meminfo: memFree=631224/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=520808 CPUtime=6.29
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 85092 0 0 0 583 46 0 0 25 0 1 0 324811640 533307392 85077 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 130202 85077 47 158 0 130042 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 520808

[startup+12.7017 s]
/proc/loadavg: 1.27 1.09 0.97 2/65 14998
/proc/meminfo: memFree=284920/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=860840 CPUtime=12.68
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 170086 0 0 0 1179 89 0 0 25 0 1 0 324811640 881500160 170071 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 215210 170072 47 158 0 215050 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 860840

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

[startup+13.1017 s]
/proc/loadavg: 1.27 1.09 0.97 2/65 14998
/proc/meminfo: memFree=227320/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=881828 CPUtime=13.08
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194304 175339 0 0 0 1217 91 0 0 25 0 1 0 324811640 902991872 175324 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 220457 175325 47 158 0 220297 0
Current children cumulated CPU time (s) 13.08
Current children cumulated vsize (KiB) 881828

[startup+13.5018 s]
/proc/loadavg: 1.27 1.09 0.97 2/65 14998
/proc/meminfo: memFree=227320/2055920 swapFree=4184064/4192956
[pid=14997] ppid=14995 vsize=0 CPUtime=13.48
/proc/14997/stat : 14997 (kcnfs-2006) R 14995 14997 14164 0 -1 4194308 179940 0 0 0 1250 98 0 0 24 0 1 0 324811640 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/14997/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 13.48
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 13.5578
CPU time (s): 13.5459
CPU user time (s): 12.5071
CPU system time (s): 1.03884
CPU usage (%): 99.9123
Max. virtual memory (cumulated for all children) (KiB): 897272

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.5071
system time used= 1.03884
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 179940
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= 52

runsolver used 0.017997 second user time and 0.038994 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Sun Mar  4 22:49:17 UTC 2007

IDJOB= 320634
IDBENCH= 20508
IDSOLVER= 113
FILE ID= node39/320634-1173048556

PBS_JOBID= 4012480

Free space on /tmp= 66363 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-10.cnf
COMMAND LINE= /tmp/evaluation/320634-1173048556/kcnfs-2006 /tmp/evaluation/320634-1173048556/instance-320634-1173048556.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-320634-1173048556 -o ROOT/results/node39/solver-320634-1173048556 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320634-1173048556/kcnfs-2006 /tmp/evaluation/320634-1173048556/instance-320634-1173048556.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  98c58d3136fcf1971f77037eb3533718

RANDOM SEED= 181027030

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		: 3000.285
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		: 3000.285
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:        926488 kB
Buffers:         39744 kB
Cached:         991064 kB
SwapCached:       2928 kB
Active:         619692 kB
Inactive:       439356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        926488 kB
SwapTotal:     4192956 kB
SwapFree:      4184064 kB
Dirty:          186784 kB
Writeback:           0 kB
Mapped:          34176 kB
Slab:            56356 kB
Committed_AS:   782512 kB
PageTables:       1476 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= 66363 MiB

End job on node39 on Sun Mar  4 22:49:31 UTC 2007