Trace number 334416

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) 4.93 3.2255

General information on the benchmark

Namecrafted/Hard/contest04/others/
Composite-096BitPrimes-0.sat05-507.reshuffled-07.cnf
MD5SUM8b466b7ef3217bdc844a579ae744d427
Bench CategoryCRAFTED (crafted 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 variables18623
Number of clauses182878
Sum of the clauses size821466
Maximum clause length5
Minimum clause length1
Number of clauses of size 1290
Number of clauses of size 218428
Number of clauses of size 318240
Number of clauses of size 40
Number of clauses of size 5145920
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/334416-1173570800/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.39/0.49	c Input file : '/tmp/evaluation/334416-1173570800/instance-334416-1173570800.cnf'
0.39/0.49	c [#vars: 18623, #clauses: 182878 , (1-5)-CNF]
1.29/1.30	c unit clauses propagate before processing (#clause: 180486)
1.29/1.30	c estimated distribution: 8 tasks
1.29/1.38	c [PID]: 20139 20140 20141 20142 20143 20144 20145
2.76/2.18	c [PID]: 20146
2.76/2.18	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/node11/watcher-334416-1173570800 -o ROOT/results/node11/solver-334416-1173570800 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/334416-1173570800/kcnfs-smp /tmp/evaluation/334416-1173570800/instance-334416-1173570800.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: 1.00 1.00 1.00 3/77 20137
/proc/meminfo: memFree=1374024/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=180916 CPUtime=0
/proc/20137/stat : 20137 (kcnfs-smp) R 20135 20137 18991 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 377034682 185257984 109 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/20137/statm: 45229 110 48 160 0 45067 0

[startup+0.0886459 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20137
/proc/meminfo: memFree=1374024/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=185272 CPUtime=0.08
/proc/20137/stat : 20137 (kcnfs-smp) R 20135 20137 18991 0 -1 4194304 1223 0 0 0 8 0 0 0 18 0 1 0 377034682 189718528 1208 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/20137/statm: 46318 1208 48 160 0 46156 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 185272

[startup+0.101647 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20137
/proc/meminfo: memFree=1374024/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=186064 CPUtime=0.09
/proc/20137/stat : 20137 (kcnfs-smp) R 20135 20137 18991 0 -1 4194304 1393 0 0 0 9 0 0 0 18 0 1 0 377034682 190529536 1378 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/20137/statm: 46516 1378 48 160 0 46354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186064

[startup+0.30167 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20137
/proc/meminfo: memFree=1374024/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=196492 CPUtime=0.29
/proc/20137/stat : 20137 (kcnfs-smp) R 20135 20137 18991 0 -1 4194304 4011 0 0 0 28 1 0 0 19 0 1 0 377034682 201207808 3996 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/20137/statm: 49123 3997 48 160 0 48961 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196492

[startup+0.701718 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20137
/proc/meminfo: memFree=1374024/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=219628 CPUtime=0.69
/proc/20137/stat : 20137 (kcnfs-smp) R 20135 20137 18991 0 -1 4194304 11795 0 0 0 64 5 0 0 23 0 1 0 377034682 224899072 11779 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134541776 0 0 4096 0 0 0 0 17 1 0 0
/proc/20137/statm: 54907 11781 51 160 0 54745 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 219628

[startup+1.50183 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20138
/proc/meminfo: memFree=1317440/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=219628 CPUtime=1.43
/proc/20137/stat : 20137 (kcnfs-smp) R 20135 20137 18991 0 -1 4194304 19309 0 0 0 133 10 0 0 25 0 1 0 377034682 224899072 15881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/20137/statm: 54907 15881 66 160 0 54745 0
Current children cumulated CPU time (s) 1.43
Current children cumulated vsize (KiB) 219628

[startup+3.10301 s]
/proc/loadavg: 1.00 1.00 1.00 8/84 20144
/proc/meminfo: memFree=1276944/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=219628 CPUtime=1.55
/proc/20137/stat : 20137 (kcnfs-smp) S 20135 20137 18991 0 -1 4194304 24168 0 0 0 142 13 0 0 25 0 1 0 377034682 224899072 15881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/20137/statm: 54907 15881 66 160 0 54745 0
[pid=20139] ppid=20137 vsize=219628 CPUtime=0.6
/proc/20139/stat : 20139 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1451 0 0 0 60 0 0 0 25 0 1 0 377034820 224899072 16050 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567202 0 0 4096 2 0 0 0 17 1 0 0
/proc/20139/statm: 54907 16050 66 160 0 54745 0
[pid=20140] ppid=20137 vsize=219628 CPUtime=0.64
/proc/20140/stat : 20140 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1458 0 0 0 63 1 0 0 25 0 1 0 377034822 224899072 16019 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/20140/statm: 54907 16019 66 160 0 54745 0
[pid=20141] ppid=20137 vsize=219628 CPUtime=0.51
/proc/20141/stat : 20141 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1443 0 0 0 51 0 0 0 25 0 1 0 377034829 224899072 16020 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567283 0 0 4096 2 0 0 0 17 0 0 0
/proc/20141/statm: 54907 16020 66 160 0 54745 0
[pid=20142] ppid=20137 vsize=219628 CPUtime=0.43
/proc/20142/stat : 20142 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1451 0 0 0 43 0 0 0 25 0 1 0 377034842 224899072 15969 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 1 0 0
/proc/20142/statm: 54907 15969 66 160 0 54745 0
[pid=20143] ppid=20137 vsize=219628 CPUtime=0.34
/proc/20143/stat : 20143 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1365 0 0 0 33 1 0 0 25 0 1 0 377034871 224899072 15979 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720511 0 0 4096 2 0 0 0 17 1 0 0
/proc/20143/statm: 54907 15979 66 160 0 54745 0
[pid=20144] ppid=20137 vsize=219628 CPUtime=0.21
/proc/20144/stat : 20144 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1316 0 0 0 21 0 0 0 25 0 1 0 377034878 224899072 15929 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 1 0 0
/proc/20144/statm: 54907 15929 66 160 0 54745 0
Current children cumulated CPU time (s) 4.28
Current children cumulated vsize (KiB) 1537396



