Trace number 294389

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 64.4222 64.4411

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1390822082-06.SAT.shuffled.cnf
MD5SUM65db25de989ce832e05150660fae21db
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05899
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
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 54450

Solver Data (download as text)

0.00/0.00	
0.00/0.02	c Computed by /tmp/evaluation/294389-1171788685/kcnfs-2004   V. 03/02/12
0.00/0.02	c Input file : '/tmp/evaluation/294389-1171788685/instance-294389-1171788685.cnf'
64.41/64.43	c [50 variables, 4450 clauses, ratio 89.00, mean occ 311, 7-SAT]
64.41/64.43	s SATISFIABLE
64.41/64.43	v   -23     4    48   -42    27
64.41/64.43	v    19    34    24    13    18
64.41/64.43	v    39    31     7     3    21
64.41/64.43	v    22   -37   -50   -10    29
64.41/64.43	v   -11   -35   -47   -49    20
64.41/64.43	v   -14     1    30    44   -38
64.41/64.43	v     5     8    -9     6   -15
64.41/64.43	v    32   -12   -41   -36   -45
64.41/64.43	v    16    43   -17    -2   -40
64.41/64.43	v   -28   -33    46   -25   -26
64.41/64.43	v     0
64.41/64.43	c Computation time    : 64.400 seconds
64.41/64.43	c Execution time      : 64.420 seconds
64.41/64.43	c Size of search tree : 197266 nodes
64.41/64.43

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/node58/watcher-294389-1171788685 -o ROOT/results/node58/solver-294389-1171788685 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/294389-1171788685/kcnfs-2004 /tmp/evaluation/294389-1171788685/instance-294389-1171788685.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: 7.97 7.15 4.44 3/64 5221
/proc/meminfo: memFree=1040688/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=16020 CPUtime=0
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 94 0 0 0 0 0 0 0 18 0 1 0 198825216 16404480 74 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4005 74 38 107 0 3894 0

[startup+0.107748 s]
/proc/loadavg: 7.97 7.15 4.44 3/64 5221
/proc/meminfo: memFree=1040688/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=0.1
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 941 0 0 0 10 0 0 0 18 0 1 0 198825216 19271680 920 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528195 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 920 60 107 0 4594 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 18820

[startup+0.519793 s]
/proc/loadavg: 7.97 7.15 4.44 3/64 5221
/proc/meminfo: memFree=1040688/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=0.51
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 943 0 0 0 51 0 0 0 22 0 1 0 198825216 19271680 922 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134531787 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 922 60 107 0 4594 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 18820

[startup+1.33988 s]
/proc/loadavg: 7.41 7.05 4.42 2/65 5222
/proc/meminfo: memFree=1037224/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=1.33
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 943 0 0 0 133 0 0 0 25 0 1 0 198825216 19271680 922 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528282 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 922 60 107 0 4594 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 18820

[startup+2.97606 s]
/proc/loadavg: 7.41 7.05 4.42 2/65 5222
/proc/meminfo: memFree=1037096/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=2.96
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 943 0 0 0 296 0 0 0 25 0 1 0 198825216 19271680 922 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134530247 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 922 60 107 0 4594 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 18820

[startup+6.25242 s]
/proc/loadavg: 6.90 6.95 4.40 2/65 5222
/proc/meminfo: memFree=1036976/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=6.24
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 943 0 0 0 624 0 0 0 25 0 1 0 198825216 19271680 922 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134533490 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 922 60 107 0 4594 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 18820

[startup+12.7081 s]
/proc/loadavg: 6.43 6.85 4.39 2/65 5222
/proc/meminfo: memFree=1036912/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=12.69
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 943 0 0 0 1269 0 0 0 25 0 1 0 198825216 19271680 922 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134571526 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 922 60 107 0 4594 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 18820

[startup+25.5085 s]
/proc/loadavg: 5.59 6.65 4.35 2/65 5222
/proc/meminfo: memFree=1036976/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=25.49
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 943 0 0 0 2549 0 0 0 25 0 1 0 198825216 19271680 922 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134529762 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 922 60 107 0 4594 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 18820

[startup+51.1154 s]
/proc/loadavg: 3.78 6.11 4.24 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=51.09
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 5109 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528631 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 18820

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

[startup+52.4515 s]
/proc/loadavg: 3.78 6.11 4.24 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=52.43
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 5243 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134533407 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 52.43
Current children cumulated vsize (KiB) 18820

[startup+59.0032 s]
/proc/loadavg: 3.56 6.03 4.22 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=58.98
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 5898 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134580450 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 58.98
Current children cumulated vsize (KiB) 18820

[startup+62.2846 s]
/proc/loadavg: 3.35 5.94 4.21 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=62.26
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 6226 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134533473 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 62.26
Current children cumulated vsize (KiB) 18820

[startup+63.1007 s]
/proc/loadavg: 3.35 5.94 4.21 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=63.08
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 6308 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528259 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 63.08
Current children cumulated vsize (KiB) 18820

[startup+63.9208 s]
/proc/loadavg: 3.35 5.94 4.21 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=63.89
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 6389 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528795 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 63.89
Current children cumulated vsize (KiB) 18820

[startup+64.3328 s]
/proc/loadavg: 3.35 5.94 4.21 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=64.3
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 6430 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134560471 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 64.3
Current children cumulated vsize (KiB) 18820

[startup+64.4348 s]
/proc/loadavg: 3.35 5.94 4.21 2/65 5222
/proc/meminfo: memFree=1037040/2055920 swapFree=4183260/4192956
[pid=5221] ppid=5219 vsize=18820 CPUtime=64.41
/proc/5221/stat : 5221 (kcnfs-2004) R 5219 5221 4713 0 -1 0 944 0 0 0 6441 0 0 0 25 0 1 0 198825216 19271680 923 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134533137 0 0 4096 0 0 0 0 17 1 0 0
/proc/5221/statm: 4705 923 60 107 0 4594 0
Current children cumulated CPU time (s) 64.41
Current children cumulated vsize (KiB) 18820

Child status: 10
Real time (s): 64.4411
CPU time (s): 64.4222
CPU user time (s): 64.4162
CPU system time (s): 0.005999
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 18820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 64.4162
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= 944
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= 75

runsolver used 0.041993 second user time and 0.139978 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Sun Feb 18 08:51:25 UTC 2007

IDJOB= 294389
IDBENCH= 19887
IDSOLVER= 114
FILE ID= node58/294389-1171788685

PBS_JOBID= 3839563

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S1390822082-06.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/294389-1171788685/kcnfs-2004 /tmp/evaluation/294389-1171788685/instance-294389-1171788685.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-294389-1171788685 -o ROOT/results/node58/solver-294389-1171788685 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/294389-1171788685/kcnfs-2004 /tmp/evaluation/294389-1171788685/instance-294389-1171788685.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  65db25de989ce832e05150660fae21db

RANDOM SEED= 431079964

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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		: 3000.234
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		: 3000.234
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:       1041160 kB
Buffers:         50752 kB
Cached:         853836 kB
SwapCached:       4096 kB
Active:         578968 kB
Inactive:       335776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1041160 kB
SwapTotal:     4192956 kB
SwapFree:      4183260 kB
Dirty:            3260 kB
Writeback:           0 kB
Mapped:          15588 kB
Slab:            86144 kB
Committed_AS:   450376 kB
PageTables:       1380 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= 66561 MiB

End job on node58 on Sun Feb 18 08:52:30 UTC 2007