Trace number 330588

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) 5.56 3.22511

General information on the benchmark

Nameindustrial/IBM_FV_2004_30/
IBM_FV_2004_rule_batch_30_SAT_dat.k25.cnf
MD5SUMcb7e94a0572e125e87a474412f4998c5
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 variables50004
Number of clauses206879
Sum of the clauses size527991
Maximum clause length12
Minimum clause length1
Number of clauses of size 12072
Number of clauses of size 2145945
Number of clauses of size 338456
Number of clauses of size 47314
Number of clauses of size 54149
Number of clauses of size over 58943

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330588-1173168931/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.39/0.43	c Input file : '/tmp/evaluation/330588-1173168931/instance-330588-1173168931.cnf'
0.39/0.43	c [#vars: 50004, #clauses: 206879 , (1-12)-CNF]
0.59/0.62	c unit clauses propagate before processing (#clause: 177328)
0.59/0.62	c estimated distribution: 8 tasks
0.69/0.73	c [PID]: 23595 23596 23597 23598 23599 23600 23601
4.09/2.54	c [PID]: 23602
4.09/2.54	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/node47/watcher-330588-1173168931 -o ROOT/results/node47/solver-330588-1173168931 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330588-1173168931/kcnfs-smp /tmp/evaluation/330588-1173168931/instance-330588-1173168931.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: 1.04 1.03 1.00 3/64 23593
/proc/meminfo: memFree=1837320/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=180784 CPUtime=0
/proc/23593/stat : 23593 (kcnfs-smp) R 23591 23593 22513 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 42868263 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/23593/statm: 45196 51 43 160 0 45034 0

[startup+0.0418169 s]
/proc/loadavg: 1.04 1.03 1.00 3/64 23593
/proc/meminfo: memFree=1837320/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=180784 CPUtime=0.04
/proc/23593/stat : 23593 (kcnfs-smp) R 23591 23593 22513 0 -1 4194304 66 0 0 0 4 0 0 0 18 0 1 0 42868263 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/23593/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 180784

[startup+0.101823 s]
/proc/loadavg: 1.04 1.03 1.00 3/64 23593
/proc/meminfo: memFree=1837320/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=181708 CPUtime=0.09
/proc/23593/stat : 23593 (kcnfs-smp) R 23591 23593 22513 0 -1 4194304 320 0 0 0 9 0 0 0 18 0 1 0 42868263 186068992 305 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23593/statm: 45427 306 48 160 0 45265 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 181708

[startup+0.301844 s]
/proc/loadavg: 1.04 1.03 1.00 3/64 23593
/proc/meminfo: memFree=1837320/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=192664 CPUtime=0.29
/proc/23593/stat : 23593 (kcnfs-smp) R 23591 23593 22513 0 -1 4194304 3065 0 0 0 27 2 0 0 19 0 1 0 42868263 197287936 3050 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23593/statm: 48166 3050 48 160 0 48004 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 192664

[startup+0.701886 s]
/proc/loadavg: 1.04 1.03 1.00 3/64 23593
/proc/meminfo: memFree=1837320/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=208896 CPUtime=0.69
/proc/23593/stat : 23593 (kcnfs-smp) R 23591 23593 22513 0 -1 4194304 17031 0 0 0 61 8 0 0 22 0 1 0 42868263 213909504 16917 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 1 0 0
/proc/23593/statm: 52224 16917 66 160 0 52062 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 208896

