Trace number 318088

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 SMP? (exit code) 1.21081 1.2143

General information on the benchmark

Nameindustrial/anbulagan/
hard-unsat/dated-5-17-u.cnf
MD5SUM83ece6745238c422c7e68e5a07fc7f73
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables183464
Number of clauses855717
Sum of the clauses size1974802
Maximum clause length10
Minimum clause length1
Number of clauses of size 115316
Number of clauses of size 2664917
Number of clauses of size 3141084
Number of clauses of size 43820
Number of clauses of size 515280
Number of clauses of size over 515300

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/318088-1176893752/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
1.19/1.20	c this formula cannot be solved by kcnfs-smp
1.19/1.20

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node37/watcher-318088-1176893752 -o ROOT/results/node37/solver-318088-1176893752 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/318088-1176893752/kcnfs-smp /tmp/evaluation/318088-1176893752/instance-318088-1176893752.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: 0.92 0.98 0.99 3/78 23805
/proc/meminfo: memFree=1595664/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=180916 CPUtime=0
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 129 0 0 0 0 0 0 0 18 0 1 0 137287690 185257984 114 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 45229 115 48 160 0 45067 0

[startup+0.0447251 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 23805
/proc/meminfo: memFree=1595664/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=183292 CPUtime=0.03
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 718 0 0 0 3 0 0 0 18 0 1 0 137287690 187691008 703 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 45823 704 48 160 0 45661 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 183292

[startup+0.101735 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 23805
/proc/meminfo: memFree=1595664/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=186592 CPUtime=0.09
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 1538 0 0 0 8 1 0 0 18 0 1 0 137287690 191070208 1523 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 46648 1524 48 160 0 46486 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186592

[startup+0.301773 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 23805
/proc/meminfo: memFree=1595664/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=197680 CPUtime=0.29
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 4307 0 0 0 27 2 0 0 19 0 1 0 137287690 202424320 4292 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 49420 4293 48 160 0 49258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197680

[startup+0.701848 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 23805
/proc/meminfo: memFree=1595664/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=219592 CPUtime=0.69
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 9804 0 0 0 64 5 0 0 22 0 1 0 137287690 224862208 9789 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 54898 9789 48 160 0 54736 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 219592

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

[startup+1.10592 s]
/proc/loadavg: 0.92 0.98 0.99 2/79 23806
/proc/meminfo: memFree=1539976/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=241636 CPUtime=1.09
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 15288 0 0 0 101 8 0 0 25 0 1 0 137287690 247435264 15273 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 60409 15273 48 160 0 60247 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 241636

[startup+1.20194 s]
/proc/loadavg: 0.92 0.98 0.99 2/79 23806
/proc/meminfo: memFree=1539976/2055920 swapFree=4148912/4192956
[pid=23805] ppid=23803 vsize=246652 CPUtime=1.19
/proc/23805/stat : 23805 (kcnfs-smp) R 23803 23805 23368 0 -1 4194304 16565 0 0 0 110 9 0 0 25 0 1 0 137287690 252571648 16550 18446744073709551615 134512640 135172044 4294956672 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 61663 16551 48 160 0 61501 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 246652

Child status: 1
Real time (s): 1.2143
CPU time (s): 1.21081
CPU user time (s): 1.10883
CPU system time (s): 0.101984
CPU usage (%): 99.7131
Max. virtual memory (cumulated for all children) (KiB): 246652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.10883
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16576
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= 3

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node37 on Wed Apr 18 10:55:52 UTC 2007

IDJOB= 318088
IDBENCH= 20379
IDSOLVER= 112
FILE ID= node37/318088-1176893752

PBS_JOBID= 4595149

Free space on /tmp= 66428 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-unsat/dated-5-17-u.cnf
COMMAND LINE= /tmp/evaluation/318088-1176893752/kcnfs-smp /tmp/evaluation/318088-1176893752/instance-318088-1176893752.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node37/watcher-318088-1176893752 -o ROOT/results/node37/solver-318088-1176893752 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/318088-1176893752/kcnfs-smp /tmp/evaluation/318088-1176893752/instance-318088-1176893752.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  83ece6745238c422c7e68e5a07fc7f73

RANDOM SEED= 504553437

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node37.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		: 3000.281
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		: 3000.281
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:       1596072 kB
Buffers:         19604 kB
Cached:         357212 kB
SwapCached:       2828 kB
Active:         149680 kB
Inactive:       252824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1596072 kB
SwapTotal:     4192956 kB
SwapFree:      4148912 kB
Dirty:           18424 kB
Writeback:           0 kB
Mapped:          33128 kB
Slab:            42708 kB
Committed_AS:  1095116 kB
PageTables:       2000 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= 66428 MiB

End job on node37 on Wed Apr 18 10:55:54 UTC 2007