Trace number 294552

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 93.6828 93.7109

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1018594061-02.UNSAT.shuffled.cnf
MD5SUM428b24f39bc6415380a405b76c9b06d9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark66.9038
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/294552-1171790703/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.01	c Input file : '/tmp/evaluation/294552-1171790703/instance-294552-1171790703.cnf'
0.00/0.01	c [#vars: 50, #clauses: 4450, 7-CNF]
0.00/0.02	c unit clauses propagate before processing (#clause: 4450)
93.57/93.70	c RBSH-propagate until depth 1 (fix point: 6 updates) 
93.57/93.70	s UNSATISFIABLE
93.57/93.70	c Computation time     : 93.670 seconds
93.57/93.70	c Execution time       : 93.680 seconds
93.57/93.70	c Size of search tree  : 286357 nodes
93.57/93.70	c average speed        : 3057.083 nodes/sec.
93.57/93.70

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/node63/watcher-294552-1171790703 -o ROOT/results/node63/solver-294552-1171790703 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/294552-1171790703/kcnfs-2006 /tmp/evaluation/294552-1171790703/instance-294552-1171790703.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: 1.00 1.00 1.00 3/64 18475
/proc/meminfo: memFree=526552/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=180908 CPUtime=0
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 199027714 185249792 112 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45227 113 47 158 0 45067 0

[startup+0.10695 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18475
/proc/meminfo: memFree=526552/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=0.1
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 660 0 0 0 10 0 0 0 18 0 1 0 199027714 186462208 643 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134742151 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 643 62 158 0 45363 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 182092

[startup+0.515993 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 18475
/proc/meminfo: memFree=526552/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=0.51
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 660 0 0 0 51 0 0 0 21 0 1 0 199027714 186462208 643 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134755677 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 643 62 158 0 45363 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 182092

[startup+1.33608 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=524112/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=1.33
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 660 0 0 0 133 0 0 0 25 0 1 0 199027714 186462208 643 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134742972 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 643 62 158 0 45363 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 182092

[startup+2.97225 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523920/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=2.96
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 692 0 0 0 296 0 0 0 25 0 1 0 199027714 186462208 675 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134559383 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 675 76 158 0 45363 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 182092

[startup+6.2486 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=6.24
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 624 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564711 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 182092

[startup+12.7053 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523672/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=12.69
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 1269 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134561431 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 182092

[startup+25.5057 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523672/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=25.49
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 2549 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134685532 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 182092

[startup+51.1104 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523672/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=51.08
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 5108 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134571500 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/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+52.4445 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523672/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=52.42
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 5242 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134712495 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 52.42
Current children cumulated vsize (KiB) 182092

[startup+78.6603 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=78.62
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 7862 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569637 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 78.62
Current children cumulated vsize (KiB) 182092

[startup+85.213 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=85.17
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 8517 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134564830 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 85.17
Current children cumulated vsize (KiB) 182092

[startup+88.4924 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=88.45
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 8845 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572191 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 88.45
Current children cumulated vsize (KiB) 182092

[startup+91.7687 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=91.73
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 9173 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572853 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 91.73
Current children cumulated vsize (KiB) 182092

[startup+92.5888 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=92.55
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 9255 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572057 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 92.55
Current children cumulated vsize (KiB) 182092

[startup+93.4049 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=93.36
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 9336 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134569520 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 93.36
Current children cumulated vsize (KiB) 182092

[startup+93.6129 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 18476
/proc/meminfo: memFree=523736/2055920 swapFree=4183348/4192956
[pid=18475] ppid=18473 vsize=182092 CPUtime=93.57
/proc/18475/stat : 18475 (kcnfs-2006) R 18473 18475 17730 0 -1 4194304 693 0 0 0 9357 0 0 0 25 0 1 0 199027714 186462208 676 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134572152 0 0 4096 0 0 0 0 17 1 0 0
/proc/18475/statm: 45523 676 76 158 0 45363 0
Current children cumulated CPU time (s) 93.57
Current children cumulated vsize (KiB) 182092

Child status: 20
Real time (s): 93.7109
CPU time (s): 93.6828
CPU user time (s): 93.6738
CPU system time (s): 0.008998
CPU usage (%): 99.9699
Max. virtual memory (cumulated for all children) (KiB): 182092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 93.6738
system time used= 0.008998
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= 183

runsolver used 0.071989 second user time and 0.19097 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Sun Feb 18 09:25:03 UTC 2007

IDJOB= 294552
IDBENCH= 19891
IDSOLVER= 113
FILE ID= node63/294552-1171790703

PBS_JOBID= 3839552

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-S1018594061-02.UNSAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/294552-1171790703/kcnfs-2006 /tmp/evaluation/294552-1171790703/instance-294552-1171790703.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-294552-1171790703 -o ROOT/results/node63/solver-294552-1171790703 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/294552-1171790703/kcnfs-2006 /tmp/evaluation/294552-1171790703/instance-294552-1171790703.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  428b24f39bc6415380a405b76c9b06d9

RANDOM SEED= 644434118

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:        526960 kB
Buffers:         47112 kB
Cached:        1360056 kB
SwapCached:       3968 kB
Active:         780196 kB
Inactive:       636948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        526960 kB
SwapTotal:     4192956 kB
SwapFree:      4183348 kB
Dirty:            3276 kB
Writeback:           0 kB
Mapped:          15468 kB
Slab:            97772 kB
Committed_AS:   502584 kB
PageTables:       1460 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 node63 on Sun Feb 18 09:26:37 UTC 2007