[startup+1.50199 s]
/proc/loadavg: 1.04 1.03 1.00 5/68 23597
/proc/meminfo: memFree=1737640/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=208896 CPUtime=0.99
/proc/23593/stat : 23593 (kcnfs-smp) R 23591 23593 22513 0 -1 4194304 28763 0 0 0 82 17 0 0 25 0 1 0 42868263 213909504 16925 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720241 0 0 4096 0 0 0 0 17 0 0 0
/proc/23593/statm: 52224 16925 66 160 0 52062 0
[pid=23595] ppid=23593 vsize=208896 CPUtime=0.53
/proc/23595/stat : 23595 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2697 0 0 0 52 1 0 0 25 0 1 0 42868336 213909504 16986 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720612 0 0 4096 2 0 0 0 17 1 0 0
/proc/23595/statm: 52224 16986 66 160 0 52062 0
[pid=23596] ppid=23593 vsize=208896 CPUtime=0.32
/proc/23596/stat : 23596 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2626 0 0 0 32 0 0 0 25 0 1 0 42868339 213909504 16960 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720561 0 0 4096 0 0 0 0 17 1 0 0
/proc/23596/statm: 52224 16960 66 160 0 52062 0
[pid=23597] ppid=23593 vsize=208896 CPUtime=0.21
/proc/23597/stat : 23597 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2613 0 0 0 21 0 0 0 25 0 1 0 42868347 213909504 16947 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572276 0 0 4096 2 0 0 0 17 0 0 0
/proc/23597/statm: 52224 16947 66 160 0 52062 0
Current children cumulated CPU time (s) 2.05
Current children cumulated vsize (KiB) 835584

[startup+3.10216 s]
/proc/loadavg: 1.04 1.03 1.00 8/71 23600
/proc/meminfo: memFree=1704016/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=208896 CPUtime=1.12
/proc/23593/stat : 23593 (kcnfs-smp) S 23591 23593 22513 0 -1 4194304 34806 0 0 0 91 21 0 0 25 0 1 0 42868263 213909504 16925 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/23593/statm: 52224 16925 66 160 0 52062 0
[pid=23595] ppid=23593 vsize=208896 CPUtime=1.03
/proc/23595/stat : 23595 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2755 0 0 0 102 1 0 0 25 0 1 0 42868336 213909504 17001 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/23595/statm: 52224 17001 67 160 0 52062 0
[pid=23596] ppid=23593 vsize=208896 CPUtime=0.79
/proc/23596/stat : 23596 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2889 0 0 0 78 1 0 0 25 0 1 0 42868339 213909504 17101 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720296 0 0 4096 0 0 0 0 17 1 0 0
/proc/23596/statm: 52224 17101 67 160 0 52062 0
[pid=23597] ppid=23593 vsize=208896 CPUtime=0.7
/proc/23597/stat : 23597 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2684 0 0 0 70 0 0 0 25 0 1 0 42868347 213909504 16979 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/23597/statm: 52224 16979 67 160 0 52062 0
[pid=23598] ppid=23593 vsize=208896 CPUtime=0.57
/proc/23598/stat : 23598 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2671 0 0 0 55 2 0 0 25 0 1 0 42868372 213909504 16966 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 1 0 0
/proc/23598/statm: 52224 16966 67 160 0 52062 0
[pid=23599] ppid=23593 vsize=208896 CPUtime=0.46
/proc/23599/stat : 23599 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2640 0 0 0 45 1 0 0 25 0 1 0 42868408 213909504 16968 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572621 0 0 4096 2 0 0 0 17 0 0 0
/proc/23599/statm: 52224 16968 66 160 0 52062 0
[pid=23600] ppid=23593 vsize=208896 CPUtime=0.32
/proc/23600/stat : 23600 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2627 0 0 0 31 1 0 0 25 0 1 0 42868434 213909504 16956 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 0 0 0 0 17 0 0 0
/proc/23600/statm: 52224 16956 66 160 0 52062 0
Current children cumulated CPU time (s) 4.99
Current children cumulated vsize (KiB) 1462272