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20303 s]
/proc/loadavg: 1.00 1.00 1.00 9/86 20146
/proc/meminfo: memFree=1262776/2055920 swapFree=4169972/4192956
[pid=20137] ppid=20135 vsize=219628 CPUtime=1.55
/proc/20137/stat : 20137 (kcnfs-smp) S 20135 20137 18991 0 -1 4194304 24168 0 0 0 142 13 0 0 25 0 1 0 377034682 224899072 15881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/20137/statm: 54907 15881 66 160 0 54745 0
[pid=20139] ppid=20137 vsize=219628 CPUtime=0.62
/proc/20139/stat : 20139 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1473 0 0 0 62 0 0 0 25 0 1 0 377034820 224899072 16052 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134696672 0 0 4096 2 0 0 0 17 1 0 0
/proc/20139/statm: 54907 16052 66 160 0 54745 0
[pid=20140] ppid=20137 vsize=219628 CPUtime=0.64
/proc/20140/stat : 20140 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1458 0 0 0 63 1 0 0 25 0 1 0 377034822 224899072 16019 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/20140/statm: 54907 16019 66 160 0 54745 0
[pid=20141] ppid=20137 vsize=219628 CPUtime=0.6
/proc/20141/stat : 20141 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1480 0 0 0 60 0 0 0 25 0 1 0 377034829 224899072 16041 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 0 0 0
/proc/20141/statm: 54907 16041 66 160 0 54745 0
[pid=20142] ppid=20137 vsize=219628 CPUtime=0.43
/proc/20142/stat : 20142 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1451 0 0 0 43 0 0 0 25 0 1 0 377034842 224899072 15969 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 1 0 0
/proc/20142/statm: 54907 15969 66 160 0 54745 0
[pid=20143] ppid=20137 vsize=219628 CPUtime=0.34
/proc/20143/stat : 20143 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1365 0 0 0 33 1 0 0 25 0 1 0 377034871 224899072 15979 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720511 0 0 4096 2 0 0 0 17 1 0 0
/proc/20143/statm: 54907 15979 66 160 0 54745 0
[pid=20144] ppid=20137 vsize=219628 CPUtime=0.3
/proc/20144/stat : 20144 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1337 0 0 0 30 0 0 0 25 0 1 0 377034878 224899072 15944 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134697053 0 0 4096 0 0 0 0 17 1 0 0
/proc/20144/statm: 54907 15944 66 160 0 54745 0
[pid=20145] ppid=20137 vsize=219628 CPUtime=0.24
/proc/20145/stat : 20145 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1395 0 0 0 24 0 0 0 25 0 1 0 377034893 224899072 15925 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720511 0 0 4096 2 0 0 0 17 0 0 0
/proc/20145/statm: 54907 15925 66 160 0 54745 0
[pid=20146] ppid=20137 vsize=219628 CPUtime=0.21
/proc/20146/stat : 20146 (kcnfs-smp) R 20137 20137 18991 0 -1 4194368 1391 0 0 0 20 1 0 0 25 0 1 0 377034899 224899072 15914 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/20146/statm: 54907 15914 66 160 0 54745 0
Current children cumulated CPU time (s) 4.93
Current children cumulated vsize (KiB) 1976652

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 20137 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=422783 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=134979
CPU time returned by wait4() is 1.55776
while last known CPU time is 4.93

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

Real time (s): 3.2255
CPU time (s): 4.93
CPU user time (s): 4.77
CPU system time (s): 0.16
CPU usage (%): 152.845
Max. virtual memory (cumulated for all children) (KiB): 1976652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.42278
system time used= 0.134979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24168
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= 56

runsolver used 0.008998 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Sat Mar 10 23:53:21 UTC 2007

IDJOB= 334416
IDBENCH= 24627
IDSOLVER= 112
FILE ID= node11/334416-1173570800

PBS_JOBID= 4101189

Free space on /tmp= 66344 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest04/others/Composite-096BitPrimes-0.sat05-507.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/334416-1173570800/kcnfs-smp /tmp/evaluation/334416-1173570800/instance-334416-1173570800.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-334416-1173570800 -o ROOT/results/node11/solver-334416-1173570800 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/334416-1173570800/kcnfs-smp /tmp/evaluation/334416-1173570800/instance-334416-1173570800.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  8b466b7ef3217bdc844a579ae744d427

RANDOM SEED= 80751284

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.243
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		: 3000.243
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:       1374496 kB
Buffers:         53644 kB
Cached:         536592 kB
SwapCached:       2248 kB
Active:         256832 kB
Inactive:       356320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1374496 kB
SwapTotal:     4192956 kB
SwapFree:      4169972 kB
Dirty:            8340 kB
Writeback:           0 kB
Mapped:          30864 kB
Slab:            53848 kB
Committed_AS:  1194516 kB
PageTables:       1756 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= 66344 MiB

End job on node11 on Sat Mar 10 23:53:27 UTC 2007