Trace number 294750

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
picosat 535SAT 8.41472 8.4181

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1718130589-01.SAT.shuffled.cnf
MD5SUM92a81fb7daa035c842fe0ed87fafd083
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.411936
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)

8.39/8.41	s SATISFIABLE
8.39/8.41	v 1 -2 -3 -4 5 -6 -7 8 -9 -10 -11 12 13 14 15 16 17 -18 19 -20 -21 22 -23 24
8.39/8.41	v -25 -26 -27 -28 29 -30 -31 -32 -33 -34 35 -36 -37 38 39 40 -41 -42 -43 44 -45
8.39/8.41	v 46 47 48 49 -50 0

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/node14/watcher-294750-1171793984 -o ROOT/results/node14/solver-294750-1171793984 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/294750-1171793984/picosat /tmp/evaluation/294750-1171793984/instance-294750-1171793984.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 3/77 27149
/proc/meminfo: memFree=1339320/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=568 CPUtime=0
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 68 0 0 0 0 0 0 0 18 0 1 0 199352849 581632 53 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 142 54 40 102 0 37 0

[startup+0.10663 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 27149
/proc/meminfo: memFree=1339320/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=836 CPUtime=0.1
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 145 0 0 0 6 4 0 0 18 0 1 0 199352849 856064 130 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 209 130 42 102 0 104 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 836

[startup+0.514668 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 27149
/proc/meminfo: memFree=1339320/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=968 CPUtime=0.5
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 183 0 0 0 46 4 0 0 22 0 1 0 199352849 991232 166 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525778 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 242 166 48 102 0 137 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 968

[startup+1.33475 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338736/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=968 CPUtime=1.32
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 200 0 0 0 128 4 0 0 25 0 1 0 199352849 991232 183 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 242 183 48 102 0 137 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 968

[startup+2.9739 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338544/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=1092 CPUtime=2.96
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 219 0 0 0 292 4 0 0 25 0 1 0 199352849 1118208 202 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 273 202 48 102 0 168 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1092

[startup+6.25321 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338416/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=1272 CPUtime=6.24
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 250 0 0 0 620 4 0 0 25 0 1 0 199352849 1302528 233 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 318 233 48 102 0 213 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1272

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

[startup+6.55924 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338416/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=1272 CPUtime=6.55
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 252 0 0 0 651 4 0 0 25 0 1 0 199352849 1302528 235 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134520253 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 318 235 48 102 0 213 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 1272

[startup+7.37932 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338416/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=1272 CPUtime=7.37
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 257 0 0 0 733 4 0 0 25 0 1 0 199352849 1302528 240 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 318 240 48 102 0 213 0
Current children cumulated CPU time (s) 7.37
Current children cumulated vsize (KiB) 1272

[startup+8.1994 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338352/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=1272 CPUtime=8.19
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 262 0 0 0 815 4 0 0 25 0 1 0 199352849 1302528 245 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134549296 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 318 245 48 102 0 213 0
Current children cumulated CPU time (s) 8.19
Current children cumulated vsize (KiB) 1272

[startup+8.40342 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 27150
/proc/meminfo: memFree=1338352/2055920 swapFree=4192812/4192956
[pid=27149] ppid=27147 vsize=1272 CPUtime=8.39
/proc/27149/stat : 27149 (picosat) R 27147 27149 25841 0 -1 4194304 265 0 0 0 835 4 0 0 25 0 1 0 199352849 1302528 248 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/27149/statm: 318 248 48 102 0 213 0
Current children cumulated CPU time (s) 8.39
Current children cumulated vsize (KiB) 1272

Child status: 10
Real time (s): 8.4181
CPU time (s): 8.41472
CPU user time (s): 8.36873
CPU system time (s): 0.045993
CPU usage (%): 99.9599
Max. virtual memory (cumulated for all children) (KiB): 1272

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.36873
system time used= 0.045993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 271
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= 26

runsolver used 0.007998 second user time and 0.026995 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Sun Feb 18 10:19:44 UTC 2007

IDJOB= 294750
IDBENCH= 19896
IDSOLVER= 106
FILE ID= node14/294750-1171793984

PBS_JOBID= 3839306

Free space on /tmp= 66551 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S1718130589-01.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/294750-1171793984/picosat /tmp/evaluation/294750-1171793984/instance-294750-1171793984.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-294750-1171793984 -o ROOT/results/node14/solver-294750-1171793984 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/294750-1171793984/picosat /tmp/evaluation/294750-1171793984/instance-294750-1171793984.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  92a81fb7daa035c842fe0ed87fafd083

RANDOM SEED= 332457491

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.216
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		: 3000.216
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:       1339728 kB
Buffers:         70168 kB
Cached:         511028 kB
SwapCached:          0 kB
Active:         407088 kB
Inactive:       228080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1339728 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             700 kB
Writeback:           0 kB
Mapped:          72868 kB
Slab:            66564 kB
Committed_AS:   706672 kB
PageTables:       1736 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= 66551 MiB

End job on node14 on Sun Feb 18 10:19:53 UTC 2007