Trace number 310820

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
Rsat 2007-02-08UNSAT 1.13483 1.15369

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1240130681-11-UNSAT.cnf
MD5SUM76f071535d514b4b4cd5d986eb064c1d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.396938
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Parsing...
0.00/0.00	c ==============================================================================
0.00/0.00	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.00	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.00	c ==============================================================================
0.00/0.00	c |         0 |    4026    11273 |    1207       0        0     nan |  0.000 % |
0.00/0.02	c |         0 |    3764    11209 |      --       0       --      -- |     --   | -262/-64
0.00/0.02	c ==============================================================================
0.00/0.02	c Result  :   #vars: 1093   #clauses: 3764   #literals: 11209
0.00/0.02	c CPU time:   0.019996 s
0.00/0.02	c ==============================================================================
0.00/0.03	c Rsat version 2.00
1.11/1.13	c CNF stats: (1093 vars, 3764 clauses)
1.11/1.13	c Decisions: 14206
1.11/1.13	c Conflicts: 11565
1.11/1.13	c Time: 1.10000s
1.11/1.13	s UNSATISFIABLE

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/node71/watcher-310820-1172562096 -o ROOT/results/node71/solver-310820-1172562096 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310820-1172562096/rsat.sh /tmp/evaluation/310820-1172562096/instance-310820-1172562096.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: 0.91 0.95 0.90 3/64 22126
/proc/meminfo: memFree=1874432/2055920 swapFree=4182996/4192956
[pid=22126] ppid=22124 vsize=5352 CPUtime=0
/proc/22126/stat : 22126 (rsat.sh) S 22124 22126 20721 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 276167415 5480448 232 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/22126/statm: 1338 232 195 169 0 49 0
[pid=22127] ppid=22126 vsize=952 CPUtime=0
/proc/22127/stat : 22127 (SatElite) R 22126 22126 20721 0 -1 4194304 161 0 0 0 0 0 0 0 19 0 1 0 276167415 974848 143 18446744073709551615 134512640 135038345 4294956768 18446744073709551615 134699389 0 0 4096 3 0 0 0 17 1 0 0
/proc/22127/statm: 238 144 49 128 0 107 0

[startup+0.106666 s]
/proc/loadavg: 0.91 0.95 0.90 3/64 22126
/proc/meminfo: memFree=1874432/2055920 swapFree=4182996/4192956
[pid=22126] ppid=22124 vsize=5352 CPUtime=0.02
/proc/22126/stat : 22126 (rsat.sh) S 22124 22126 20721 0 -1 4194304 305 268 0 0 0 0 2 0 16 0 1 0 276167415 5480448 234 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22126/statm: 1338 234 195 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

[startup+0.514755 s]
/proc/loadavg: 0.91 0.95 0.90 3/64 22126
/proc/meminfo: memFree=1874432/2055920 swapFree=4182996/4192956
[pid=22126] ppid=22124 vsize=5352 CPUtime=0.02
/proc/22126/stat : 22126 (rsat.sh) S 22124 22126 20721 0 -1 4194304 305 268 0 0 0 0 2 0 16 0 1 0 276167415 5480448 234 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22126/statm: 1338 234 195 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

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

[startup+0.82082 s]
/proc/loadavg: 0.91 0.95 0.90 3/64 22126
/proc/meminfo: memFree=1874432/2055920 swapFree=4182996/4192956
[pid=22126] ppid=22124 vsize=5352 CPUtime=0.02
/proc/22126/stat : 22126 (rsat.sh) S 22124 22126 20721 0 -1 4194304 305 268 0 0 0 0 2 0 16 0 1 0 276167415 5480448 234 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22126/statm: 1338 234 195 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

[startup+1.02486 s]
/proc/loadavg: 0.91 0.95 0.90 3/64 22126
/proc/meminfo: memFree=1874432/2055920 swapFree=4182996/4192956
[pid=22126] ppid=22124 vsize=5352 CPUtime=0.02
/proc/22126/stat : 22126 (rsat.sh) S 22124 22126 20721 0 -1 4194304 305 268 0 0 0 0 2 0 16 0 1 0 276167415 5480448 234 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22126/statm: 1338 234 195 169 0 49 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5352

[startup+1.12689 s]
/proc/loadavg: 0.91 0.95 0.90 2/66 22129
/proc/meminfo: memFree=1873072/2055920 swapFree=4182996/4192956
[pid=22126] ppid=22124 vsize=5352 CPUtime=0.02
/proc/22126/stat : 22126 (rsat.sh) S 22124 22126 20721 0 -1 4194304 305 268 0 0 0 0 2 0 16 0 1 0 276167415 5480448 234 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 231962370884 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22126/statm: 1338 234 195 169 0 49 0
[pid=22129] ppid=22126 vsize=1984 CPUtime=1.09
/proc/22129/stat : 22129 (rsat) R 22126 22126 20721 0 -1 4194304 373 0 0 0 109 0 0 0 25 0 1 0 276167418 2031616 343 18446744073709551615 134512640 135377749 4294956864 18446744073709551615 134522801 0 0 4096 1026 0 0 0 17 1 0 0
/proc/22129/statm: 496 343 86 211 0 282 0
Current children cumulated CPU time (s) 1.11
Current children cumulated vsize (KiB) 7336

Child status: 20
Real time (s): 1.15369
CPU time (s): 1.13483
CPU user time (s): 1.12483
CPU system time (s): 0.009998
CPU usage (%): 98.3652
Max. virtual memory (cumulated for all children) (KiB): 7336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12483
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1106
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= 29
involuntary context switches= 7

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Tue Feb 27 07:41:36 UTC 2007

IDJOB= 310820
IDBENCH= 20297
IDSOLVER= 104
FILE ID= node71/310820-1172562096

PBS_JOBID= 3971857

Free space on /tmp= 66556 MiB

SOLVER NAME= Rsat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1240130681-11-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310820-1172562096/rsat.sh /tmp/evaluation/310820-1172562096/instance-310820-1172562096.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-310820-1172562096 -o ROOT/results/node71/solver-310820-1172562096 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310820-1172562096/rsat.sh /tmp/evaluation/310820-1172562096/instance-310820-1172562096.cnf            

META MD5SUM SOLVER= 42fb71d21991acbdd759c16645f65450
MD5SUM BENCH=  76f071535d514b4b4cd5d986eb064c1d

RANDOM SEED= 636713756

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:       1874840 kB
Buffers:         26200 kB
Cached:         108392 kB
SwapCached:       3788 kB
Active:          64892 kB
Inactive:        79236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1874840 kB
SwapTotal:     4192956 kB
SwapFree:      4182996 kB
Dirty:            1728 kB
Writeback:           0 kB
Mapped:          15328 kB
Slab:            22932 kB
Committed_AS:   772856 kB
PageTables:       1448 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= 66556 MiB

End job on node71 on Tue Feb 27 07:41:38 UTC 2007