Trace number 314388

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 2006? (exit code) 0.273957 0.275957

General information on the benchmark

Nameindustrial/fuhs/medium/
AProVE07-09.cnf
MD5SUM50ed98553825ac1825482c1496260592
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark564.645
Satisfiable
(Un)Satisfiability was proved
Number of variables33582
Number of clauses160817
Sum of the clauses size423605
Maximum clause length4200
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2136464
Number of clauses of size 36536
Number of clauses of size 46374
Number of clauses of size 52328
Number of clauses of size over 59114

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/314388-1172636544/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.19/0.27	c this formula cannot been solved by kcnfs
0.19/0.27

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/node76/watcher-314388-1172636544 -o ROOT/results/node76/solver-314388-1172636544 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/314388-1172636544/kcnfs-2006 /tmp/evaluation/314388-1172636544/instance-314388-1172636544.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: 1.99 1.87 1.48 3/69 19829
/proc/meminfo: memFree=1412880/2055888 swapFree=4087160/4096564
[pid=19829] ppid=19827 vsize=180776 CPUtime=0
/proc/19829/stat : 19829 (kcnfs-2006) R 19827 19829 19471 0 -1 4194304 75 0 0 0 0 0 0 0 19 0 1 0 283612704 185114624 61 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/19829/statm: 45194 61 47 158 0 45034 0

[startup+0.0869989 s]
/proc/loadavg: 1.99 1.87 1.48 3/69 19829
/proc/meminfo: memFree=1412880/2055888 swapFree=4087160/4096564
[pid=19829] ppid=19827 vsize=183944 CPUtime=0.08
/proc/19829/stat : 19829 (kcnfs-2006) R 19827 19829 19471 0 -1 4194304 872 0 0 0 8 0 0 0 19 0 1 0 283612704 188358656 858 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19829/statm: 45986 858 47 158 0 45826 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 183944

[startup+0.101999 s]
/proc/loadavg: 1.99 1.87 1.48 3/69 19829
/proc/meminfo: memFree=1412880/2055888 swapFree=4087160/4096564
[pid=19829] ppid=19827 vsize=184736 CPUtime=0.1
/proc/19829/stat : 19829 (kcnfs-2006) R 19827 19829 19471 0 -1 4194304 1075 0 0 0 10 0 0 0 19 0 1 0 283612704 189169664 1061 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19829/statm: 46184 1061 47 158 0 46024 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 184736

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

[startup+0.202011 s]
/proc/loadavg: 1.99 1.87 1.48 3/69 19829
/proc/meminfo: memFree=1412880/2055888 swapFree=4087160/4096564
[pid=19829] ppid=19827 vsize=190148 CPUtime=0.19
/proc/19829/stat : 19829 (kcnfs-2006) R 19827 19829 19471 0 -1 4194304 2439 0 0 0 19 0 0 0 20 0 1 0 283612704 194711552 2425 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19829/statm: 47537 2426 47 158 0 47377 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 190148

Child status: 1
Real time (s): 0.275957
CPU time (s): 0.273957
CPU user time (s): 0.25996
CPU system time (s): 0.013997
CPU usage (%): 99.2753
Max. virtual memory (cumulated for all children) (KiB): 190148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.25996
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3406
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= 1

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node76 on Wed Feb 28 04:22:24 UTC 2007

IDJOB= 314388
IDBENCH= 20390
IDSOLVER= 113
FILE ID= node76/314388-1172636544

PBS_JOBID= 3981160

Free space on /tmp= 66612 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/fuhs/medium/AProVE07-09.cnf
COMMAND LINE= /tmp/evaluation/314388-1172636544/kcnfs-2006 /tmp/evaluation/314388-1172636544/instance-314388-1172636544.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-314388-1172636544 -o ROOT/results/node76/solver-314388-1172636544 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/314388-1172636544/kcnfs-2006 /tmp/evaluation/314388-1172636544/instance-314388-1172636544.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  50ed98553825ac1825482c1496260592

RANDOM SEED= 89574111

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node76.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.219
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	: 6006.18
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		: 3000.219
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1413352 kB
Buffers:         20976 kB
Cached:         573768 kB
SwapCached:       2704 kB
Active:         116752 kB
Inactive:       487464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1413352 kB
SwapTotal:     4096564 kB
SwapFree:      4087160 kB
Dirty:            5960 kB
Writeback:           0 kB
Mapped:          15388 kB
Slab:            24728 kB
Committed_AS:  1074860 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66612 MiB

End job on node76 on Wed Feb 28 04:22:24 UTC 2007