Trace number 330378

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? (MO) 5.31 3.22608

General information on the benchmark

Nameindustrial/IBM_FV_2004_30/
IBM_FV_2004_rule_batch_30_SAT_dat.k35.cnf
MD5SUMe2ce53da4f00ba19b35d5b71c6e657f7
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 variables70924
Number of clauses294099
Sum of the clauses size752291
Maximum clause length12
Minimum clause length1
Number of clauses of size 12072
Number of clauses of size 2207955
Number of clauses of size 354916
Number of clauses of size 410434
Number of clauses of size 55929
Number of clauses of size over 512793

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330378-1173163747/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.49/0.58	c Input file : '/tmp/evaluation/330378-1173163747/instance-330378-1173163747.cnf'
0.49/0.58	c [#vars: 70924, #clauses: 294099 , (1-12)-CNF]
0.79/0.83	c unit clauses propagate before processing (#clause: 264548)
0.79/0.83	c estimated distribution: 8 tasks
0.89/0.99	c [PID]: 450 451 452 453 454 455 456
4.66/3.17	c [PID]: 457
4.66/3.17	c real distribution: 8 tasks

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/node75/watcher-330378-1173163747 -o ROOT/results/node75/solver-330378-1173163747 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330378-1173163747/kcnfs-smp /tmp/evaluation/330378-1173163747/instance-330378-1173163747.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 0.96 3/64 448
/proc/meminfo: memFree=1261168/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=180784 CPUtime=0
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 66 0 0 0 0 0 0 0 20 0 1 0 336340598 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/448/statm: 45196 51 43 160 0 45034 0

[startup+0.011981 s]
/proc/loadavg: 0.91 0.95 0.96 3/64 448
/proc/meminfo: memFree=1261168/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=180784 CPUtime=0.01
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 66 0 0 0 1 0 0 0 20 0 1 0 336340598 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134941661 0 0 4096 0 0 0 0 17 1 0 0
/proc/448/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 180784

[startup+0.101991 s]
/proc/loadavg: 0.91 0.95 0.96 3/64 448
/proc/meminfo: memFree=1261168/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=180784 CPUtime=0.1
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 66 0 0 0 10 0 0 0 20 0 1 0 336340598 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/448/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 180784

[startup+0.302014 s]
/proc/loadavg: 0.91 0.95 0.96 3/64 448
/proc/meminfo: memFree=1261168/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=191872 CPUtime=0.29
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 2854 0 0 0 28 1 0 0 22 0 1 0 336340598 196476928 2839 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/448/statm: 47968 2839 48 160 0 47806 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 191872

[startup+0.701061 s]
/proc/loadavg: 0.91 0.95 0.96 3/64 448
/proc/meminfo: memFree=1261168/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=221468 CPUtime=0.69
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 17415 0 0 0 62 7 0 0 25 0 1 0 336340598 226783232 17399 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134542374 0 0 4096 0 0 0 0 17 1 0 0
/proc/448/statm: 55367 17399 51 160 0 55205 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 221468

[startup+1.50117 s]
/proc/loadavg: 0.91 0.95 0.96 3/66 450
/proc/meminfo: memFree=1159136/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=220908 CPUtime=1.14
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 32714 0 0 0 97 17 0 0 25 0 1 0 336340598 226209792 23992 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720328 0 0 4096 0 0 0 0 17 0 0 0
/proc/448/statm: 55227 23992 66 160 0 55065 0
[pid=450] ppid=448 vsize=220908 CPUtime=0.5
/proc/450/stat : 450 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3681 0 0 0 49 1 0 0 25 0 1 0 336340696 226209792 24026 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572834 0 0 4096 2 0 0 0 17 1 0 0
/proc/450/statm: 55227 24026 66 160 0 55065 0
Current children cumulated CPU time (s) 1.64
Current children cumulated vsize (KiB) 441816

[startup+3.10236 s]
/proc/loadavg: 0.91 0.95 0.96 6/69 453
/proc/meminfo: memFree=1104712/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=220908 CPUtime=1.52
/proc/448/stat : 448 (kcnfs-smp) R 446 448 32517 0 -1 4194304 47427 0 0 0 122 30 0 0 25 0 1 0 336340598 226209792 23992 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720398 0 0 4096 0 0 0 0 17 0 0 0
/proc/448/statm: 55227 23992 66 160 0 55065 0
[pid=450] ppid=448 vsize=220908 CPUtime=1.2
/proc/450/stat : 450 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3815 0 0 0 119 1 0 0 25 0 1 0 336340696 226209792 24090 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 1 0 0
/proc/450/statm: 55227 24090 66 160 0 55065 0
[pid=451] ppid=448 vsize=220908 CPUtime=0.72
/proc/451/stat : 451 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3696 0 0 0 70 2 0 0 25 0 1 0 336340702 226209792 24043 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134577061 0 0 4096 0 0 0 0 17 0 0 0
/proc/451/statm: 55227 24043 66 160 0 55065 0
[pid=452] ppid=448 vsize=220908 CPUtime=0.7
/proc/452/stat : 452 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3696 0 0 0 68 2 0 0 25 0 1 0 336340725 226209792 24043 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572623 0 0 4096 2 0 0 0 17 1 0 0
/proc/452/statm: 55227 24043 66 160 0 55065 0
[pid=453] ppid=448 vsize=220908 CPUtime=0.52
/proc/453/stat : 453 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3678 0 0 0 51 1 0 0 25 0 1 0 336340751 226209792 24029 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/453/statm: 55227 24029 66 160 0 55065 0
Current children cumulated CPU time (s) 4.66
Current children cumulated vsize (KiB) 1104540



