Trace number 318864

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 535UNSAT 4.17736 4.17975

General information on the benchmark

Nameindustrial/babic/hsatv17/
hsat_vc12016.cnf
MD5SUM240b13662b1715595ba6c034fd886d0b
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.21081
Satisfiable
(Un)Satisfiability was proved
Number of variables162939
Number of clauses456921
Sum of the clauses size1177547
Maximum clause length3
Minimum clause length1
Number of clauses of size 120880
Number of clauses of size 2151456
Number of clauses of size 3284585
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

4.09/4.17	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node44/watcher-318864-1176322657 -o ROOT/results/node44/solver-318864-1176322657 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318864-1176322657/picosat /tmp/evaluation/318864-1176322657/instance-318864-1176322657.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.93 0.95 0.97 3/64 796
/proc/meminfo: memFree=1805360/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=888 CPUtime=0
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 80177420 909312 127 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 222 127 40 102 0 117 0

[startup+0.052833 s]
/proc/loadavg: 0.93 0.95 0.97 3/64 796
/proc/meminfo: memFree=1805360/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=4772 CPUtime=0.04
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 1049 0 0 0 2 2 0 0 18 0 1 0 80177420 4886528 1006 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134526214 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 1193 1006 40 102 0 1088 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4772

[startup+0.101836 s]
/proc/loadavg: 0.93 0.95 0.97 3/64 796
/proc/meminfo: memFree=1805360/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=8916 CPUtime=0.09
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 1968 0 0 0 5 4 0 0 18 0 1 0 80177420 9129984 1925 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 2229 1929 40 102 0 2124 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8916

[startup+0.301856 s]
/proc/loadavg: 0.93 0.95 0.97 3/64 796
/proc/meminfo: memFree=1805360/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=17644 CPUtime=0.29
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 2861 0 0 0 13 16 0 0 19 0 1 0 80177420 18067456 2818 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 4411 2818 40 102 0 4306 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17644

[startup+0.701896 s]
/proc/loadavg: 0.93 0.95 0.97 3/64 796
/proc/meminfo: memFree=1805360/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=19092 CPUtime=0.69
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 3226 0 0 0 31 38 0 0 22 0 1 0 80177420 19550208 3183 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 4773 3183 40 102 0 4668 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19092

[startup+1.50198 s]
/proc/loadavg: 0.93 0.95 0.97 2/65 797
/proc/meminfo: memFree=1791464/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=22120 CPUtime=1.49
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 3959 0 0 0 67 82 0 0 25 0 1 0 80177420 22650880 3916 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 5530 3916 40 102 0 5425 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 22120

[startup+3.10114 s]
/proc/loadavg: 0.93 0.95 0.97 2/65 797
/proc/meminfo: memFree=1787432/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=27912 CPUtime=3.09
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 5411 0 0 0 137 172 0 0 25 0 1 0 80177420 28581888 5368 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 6978 5368 40 102 0 6873 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 27912

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

[startup+3.90123 s]
/proc/loadavg: 0.93 0.95 0.97 2/65 797
/proc/meminfo: memFree=1783400/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=32848 CPUtime=3.89
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 6078 0 0 0 184 205 0 0 25 0 1 0 80177420 33636352 6024 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 8212 6024 42 102 0 8107 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 32848

[startup+4.10125 s]
/proc/loadavg: 0.93 0.95 0.97 2/65 797
/proc/meminfo: memFree=1783400/2055920 swapFree=4191268/4192956
[pid=796] ppid=794 vsize=32848 CPUtime=4.09
/proc/796/stat : 796 (picosat) R 794 796 31822 0 -1 4194304 6082 0 0 0 204 205 0 0 25 0 1 0 80177420 33636352 6028 18446744073709551615 134512640 134931368 4294956592 18446744073709551615 134544928 0 0 4096 0 0 0 0 17 1 0 0
/proc/796/statm: 8212 6028 42 102 0 8107 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 32848

Child status: 20
Real time (s): 4.17975
CPU time (s): 4.17736
CPU user time (s): 2.11568
CPU system time (s): 2.06169
CPU usage (%): 99.943
Max. virtual memory (cumulated for all children) (KiB): 32848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.11568
system time used= 2.06169
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6087
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= 11

runsolver used 0.007998 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Wed Apr 11 20:17:37 UTC 2007

IDJOB= 318864
IDBENCH= 20465
IDSOLVER= 106
FILE ID= node44/318864-1176322657

PBS_JOBID= 4516704

Free space on /tmp= 66556 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/hsatv17/hsat_vc12016.cnf
COMMAND LINE= /tmp/evaluation/318864-1176322657/picosat /tmp/evaluation/318864-1176322657/instance-318864-1176322657.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-318864-1176322657 -o ROOT/results/node44/solver-318864-1176322657 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318864-1176322657/picosat /tmp/evaluation/318864-1176322657/instance-318864-1176322657.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  240b13662b1715595ba6c034fd886d0b

RANDOM SEED= 911066138

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.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:       1805704 kB
Buffers:         11832 kB
Cached:         136228 kB
SwapCached:        384 kB
Active:          52384 kB
Inactive:       110148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805704 kB
SwapTotal:     4192956 kB
SwapFree:      4191268 kB
Dirty:            9336 kB
Writeback:           0 kB
Mapped:          23292 kB
Slab:            73672 kB
Committed_AS:   112368 kB
PageTables:       1396 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 node44 on Wed Apr 11 20:17:41 UTC 2007