Trace number 356582

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 3.58345 3.58628

General information on the benchmark

Nameindustrial/babic/
xinetd/itox_vc1216.cnf
MD5SUMc076019a7fab0d8f88cfc5880f64abd3
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.341947
Satisfiable
(Un)Satisfiability was proved
Number of variables151619
Number of clauses440151
Sum of the clauses size1138189
Maximum clause length3
Minimum clause length1
Number of clauses of size 110189
Number of clauses of size 2161886
Number of clauses of size 3268076
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

3.48/3.58	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node41/watcher-356582-1177543205 -o ROOT/results/node41/solver-356582-1177543205 -C 10000 -W 15000 -M 1800 --output-limit 1,15 /tmp/evaluation/356582-1177543205/picosat /tmp/evaluation/356582-1177543205/instance-356582-1177543205.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 15000 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: 0.94 0.94 0.64 3/77 15476
/proc/meminfo: memFree=1829760/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=1084 CPUtime=0
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 203 0 0 0 0 0 0 0 18 0 1 0 202232473 1110016 189 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 271 189 40 102 0 166 0

[startup+0.0551401 s]
/proc/loadavg: 0.94 0.94 0.64 3/77 15476
/proc/meminfo: memFree=1829760/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=8700 CPUtime=0.04
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 1652 0 0 0 3 1 0 0 18 0 1 0 202232473 8908800 1600 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134526214 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 2175 1601 40 102 0 2070 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 8700

[startup+0.101277 s]
/proc/loadavg: 0.94 0.94 0.64 3/77 15476
/proc/meminfo: memFree=1829760/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=16796 CPUtime=0.09
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 2489 0 0 0 6 3 0 0 18 0 1 0 202232473 17199104 2437 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 4199 2437 40 102 0 4094 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16796

[startup+0.30116 s]
/proc/loadavg: 0.94 0.94 0.64 3/77 15476
/proc/meminfo: memFree=1829760/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=17588 CPUtime=0.29
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 2673 0 0 0 14 15 0 0 19 0 1 0 202232473 18010112 2621 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 4397 2621 40 102 0 4292 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17588

[startup+0.701194 s]
/proc/loadavg: 0.94 0.94 0.64 3/77 15476
/proc/meminfo: memFree=1829760/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=19036 CPUtime=0.69
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 3045 0 0 0 33 36 0 0 22 0 1 0 202232473 19492864 2993 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 4759 2993 40 102 0 4654 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19036

[startup+1.50127 s]
/proc/loadavg: 0.94 0.94 0.64 2/78 15477
/proc/meminfo: memFree=1816760/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=21932 CPUtime=1.49
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 3788 0 0 0 66 83 0 0 25 0 1 0 202232473 22458368 3736 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 5483 3736 40 102 0 5378 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21932

[startup+3.1014 s]
/proc/loadavg: 0.94 0.94 0.64 2/78 15477
/proc/meminfo: memFree=1812472/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=27856 CPUtime=3.09
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 5249 0 0 0 142 167 0 0 25 0 1 0 202232473 28524544 5197 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 6964 5197 40 102 0 6859 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 27856

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

[startup+3.50144 s]
/proc/loadavg: 0.94 0.94 0.64 2/78 15477
/proc/meminfo: memFree=1808568/2055920 swapFree=4169724/4192956
[pid=15476] ppid=15474 vsize=30200 CPUtime=3.48
/proc/15476/stat : 15476 (picosat) R 15474 15476 15138 0 -1 4194304 5595 0 0 0 159 189 0 0 25 0 1 0 202232473 30924800 5543 18446744073709551615 134512640 134931368 4294956672 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/15476/statm: 7550 5543 40 102 0 7445 0
Current children cumulated CPU time (s) 3.48
Current children cumulated vsize (KiB) 30200

Child status: 20
Real time (s): 3.58628
CPU time (s): 3.58345
CPU user time (s): 1.66675
CPU system time (s): 1.91671
CPU usage (%): 99.9211
Max. virtual memory (cumulated for all children) (KiB): 30200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.66675
system time used= 1.91671
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5698
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= 4

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Wed Apr 25 23:20:06 UTC 2007

IDJOB= 356582
IDBENCH= 20515
IDSOLVER= 171
FILE ID= node41/356582-1177543205

PBS_JOBID= 4695898

Free space on /tmp= 66352 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/itox_vc1216.cnf
COMMAND LINE= /tmp/evaluation/356582-1177543205/picosat /tmp/evaluation/356582-1177543205/instance-356582-1177543205.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-356582-1177543205 -o ROOT/results/node41/solver-356582-1177543205 -C 10000 -W 15000 -M 1800 --output-limit 1,15  /tmp/evaluation/356582-1177543205/picosat /tmp/evaluation/356582-1177543205/instance-356582-1177543205.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  c076019a7fab0d8f88cfc5880f64abd3

RANDOM SEED= 141302210

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.232
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		: 3000.232
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:       1830232 kB
Buffers:         18972 kB
Cached:          91816 kB
SwapCached:       2432 kB
Active:         151784 kB
Inactive:        26344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1830232 kB
SwapTotal:     4192956 kB
SwapFree:      4169724 kB
Dirty:            8960 kB
Writeback:           0 kB
Mapped:          75480 kB
Slab:            32776 kB
Committed_AS:  3520584 kB
PageTables:       2112 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= 66352 MiB

End job on node41 on Wed Apr 25 23:20:10 UTC 2007