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20237 s]
/proc/loadavg: 0.91 0.95 0.96 9/73 457
/proc/meminfo: memFree=1056360/2055920 swapFree=4183188/4192956
[pid=448] ppid=446 vsize=220908 CPUtime=1.56
/proc/448/stat : 448 (kcnfs-smp) S 446 448 32517 0 -1 4194304 49161 0 0 0 124 32 0 0 25 0 1 0 336340598 226209792 23992 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/448/statm: 55227 23992 66 160 0 55065 0
[pid=450] ppid=448 vsize=220908 CPUtime=1.2
/proc/450/stat : 450 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3815 0 0 0 119 1 0 0 25 0 1 0 336340696 226209792 24090 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 1 0 0
/proc/450/statm: 55227 24090 66 160 0 55065 0
[pid=451] ppid=448 vsize=220908 CPUtime=0.74
/proc/451/stat : 451 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3699 0 0 0 72 2 0 0 25 0 1 0 336340702 226209792 24046 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/451/statm: 55227 24046 66 160 0 55065 0
[pid=452] ppid=448 vsize=220908 CPUtime=0.7
/proc/452/stat : 452 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3696 0 0 0 68 2 0 0 25 0 1 0 336340725 226209792 24043 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572623 0 0 4096 2 0 0 0 17 1 0 0
/proc/452/statm: 55227 24043 66 160 0 55065 0
[pid=453] ppid=448 vsize=220908 CPUtime=0.52
/proc/453/stat : 453 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3678 0 0 0 51 1 0 0 25 0 1 0 336340751 226209792 24029 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/453/statm: 55227 24029 66 160 0 55065 0
[pid=454] ppid=448 vsize=220908 CPUtime=0.32
/proc/454/stat : 454 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3667 0 0 0 31 1 0 0 25 0 1 0 336340811 226209792 24009 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720539 0 0 4096 2 0 0 0 17 0 0 0
/proc/454/statm: 55227 24009 66 160 0 55065 0
[pid=455] ppid=448 vsize=220908 CPUtime=0.23
/proc/455/stat : 455 (kcnfs-smp) R 448 448 32517 0 -1 4194368 3661 0 0 0 21 2 0 0 25 0 1 0 336340839 226209792 24005 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572276 0 0 4096 0 0 0 0 17 1 0 0
/proc/455/statm: 55227 24005 66 160 0 55065 0
[pid=456] ppid=448 vsize=220908 CPUtime=0.02
/proc/456/stat : 456 (kcnfs-smp) R 448 448 32517 0 -1 4194368 411 0 0 0 2 0 0 0 25 0 1 0 336340884 226209792 23992 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 2 0 0 0 17 1 0 0
/proc/456/statm: 55227 23992 66 160 0 55065 0
[pid=457] ppid=448 vsize=220908 CPUtime=0.02
/proc/457/stat : 457 (kcnfs-smp) R 448 448 32517 0 -1 4194368 410 0 0 0 2 0 0 0 25 0 1 0 336340912 226209792 23993 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 0 0 0
/proc/457/statm: 55227 23993 66 160 0 55065 0
Current children cumulated CPU time (s) 5.31
Current children cumulated vsize (KiB) 1988172

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 448 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=247810 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=325950
CPU time returned by wait4() is 1.57376
while last known CPU time is 5.31

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 3.22608
CPU time (s): 5.31
CPU user time (s): 4.9
CPU system time (s): 0.41
CPU usage (%): 164.596
Max. virtual memory (cumulated for all children) (KiB): 1988172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.24781
system time used= 0.32595
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 49161
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= 40

runsolver used 0.008998 second user time and 0.015997 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Tue Mar  6 06:49:08 UTC 2007

IDJOB= 330378
IDBENCH= 20562
IDSOLVER= 112
FILE ID= node75/330378-1173163747

PBS_JOBID= 4015230

Free space on /tmp= 66487 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2004_30/IBM_FV_2004_rule_batch_30_SAT_dat.k35.cnf
COMMAND LINE= /tmp/evaluation/330378-1173163747/kcnfs-smp /tmp/evaluation/330378-1173163747/instance-330378-1173163747.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-330378-1173163747 -o ROOT/results/node75/solver-330378-1173163747 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330378-1173163747/kcnfs-smp /tmp/evaluation/330378-1173163747/instance-330378-1173163747.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  e2ce53da4f00ba19b35d5b71c6e657f7

RANDOM SEED= 974407132

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1261640 kB
Buffers:         38928 kB
Cached:         672476 kB
SwapCached:       3752 kB
Active:          91696 kB
Inactive:       629232 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1261640 kB
SwapTotal:     4192956 kB
SwapFree:      4183188 kB
Dirty:            9828 kB
Writeback:           0 kB
Mapped:          15612 kB
Slab:            59320 kB
Committed_AS:   863592 kB
PageTables:       1432 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= 66487 MiB

End job on node75 on Tue Mar  6 06:49:13 UTC 2007