Trace number 310459

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 SMPUNSAT 4.6153 3.20568

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
MD5SUMe4a16dbebaf749785d32ea7331a934fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.09138
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
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/310459-1172559747/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/310459-1172559747/instance-310459-1172559747.cnf'
0.00/0.00	c [#vars: 630, #clauses: 2280 , (2-3)-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 2280)
0.00/0.00	c estimated distribution: 8 tasks
0.00/0.09	c <23521> [PID]: 23523 23524 23525 23526 23527 23528 23529
0.12/0.22	c <23521> [PID]: 23530
0.12/0.22	c real distribution: 8 tasks
0.12/0.22	c <23521> [23523: UNSAT][23524: UNSAT][23526: UNSAT][23525: UNSAT][23530: UNSAT]
2.32/1.29	c <23521> [23528: UNSAT][23529: UNSAT][23527: UNSAT]
4.57/3.20	s UNSATISFIABLE
4.57/3.20	c CPU time            : 4.570 seconds
4.57/3.20	c Elapsed Time        : 3.200 seconds
4.57/3.20	c Size of search tree : 7171 nodes
4.57/3.20	c average speed       : 1569.147 nodes/sec.
4.57/3.20

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node7/watcher-310459-1172559747 -o ROOT/results/node7/solver-310459-1172559747 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310459-1172559747/kcnfs-smp /tmp/evaluation/310459-1172559747/instance-310459-1172559747.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 3/83 23521
/proc/meminfo: memFree=1617312/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=181044 CPUtime=0
/proc/23521/stat : 23521 (kcnfs-smp) R 23519 23521 22800 0 -1 4194304 167 0 0 0 0 0 0 0 18 0 1 0 275929404 185389056 151 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23521/statm: 45261 153 51 160 0 45099 0

[startup+0.107648 s]
/proc/loadavg: 1.00 1.00 1.00 3/83 23521
/proc/meminfo: memFree=1617312/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=182448 CPUtime=0.09
/proc/23521/stat : 23521 (kcnfs-smp) R 23519 23521 22800 0 -1 4194304 337 0 0 0 9 0 0 0 18 0 1 0 275929404 186826752 267 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/23521/statm: 45612 267 75 160 0 45450 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 182448

[startup+0.516689 s]
/proc/loadavg: 1.00 1.00 1.00 3/83 23521
/proc/meminfo: memFree=1617312/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=182448 CPUtime=0.23
/proc/23521/stat : 23521 (kcnfs-smp) S 23519 23521 22800 0 -1 4194304 478 102 0 0 12 0 11 0 22 0 1 0 275929404 186826752 268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/23521/statm: 45612 268 75 160 0 45450 0
Current children cumulated CPU time (s) 0.23
Current children cumulated vsize (KiB) 182448

[startup+1.33778 s]
/proc/loadavg: 1.00 1.00 1.00 8/89 23540
/proc/meminfo: memFree=1615600/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=182448 CPUtime=1.45
/proc/23521/stat : 23521 (kcnfs-smp) S 23519 23521 22800 0 -1 4194304 478 308 0 0 12 0 133 0 16 0 1 0 275929404 186826752 268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/23521/statm: 45612 268 75 160 0 45450 0
[pid=23527] ppid=23521 vsize=182448 CPUtime=0.51
/proc/23527/stat : 23527 (kcnfs-smp) R 23521 23521 22800 0 -1 4194368 38 0 0 0 51 0 0 0 25 0 1 0 275929420 186826752 272 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134683586 0 0 4096 2 0 0 0 17 1 0 0
/proc/23527/statm: 45612 272 76 160 0 45450 0
[pid=23529] ppid=23521 vsize=182448 CPUtime=0.55
/proc/23529/stat : 23529 (kcnfs-smp) R 23521 23521 22800 0 -1 4194368 38 0 0 0 55 0 0 0 25 0 1 0 275929425 186826752 273 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134629406 0 0 4096 2 0 0 0 17 0 0 0
/proc/23529/statm: 45612 273 76 160 0 45450 0
Current children cumulated CPU time (s) 2.51
Current children cumulated vsize (KiB) 547344

