Trace number 318068

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? (exit code) 1.9817 1.98257

General information on the benchmark

Nameindustrial/anbulagan/
medium-sat/total-10-17-s.cnf
MD5SUM211504a6ba82cb2fc3f6333430f9c42f
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark16.7874
Satisfiable
(Un)Satisfiability was proved
Number of variables294246
Number of clauses1384270
Sum of the clauses size3202814
Maximum clause length10
Minimum clause length1
Number of clauses of size 124517
Number of clauses of size 21066262
Number of clauses of size 3238391
Number of clauses of size 46120
Number of clauses of size 524480
Number of clauses of size over 524500

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318068-1176877157/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
1.89/1.96	c this formula cannot be solved by kcnfs-smp
1.89/1.96

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node40/watcher-318068-1176877157 -o ROOT/results/node40/solver-318068-1176877157 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318068-1176877157/kcnfs-smp /tmp/evaluation/318068-1176877157/instance-318068-1176877157.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: 0.95 0.98 0.99 3/77 2051
/proc/meminfo: memFree=1828728/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=180916 CPUtime=0
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 16595354 185257984 113 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 45229 113 48 160 0 45067 0

[startup+0.101326 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 2051
/proc/meminfo: memFree=1828728/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=186460 CPUtime=0.1
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 1517 0 0 0 9 1 0 0 18 0 1 0 16595354 190935040 1502 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 46615 1502 48 160 0 46453 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 186460

[startup+0.201346 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 2051
/proc/meminfo: memFree=1828728/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=192136 CPUtime=0.19
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 2927 0 0 0 18 1 0 0 18 0 1 0 16595354 196747264 2912 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 48034 2913 48 160 0 47872 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 192136

[startup+0.301368 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 2051
/proc/meminfo: memFree=1828728/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=197680 CPUtime=0.29
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 4298 0 0 0 27 2 0 0 19 0 1 0 16595354 202424320 4283 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 49420 4283 48 160 0 49258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197680

[startup+0.701451 s]
/proc/loadavg: 0.95 0.98 0.99 3/77 2051
/proc/meminfo: memFree=1828728/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=219328 CPUtime=0.69
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 9725 0 0 0 64 5 0 0 23 0 1 0 16595354 224591872 9710 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 54832 9710 48 160 0 54670 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 219328

[startup+1.50262 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 2052
/proc/meminfo: memFree=1768624/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=263416 CPUtime=1.49
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 20751 0 0 0 138 11 0 0 25 0 1 0 16595354 269737984 20736 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 65854 20736 48 160 0 65692 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 263416

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

[startup+1.60164 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 2052
/proc/meminfo: memFree=1768624/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=268696 CPUtime=1.59
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 22056 0 0 0 147 12 0 0 25 0 1 0 16595354 275144704 22041 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 67174 22041 48 160 0 67012 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 268696

[startup+1.80168 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 2052
/proc/meminfo: memFree=1768624/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=279124 CPUtime=1.79
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 24672 0 0 0 165 14 0 0 25 0 1 0 16595354 285822976 24657 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 69781 24657 48 160 0 69619 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 279124

[startup+1.9017 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 2052
/proc/meminfo: memFree=1768624/2055920 swapFree=4112932/4192956
[pid=2051] ppid=2049 vsize=284404 CPUtime=1.89
/proc/2051/stat : 2051 (kcnfs-smp) R 2049 2051 1063 0 -1 4194304 25977 0 0 0 174 15 0 0 25 0 1 0 16595354 291229696 25962 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/2051/statm: 71101 25963 48 160 0 70939 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 284404

Child status: 1
Real time (s): 1.98257
CPU time (s): 1.9817
CPU user time (s): 1.80772
CPU system time (s): 0.173973
CPU usage (%): 99.9563
Max. virtual memory (cumulated for all children) (KiB): 284404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.80773
system time used= 0.173973
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 26819
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= 12

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node40 on Wed Apr 18 06:19:18 UTC 2007

IDJOB= 318068
IDBENCH= 20359
IDSOLVER= 112
FILE ID= node40/318068-1176877157

PBS_JOBID= 4590304

Free space on /tmp= 66519 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-sat/total-10-17-s.cnf
COMMAND LINE= /tmp/evaluation/318068-1176877157/kcnfs-smp /tmp/evaluation/318068-1176877157/instance-318068-1176877157.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-318068-1176877157 -o ROOT/results/node40/solver-318068-1176877157 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318068-1176877157/kcnfs-smp /tmp/evaluation/318068-1176877157/instance-318068-1176877157.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  211504a6ba82cb2fc3f6333430f9c42f

RANDOM SEED= 996739234

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node40.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		: 3000.283
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		: 3000.283
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:       1829776 kB
Buffers:         19656 kB
Cached:         125520 kB
SwapCached:       1364 kB
Active:          55748 kB
Inactive:       113924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1829776 kB
SwapTotal:     4192956 kB
SwapFree:      4112932 kB
Dirty:           28480 kB
Writeback:           0 kB
Mapped:          34740 kB
Slab:            41944 kB
Committed_AS:   250880 kB
PageTables:       1868 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= 66519 MiB

End job on node40 on Wed Apr 18 06:19:20 UTC 2007