Trace number 330504

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) 9.04 5.43304

General information on the benchmark

Nameindustrial/IBM_FV_2004_30/
IBM_FV_2004_rule_batch_30_SAT_dat.k55.cnf
MD5SUM123611192e7b44f446f7ac11e53423f6
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark181.562
Satisfiable
(Un)Satisfiability was proved
Number of variables112764
Number of clauses468539
Sum of the clauses size1200891
Maximum clause length12
Minimum clause length1
Number of clauses of size 12072
Number of clauses of size 2331975
Number of clauses of size 387836
Number of clauses of size 416674
Number of clauses of size 59489
Number of clauses of size over 520493

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330504-1173166852/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.89/0.99	c Input file : '/tmp/evaluation/330504-1173166852/instance-330504-1173166852.cnf'
0.89/0.99	c [#vars: 112764, #clauses: 468539 , (1-12)-CNF]
1.38/1.41	c unit clauses propagate before processing (#clause: 438988)
1.38/1.41	c estimated distribution: 8 tasks
1.59/1.67	c [PID]: 26862 26863 26864 26865 26866 26867 26868
7.93/4.96	c [PID]: 26869
7.93/4.97	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/node68/watcher-330504-1173166852 -o ROOT/results/node68/solver-330504-1173166852 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330504-1173166852/kcnfs-smp /tmp/evaluation/330504-1173166852/instance-330504-1173166852.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: 0.85 0.97 0.99 3/64 26860
/proc/meminfo: memFree=1461080/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=180784 CPUtime=0
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 336642875 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 45196 51 43 160 0 45034 0

[startup+0.07903 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 26860
/proc/meminfo: memFree=1461080/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=180784 CPUtime=0.07
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 66 0 0 0 7 0 0 0 18 0 1 0 336642875 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 180784

[startup+0.101031 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 26860
/proc/meminfo: memFree=1461080/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=180784 CPUtime=0.09
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 66 0 0 0 9 0 0 0 18 0 1 0 336642875 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 180784

[startup+0.301049 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 26860
/proc/meminfo: memFree=1461080/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=186064 CPUtime=0.29
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 1400 0 0 0 29 0 0 0 19 0 1 0 336642875 190529536 1385 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 46516 1386 48 160 0 46354 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 186064

[startup+0.701085 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 26860
/proc/meminfo: memFree=1461080/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=207976 CPUtime=0.69
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 6896 0 0 0 66 3 0 0 22 0 1 0 336642875 212967424 6881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 51994 6881 48 160 0 51832 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 207976

[startup+1.50116 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 26861
/proc/meminfo: memFree=1402704/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=244800 CPUtime=1.49
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 37342 0 0 0 134 15 0 0 25 0 1 0 336642875 250675200 37105 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720328 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 61200 37111 64 160 0 61038 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 244800

[startup+3.10231 s]
/proc/loadavg: 0.85 0.97 0.99 4/67 26863
/proc/meminfo: memFree=1261376/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=244800 CPUtime=2.2
/proc/26860/stat : 26860 (kcnfs-smp) R 26858 26860 26076 0 -1 4194304 60820 0 0 0 187 33 0 0 25 0 1 0 336642875 250675200 38125 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720338 0 0 4096 0 0 0 0 17 1 0 0
/proc/26860/statm: 61200 38125 66 160 0 61038 0
[pid=26862] ppid=26860 vsize=244800 CPUtime=0.9
/proc/26862/stat : 26862 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5779 0 0 0 89 1 0 0 25 0 1 0 336643042 250675200 38163 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720408 0 0 4096 2 0 0 0 17 1 0 0
/proc/26862/statm: 61200 38163 66 160 0 61038 0
[pid=26863] ppid=26860 vsize=244800 CPUtime=0.72
/proc/26863/stat : 26863 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5768 0 0 0 68 4 0 0 25 0 1 0 336643049 250675200 38155 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134572941 0 0 4096 0 0 0 0 17 0 0 0
/proc/26863/statm: 61200 38155 66 160 0 61038 0
Current children cumulated CPU time (s) 3.82
Current children cumulated vsize (KiB) 734400



