Trace number 315748

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) 2.06669 2.0675

General information on the benchmark

Nameindustrial/palacios/medium/
cube-11-h13-unsat.cnf
MD5SUM3a68d904935650d9da7e64e1ee7bae82
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark465.561
Satisfiable
(Un)Satisfiability was proved
Number of variables454385
Number of clauses1367522
Sum of the clauses size3191290
Maximum clause length19
Minimum clause length1
Number of clauses of size 11331
Number of clauses of size 2911962
Number of clauses of size 3451911
Number of clauses of size 42126
Number of clauses of size 518
Number of clauses of size over 5174

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/315748-1172658327/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
1.99/2.04	c this formula cannot been solved by kcnfs
1.99/2.04

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/node71/watcher-315748-1172658327 -o ROOT/results/node71/solver-315748-1172658327 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/315748-1172658327/kcnfs-2006 /tmp/evaluation/315748-1172658327/instance-315748-1172658327.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: 0.91 0.95 0.97 3/64 6325
/proc/meminfo: memFree=1721576/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=180908 CPUtime=0
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 285790599 185249792 112 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 45227 113 47 158 0 45067 0

[startup+0.00768296 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 6325
/proc/meminfo: memFree=1721576/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=181172 CPUtime=0
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 170 0 0 0 0 0 0 0 18 0 1 0 285790599 185520128 155 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 45293 156 47 158 0 45133 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181172

[startup+0.102702 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 6325
/proc/meminfo: memFree=1721576/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=186188 CPUtime=0.1
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 1435 0 0 0 10 0 0 0 18 0 1 0 285790599 190656512 1420 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 46547 1421 47 158 0 46387 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 186188

[startup+0.302745 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 6325
/proc/meminfo: memFree=1721576/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=196616 CPUtime=0.29
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 4059 0 0 0 28 1 0 0 19 0 1 0 285790599 201334784 4044 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 49154 4044 47 158 0 48994 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196616

[startup+0.701832 s]
/proc/loadavg: 0.91 0.95 0.97 3/64 6325
/proc/meminfo: memFree=1721576/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=217472 CPUtime=0.69
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 9261 0 0 0 66 3 0 0 22 0 1 0 285790599 222691328 9246 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 54368 9246 47 158 0 54208 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 217472

[startup+1.502 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 6326
/proc/meminfo: memFree=1668960/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=259184 CPUtime=1.49
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 19675 0 0 0 142 7 0 0 25 0 1 0 285790599 265404416 19660 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 64796 19661 47 158 0 64636 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 259184

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

[startup+1.90109 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 6326
/proc/meminfo: memFree=1668960/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=279908 CPUtime=1.89
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 24853 0 0 0 179 10 0 0 25 0 1 0 285790599 286625792 24838 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 69977 24838 47 158 0 69817 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 279908

[startup+2.00112 s]
/proc/loadavg: 0.91 0.95 0.97 2/65 6326
/proc/meminfo: memFree=1668960/2055920 swapFree=4183108/4192956
[pid=6325] ppid=6323 vsize=285056 CPUtime=1.99
/proc/6325/stat : 6325 (kcnfs-2006) R 6323 6325 5102 0 -1 4194304 26150 0 0 0 189 10 0 0 25 0 1 0 285790599 291897344 26135 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/6325/statm: 71264 26136 47 158 0 71104 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 285056

Child status: 1
Real time (s): 2.0675
CPU time (s): 2.06669
CPU user time (s): 1.9397
CPU system time (s): 0.12698
CPU usage (%): 99.9607
Max. virtual memory (cumulated for all children) (KiB): 285056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.93971
system time used= 0.12698
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 26780
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= 2

runsolver used 0.008998 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Wed Feb 28 10:25:28 UTC 2007

IDJOB= 315748
IDBENCH= 20424
IDSOLVER= 113
FILE ID= node71/315748-1172658327

PBS_JOBID= 3981184

Free space on /tmp= 66463 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/palacios/medium/cube-11-h13-unsat.cnf
COMMAND LINE= /tmp/evaluation/315748-1172658327/kcnfs-2006 /tmp/evaluation/315748-1172658327/instance-315748-1172658327.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-315748-1172658327 -o ROOT/results/node71/solver-315748-1172658327 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/315748-1172658327/kcnfs-2006 /tmp/evaluation/315748-1172658327/instance-315748-1172658327.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  3a68d904935650d9da7e64e1ee7bae82

RANDOM SEED= 501419236

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.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		: 3000.266
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		: 3000.266
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:       1721984 kB
Buffers:          5188 kB
Cached:         242224 kB
SwapCached:       3576 kB
Active:         115564 kB
Inactive:       177180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1721984 kB
SwapTotal:     4192956 kB
SwapFree:      4183108 kB
Dirty:           27724 kB
Writeback:           0 kB
Mapped:          51360 kB
Slab:            27132 kB
Committed_AS:   856512 kB
PageTables:       1532 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= 66463 MiB

End job on node71 on Wed Feb 28 10:25:30 UTC 2007