Trace number 312828

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 2006? (exit code) 2.33964 2.34231

General information on the benchmark

Nameindustrial/anbulagan/
hard-sat/partial-10-19-s.cnf
MD5SUMd1c031feea2b01bb6670a4d0116bbd23
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 variables330796
Number of clauses1585788
Sum of the clauses size3686616
Maximum clause length10
Minimum clause length1
Number of clauses of size 124593
Number of clauses of size 21205222
Number of clauses of size 3294753
Number of clauses of size 46800
Number of clauses of size 527200
Number of clauses of size over 527220

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/312828-1176861537/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
2.29/2.32	c this formula cannot been solved by kcnfs
2.29/2.32

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/node50/watcher-312828-1176861537 -o ROOT/results/node50/solver-312828-1176861537 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/312828-1176861537/kcnfs-2006 /tmp/evaluation/312828-1176861537/instance-312828-1176861537.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 0.97 0.98 3/64 5457
/proc/meminfo: memFree=1304960/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=180908 CPUtime=0
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 40998898 185249792 107 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 45227 108 47 158 0 45067 0

[startup+0.0899961 s]
/proc/loadavg: 0.92 0.97 0.98 3/64 5457
/proc/meminfo: memFree=1304960/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=185660 CPUtime=0.08
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 1319 0 0 0 8 0 0 0 18 0 1 0 40998898 190115840 1304 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 46415 1305 47 158 0 46255 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 185660

[startup+0.101996 s]
/proc/loadavg: 0.92 0.97 0.98 3/64 5457
/proc/meminfo: memFree=1304960/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=186452 CPUtime=0.09
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 1490 0 0 0 9 0 0 0 18 0 1 0 40998898 190926848 1475 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 46613 1475 47 158 0 46453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186452

[startup+0.302013 s]
/proc/loadavg: 0.92 0.97 0.98 3/64 5457
/proc/meminfo: memFree=1304960/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=197276 CPUtime=0.29
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 4212 0 0 0 28 1 0 0 19 0 1 0 40998898 202010624 4197 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 49319 4198 47 158 0 49159 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197276

[startup+0.701048 s]
/proc/loadavg: 0.92 0.97 0.98 3/64 5457
/proc/meminfo: memFree=1304960/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=218660 CPUtime=0.69
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 9564 0 0 0 65 4 0 0 22 0 1 0 40998898 223907840 9549 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 54665 9549 47 158 0 54505 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218660

[startup+1.50112 s]
/proc/loadavg: 0.92 0.97 0.98 2/65 5458
/proc/meminfo: memFree=1250936/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=261296 CPUtime=1.49
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 20217 0 0 0 140 9 0 0 25 0 1 0 40998898 267567104 20202 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 65324 20203 47 158 0 65164 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261296

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

[startup+1.90115 s]
/proc/loadavg: 0.92 0.97 0.98 2/65 5458
/proc/meminfo: memFree=1250936/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=282152 CPUtime=1.89
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 25438 0 0 0 178 11 0 0 25 0 1 0 40998898 288923648 25423 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 70538 25424 47 158 0 70378 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 282152

[startup+2.30119 s]
/proc/loadavg: 0.92 0.97 0.98 2/65 5458
/proc/meminfo: memFree=1193400/2055920 swapFree=4183816/4192956
[pid=5457] ppid=5455 vsize=302480 CPUtime=2.29
/proc/5457/stat : 5457 (kcnfs-2006) R 5455 5457 4154 0 -1 4194304 30524 0 0 0 214 15 0 0 25 0 1 0 40998898 309739520 30509 18446744073709551615 134512640 135163436 4294956624 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5457/statm: 75620 30509 47 158 0 75460 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 302480

Child status: 1
Real time (s): 2.34231
CPU time (s): 2.33964
CPU user time (s): 2.16567
CPU system time (s): 0.173973
CPU usage (%): 99.886
Max. virtual memory (cumulated for all children) (KiB): 302480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.16567
system time used= 0.173973
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30813
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 0.002999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Wed Apr 18 01:58:57 UTC 2007

IDJOB= 312828
IDBENCH= 20351
IDSOLVER= 113
FILE ID= node50/312828-1176861537

PBS_JOBID= 4590233

Free space on /tmp= 66491 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/hard-sat/partial-10-19-s.cnf
COMMAND LINE= /tmp/evaluation/312828-1176861537/kcnfs-2006 /tmp/evaluation/312828-1176861537/instance-312828-1176861537.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-312828-1176861537 -o ROOT/results/node50/solver-312828-1176861537 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/312828-1176861537/kcnfs-2006 /tmp/evaluation/312828-1176861537/instance-312828-1176861537.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  d1c031feea2b01bb6670a4d0116bbd23

RANDOM SEED= 43932501

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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:       1305432 kB
Buffers:         41724 kB
Cached:         631128 kB
SwapCached:       3272 kB
Active:         265124 kB
Inactive:       417700 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1305432 kB
SwapTotal:     4192956 kB
SwapFree:      4183816 kB
Dirty:           32472 kB
Writeback:           0 kB
Mapped:          15752 kB
Slab:            53716 kB
Committed_AS:  1004216 kB
PageTables:       1460 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= 66491 MiB

End job on node50 on Wed Apr 18 01:59:00 UTC 2007