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+5.40254 s]
/proc/loadavg: 1.18 1.03 1.01 9/73 26869
/proc/meminfo: memFree=1120016/2055920 swapFree=4183224/4192956
[pid=26860] ppid=26858 vsize=244800 CPUtime=2.56
/proc/26860/stat : 26860 (kcnfs-smp) S 26858 26860 26076 0 -1 4194304 77733 0 0 0 211 45 0 0 25 0 1 0 336642875 250675200 38125 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/26860/statm: 61200 38125 66 160 0 61038 0
[pid=26862] ppid=26860 vsize=244800 CPUtime=1.6
/proc/26862/stat : 26862 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5808 0 0 0 159 1 0 0 25 0 1 0 336643042 250675200 38192 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/26862/statm: 61200 38192 66 160 0 61038 0
[pid=26863] ppid=26860 vsize=244800 CPUtime=1.42
/proc/26863/stat : 26863 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5797 0 0 0 138 4 0 0 25 0 1 0 336643049 250675200 38184 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708962 0 0 4096 0 0 0 0 17 0 0 0
/proc/26863/statm: 61200 38184 66 160 0 61038 0
[pid=26864] ppid=26860 vsize=244800 CPUtime=1.23
/proc/26864/stat : 26864 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5792 0 0 0 121 2 0 0 25 0 1 0 336643087 250675200 38179 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/26864/statm: 61200 38179 66 160 0 61038 0
[pid=26865] ppid=26860 vsize=244800 CPUtime=0.91
/proc/26865/stat : 26865 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5777 0 0 0 88 3 0 0 25 0 1 0 336643108 250675200 38167 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720408 0 0 4096 0 0 0 0 17 0 0 0
/proc/26865/statm: 61200 38167 66 160 0 61038 0
[pid=26866] ppid=26860 vsize=244800 CPUtime=0.56
/proc/26866/stat : 26866 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5762 0 0 0 53 3 0 0 25 0 1 0 336643198 250675200 38142 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 1 0 0
/proc/26866/statm: 61200 38142 66 160 0 61038 0
[pid=26867] ppid=26860 vsize=244800 CPUtime=0.42
/proc/26867/stat : 26867 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5756 0 0 0 39 3 0 0 25 0 1 0 336643238 250675200 38138 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134696830 0 0 4096 0 0 0 0 17 1 0 0
/proc/26867/statm: 61200 38138 66 160 0 61038 0
[pid=26868] ppid=26860 vsize=244800 CPUtime=0.22
/proc/26868/stat : 26868 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5750 0 0 0 19 3 0 0 25 0 1 0 336643318 250675200 38131 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567202 0 0 4096 2 0 0 0 17 1 0 0
/proc/26868/statm: 61200 38131 66 160 0 61038 0
[pid=26869] ppid=26860 vsize=244800 CPUtime=0.12
/proc/26869/stat : 26869 (kcnfs-smp) R 26860 26860 26076 0 -1 4194368 5680 0 0 0 7 5 0 0 25 0 1 0 336643369 250675200 38127 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720482 0 0 4096 0 0 0 0 17 1 0 0
/proc/26869/statm: 61200 38127 66 160 0 61038 0
Current children cumulated CPU time (s) 9.04
Current children cumulated vsize (KiB) 2203200

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 26860 and gives childrusage.ru_utime.tv_sec=2 childrusage.ru_utime.tv_usec=110679 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=465929
CPU time returned by wait4() is 2.57661
while last known CPU time is 9.04

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

Real time (s): 5.43304
CPU time (s): 9.04
CPU user time (s): 8.35
CPU system time (s): 0.69
CPU usage (%): 166.389
Max. virtual memory (cumulated for all children) (KiB): 2203200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.11068
system time used= 0.465929
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 77733
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= 35

runsolver used 0.006998 second user time and 0.028995 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Tue Mar  6 07:40:53 UTC 2007

IDJOB= 330504
IDBENCH= 20565
IDSOLVER= 112
FILE ID= node68/330504-1173166852

PBS_JOBID= 4015234

Free space on /tmp= 66418 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2004_30/IBM_FV_2004_rule_batch_30_SAT_dat.k55.cnf
COMMAND LINE= /tmp/evaluation/330504-1173166852/kcnfs-smp /tmp/evaluation/330504-1173166852/instance-330504-1173166852.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-330504-1173166852 -o ROOT/results/node68/solver-330504-1173166852 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330504-1173166852/kcnfs-smp /tmp/evaluation/330504-1173166852/instance-330504-1173166852.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  123611192e7b44f446f7ac11e53423f6

RANDOM SEED= 923343047

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.234
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		: 3000.234
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:       1461488 kB
Buffers:         36996 kB
Cached:         473088 kB
SwapCached:       3724 kB
Active:          87112 kB
Inactive:       432680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1461488 kB
SwapTotal:     4192956 kB
SwapFree:      4183224 kB
Dirty:           14132 kB
Writeback:           0 kB
Mapped:          15752 kB
Slab:            60724 kB
Committed_AS:   851524 kB
PageTables:       1380 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= 66418 MiB

End job on node68 on Tue Mar  6 07:41:00 UTC 2007