Trace number 294593

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 2006UNSAT 88.3856 88.4162

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1179686861-10.UNSAT.shuffled.cnf
MD5SUMf925586f9b717029fe6870824cb1d191
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark68.9215
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	
0.00/0.00	c Computed by /tmp/evaluation/294593-1171791420/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.01	c Input file : '/tmp/evaluation/294593-1171791420/instance-294593-1171791420.cnf'
0.00/0.01	c [#vars: 50, #clauses: 4450, 7-CNF]
0.00/0.02	c unit clauses propagate before processing (#clause: 4450)
88.35/88.41	c RBSH-propagate until depth 1 (fix point: 6 updates) 
88.35/88.41	s UNSATISFIABLE
88.35/88.41	c Computation time     : 88.380 seconds
88.35/88.41	c Execution time       : 88.390 seconds
88.35/88.41	c Size of search tree  : 272928 nodes
88.35/88.41	c average speed        : 3088.119 nodes/sec.
88.35/88.41

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node39/watcher-294593-1171791420 -o ROOT/results/node39/solver-294593-1171791420 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/294593-1171791420/kcnfs-2006 /tmp/evaluation/294593-1171791420/instance-294593-1171791420.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.02 1.83 1.28 3/64 24856
/proc/meminfo: memFree=982116/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=180908 CPUtime=0
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 199097874 185249792 111 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45227 111 47 158 0 45067 0

[startup+0.106806 s]
/proc/loadavg: 4.02 1.83 1.28 3/64 24856
/proc/meminfo: memFree=982116/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=0.1
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 660 0 0 0 10 0 0 0 18 0 1 0 199097874 186462208 643 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134742972 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 643 62 158 0 45363 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182092

[startup+0.514875 s]
/proc/loadavg: 4.02 1.83 1.28 3/64 24856
/proc/meminfo: memFree=982116/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=0.5
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 660 0 0 0 50 0 0 0 21 0 1 0 199097874 186462208 643 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134755732 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 643 62 158 0 45363 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 182092

[startup+1.33501 s]
/proc/loadavg: 4.02 1.83 1.28 2/65 24857
/proc/meminfo: memFree=979688/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=1.32
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 660 0 0 0 132 0 0 0 25 0 1 0 199097874 186462208 643 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134742972 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 643 62 158 0 45363 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 182092

[startup+2.97431 s]
/proc/loadavg: 4.02 1.83 1.28 2/65 24857
/proc/meminfo: memFree=979496/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=2.96
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 692 0 0 0 296 0 0 0 25 0 1 0 199097874 186462208 675 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134571491 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 675 76 158 0 45363 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 182092

[startup+6.24986 s]
/proc/loadavg: 3.78 1.82 1.28 2/65 24857
/proc/meminfo: memFree=979512/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=6.24
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 624 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134615739 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 182092

[startup+12.702 s]
/proc/loadavg: 3.55 1.80 1.28 2/65 24857
/proc/meminfo: memFree=979448/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=12.69
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 1269 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134560129 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 182092

[startup+25.5041 s]
/proc/loadavg: 2.99 1.76 1.27 2/65 24857
/proc/meminfo: memFree=979448/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=25.48
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 2548 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564064 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 182092

[startup+51.1085 s]
/proc/loadavg: 2.31 1.70 1.26 2/65 24857
/proc/meminfo: memFree=979448/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=51.08
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 5108 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134712495 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 182092

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

[startup+52.4388 s]
/proc/loadavg: 2.31 1.70 1.26 2/65 24857
/proc/meminfo: memFree=979448/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=52.41
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 5241 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134571474 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 52.41
Current children cumulated vsize (KiB) 182092

[startup+65.551 s]
/proc/loadavg: 2.02 1.66 1.26 2/65 24857
/proc/meminfo: memFree=979448/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=65.52
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 6552 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134561426 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 65.52
Current children cumulated vsize (KiB) 182092

[startup+78.6562 s]
/proc/loadavg: 1.86 1.64 1.26 2/65 24857
/proc/meminfo: memFree=979448/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=78.62
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 7862 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572138 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 78.62
Current children cumulated vsize (KiB) 182092

[startup+85.2144 s]
/proc/loadavg: 1.73 1.62 1.25 2/65 24857
/proc/meminfo: memFree=979384/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=85.17
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 8517 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564626 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 85.17
Current children cumulated vsize (KiB) 182092

[startup+86.8546 s]
/proc/loadavg: 1.73 1.62 1.25 2/65 24857
/proc/meminfo: memFree=979384/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=86.81
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 8681 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134570972 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 86.81
Current children cumulated vsize (KiB) 182092

[startup+87.6708 s]
/proc/loadavg: 1.73 1.62 1.25 2/65 24857
/proc/meminfo: memFree=979384/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=87.63
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 8763 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134610976 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 87.63
Current children cumulated vsize (KiB) 182092

[startup+88.0828 s]
/proc/loadavg: 1.73 1.62 1.25 2/65 24857
/proc/meminfo: memFree=979384/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=88.04
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 8804 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569514 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 88.04
Current children cumulated vsize (KiB) 182092

[startup+88.2869 s]
/proc/loadavg: 1.73 1.62 1.25 2/65 24857
/proc/meminfo: memFree=979384/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=88.24
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 8824 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134559505 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 88.24
Current children cumulated vsize (KiB) 182092

[startup+88.3889 s]
/proc/loadavg: 1.73 1.62 1.25 2/65 24857
/proc/meminfo: memFree=979384/2055920 swapFree=4165040/4192956
[pid=24856] ppid=24854 vsize=182092 CPUtime=88.35
/proc/24856/stat : 24856 (kcnfs-2006) R 24854 24856 24110 0 -1 4194304 693 0 0 0 8835 0 0 0 25 0 1 0 199097874 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569540 0 0 4096 0 0 0 0 17 1 0 0
/proc/24856/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 88.35
Current children cumulated vsize (KiB) 182092

Child status: 20
Real time (s): 88.4162
CPU time (s): 88.3856
CPU user time (s): 88.3776
CPU system time (s): 0.007998
CPU usage (%): 99.9654
Max. virtual memory (cumulated for all children) (KiB): 182092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 88.3776
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 703
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= 7
involuntary context switches= 210

runsolver used 0.055991 second user time and 0.188971 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Sun Feb 18 09:37:00 UTC 2007

IDJOB= 294593
IDBENCH= 19892
IDSOLVER= 113
FILE ID= node39/294593-1171791420

PBS_JOBID= 3839582

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S1179686861-10.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/294593-1171791420/kcnfs-2006 /tmp/evaluation/294593-1171791420/instance-294593-1171791420.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-294593-1171791420 -o ROOT/results/node39/solver-294593-1171791420 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/294593-1171791420/kcnfs-2006 /tmp/evaluation/294593-1171791420/instance-294593-1171791420.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  f925586f9b717029fe6870824cb1d191

RANDOM SEED= 658103482

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.285
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		: 3000.285
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:        982600 kB
Buffers:         45508 kB
Cached:         907432 kB
SwapCached:      22248 kB
Active:         766784 kB
Inactive:       214424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        982600 kB
SwapTotal:     4192956 kB
SwapFree:      4165040 kB
Dirty:            3248 kB
Writeback:           0 kB
Mapped:          15456 kB
Slab:            78188 kB
Committed_AS:   510520 kB
PageTables:       1412 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 node39 on Sun Feb 18 09:38:28 UTC 2007