[startup+2.97395 s]
/proc/loadavg: 1.00 1.00 1.00 2/79 23550
/proc/meminfo: memFree=1616760/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=182448 CPUtime=2.22
/proc/23521/stat : 23521 (kcnfs-smp) S 23519 23521 22800 0 -1 4194304 478 360 0 0 12 0 210 0 15 0 1 0 275929404 186826752 268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/23521/statm: 45612 268 75 160 0 45450 0
[pid=23527] ppid=23521 vsize=182448 CPUtime=2.14
/proc/23527/stat : 23527 (kcnfs-smp) R 23521 23521 22800 0 -1 4194368 39 0 0 0 214 0 0 0 25 0 1 0 275929420 186826752 273 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134604423 0 0 4096 2 0 0 0 17 1 0 0
/proc/23527/statm: 45612 273 76 160 0 45450 0
Current children cumulated CPU time (s) 4.36
Current children cumulated vsize (KiB) 364896

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

[startup+3.07596 s]
/proc/loadavg: 1.00 1.00 1.00 2/79 23550
/proc/meminfo: memFree=1616760/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=182448 CPUtime=2.22
/proc/23521/stat : 23521 (kcnfs-smp) S 23519 23521 22800 0 -1 4194304 478 360 0 0 12 0 210 0 15 0 1 0 275929404 186826752 268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/23521/statm: 45612 268 75 160 0 45450 0
[pid=23527] ppid=23521 vsize=182448 CPUtime=2.24
/proc/23527/stat : 23527 (kcnfs-smp) R 23521 23521 22800 0 -1 4194368 39 0 0 0 224 0 0 0 25 0 1 0 275929420 186826752 273 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134580054 0 0 4096 2 0 0 0 17 1 0 0
/proc/23527/statm: 45612 273 76 160 0 45450 0
Current children cumulated CPU time (s) 4.46
Current children cumulated vsize (KiB) 364896

[startup+3.17797 s]
/proc/loadavg: 1.00 1.00 1.00 2/79 23550
/proc/meminfo: memFree=1616760/2055920 swapFree=4147496/4192956
[pid=23521] ppid=23519 vsize=182448 CPUtime=2.22
/proc/23521/stat : 23521 (kcnfs-smp) S 23519 23521 22800 0 -1 4194304 478 360 0 0 12 0 210 0 15 0 1 0 275929404 186826752 268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/23521/statm: 45612 268 75 160 0 45450 0
[pid=23527] ppid=23521 vsize=182448 CPUtime=2.35
/proc/23527/stat : 23527 (kcnfs-smp) R 23521 23521 22800 0 -1 4194368 39 0 0 0 235 0 0 0 25 0 1 0 275929420 186826752 273 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567447 0 0 4096 2 0 0 0 17 1 0 0
/proc/23527/statm: 45612 273 76 160 0 45450 0
Current children cumulated CPU time (s) 4.57
Current children cumulated vsize (KiB) 364896

Child status: 20
Real time (s): 3.20568
CPU time (s): 4.6153
CPU user time (s): 4.6093
CPU system time (s): 0.005999
CPU usage (%): 143.973
Max. virtual memory (cumulated for all children) (KiB): 729792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.6093
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 917
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= 54
involuntary context switches= 138

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Tue Feb 27 07:02:27 UTC 2007

IDJOB= 310459
IDBENCH= 20287
IDSOLVER= 112
FILE ID= node7/310459-1172559747

PBS_JOBID= 3971659

Free space on /tmp= 66549 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310459-1172559747/kcnfs-smp /tmp/evaluation/310459-1172559747/instance-310459-1172559747.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-310459-1172559747 -o ROOT/results/node7/solver-310459-1172559747 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310459-1172559747/kcnfs-smp /tmp/evaluation/310459-1172559747/instance-310459-1172559747.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  e4a16dbebaf749785d32ea7331a934fc

RANDOM SEED= 340117785

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.232
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		: 3000.232
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:       1617656 kB
Buffers:         49940 kB
Cached:         292600 kB
SwapCached:       9088 kB
Active:         222472 kB
Inactive:       144552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1617656 kB
SwapTotal:     4192956 kB
SwapFree:      4147496 kB
Dirty:            3232 kB
Writeback:           0 kB
Mapped:          31756 kB
Slab:            56352 kB
Committed_AS:   921020 kB
PageTables:       2008 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= 66549 MiB

End job on node7 on Tue Feb 27 07:02:30 UTC 2007