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20217 s]
/proc/loadavg: 1.60 1.15 1.04 9/73 23602
/proc/meminfo: memFree=1681144/2055920 swapFree=4192812/4192956
[pid=23593] ppid=23591 vsize=208896 CPUtime=1.12
/proc/23593/stat : 23593 (kcnfs-smp) S 23591 23593 22513 0 -1 4194304 34806 0 0 0 91 21 0 0 25 0 1 0 42868263 213909504 16925 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/23593/statm: 52224 16925 66 160 0 52062 0
[pid=23595] ppid=23593 vsize=208896 CPUtime=1.03
/proc/23595/stat : 23595 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2755 0 0 0 102 1 0 0 25 0 1 0 42868336 213909504 17001 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/23595/statm: 52224 17001 67 160 0 52062 0
[pid=23596] ppid=23593 vsize=208896 CPUtime=0.84
/proc/23596/stat : 23596 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2894 0 0 0 83 1 0 0 25 0 1 0 42868339 213909504 17103 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720418 0 0 4096 0 0 0 0 17 1 0 0
/proc/23596/statm: 52224 17103 67 160 0 52062 0
[pid=23597] ppid=23593 vsize=208896 CPUtime=0.7
/proc/23597/stat : 23597 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2684 0 0 0 70 0 0 0 25 0 1 0 42868347 213909504 16979 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/23597/statm: 52224 16979 67 160 0 52062 0
[pid=23598] ppid=23593 vsize=208896 CPUtime=0.63
/proc/23598/stat : 23598 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2674 0 0 0 61 2 0 0 25 0 1 0 42868372 213909504 16969 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 1 0 0
/proc/23598/statm: 52224 16969 67 160 0 52062 0
[pid=23599] ppid=23593 vsize=208896 CPUtime=0.5
/proc/23599/stat : 23599 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2648 0 0 0 49 1 0 0 25 0 1 0 42868408 213909504 16976 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720364 0 0 4096 2 0 0 0 17 0 0 0
/proc/23599/statm: 52224 16976 66 160 0 52062 0
[pid=23600] ppid=23593 vsize=208896 CPUtime=0.38
/proc/23600/stat : 23600 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2634 0 0 0 37 1 0 0 25 0 1 0 42868434 213909504 16963 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572276 0 0 4096 0 0 0 0 17 0 0 0
/proc/23600/statm: 52224 16963 66 160 0 52062 0
[pid=23601] ppid=23593 vsize=208896 CPUtime=0.22
/proc/23601/stat : 23601 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2617 0 0 0 21 1 0 0 25 0 1 0 42868475 213909504 16946 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134696874 0 0 4096 2 0 0 0 17 1 0 0
/proc/23601/statm: 52224 16946 66 160 0 52062 0
[pid=23602] ppid=23593 vsize=208896 CPUtime=0.14
/proc/23602/stat : 23602 (kcnfs-smp) R 23593 23593 22513 0 -1 4194368 2606 0 0 0 12 2 0 0 25 0 1 0 42868512 213909504 16939 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/23602/statm: 52224 16939 66 160 0 52062 0
Current children cumulated CPU time (s) 5.56
Current children cumulated vsize (KiB) 1880064

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 23593 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=918860 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=216967
CPU time returned by wait4() is 1.13583
while last known CPU time is 5.56

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

Real time (s): 3.22511
CPU time (s): 5.56
CPU user time (s): 5.26
CPU system time (s): 0.3
CPU usage (%): 172.397
Max. virtual memory (cumulated for all children) (KiB): 1880064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.91886
system time used= 0.216967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 34806
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= 9
involuntary context switches= 29

runsolver used 0.008998 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node47 on Tue Mar  6 08:15:31 UTC 2007

IDJOB= 330588
IDBENCH= 20567
IDSOLVER= 112
FILE ID= node47/330588-1173168931

PBS_JOBID= 4015228

Free space on /tmp= 66550 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2004_30/IBM_FV_2004_rule_batch_30_SAT_dat.k25.cnf
COMMAND LINE= /tmp/evaluation/330588-1173168931/kcnfs-smp /tmp/evaluation/330588-1173168931/instance-330588-1173168931.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node47/watcher-330588-1173168931 -o ROOT/results/node47/solver-330588-1173168931 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330588-1173168931/kcnfs-smp /tmp/evaluation/330588-1173168931/instance-330588-1173168931.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  cb7e94a0572e125e87a474412f4998c5

RANDOM SEED= 615520773

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node47.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		: 3000.225
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		: 3000.225
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:       1837728 kB
Buffers:         12036 kB
Cached:         136748 kB
SwapCached:          0 kB
Active:          40688 kB
Inactive:       123544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1837728 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7800 kB
Writeback:           0 kB
Mapped:          25620 kB
Slab:            39960 kB
Committed_AS:   140028 kB
PageTables:       1452 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= 66550 MiB

End job on node47 on Tue Mar  6 08:15:36 UTC 2007