Trace number 296685

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 2004SAT 12.3371 12.3411

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1344401737-18.SAT.shuffled.cnf
MD5SUMed57e6bcaed7669ca4ea0f0e14afc5f1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.079987
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses4005
Sum of the clauses size28035
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54005

Solver Data (download as text)

0.00/0.00	
0.00/0.02	c Computed by /tmp/evaluation/296685-1171826325/kcnfs-2004   V. 03/02/12
0.00/0.02	c Input file : '/tmp/evaluation/296685-1171826325/instance-296685-1171826325.cnf'
12.28/12.33	c [45 variables, 4005 clauses, ratio 89.00, mean occ 311, 7-SAT]
12.28/12.33	s SATISFIABLE
12.28/12.33	v     8    -9    41    -1   -33
12.28/12.33	v    -3     5   -18    39    16
12.28/12.33	v    -4   -37   -14   -35    26
12.28/12.33	v   -29    42   -11    12    20
12.28/12.33	v   -17    22    13    27    30
12.28/12.33	v   -10    44    21    24    31
12.28/12.33	v    45   -38   -40   -32    43
12.28/12.33	v    25    28   -34     2    15
12.28/12.33	v   -19    -6     7    23    36
12.28/12.33	v     0
12.28/12.33	c Computation time    : 12.310 seconds
12.28/12.33	c Execution time      : 12.330 seconds
12.28/12.33	c Size of search tree : 42241 nodes
12.28/12.33

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node2/watcher-296685-1171826325 -o ROOT/results/node2/solver-296685-1171826325 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/296685-1171826325/kcnfs-2004 /tmp/evaluation/296685-1171826325/instance-296685-1171826325.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
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.73 0.46 0.69 3/77 26058
/proc/meminfo: memFree=289784/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=16020 CPUtime=0
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 94 0 0 0 0 0 0 0 18 0 1 0 202587417 16404480 74 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134630404 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4006 75 38 107 0 3895 0

[startup+0.107282 s]
/proc/loadavg: 0.73 0.46 0.69 3/77 26058
/proc/meminfo: memFree=289784/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=0.1
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 861 0 0 0 10 0 0 0 18 0 1 0 202587417 18972672 840 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134579845 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 840 60 107 0 4521 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 18528

[startup+0.519336 s]
/proc/loadavg: 0.73 0.46 0.69 3/77 26058
/proc/meminfo: memFree=289784/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=0.51
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 861 0 0 0 51 0 0 0 22 0 1 0 202587417 18972672 840 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528259 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 840 60 107 0 4521 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 18528

[startup+1.33941 s]
/proc/loadavg: 0.73 0.46 0.69 2/78 26059
/proc/meminfo: memFree=286576/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=1.33
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 861 0 0 0 133 0 0 0 25 0 1 0 202587417 18972672 840 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134529156 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 840 60 107 0 4521 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 18528

[startup+2.97558 s]
/proc/loadavg: 0.73 0.46 0.69 2/78 26059
/proc/meminfo: memFree=286448/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=2.97
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 861 0 0 0 297 0 0 0 25 0 1 0 202587417 18972672 840 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134579840 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 840 60 107 0 4521 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 18528

[startup+6.25192 s]
/proc/loadavg: 0.75 0.47 0.69 2/78 26059
/proc/meminfo: memFree=286320/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=6.24
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 862 0 0 0 624 0 0 0 25 0 1 0 202587417 18972672 841 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528196 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 18528

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

[startup+6.55895 s]
/proc/loadavg: 0.75 0.47 0.69 2/78 26059
/proc/meminfo: memFree=286320/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=6.55
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 862 0 0 0 655 0 0 0 25 0 1 0 202587417 18972672 841 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134579628 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 18528

[startup+9.83929 s]
/proc/loadavg: 0.77 0.47 0.70 2/78 26059
/proc/meminfo: memFree=286320/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=9.83
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 862 0 0 0 983 0 0 0 25 0 1 0 202587417 18972672 841 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134540290 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 9.83
Current children cumulated vsize (KiB) 18528

[startup+11.4795 s]
/proc/loadavg: 0.77 0.47 0.70 2/78 26059
/proc/meminfo: memFree=286256/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=11.47
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 862 0 0 0 1147 0 0 0 25 0 1 0 202587417 18972672 841 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134562065 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 11.47
Current children cumulated vsize (KiB) 18528

[startup+11.8875 s]
/proc/loadavg: 0.77 0.47 0.70 2/78 26059
/proc/meminfo: memFree=286256/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=11.87
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 862 0 0 0 1187 0 0 0 25 0 1 0 202587417 18972672 841 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134532751 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 11.87
Current children cumulated vsize (KiB) 18528

[startup+12.2955 s]
/proc/loadavg: 0.77 0.47 0.70 2/78 26059
/proc/meminfo: memFree=286256/2055920 swapFree=4192812/4192956
[pid=26058] ppid=26056 vsize=18528 CPUtime=12.28
/proc/26058/stat : 26058 (kcnfs-2004) R 26056 26058 25808 0 -1 0 862 0 0 0 1228 0 0 0 25 0 1 0 202587417 18972672 841 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528259 0 0 4096 0 0 0 0 17 1 0 0
/proc/26058/statm: 4632 841 60 107 0 4521 0
Current children cumulated CPU time (s) 12.28
Current children cumulated vsize (KiB) 18528

Child status: 10
Real time (s): 12.3411
CPU time (s): 12.3371
CPU user time (s): 12.3311
CPU system time (s): 0.005999
CPU usage (%): 99.968
Max. virtual memory (cumulated for all children) (KiB): 18528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.3311
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= 862
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= 252

runsolver used 0.014997 second user time and 0.033994 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Sun Feb 18 19:18:45 UTC 2007

IDJOB= 296685
IDBENCH= 19943
IDSOLVER= 114
FILE ID= node2/296685-1171826325

PBS_JOBID= 3839371

Free space on /tmp= 66543 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1344401737-18.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/296685-1171826325/kcnfs-2004 /tmp/evaluation/296685-1171826325/instance-296685-1171826325.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-296685-1171826325 -o ROOT/results/node2/solver-296685-1171826325 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/296685-1171826325/kcnfs-2004 /tmp/evaluation/296685-1171826325/instance-296685-1171826325.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  ed57e6bcaed7669ca4ea0f0e14afc5f1

RANDOM SEED= 86986062

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:        290128 kB
Buffers:         51564 kB
Cached:        1576016 kB
SwapCached:          0 kB
Active:        1175540 kB
Inactive:       512012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        290128 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3416 kB
Writeback:           0 kB
Mapped:          78832 kB
Slab:            63640 kB
Committed_AS:  1106652 kB
PageTables:       1812 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= 66543 MiB

End job on node2 on Sun Feb 18 19:18:57 UTC 2007